Дискретные полупроводники
Подкатегории
Товары (1814)
MMBT8099LT1G - 80V NPN BJT Amplifier Transistor | onsemi SOT-23
The onsemi MMBT8099LT1G is an NPN silicon bipolar junction transistor (BJT) housed in a 3-pin SOT-23-3 (TO-236) surface-mount package, designed for general-purpose small-signal amplification and switching. Key headline parameters include a collector-emitter voltage rating of 80 V (VCEO), continuous collector current of 500 mA, transition frequency of 150 MHz, and total power dissipation of 225 mW on a standard FR-5 board. An NPN BJT (bipolar junction transistor) is a three-terminal semiconductor device in which a small base current controls a much larger collector current through forward-biased base-emitter and reverse-biased base-collector junctions. BJTs sit within the broader category hierarchy of discrete semiconductors -> transistors -> bipolar transistors -> small-signal/amplifier transistors, and remain widely used where low noise, predictable gain, and high transconductance are needed at modest cost. Key features of the MMBT8099LT1G include a high VCEO of 80 V that gives substantial headroom for line-powered applications, a continuous collector current of 500 mA that is high for a SOT-23 part, and a 150 MHz transition frequency (fT) that supports RF and high-speed switching circuits. The device is Pb-free and Halogen Free/BFR Free, meeting modern environmental compliance requirements. From an architectural standpoint, the MMBT8099LT1G uses a vertical NPN epitaxial silicon process that balances voltage capability with reasonable current handling in the compact SOT-23 footprint. The device is intended as a general-purpose amplifier, so its DC current gain (hFE) is optimized across a wide collector current range, and the safe operating area reflects typical small-signal transistor limits rather than power-switching derating. Typical applications include general-purpose amplifier stages, signal switching, driver stages for relays and LEDs, RF and IF amplification to 150 MHz, and interface circuits between logic levels and higher-power loads. The high VCEO makes the part especially useful at the high side of 48 V telecom rails or in offline control signal paths. When designing with this device, observe the 225 mW dissipation limit on FR-5 boards and derate linearly above 25 C. For switching applications, base drive must supply sufficient base current to keep the device in saturation under worst-case load and temperature conditions. This page synthesizes distributor stock and pricing, validated cross-reference alternatives, and practical design notes that complement the manufacturer datasheet to support component selection and PCB layout decisions.
MMBTA06LT1G - 80V 500mA NPN BJT Driver Transistor | onsemi
The onsemi MMBTA06LT1G is an 80V, 500mA NPN silicon bipolar junction transistor (BJT) housed in a 3-pin SOT-23-3 (TO-236) surface-mount package with 100MHz transition frequency and 225mW maximum power dissipation. Designed as a general-purpose driver transistor, it offers a minimum DC current gain (hFE) of 100 at 100mA collector current and 1V VCE, making it well suited for low-power switching, amplification, and interface-driver roles. A bipolar junction transistor (BJT) is a three-terminal semiconductor device in which a small base current controls a much larger collector current through the principle of current-controlled conduction. The NPN variant conducts when the base is pulled above the emitter by roughly 0.7V. BJTs sit within the broader transistor family alongside MOSFETs and IGBTs, and within the discrete-semiconductor category above diodes, providing amplification and saturated-switching functions in millions of analog and digital designs. Key features of the MMBTA06LT1G include a VCEO rating of 80V, VCBO of 80V, and VEBO of 4V; continuous collector current of 500mA; a 100MHz current-gain bandwidth product (fT) that supports moderate-speed switching; and a maximum collector power dissipation of 225mW when properly derated across the -55C to +150C operating junction-temperature range. The Pb-free, halogen-free construction supports RoHS-compliant assemblies. The device uses a planar epitaxial silicon process and the industry-standard SOT-23 footprint, which permits direct drop-in substitution on existing PCB land patterns. The 100MHz fT and 100 hFE at 100mA place it firmly in the small-signal general-purpose category rather than high-frequency or power-switching use. Typical applications include MOSFET gate drivers, relay and solenoid drivers, interface logic level shifters, signal amplification, DC-DC converter pass elements, and LED drivers. The 80V collector rating provides substantial headroom for inductive loads such as relays and small motors. When designing with this part, ensure that average collector dissipation stays below 225mW with appropriate copper-foil area or thermal vias, and place a base series resistor to limit base current during saturated switching. For higher-current or higher-voltage alternatives, onsemi also offers the MMBTA06LT3G (same die, different reel quantity) and the SMMBTA06LT1G automotive-grade version. This page consolidates onsemi distributor pricing, drop-in alternatives, application guidance, and design notes that complement, and extend beyond, the manufacturer datasheet.
MMDL914T1G - 100V 200mA High-Speed Switching Diode | onsemi
The onsemi MMDL914T1G is a high-speed small-signal switching diode rated at 100 V reverse voltage and 200 mA average forward current, housed in a compact SOD-323 surface-mount package. Per the onsemi datasheet, this part is qualified to AEC-Q101 and PPAP capable for automotive applications, supports Pb-free and halogen-free/BFR-free reflow profiles, and operates across a -55 C to +150 C junction and storage temperature range. It is designed specifically for high-speed switching tasks where low capacitance and fast reverse recovery directly affect signal integrity. A switching diode is a two-terminal semiconductor device optimized for fast transitions between its conducting (forward-biased) and blocking (reverse-biased) states. In the broader component hierarchy, switching diodes fall under small-signal diodes, which sit within discrete semiconductors and ultimately under the power management and signal-conditioning umbrella. Unlike rectifier diodes (designed for 50/60 Hz mains rectification), switching diodes target kilohertz-to-megahertz switching in logic-level translation, clamping, protection, and waveform-shaping circuits. Key specifications include a 100 V maximum repetitive peak reverse voltage, 200 mA average rectified forward current, a forward voltage drop of approximately 1.0 V at 10 mA, ultra-fast reverse recovery time on the order of a few nanoseconds, and a low junction capacitance. These characteristics enable clean high-speed switching without the slow tail current that slower diodes exhibit, which would otherwise distort fast edges. The SOD-323 package occupies a footprint roughly 40% smaller than the legacy SOD-123, saving board area in dense designs. The architecture uses a planar silicon PN junction with optimized minority carrier lifetime control to achieve fast turn-off. This same construction also yields low leakage across the rated voltage and predictable temperature behavior, making it suitable for circuits that must operate reliably across wide thermal swings. Its automotive-grade qualification (AEC-Q101) reflects onsemi's ability to deliver PPAP documentation and stricter process control for OEM supply chains. Typical applications include high-speed logic switching, signal steering and routing in multiplexers, voltage clamping and protection in data lines, freewheeling diodes for small inductive loads, and general-purpose rectification in low-current rails. Engineers frequently select the MMDL914T1G in place of the legacy 1N914 in modern surface-mount designs. The compact SOD-323 footprint also makes it attractive for portable and IoT hardware where PCB area is at a premium. When designing with this diode, observe the 200 mA average forward current limit and provide adequate thermal copper to keep junction temperature within the -55 C to +150 C window. For switching speeds above 100 MHz, account for the diode's junction capacitance when calculating expected rise times and feedthrough loss. This page synthesizes onsemi datasheet specifications, distributor availability, AEC-Q101 qualification context, and SOD-323 drop-in alternatives across onsemi, Nexperia, Diodes Incorporated, and Vishay - information not aggregated on any single distributor product page.
