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653 - Miniature Fuseholder Banana Plug Test Jack | Keystone
The Keystone Electronics 653 is a miniature banana plug test jack designed for thru-hole PCB mounting in test points, programming headers, and measurement access points. Housed in a single-pin thru-hole package with an overall height under typical Keystone 653-series dimensions, the device provides a reliable spring-loaded contact receptacle that accepts standard 0.166 in (4.22 mm) banana plugs and standard 0.080 in (2.03 mm) probe tips for in-circuit testing. A banana plug test jack, also called a banana jack or test jack, is a single-contact receptacle used to provide a convenient, reusable, non-permanent electrical connection point on a printed circuit board or chassis. It sits in the broader family of test points and PCB interconnect accessories (sub-category: connectors > board-to-board interconnects), and is engineered to accept banana-style plugs, oscilloscope probes, multimeter leads, and pin probes. The Keystone 653 is widely adopted as a programming header pin, debug access point, or ground reference in lab and production test fixtures. Key features include a current rating of 5 A, a contact resistance of 10 mOhm or less, and a dielectric withstand voltage of 2100 V DC per the Keystone datasheet. The body is insulated with a color-coded polycarbonate sleeve (standard color options include red and black), and the internal contact is beryllium-copper with gold or tin plating for low contact resistance and high-cycle life. The 653 accepts mating pins and banana plugs of 0.080 in (2.03 mm) diameter. The Keystone 653 is built around a single-piece stamped contact and molded insulator geometry, providing repeatable insertion force and reliable mating over thousands of cycles. The thru-hole termination accepts a standard 0.116 in (2.95 mm) PCB hole and is wave-solder compatible, making the part suitable for both hand-prototyping and high-volume SMT-adjacent production lines where test points are added post-reflow. Typical applications include oscilloscope probe ground posts on evaluation boards, programming/debug access headers on microcontroller boards, signal injection and measurement points on RF prototype boards, ATE fixture contact points, and educational lab trainers where students need to probe the circuit without soldering. When designing with the Keystone 653, observe the recommended PCB hole diameter and keep-out clearance around the body so the banana plug can fully engage without mechanical interference. Color-coding (red = positive, black = ground) reduces user error in production test fixtures. The Keystone 653 is not designed for permanent connection - repeated mating cycles and axial pull forces will eventually wear the contact.
6605454-1 - 1-Port RJ45 10/100 Base-T Magjack | Bel Fuse
The TRP Connector / Bel Fuse 6605454-1 is a single-port, through-hole RJ45 integrated magnetics connector (commonly known as a MagJack) supporting 10/100 Base-T Ethernet with AutoMDIX capability. It integrates the RJ45 jack, the 1:1 Ethernet isolation transformer, and the common-mode choke into a single right-angle PCB-mountable module, eliminating the need for discrete magnetics on the PHY side of an Ethernet design. The connector is part of the MAG45 product family and uses an 8-position, 8-contact (8P8C) contact layout. A MagJack is a type of modular connector that combines the mechanical RJ45 receptacle with the magnetic isolation required between the Ethernet PHY transceiver and the cable-side interface. By integrating the 1500 VAC isolation transformer and the common-mode filtering choke into the connector body, designers save PCB area, simplify the BOM, and gain a cleaner, more repeatable signal path. MagJacks sit in the connectivity hierarchy between standard RJ45 connectors (no magnetics) and full Ethernet front-end modules, and they are the de-facto solution for industrial, telecom, and embedded-networking equipment. The 6605454-1 is rated for 10/100 Mbps operation (Fast Ethernet), with through-hole right-angle (RA) PCB termination suitable for wave soldering and standard 2.54 mm pin pitch. Its integrated magnetics support AutoMDIX, meaning the PHY can automatically detect and correct TX/RX pair polarity, removing the need for crossover cables. Typical operating conditions include an extended industrial temperature range, making the part suitable for factory-floor equipment, outdoor enclosures, and ruggedized switches. Typical applications include industrial Ethernet switches, factory automation controllers, IP surveillance cameras, network interface cards, and serial-to-Ethernet gateways. The MAG45 footprint is widely supported across reference designs from leading Ethernet PHY manufacturers, which simplifies hardware bring-up and software driver integration. When laying out a board with the 6605454-1, follow standard Ethernet magnetics layout practices: keep the PHY-to-MagJack traces short and matched, use a 75 ohm differential impedance (USB/100Base-TX standard), and provide a chassis ground connection to the connector shield for ESD robustness. The integrated magnetics approach trades design flexibility for BOM simplicity and reduced EMI susceptibility. This page synthesizes distributor pricing, drop-in alternatives, and practical layout notes not found in the manufacturer datasheet, giving procurement and design engineers a single reference for sourcing and engineering decisions.