MMRF1006HR5 - 1000W 50V RF Power MOSFET 10-500 MHz | NXP
The NXP Semiconductors (formerly Freescale) MMRF1006HR5 is a 1000 W lateral N-channel broadband RF power MOSFET rated 50 V, designed for pulsed and continuous-wave (CW) wideband applications across 10-500 MHz. Housed in the NI-1230H-4S ceramic package, it is a common-source, dual-element, surface-mount silicon MOSFET intended for use as a final-stage or driver in communications, radar, and industrial RF power amplifiers. A power MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) is a voltage-controlled semiconductor switch that excels at high-current, high-frequency switching. RF power MOSFETs, like the MMRF1006HR5, are specifically engineered with lateral geometries to deliver high gain, high efficiency, and broadband operation in the high-frequency (HF), very-high-frequency (VHF), and ultra-high-frequency (UHF) bands. They sit at the top of the power management hierarchy alongside IGBTs and GaN HEMTs, but dominate pulsed/CW sub-gigahertz broadband amplifier designs due to their ruggedness, ease of impedance matching, and stable thermal performance. Key features include 1000 W typical output power, 50 V drain-source breakdown voltage, 20 dB typical power gain at 450 MHz, and broadband matching from 10-500 MHz. The device is enhancement-mode and is specified for both CW and pulse operation, giving RF designers a single part for diverse duty-cycle requirements. The unmatched input and output allow flexible matching-network design across multiple frequency bands. The MMRF1006HR5 uses NXP's high-voltage lateral MOSFET process, optimized for high peak-current handling and low parasitic capacitance. Its common-source dual-element topology enables push-pull or balanced amplifier configurations, while the rugged silicon die construction supports high VSWR (Voltage Standing Wave Ratio) load-mismatch tolerance - critical for radar and industrial heating applications where reflected power can damage lesser devices. Typical applications include broadband HF/VHF/UHF communications amplifiers, pulsed avionics and military radar transmitters, industrial RF heating and drying equipment (27 MHz, 40 MHz, 81.36 MHz ISM bands), and Class C/D/E CW amplifier stages. The combination of broadband response and high power makes it suitable as a driver for higher-power devices in multi-stage transmitter chains. Key design considerations include adequate thermal management via the metal-flanged NI-1230H ceramic package, careful board-level impedance matching for the broadband RF path, and consideration of the device's gate-drive requirements. Designers should also evaluate safe operating area (SOA) limits when operating at high VSWR. According to the NXP datasheet, the device is specified for operation at 50 V VDD with suitable heatsinking. This page synthesizes distributor pricing across DigiKey, Mouser, Octopart, Xecor, and Nantian, plus drop-in alternatives and practical RF amplifier design notes not found in the manufacturer datasheet.
MMRF1306HR5 - 1250W CW 50V LDMOS RF MOSFET 1.8-600 MHz | NXP
The NXP Semiconductors MMRF1306HR5 is a high-ruggedness N-channel enhancement-mode lateral RF power LDMOS transistor delivering 1250 W CW output power at 50 V from 1.8 MHz to 600 MHz, housed in the NI-1230H-4S ceramic/oligidair air-cavity package. An RF power LDMOS transistor is a laterally-diffused metal-oxide-semiconductor FET optimized for high-frequency, high-power amplification. It belongs to the hierarchy: RF power transistor -> RF power MOSFET -> LDMOS -> power semiconductor. LDMOS devices dominate commercial and defense RF power applications because they combine high gain, high drain breakdown, and excellent thermal stability in a single planar CMOS-compatible process, enabling broadband amplifier line-ups from HF through UHF. Key features include 1250 W typical CW output power, 24 dB power gain at 230 MHz, 65% typical drain efficiency, and unmatched input/output designs that allow wideband use without external matching networks. The device operates from a 50 V drain supply and integrates electrostatic discharge (ESD) protection plus high-VSWR ruggedness for harsh radar and broadcast environments. The MMRF1306HR5 uses NXP's high-ruggedness LDMOS process with a via-tunable lateral source structure and gold metallization for long-term thermal cycling reliability. The unmatched common-source configuration simplifies broadband amplifier PCB layout and supports both CW and pulsed waveforms. Internal matching is limited to the package parasitics, leaving frequency-band tuning to the external matching network on the amplifier evaluation board. Typical applications include HF/VHF radar transmitters, industrial scientific medical (ISM) band heating, low-band UHF broadcast amplification, plasma generation, and high-power communications line-ups from 1.8 to 600 MHz. The wide frequency coverage makes it a versatile building block for multi-band amplifier modules. When designing with this device, ensure the thermal interface compound and mounting torque follow the NXP application note recommendations for the NI-1230H-4S package, since the ceramic air-cavity flange is the primary heat path. The unmatched input/output requires per-band matching networks but allows a single part to cover multiple applications, reducing bill-of-material complexity. This page synthesizes NXP datasheet parameters, distributor pricing, drop-in same-package alternatives, and practical thermal and matching notes not all collected in the original manufacturer datasheet, providing an engineer-ready reference for amplifier design evaluation.
MPQ2222 - Quad NPN 40V 500mA Transistor Array | Central Semiconductor
The Central Semiconductor MPQ2222 is a quad NPN silicon transistor array containing four independent general-purpose NPN bipolar junction transistors (2N2222-type) mounted in a single 14-pin DIP (TO-116) through-hole package. Key ratings per transistor include 40 V collector-base/emitter voltage ratings, 500 mA continuous collector current, and 200 MHz transition frequency, with 650 mW total package power dissipation. A transistor array such as the MPQ2222 integrates multiple discrete BJTs into one package, sitting within the component hierarchy: NPN transistor -> bipolar junction transistor (BJT) -> transistor array -> discrete semiconductor. Arrays reduce board area, guarantee matched device characteristics from the same silicon lot, and simplify sourcing compared with four separate transistors, making them a staple of general-purpose amplifier and switching designs. The defining feature of the MPQ2222 family is true independence: all four transistors share no internal connections, so designers can freely parallel them for higher current, configure Darlington pairs, or use each device in a separate circuit section. The 200 MHz transition frequency supports RF-to-VHF small-signal amplification, while the 500 mA per-device current rating covers relay drivers, LED drivers, and medium-power switching nodes. The through-hole DIP-14 (TO-116) footprint is ideal for prototyping, breadboarding, repair, and legacy industrial equipment. Architecturally, the MPQ2222 uses diffused-junction NPN silicon planar construction identical to the industry-standard 2N2222 discrete device, so individual transistors behave exactly as a 2N2222 designer expects. The MPQ2222A suffix denotes the tighter 2N2222A-grade beta and leakage specifications. Typical applications include general-purpose amplifiers, low-side switch banks, relay and solenoid drivers, LED column drivers, oscillator and multivibrator circuits, and analog front-end gain stages in industrial and instrumentation equipment. Design consideration: total package dissipation of 650 mW is shared across all four devices; when paralleling transistors or running multiple hot devices, derate per the thermal resistance in the datasheet and verify junction temperature against the operating limit. This page adds value beyond the manufacturer datasheet by synthesizing distributor pricing, drop-in alternatives, pinout data, and practical design notes in one place.
MPQ2222-PBFREE - Quad NPN BJT Array 40V 500mA TO-116 | Central Semiconductor
The Central Semiconductor MPQ2222-PBFREE is a quad NPN bipolar junction transistor (BJT) array integrating four general-purpose 2N2222-type NPN transistors on a single die arrangement, rated 40V collector-emitter, 500mA collector current, 200MHz transition frequency and 650mW per package, housed in a 14-pin TO-116 through-hole plastic DIP package with lead-free, halogen-free PBFREE construction. A BJT transistor array is an integrated circuit that places multiple discrete transistors, matched in process and die temperature, into one package. Within the power-management and discrete-semiconductor hierarchy, the array sits between single transistors (2N2222A) and fully integrated driver ICs, offering tighter thermal tracking and board-area savings while retaining the full design flexibility of bare BJTs for amplifier and switch stages. Key features include four matched NPN transistors that replace four individual TO-92 2N2222 parts, a 200MHz fT that supports video-frequency and high-speed switching applications, and a 40V/500mA rating per element suitable for 24V industrial logic-level load switching. The PBFREE suffix guarantees lead-free RoHS-compatible construction for modern assembly processes without sacrificing the classic 2N2222A gain characteristics. Technically, the device uses monolithic silicon bipolar construction so all four transistors share nearly identical junction temperature, reducing thermal mismatch in current-mirror, differential-pair, and Darlington configurations. The through-hole TO-116 package offers robust mechanical mounting, easy prototyping on breadboards and 0.1-inch-pitch DIP footprints, and superior power dissipation compared with small SMD arrays. Typical applications include general-purpose amplifier stages, low-side switch banks for relays and LEDs, oscillator and multivibrator circuits, and industrial control signal conditioning where four matched NPN switches are needed on a single footprint. Design consideration: total package dissipation is 650mW, so derate per-transistor current when driving multiple elements simultaneously. This page synthesizes distributor pricing, drop-in alternatives, pinout and design guidance not found on distributor listing pages.
MPQ2222-TIN-LEAD - Quad NPN 40V 500mA BJT Array | Central Semiconductor
The Central Semiconductor MPQ2222-TIN-LEAD is a quad NPN silicon bipolar junction transistor (BJT) array housing four independent general-purpose NPN transistors in a 14-pin through-hole DIP (TO-116) package, rated 40V VCEO, 500mA collector current, 200MHz transition frequency, and 650mW power dissipation, with tin/lead plating. A transistor array such as this integrates multiple discrete BJTs on a single die within one package. In the component hierarchy, it belongs to: quad transistor array -> BJT transistor array -> bipolar transistor -> discrete semiconductor. Arrays reduce board area, part count, and placement cost compared with four individual 2N2222-type transistors, while guaranteeing matched electrical characteristics among the four elements. Key features include 60V VCBO collector-base breakdown, 5.0V VEBO emitter-base breakdown, four fully independent transistors for flexible circuit topologies, and a 200MHz ft that suits both amplifier and fast-switching duties. The through-hole DIP package simplifies prototyping, breadboarding, and rework on legacy industrial boards. Architecturally, the MPQ2222 is Central Semiconductor's drop-in continuation of the industry-standard Motorola MPQ2222 quad 2N2222-equivalent, preserving the classic pin configuration (collector Q1 on pin 1 through collector Q4 on pin 14) so existing PCB footprints remain valid. Devices are manufactured with EMC GREEN halogen-free molding compound and offered in both tin/lead and lead-free (PB FREE) plating options to support legacy-repair and RoHS-constrained designs respectively. Typical applications include general-purpose amplifier stages, low-side switching arrays, LED and relay drivers, pulse generators, and repair/maintenance of legacy industrial and test equipment that originally specified the Motorola MPQ2222. Design consideration: at the 500mA maximum collector current, ensure per-device power dissipation stays within the 650mW rating and provide adequate copper-free airflow for the DIP package. This page synthesizes verified distributor data, the manufacturer datasheet pinout, and drop-in alternative guidance not consolidated in the manufacturer datasheet.
MPQ2222A - Quad NPN 40V 500mA Transistor Array | Central Semiconductor
The Central Semiconductor MPQ2222A is a quad NPN silicon bipolar junction transistor (BJT) array containing four independent general-purpose NPN transistors matched to the 2N2222A specification, housed in a 14-pin through-hole DIP (TO-116) package. Each transistor is rated for 40V collector-emitter voltage (VCEO), 75V collector-base voltage (VCBO), 6.0V emitter-base voltage (VEBO), and 500mA continuous collector current, with 650mW power dissipation per package. A transistor array such as the MPQ2222A integrates multiple discrete BJTs into a single package, reducing board space, component count, and assembly cost. Arrays sit within the semiconductor hierarchy of discrete semiconductors -> bipolar transistors -> transistor arrays, and are a staple of through-hole general-purpose amplifier and switching designs. Key features include four electrically independent NPN transistors, guaranteed 2N2222A-equivalent parameters (a JEDEC-registered industry-standard transistor type), and a DIP-14 footprint compatible with standard 0.1-inch pitch prototyping boards and sockets. The PBFREE suffix indicates lead-free construction, and the through-hole package simplifies hand soldering, prototyping, and rework. Each transistor in the MPQ2222A shares the same silicon process, so matched electrical characteristics across the four devices improve thermal tracking in push-pull and differential configurations compared with four separate discrete transistors. The 200MHz transition frequency range typical of the 2N2222A class supports fast switching and RF applications up to the VHF region. Typical applications include general purpose amplifiers, logic-level switching, LED and relay drivers, and mixed-signal prototyping where multiple NPN transistors are required. Designers should note that total package dissipation is shared across all four devices, so per-transistor power must be budgeted accordingly. This page synthesizes distributor data, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
MRF1511NT1 - 8W 175MHz 7.5V RF LDMOS | NXP Semiconductors
The NXP Semiconductors MRF1511NT1 is an RF power field-effect transistor using N-channel enhancement-mode lateral MOSFET (LDMOS) technology, delivering 8 W of output power at 175 MHz from a 7.5 V supply with a typical gain of 13 dB in a surface-mount PLD-1.5 (PLD1.5N) ceramic package. It is rated for 150 mA DC operation with a maximum power dissipation of 62.5 W under absolute ratings and is designed primarily for large-signal, common-source amplifier service in portable FM equipment operating at frequencies up to 175 MHz. A radio-frequency power MOSFET is a discrete transistor optimized to deliver useful RF output power into a load (typically an antenna through an impedance-matching network) rather than to operate as a low-level analog switch. LDMOS in particular combines a lateral channel with a lightly-doped drain extension that supports high breakdown voltage and high drain efficiency on a single die, making it the dominant technology for sub-GHz broadband RF amplification. The MRF1511NT1 sits at the low-power end of NXP's LDMOS family, intended for handheld or portable radios rather than base-station PAs. Key features include a 7.5 V nominal drain supply, 13 dB typical power gain at 175 MHz, broadband response from VHF through 175 MHz, a high-gain lateral structure that simplifies driver-stage design, and a rugged surface-mount ceramic carrier (PLD-1.5) suited to reflow assembly. The device's lateral construction yields excellent thermal conductivity from die to package, and its broadband impedance profile allows the same device to cover multiple FM bands without re-matching. Architecturally the part is a single N-channel enhancement-mode LDMOS die mounted on a ceramic flange-less carrier. The lateral drift region shifts electric field away from the gate oxide, raising the avalanche breakdown rating for 7.5 V operation and improving resistance to load-mismatch stress. Drain efficiency at 7.5 V is intrinsically limited by the low supply rail, so the part trades efficiency for the convenience of running directly from a single lithium-ion cell. Typical applications include portable FM transmitters, low-power VHF amplifiers, two-way radio driver stages, RFID reader PAs at 134 kHz/13.56 MHz after matching, and broadband laboratory amplifiers. The 7.5 V rail is convenient for single-cell Li-ion (4.2 V max) plus a small boost converter. Thermal management requires attention because the 62.5 W absolute rating assumes a properly soldered thermal pad; in portable FM service the duty cycle is low, so smaller copper areas are usually sufficient. Designers should confirm impedance-match network design at the target frequency and provide adequate input decoupling; the EN/Enable function of an LDMOS is normally handled by gate-bias switching rather than a dedicated EN pin on this part.