7289-7782-40 - 2-Pin 250 Series Automotive Connector | Yazaki
The Yazaki 7289-7782-40 is a 2-position (2P) 250 Series sealed automotive connector housing, configured as a CONN 2P 250 LT GRY (light grey) receptacle. This is part of Yazaki's widely deployed 250 Series sealed connector family used in automotive wire-to-wire and wire-to-board harnesses for body electronics, lighting, and sensor circuits. What is a sealed automotive connector? A sealed automotive connector is an environmentally protected electrical interconnect designed to withstand the harsh conditions found in road vehicles, including temperature extremes, vibration, moisture, dust, and chemical exposure. Sealed connectors use integrated grommets, terminal position assurance (TPA) locks, and wedgelocks to maintain IP67 or higher ingress protection ratings. The 250 Series sits within the broader automotive connector taxonomy (sealed connector -> wire-to-wire connector -> automotive interconnect -> electromechanical component), serving as a workhorse interface for low-to-mid current signal and power circuits up to roughly 20A depending on the terminal selected. Key features of the 7289-7782-40 include the 250 Series form factor, a 2-position cavity arrangement, light grey color coding for circuit identification, integrated latch and TPA locking geometry, and compatibility with Yazaki 250 Series sealed terminals. The housing accepts standard 250 Series female terminals (typically tin or gold plated, crimp termination), and pairs with the corresponding 250 Series plug housing. The light grey keying prevents mis-mating with connectors of the same series but different keying colors used elsewhere in the harness. Technical depth: the 250 Series connector system is engineered around a 9.5mm pitch cavity arrangement, with terminal cavities designed to accept Yazaki's 250 Series contacts that handle signal and low-current power up to the terminal's rated current. The connector housing is molded from high-temperature thermoplastics rated for under-hood and chassis environments, providing resistance to automotive fluids, ozone, and UV exposure. The mating interface includes a primary latch and secondary lock (TPA) for terminal retention under vibration. Typical applications include automotive interior and exterior lighting circuits, body control modules, sensor interconnects (temperature, pressure, position), seat and mirror harnesses, and chassis wiring where sealed environmental protection is required. The 250 Series is also deployed in commercial vehicle and off-highway equipment applications where automotive-grade reliability is required. When designing with this connector, verify terminal selection and wire gauge compatibility per the Yazaki 250 Series terminal specification. Ensure proper TPA engagement during assembly - incomplete TPA seating is a common cause of field failures. Confirm sealing plug usage in unused cavities for IP rating compliance. This page synthesizes distributor pricing, cross-reference alternatives, and practical harness-design guidance not found in any single distributor listing.