MRF1513T1 - 3W 520MHz 12.5V RF Power MOSFET | NXP
The NXP MRF1513T1 is a 3 W, 520 MHz, 12.5 V lateral N-channel enhancement-mode broadband RF power MOSFET designed for high-gain, large-signal common-source amplifier applications. Housed in an over-molded plastic PLD-1.5 surface-mount package, the device delivers 15 dB typical power gain at 520 MHz from a 12.5 V supply while targeting portable 7.5 V and mobile 12.5 V FM equipment. An RF power MOSFET is a specialized metal-oxide-semiconductor field-effect transistor optimized for radio-frequency power amplification rather than switching. Within the transistor taxonomy, it sits above small-signal RF MOSFETs and below discrete RF LDMOS power transistors in the device hierarchy; it is part of the broader power management and RF amplifier ecosystem used in wireless transmitters. The lateral MOSFET architecture employed here trades absolute peak power for broadband matchability and ease of paralleling in push-pull stages. Key features of the MRF1513T1 include a 12.5 V typical drain operating voltage, 3 W output power at 520 MHz, 15 dB typical power gain, and 50 percent typical drain efficiency on NXP evaluation boards. The device is specified for broadband commercial and industrial service from VHF through low UHF, and the over-molded PLD-1.5 package eliminates flange-mount hardware while still providing a solderable thermal path to the PCB ground plane. The lateral DMOS-style construction with a diffused source provides excellent thermal stability under continuous-wave drive, and the part is characterized for both CW and FM modulated waveforms. Designers should note that the device is intended for class AB or class C biasing and is not characterized for linear modulation standards such as DVB-T or LTE; for those, consult NXP's higher-linearity MRF6-series LDMOS parts. Typical applications include 7.5 V handheld VHF/UHF transceivers, 12.5 V mobile FM land-mobile-radio power amplifiers, broadband driver stages for higher-power transmitters, industrial RF heating drivers, and commercial two-way radio final stages. The MRF1513T1 is commonly paired with driver-stage MRF134, MRF140, or MRF141 devices in cascaded amplifier chains. When designing with this part, ensure the PCB layout provides a continuous ground paddle beneath the PLD-1.5 package and that the input and output matching networks are realized with adequate 50 ohm microstrip launches. Designers should also derate output power above 70 degrees C case temperature to maintain long-term reliability. This page synthesizes the NXP datasheet MRF1513.pdf with current distributor stock and pricing, drop-in compatible alternatives in the same PLD-1.5 footprint, and practical RF layout notes not found in the manufacturer datasheet.
MRF1550NT1 - 50W 175MHz RF Power LDMOS FET TO-272-6 | NXP
The NXP Semiconductors MRF1550NT1 is a 50 W N-channel enhancement-mode lateral MOSFET designed for broadband commercial and industrial RF power applications up to 175 MHz at 12.5 V supply. Housed in a TO-272-6 (WARP, tape-and-reel) surface-mount package, it delivers 14.5 dB typical power gain and is engineered for large-signal common-source amplifier stages in 12.5 V mobile FM radio equipment. The lateral DMOS architecture combines the high gain of a bipolar transistor with the ruggedness of a vertical power MOSFET. RF power transistors are specialized semiconductors designed to amplify high-frequency signals at substantial power levels with high linearity and efficiency. Within the broader hierarchy, RF MOSFETs sit alongside RF bipolar junction transistors (BJTs) as the dominant active devices in sub-GHz and low-microwave transmitters, with lateral double-diffused MOS (LDMOS) being the modern industry-preferred technology for the 50 MHz to 3 GHz range due to its high gain, high breakdown voltage, and ease of broadband matching. Key specifications include 50 W continuous-wave output power at 175 MHz, 14.5 dB power gain, 50 V drain-source breakdown (typical test condition), 12.5 V nominal supply, and operation into a 50 ohm load. The N-channel enhancement-mode structure means the device is normally off at zero gate bias, simplifying bias-circuit design and reducing quiescent current draw when the PA is disabled. The lateral drain-source construction supports broadband performance across commercial FM, VHF land-mobile, and industrial-scientific-medical (ISM) bands. Designed around a common-source amplifier topology, the MRF1550NT1 needs minimal impedance-matching effort across its rated band. The exposed WARP flange provides a low-thermal-resistance path to the PCB or heatsink, enabling continuous 50 W operation without external isolation circuitry beyond the matching network. A monolithic silicon die reduces parasitic inductance compared to discrete multi-chip assemblies. Typical applications include 12.5 V mobile FM transmitters, VHF land-mobile-radio (LMR) power amplifiers, and broadband industrial RF generators in the 100-200 MHz range. The part is widely deployed in commercial two-way radio infrastructure, repeater stations, and base-station PA stages where 50 W CW at 175 MHz represents a sweet spot for coverage and reliability. When designing with this part, ensure the thermal pad is properly soldered to a copper heat-spreader with a minimum footprint that keeps junction temperature below 200 degrees C. Input and output matching should follow the datasheet evaluation-board reference design and must accommodate the device's internal matching for stability across the full operating band. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that are not consolidated in the manufacturer datasheet alone. Cross-references to MRF1550FNT1 and the legacy Freescale-branded variants are listed in the alternatives section so engineers can quickly validate end-of-life migration paths.
MRF1570FT1 - 70W, 470MHz, 12.5V RF Power MOSFET | NXP
The NXP (formerly Motorola/Freescale) MRF1570FT1 is a 70 W lateral N-channel enhancement-mode RF power MOSFET designed for broadband commercial and industrial applications with operating frequencies up to 470 MHz. Housed in a ceramic-air-cavity TO-272-8 (Epoxy-sealed) flange-mount package, it delivers 10 dB typical power gain at 470 MHz from a 12.5 V DC supply while sustaining 70 W of CW output power. The die is built on NXP's laterally-diffused metal-oxide-semiconductor (LDMOS) process optimized for high breakdown voltage and high gain-bandwidth product. A radio-frequency power MOSFET (RF MOSFET) is a discrete power transistor purpose-built to amplify high-frequency signals at the output stage of a transmitter. Within the broader semiconductor taxonomy, RF MOSFETs sit under power transistors, which sit under discrete semiconductors, which sit under active electronic parts. The lateral architecture used in the MRF1570FT1 keeps the source contact on the die top side, allowing the drain current to flow laterally and producing much higher input impedance and gain than vertical VDMOS devices of equivalent rating - a defining advantage for VHF/UHF amplifier designers. Key features include 70 W minimum CW output power at 470 MHz, 10 dB minimum power gain (with typical values of 12-14 dB), 70% typical drain efficiency, excellent broadband response from 1.5 to 470 MHz, and built-in ESD protection. The device also integrates a stable bias network and is rated for 12.5 V DC drain supply operation. These figures originate from the original Motorola/Freescale datasheet later re-issued by NXP after the MRF1500-series family transferred to NXP. The MRF1570FT1 employs a lateral MOSFET structure with a drain-to-source breakdown voltage rated above 36 V and a thermally enhanced ceramic flange-mount package that allows direct bolt-down to an aluminum heatsink or chassis. The robust die geometry supports broadband matching and survives 5:1 VSWR mismatch at rated output power - a critical reliability metric for mobile radio service where antenna faults are common. Typical applications include 12.5 V mobile FM land-mobile-radio amplifiers operating in the 450-470 MHz commercial band, public-safety and business-band repeaters, broadband laboratory amplifiers, and industrial RF heating drivers. The high gain-bandwidth product also makes the part suitable for prototyping common-source Class AB and Class C amplifiers. When designing with the MRF1570FT1, ensure the device is mounted on a flat, clean heatsink with proper RF grounding. Bias sequencing must gate the drain voltage after RF drive to prevent parametric oscillation, and the input matching network should be broadband-optimized to capitalize on the device's wideband capability. This page synthesizes verified distributor pricing, drop-in alternatives, and practical design notes for engineers evaluating the MRF1570FT1 for replacement or new amplifier builds.
MRF18030ALSR5 - 30W RF Power MOSFET 1.81-1.88GHz | NXP
The NXP MRF18030ALSR5 is a 30 W RF power MOSFET designed for high-performance wireless base-station amplifiers operating in the 1.81 GHz to 1.88 GHz DCS/PCS band, packaged in the NI-400S ceramic air-cavity flanged carrier. It operates from a 26 V drain supply and delivers 14 dB of small-signal gain at the rated output power. An RF power MOSFET (metal-oxide-semiconductor field-effect transistor) is a discrete transistor optimized for high-frequency, high-power amplification in the radio-frequency spectrum (typically 1 MHz to 6 GHz). It belongs to the broader hierarchy of discrete semiconductors -> transistors -> MOSFETs -> RF MOSFETs, and is purpose-built for use as the final or driver stage in base-station, broadcast, and industrial RF power amplifiers where conventional low-frequency MOSFETs would fail to deliver usable gain at microwave frequencies. The MRF18030ALSR5 features NXP's laterally-diffused metal-oxide-semiconductor (LDMOS) technology, which is the industry-standard device architecture for cellular base-station power amplifiers thanks to its excellent thermal stability, high gain, and broadband characteristics. Key differentiating specifications include 30 W CW output power, 14 dB gain, and operation across the full 1.81 GHz to 1.88 GHz DCS-1800/PCS-1900 transmit band. Its integrated ESD protection and wideband matching capability reduce the need for external protection circuitry. Architecturally, the device uses an enhanced-mode LDMOS FET with an internal input matching network and is designed for class-AB linear amplification. The flanged NI-400S air-cavity package provides a low thermal resistance path and is mechanically compatible with industry-standard RF power transistor mounting holes, allowing direct bolt-down assembly onto machined heatsinks. Per the manufacturer datasheet, the part is rated for 65 V maximum drain-source voltage and exhibits typical power-added efficiency in the 30-35% range at full output. Typical applications include DCS-1800 base-station final-stage power amplifiers, PCS-1900 cellular infrastructure drivers, and broadband RF power blocks in industrial scientific-medical (ISM) equipment operating in the adjacent 1.8 GHz spectrum. The wide frequency coverage makes it suitable as well for repeaters, microcells, and picocell radio units. When designing with this part, ensure the heatsink thermal design holds the flange temperature below the maximum rated value under worst-case load VSWR conditions. Adequate RF input and output matching networks are essential to realize the rated 14 dB gain and to maintain linearity in class-AB operation. This page consolidates distributor stock, parameter-level alternatives, and practical design notes so an RF design engineer can evaluate the MRF18030ALSR5 against drop-in substitutes before committing a PCB layout.
MRF18030BLSR3 - 30W 1930-1990 MHz RF Power MOSFET LDMOS | NXP
The NXP (formerly Freescale) MRF18030BLSR3 is a 30 W laterally-diffused metal-oxide-semiconductor (LDMOS) RF power field-effect transistor designed for GSM and GSM-EDGE base-station final-stage amplification in the 1930-1990 MHz band. Housed in the NI-400S ceramic surface-mount package (CASE 465E-04, Style 1), it operates from a 26 V DC supply, delivers 14 dB typical power gain at 2 GHz, and supports a frequency range from 1.8 GHz to 2 GHz per the manufacturer datasheet, with internal matching optimized for the targeted 1930-1990 MHz band. This part is the surface-mount (BLS) variant of the MRF18030 family and is intended for high-volume Doherty, microstrip, and PCB-based amplifier topologies. N-Channel Enhancement-Mode Lateral MOSFETs are a class of RF power transistors in which a laterally diffused channel under the gate oxide conducts between source and drain when a positive gate-source bias is applied. This architecture delivers high breakdown voltage, excellent thermal performance, and superior RF ruggedness versus bipolar alternatives, making LDMOS the dominant technology for cellular base-station power amplifiers from 700 MHz to 2.7 GHz. Key features include 30 W CW (or pulsed) output power capability at 1.93-1.99 GHz, 14 dB power gain at the design center frequency, 26 V drain supply operation, and an N-channel enhancement-mode gate that simplifies bias sequencing. The NI-400S ceramic package provides a low thermal resistance path from the die to the PCB or external heatsink, supporting 83.3 W absolute maximum power dissipation. The device is specified for GSM and GSM-EDGE waveforms and is suitable for FM, TDMA, CDMA, and multi-carrier amplifier applications where linearity and ruggedness are required. The MRF18030BLSR3 uses an enhancement-mode lateral MOSFET structure that requires a positive gate threshold (typically 2-3 V) and operates in Class AB for linear amplification or Class C for high-efficiency CW applications. Internal matching networks reduce external component count, and the high drain efficiency minimizes heat-sinking requirements in properly laid-out boards. The device is designed to withstand the high VSWR conditions typical of cellular base-station antennas. Typical applications include GSM and GSM-EDGE base-station final-stage power amplifiers, W-CDMA TV-spectrum amplification, multi-carrier amplifier modules, and infrastructure-grade RF power blocks operating in the 1930-1990 MHz TV band (DCS/PCS). It is also used in digital broadcasting transmitters and industrial RF heating systems where its 30 W class power level and frequency coverage are suitable. When designing with this device, careful attention must be paid to PCB thermal management; the NI-400S package requires a properly dimensioned copper footprint and, in many cases, an external heatsink to keep junction temperature within safe operating limits at full CW output power. Designers should also provide sufficient drain-supply decoupling and follow NXP's reference design for input/output matching network values to achieve the published 14 dB gain and efficiency figures.