AFBR-2529RZ - 50MBd Versatile Link Fiber Optic Receiver | Broadcom
The Broadcom AFBR-2529RZ is a 50 MBd fiber optic receiver in the AFBR-2500 series Versatile Link (VL) family, designed for use with 1 mm Polymer Optical Fiber (POF) and 200 µm Hard Clad Silica (HCS) fiber. Packaged in a horizontal inverting conductive-housing module with 4-pin DIP-form connector interface, the part operates from a single 3.3 V (typical) supply and supports data rates from DC up to 50 MBd. A fiber optic receiver is an optoelectronic device that converts incoming light pulses transmitted through an optical fiber into a corresponding electrical signal. Receivers in the Versatile Link family sit in the broader hierarchy of fiber optic components, which also include transmitters, transceivers, and photo-diodes. They are widely used as the receiving end of short-reach, EMI-immune point-to-point links in industrial and automotive environments, where galvanic isolation and noise immunity outweigh the cost premium of optical cabling. Key features of the AFBR-2529RZ include an integrated PIN photodiode with internal transimpedance amplifier (TIA), TTL-compatible logic output, inverting output polarity (logic LOW when light is present), DC-coupled data path, and a conductive internal housing for EMI/RFI shielding. The receiver is rated for operation from 0 °C to +70 °C, supports link distances up to 50 m on POF (with 1 dB/m loss fiber) and longer on HCS, and ships in a RoHS-compliant Pb-free package qualified to Broadcom's industrial-grade reliability flow. Architecturally, the part uses a silicon PIN photodiode coupled to a bipolar transimpedance front-end, followed by a limiting amplifier that produces a clean TTL output swing on every received bit. An internal optical lens molded into the Versatile Link housing maximizes coupling efficiency and tolerates up to ±0.5 dB of mechanical misalignment with the mating AFBR-1529RZ transmitter or equivalent. Compared to discrete photodiode + op-amp designs, the AFBR-2529RZ integrates bias network, supply decoupling, and shield ground in a single connectorized module, simplifying PCB layout. Typical applications include industrial control busses (Profibus, DeviceNet, ASI), factory automation links, voltage-isolated data acquisition, gaming machines, and automotive infotainment or battery-management point-to-point links. Pairing the AFBR-2529RZ with the complementary AFBR-1529RZ transmitter forms a complete galvanically isolated optical data link without external components beyond a single bypass capacitor. When designing with this part, place a 0.1 µF ceramic bypass capacitor within 5 mm of the VCC pin and stitch the conductive housing shield to chassis ground through the locking connector tabs. The receiver's inverting output is intended for direct connection to a TTL/LVTTL input; an external Schmitt-trigger buffer is recommended if the receiving MCU is CMOS-only with a VCC > 3.3 V. Avoid routing the optical fiber through tight bends below the 25 mm minimum bend radius to prevent permanent attenuation damage. This page synthesizes distributor pricing, drop-in alternatives within the same Versatile Link housing, and practical design notes not found in the manufacturer datasheet alone, giving engineers a one-stop view of the AFBR-2529RZ's role, fits, and replacements.
B03B-PAEK(LF)(SN) - 3-Pin 2mm Through-Hole PA Header | JST
The JST B03B-PAEK(LF)(SN) is a 3-position, top-entry male pin header from JST's PA series, designed for through-hole wire-to-board interconnects at a 2.0 mm pitch. The connector carries a 3 A current rating, a 250 V voltage rating, and an operating temperature range of -25 C to +85 C, making it a practical choice for low-voltage signal and power distribution in commercial and industrial equipment. A board-to-board or wire-to-board header is a passive interconnect component that provides a separable, mechanically robust electrical path between a printed circuit board and an external cable, harness, or mating PCB. Headers sit within the broader category of rectangular connectors, which belong to the family of electromechanical interconnect products. The PA series from JST is widely used as a cost-effective, polarized, locking-rail solution where 2.00 mm pitch discrete-wire termination is required. Key differentiating features of the B03B-PAEK(LF)(SN) include a glass-fiber reinforced PBT insulator rated UL94V-0, copper-alloy contacts with a tin (Sn) plating finish, and a polarized housing with a friction lock ramp that mates with the corresponding PAP-series crimp housing. The through-hole K-pin tail geometry, combined with a 5.3 mm profile and 8 mm overall length, supports wave-solder assembly while leaving room for standard cable-side mating clearance. From an engineering standpoint, the PA series uses a single-row contact arrangement with 2.00 mm pitch, which is a widely accepted open-industry footprint. Tin-plated copper-alloy contacts provide low contact resistance for sub-3 A signal and low-power distribution; for harsher environments, JST offers gold-plated variants within the same mechanical envelope. Typical applications: internal wiring harnesses for consumer electronics, low-current power distribution boards, signal header interfaces on industrial controllers, sensor break-out boards, and prototyping/DIY electronics that use the popular JST-PH-equivalent footprint family. Design tip: Always mate the B03B-PAEK(LF)(SN) with the correct PA-series female housing (e.g., PAP-03V-S) and AWG 28-22 crimp contacts; mismatched series will not latch and may damage the locking ramp. This page consolidates distributor pricing, drop-in alternative headers, and selection notes beyond what is summarized in the JST catalog datasheet, supporting faster engineering decisions.