MRF18060BLSR3 - 60W RF Power MOSFET 1930-1990 MHz | NXP
The NXP Semiconductors MRF18060BLSR3 is a 60 W lateral N-channel enhancement-mode RF power MOSFET designed for 1930-1990 MHz GSM base station applications, housed in an NI-780S ceramic surface-mount package (CASE 465-06, Style 1). It operates from a 26 V rail, delivers 60 W of CW output power with 13 dB typical gain, and is intended for PCN and PCS cellular infrastructure between 1800-2000 MHz. A lateral N-channel RF power MOSFET is a special class of power transistor fabricated using a lateral metal-oxide-semiconductor process rather than the vertical DMOS or GaN processes common at higher frequencies. Lateral MOSFETs provide an excellent balance of high gain, broadband flatness, and ruggedness for VHF through low-L-band operation, making them a long-standing reference design choice for cellular base-station power amplifiers. The MRF18060BLSR3 belongs to the RF power transistor family that sits beneath RF power amplifier modules and ultimately beneath the wireless base-station hierarchy: RF power MOSFET -> RF power transistor -> power semiconductor -> discrete semiconductor. Key features include 1930-1990 MHz operating range, 60 W CW output power at 26 V, 13 dB small-signal gain, and high efficiency suitable for GSM, TDMA, CDMA, and multi-carrier amplifier topologies. The NI-780S ceramic package offers stable thermal performance with a peak reflow temperature of 260 C and a maximum power dissipation rating of 180 W absolute, making it suitable for Class AB base-station PAs. The lateral MOSFET process provides inherent thermal stability and high breakdown voltage, while the broadband matching capability supports multi-carrier WLL applications. This transistor is specified for use in Class AB amplifier configurations for PCN/PCS cellular radio and WLL (Wireless Local Loop) infrastructure. When designing with this device, observe NXP's recommended gate bias sequencing (VGS applied before VDD) to prevent device damage, and pay close attention to the NI-780S landing pattern for thermal management. The NI-780S ceramic body requires careful PCB layout and a controlled thermal path to maintain junction temperature within safe limits.
MRF18085BLSR3 - 85W 26V 1.93-1.99GHz RF Power MOSFET | NXP
The NXP MRF18085BLSR3 is an 85 W, 26 V lateral N-channel enhancement-mode RF power MOSFET designed for GSM and GSM EDGE base station applications from 1930 to 1990 MHz. Housed in the NI-780 ceramic-metal hermetic package (CASE 465-06, STYLE 1), it is also suitable for TDMA, CDMA, and multicarrier amplifier applications. Key electrical parameters include 85 W output power, 26 V typical drain supply, ~273 W maximum dissipation capability, and operation across the 1930–1990 MHz band. An RF power MOSFET is a lateral metal-oxide-semiconductor field-effect transistor optimized for high-frequency, high-power operation. Compared with earlier bipolar RF transistors, lateral MOSFETs offer higher gain, better thermal stability, and easier broadband impedance matching. MRF18085BLSR3 belongs to the NXP (formerly Motorola/Freescale) RF MOSFET family aimed at cellular base-station power amplifiers, sitting within the broader hierarchy: RF power transistor → RF power MOSFET → base-station PA device → wireless infrastructure semiconductor. Differentiating features include high power density at 1.93–1.99 GHz, integrated ESD protection structure, gold metallization for high reliability, ceramic-metal hermetic NI-780 package for low thermal resistance, and a high breakdown voltage tolerant of 26 V supply operation. The lateral MOSFET architecture supports broadband matching and simplifies PCB-level amplifier design. Architecturally, the device uses a lateral N-channel enhancement-mode MOSFET structure with a gate length tuned for the 2 GHz cellular band. The ceramic NI-780 package provides a low-inductance, low-thermal-resistance path for high-power RF operation, while the metal-sealed cofired ceramic body offers hermeticity required for telecom-grade reliability. Typical applications include GSM/EDGE base-station power amplifiers at 1.93–1.99 GHz, TDMA and CDMA driver or final-stage amplifiers, multicarrier cellular amplifiers, and other wireless infrastructure RF power stages requiring high gain and high efficiency at UHF frequencies. When designing with the MRF18085BLSR3, ensure adequate RF heatsinking via the package flange and use proper low-loss matching networks with sufficient DC blocking on input and output. Pay close attention to device bias sequencing to avoid exceeding the maximum rated drain voltage. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, helping engineers evaluate availability, replacement options, and application fit for the MRF18085BLSR3.
MRF19045LSR5 - 9.5W RF Power MOSFET, 1930 MHz, NI-400S-240 | NXP
The NXP MRF19045LSR5 is a 9.5 W N-channel enhancement-mode lateral LDMOS RF power transistor designed for 1900 MHz to 2000 MHz base-station transmitter applications, housed in the NI-400S-240 ceramic-flanged package. It is specified at a test condition of 26 V drain bias with 550 mA quiescent current, delivering a minimum power gain of 14.5 dB at a typical operating frequency of 1.93 GHz. The device is intended for use in cellular PCN and PCS infrastructure in the 1930 MHz to 1990 MHz band. An LDMOS (Laterally Diffused Metal-Oxide-Semiconductor) RF power transistor is a specialized MOSFET architecture in which the drift region is laterally diffused to support high breakdown voltage, high RF output power, and excellent thermal performance in a single die. RF power transistors sit within the broader hierarchy of power management semiconductors, and LDMOS is the dominant technology in macro-cell base-station power amplifiers up to approximately 3.8 GHz thanks to its high gain, high efficiency, and stable long-term RF performance. Key specifications of the MRF19045LSR5 include a drain-source voltage rating of 65 V, an output power of 9.5 W at the rated test condition, 14.5 dB minimum gain, and operation across 1900 MHz to 2000 MHz. The lateral MOSFET structure provides high input impedance and ease of broadband matching, while the air-cavity ceramic NI-400S-240 package offers low thermal resistance suitable for continuous-wave (CW) and modulated RF operation. Typical applications for the MRF19045LSR5 include TDMA and CDMA driver or final-stage amplifiers in 1.9 GHz to 2.0 GHz base stations, multicarrier amplifier (MCPA) lineups, and PCS/PCN repeater systems. The part functions as a Class AB push-pull or single-ended gain block, biased from a 26 V to 28 V DC supply and matched externally with microstrip or lumped elements. When designing with this device, ensure the bias sequence supplies gate voltage before drain voltage, provides adequate heat-sinking through the flanged ceramic body, and confirms RF load-pull matching for the chosen modulation format. This page synthesizes distributor pricing, drop-in alternatives, and practical RF design notes not collected together in any single datasheet or catalog page.
MRF19085LR3 - 90W, 1930-1990 MHz RF Power LDMOS | NXP
The NXP MRF19085LR3 is a 90 W, 26 V lateral N-channel enhancement-mode RF power MOSFET designed for 1930-1990 MHz PCN/PCS base station applications. Housed in the NI-780H-2L ceramic package (CASE 465-06, STYLE 1), it delivers 13 dB gain, 18 W Pout (typical 2-carrier N-CDMA) with IDQ = 850 mA, and is rated for 65 V drain breakdown. This part is part of the well-established NXP/Freescale MRF19085 RF power MOSFET family used in cellular infrastructure worldwide. An RF power LDMOS transistor is a laterally-diffused MOSFET optimized for high-frequency, high-power amplification. Unlike small-signal MOSFETs, RF power LDMOS parts integrate a high breakdown drain region, low parasitic capacitances, and a thermally efficient ceramic/overmolded package to dissipate 100 W+ from a single die. They sit at the top of the RF amplifier hierarchy: RF amplifier -> power amplifier (PA) -> RF power transistor -> LDMOS. The MRF19085LR3 specifically targets the 1.93-1.99 GHz cellular band that became the foundation of 3G (UMTS/CDMA2000) base station PAs. Key features include 90 W Pout capability, 13 dB power gain at 1.93-1.99 GHz, 26 V nominal VDD operation, 850 mA quiescent current recommendation, and inherent robustness for multicarrier amplifier applications including TDMA, CDMA, and W-CDMA. The lateral N-channel structure also provides excellent linearity and high breakdown voltage headroom for OFDM waveforms. The device's lateral architecture uses an N-channel enhancement-mode LDMOS process with a drain-source breakdown of 65 V, providing comfortable headroom above the 26 V VDD rail. This makes it tolerant of VSWR mismatches typical at the antenna interface of base station PAs, where reflected power can momentarily double the drain voltage swing. Typical applications include 3G/UMTS macro-cell base station power amplifiers, PCS/Cellular band repeaters, multicarrier driver stages, and TD-SCDMA infrastructure. The wide bandwidth also accommodates commercial 2-carrier N-CDMA test conditions with adjacent-channel power ratio (ACPR) optimized for cellular mask compliance. When designing with the MRF19085LR3, the gate bias must be sequenced with the drain supply to prevent parametric shifts; IDQ should be set to 850 mA per the datasheet's N-CDMA test condition for optimal linearity. The exposed ceramic flange (NI-780H-2L) must be soldered to a copper heatsink with adequate thermal mass to keep Tj below 200 C at full Pout. This page consolidates distributor pricing, NI-780H-2L drop-in alternatives, and practical PA design notes that go beyond the manufacturer datasheet to help cellular-infrastructure engineers make sourcing and substitution decisions quickly.
MRF19125R5 - 24W RF Power LDMOS 1.93GHz NI-880 | NXP
The NXP (formerly Motorola/Freescale) MRF19125R5 is a 24 W RF power N-channel enhancement-mode lateral MOSFET (LDMOS) designed for use in the 1.93 GHz frequency band, housed in the NI-880 ceramic package. Built on NXP's sub-micron LDMOS process, the technology features 65 V drain voltage rating, 26 V typical operating test condition, 13.5 dB power gain, and 24 W output power in a single-ended configuration optimized for base-station amplifier stages. An RF power LDMOS transistor is a specialized power MOSFET built on a laterally diffused metal-oxide-silicon process that delivers high RF power with high gain and efficiency at microwave and UHF frequencies. It sits in the power transistor hierarchy as: LDMOS -> RF power transistor -> RF MOSFET -> discrete semiconductor -> power amplifier building block. LDMOS has become the dominant technology for cellular base-station power amplifiers because it offers an excellent trade-off between power density, linearity, gain, and cost at frequencies up to 3.8 GHz. Key features of the MRF19125R5 include 1.3 A quiescent/test current at 26 V, 65 V maximum drain-source voltage rating, integrated ESD protection, and NXP's Ni-880 ceramic flange package with low thermal resistance for high-power RF operation. The part is part of NXP's MRF19125 family targeted at 1.93 GHz industrial-scientific-medical (ISM) and PCS/DCS infrastructure amplifier designs where high gain and ruggedness are required. Architecturally, the device uses NXP's sub-micron LDMOS process, providing a high breakdown voltage that allows operation at 26-28 V while maintaining good linearity and high drain efficiency (typically 50%+ at P1dB). The NI-880 ceramic package offers a low Rth(j-c) thermal path, which is essential for dissipating the substantial heat generated in continuous-wave or high-duty-cycle base-station service. Typical applications include 1.93 GHz industrial-scientific-medical (ISM) band amplifiers, PCS/DCS base-station power amplifier driver stages, and military/aerospace RF amplification. The MRF19125R5 is a matched-device variant (R5 designation) tuned for use with NXP's reference amplifier circuits at the 1.93 GHz operating point. When designing with this device, ensure proper impedance matching at both input and output to achieve rated gain and efficiency, and provide adequate heatsinking via the ceramic flange mount. Bias sequencing should follow NXP's recommendations to avoid thermal runaway. This page synthesizes distributor stock data, parametric drop-in alternatives in the same NI-880 footprint, and practical design notes not found in the manufacturer datasheet alone.
MRF1K50HR5178 - 1500W RF LDMOS Transistor, 1.8-500 MHz, 50V | NXP
The NXP MRF1K50HR5178 is a high-ruggedness N-channel enhancement-mode lateral MOSFET designed as an RF power LDMOS transistor delivering 1500 W CW output power across the 1.8-500 MHz frequency range from a 50 V supply. Housed in the NI-1230H ceramic package, this transistor belongs to NXP's Airfast RF power family and is specifically engineered for harsh industrial, scientific, medical (ISM), broadcast, sub-GHz aerospace, and mobile radio applications. Key specifications include a 50 V drain-source voltage rating, typical CW output power of 1500 W at very high VSWR tolerance, and high gain across the entire 1.8-500 MHz band. An RF power LDMOS (Laterally Diffused Metal-Oxide Semiconductor) transistor is a specialized power MOSFET optimized for radio-frequency amplification. Compared to standard power MOSFETs, RF LDMOS devices are designed with low parasitic capacitance and high gain at RF frequencies, making them the dominant technology for high-power RF amplification in the HF, VHF, and UHF bands. LDMOS devices typically integrate electrostatic discharge (ESD) protection and are built on ceramic flanged packages for efficient thermal dissipation. The MRF1K50HR5178 is built to withstand severe mismatch conditions (high VSWR) without performance degradation, which is critical in industrial heating, plasma generation, and broadcast transmitter environments where load impedance can vary dramatically. Distinguishing features of the MRF1K50HR5178 include its very high VSWR ruggedness for industrial generator loads, a single-package CW solution at 1500 W, and an unmatched input/output design that allows broad frequency reuse from 1.8 MHz through 500 MHz. The ceramic NI-1230H package provides low thermal resistance for direct mounting to heatsinks or water-cooled cold plates, with the flange serving as the drain electrical connection. Typical applications span CW and pulsed industrial RF generators for plastic welding and plasma excitation, HF/VHF TV and radio broadcast transmitters, sub-GHz aerospace communication links, and mobile radio base station power amplifiers. The wide bandwidth also makes it well suited for particle accelerator drivers and scientific instrumentation. When designing with this part, ensure a sufficient 50 V DC supply and a low-impedance thermal mounting surface. Use NXP's reference PCB layout and matching network examples from the datasheet to achieve optimal efficiency and gain in the target band. Decoupling of the drain supply close to the package flange is critical for stable operation. The MRF1K50HR5178 is currently cataloged under Rochester Electronics for legacy Freescale/NXP inventory; refer to the original NXP datasheet for parametric limits. For applications demanding alternative frequencies or lower power levels within the Airfast family, designers should consult related Airfast datasheets. This page synthesizes real-time distributor pricing, parametric specifications, and practical design guidance for engineers integrating the MRF1K50HR5178 into RF power amplifier systems.
MRF21010LR1 - 10W, 28V RF Power MOSFET | NXP Semiconductors
The NXP Semiconductors MRF21010LR1 is a 10 W lateral N-channel enhancement-mode RF power MOSFET designed for W-CDMA base station applications in the 2110-2170 MHz band. Housed in the NI-360 ceramic package, this RF MOSFET delivers 13.5 dB typical power gain and is engineered for high linearity, multicarrier amplifier (MCPA) operation. The lateral device structure combines broadband performance with the ruggedness required for Class AB base-station power amplifiers. An RF power MOSFET is a specialized transistor optimized for radio-frequency amplification, sitting in the power-management hierarchy between small-signal RF FETs and conventional power MOSFETs. Lateral devices such as the MRF21010LR1 use a planar, laterally-diffused drain-source structure, which minimizes parasitic capacitances and enables operation well into the multi-GHz range, unlike vertical DMOS parts that are bandwidth-limited by output capacitance. In system terms, the MRF21010LR1 belongs to NXP's heritage Motorola RF MOSFET line, now a foundational part of the cellular-infrastructure power amplifier (PA) chain. Key specifications include a 28 V typical drain-source operating voltage, 10 W CW output power capability, and a 100 mA quiescent drain current at bias. The NI-360 ceramic package provides a low thermal resistance path to the system heat sink and supports the high peak junction temperatures encountered in W-CDMA bursts. Internal matching simplifies board-level integration into 50 Ω amplifier circuits. The part is fabricated on a high-voltage lateral MOSFET process, achieving simultaneously high breakdown, low feedback capacitance, and excellent intermodulation performance. Its broadband response also makes it suitable for FM, TDMA, CDMA, and multicarrier amplifier applications beyond pure W-CDMA. Typical applications include W-CDMA base-station power amplifiers, PCN/PCS/cellular radio front ends, WLL (wireless local loop) transmitter chains, and multicarrier driver stages. The same die is offered as MRF21010LSR1 in a different flange-mount variant for chassis-mount designs. When designing with the MRF21010LR1, ensure the 50 Ω input/output matching networks are realized on the lowest-loss substrate available (Rogers RO4003 or equivalent), and that the drain bias feed is well bypassed with a quarter-wave stub to suppress out-of-band gain peaking. This page synthesizes distributor pricing, drop-in alternatives, and practical RF design notes not found in the raw datasheet PDF, enabling rapid part evaluation for cellular PA and broadband driver designs.
MRF21030LR3 - 30W, 28V LDMOS RF MOSFET | NXP | 2.0-2.2 GHz
The NXP MRF21030LR3 is a 30 W, 28 V lateral N-channel enhancement-mode RF power MOSFET designed for PCN and PCS base-station applications across the 2000-2200 MHz band. Housed in the NI-400 ceramic package (CASE 465E-04, STYLE 1), the device delivers 13 dB typical power gain at 2.14 GHz with 30 W CW output, making it a workhorse driver/final stage for cellular-infrastructure amplifiers originally released by Motorola Semiconductor and now serviced through NXP's RF product line. An RF LDMOS (Laterally Diffused MOS) transistor is a specialized power MOSFET architecture optimized for high-frequency, high-power operation. Unlike conventional vertical MOSFETs, LDMOS places the drift region laterally under the gate, achieving low parasitic capacitance and high breakdown voltage in a single die. In the cellular base-station hierarchy, LDMOS parts bridge the gap between small-signal GaAs devices (used in receive paths) and GaN-on-SiC HEMTs (used in newer high-efficiency Doherty final stages), giving designers a mature, cost-effective path to 30 W Class-AB amplification. Key electrical features include 30 W typical output power at 1 dB compression, 13 dB power gain at 2.14 GHz, drain efficiency in the 50-55% range under multi-carrier W-CDMA drive, and 28 V nominal drain bias with 65 V maximum drain-source rating. Built-in ESD protection and a thermally enhanced ceramic NI-400 flange reduce reliability risk in fan-cooled or natural-convection base-station chassis. The part is characterized for Class-AB linear operation and has been used historically as both driver and final stage in 2 GHz WLL, PCS, and micro-cellular repeater designs. The MRF21030LR3 silicon uses NXP's third-generation LDMOS process with a gold metallization stack for extended MTBF at elevated junction temperatures. Internal gate-source Zener diodes provide ESD protection to 250 V HBM, eliminating the need for external protection circuitry in modular PA designs. The matched input and partial output matching required for the NI-400 footprint is documented in the NXP application note that accompanies the data sheet. Typical applications include W-CDMA/CDMA/TDMA driver and final amplifiers for 2.1 GHz band cellular base stations, multi-carrier power amplifiers for PCS microcells, WiMAX/WLL subscriber and base-station transmitters in the 2.0-2.2 GHz window, and Class-AB linear amplifiers for public-safety and amateur-radio links above 2 meters. The device remains a popular choice for legacy refreshes of existing Motorola-era hardware. When designing with this part, ensure the drain supply rail is well-decoupled with a 10 uF plus 100 nF ceramic combination and a 4:1 or higher impedance transformer ratio for the output match. Maintain case temperature below 200 C in continuous operation; the NI-400 flange should be bonded to a copper or aluminum heat spreader with thermal grease. Avoid exceeding the 65 V absolute maximum drain-source rating, which can be reached under load-mismatch (VSWR > 10:1) conditions if the circulator or isolator protection fails. This page synthesizes distributor pricing, drop-in alternatives from the MRF21010/21045/MRF5P21180 families, and practical thermal and PCB-layout design notes not found in the manufacturer datasheet alone.
MRF21030LR5 - 30W LDMOS RF MOSFET 2.14GHz PCN/PCS | NXP
The NXP MRF21030LR5 is a 30 W RF power N-channel enhancement-mode lateral MOSFET (LDMOS) designed for class AB linear amplification in PCN (Personal Communication Network) and PCS (Personal Communications Service) base-station transmitters, with operation from frequencies up to 2200 MHz and a factory-characterized test point of 2.14 GHz. Packaged in the NI-400 ceramic flange package with 28 V typical operating voltage, the device delivers 13 dB power gain at 250 mA quiescent bias and 250 mA bias current at 28 V test condition, making it a workhorse for cellular infrastructure during the GSM/EDGE/TDMA/CDMA era. An RF power LDMOS transistor is a specialized high-frequency power MOSFET fabricated using a laterally diffused metal-oxide-semiconductor process. Unlike small-signal RF MOSFETs used in low-noise amplifiers, RF power LDMOS devices combine high breakdown voltage, high gain, and excellent thermal performance on a ceramic flange substrate, enabling them to deliver tens of watts of continuous RF power with high linearity in base-station power amplifiers. The MRF21030LR5 sits in NXP's (formerly Freescale's) MRF21030L RF power transistor family as a single-ended device optimized for narrowband and multicarrier amplifier applications. Key electrical characteristics per the NXP datasheet include 13 dB minimum power gain at 2.14 GHz, 30 W typical output power, 65 V drain-source voltage rating, and 250 mA typical quiescent current at 28 V test. The lateral MOSFET structure provides inherent thermal stability and high ruggedness into VSWR mismatched loads. The LDMOS construction significantly reduces feedback capacitance (Cgd/Cds) compared to vertical MOSFETs, simplifying broadband matching network design for class AB linear amplifiers. Typical applications include 2G/3G cellular base-station power amplifiers (PCN/PCS bands), multicarrier amplifier linear drivers, FM broadcast transmitters, TDMA and CDMA driver/final stages, and general-purpose class AB RF amplification up to 2.2 GHz. The NI-400 ceramic flange package with its integrated mounting flange also supports tab-mounted heatsink attachment for high continuous-duty-cycle operation. When designing with the MRF21030LR5, observe the maximum drain voltage derating guidelines at elevated temperatures, provide a minimum PCB copper ground-pour area under the ceramic flange, and bias the gate with a regulated negative supply for accurate quiescent current setting. The matched input network shown in the NXP reference design reduces gain ripple across the 1.8-2.2 GHz operating band. This page synthesizes distributor pricing, same-package drop-in alternatives within the NXP MRF21030L family, and practical thermal/biasing design notes not consolidated in the manufacturer datasheet. Reference designators for matching networks follow the NXP evaluation board schematic.