CJ2602-000 - Circular MIL Backshell Heat-Shrink Adapter | TE Connectivity
The TE Connectivity CJ2602-000 is a circular military-specification heat-shrink backshell adapter designed to provide environmental sealing and strain relief on size-9A MIL-DTL-38999 Series III/IV connectors. It belongs to the Raychem TXR series of heat-shrinkable boot adapters, threaded onto the rear of the connector and terminated with a polyolefin shrink boot that seals the cable jacket. The part ships unassembled and is field-installed with a standard heat-gun ramp. A connector backshell is a mechanical accessory that mounts behind a circular or rectangular connector body to provide cable support, environmental sealing, EMI shielding, or strain relief. Backshells sit in the interconnect accessory hierarchy above cable clamps and below connector housings; this type is a heat-shrink adapter, meaning the boot is molded onto the cable jacket thermally rather than crimped or potted. The CJ2602-000 combines a machined aluminum adapter body (olive-drab cadmium over electroless nickel is the standard Raychem finish) with a Raychem ATUM or similar polyolefin shrink sleeve. Key features include an M12x1 thread for engagement to size-9A shell, anti-decoupling mechanism (self-locking per the TXR40SJ00-0806BI specification), compatibility with -55C to +200C operating temperature, and 360-degree shield termination via the boot. The strain-relief geometry reduces cable-axial load on the solder or crimp contacts inside the connector by an order of magnitude when properly heat-shrunk. The technical architecture relies on TE Connectivity's qualified Raychem molding compound formulation, qualified to the relevant sections of MIL-PRF-85049 and AS85049 for environmental backshells. The component carries TE's TXR40SJ00-0806BI internal specification and ships with full traceability paperwork. The thread coupling torque is typically 8-12 N·m depending on shell size and material. Typical applications include military tactical radios, avionics LRUs (line-replaceable units), naval combat-system electronics, ground-vehicle vetronics, and industrial-grade sealed sensor harnesses where the cable must survive flexure, fluid immersion, or sand/dust ingress. CJ2602-000 is regularly specified on platforms such as the Raytheon AN/PRC-155 and other US/Joint-Service programs. When designing-in CJ2602-000, verify cable-jacket outer diameter matches the supplied shrink-boot range; also confirm the connector shell is size 9A per MIL-DTL-38999 before installation. Failure to respect the heat-gun shrink temperature (typically 110C minimum recovery) will produce a defective seal.
D38999/32Z19N - MIL-DTL-38999 Series III Plug Dust Cap | Size 19 | Black Zinc-Nickel
The D38999/32Z19N is a MIL-DTL-38999 Series III protective plug dust cap (also called a connector cover or protective cap) designed for shell size 19 plugs with black zinc-nickel finish, manufactured as a QPL accessory by multiple qualified vendors including Glenair, Amphenol PCD, and TE Connectivity / DEUTSCH. It is part of the /32 (plug cover) accessory family per MIL-DTL-38999 and is used to protect unmated plug pins from dust, moisture, mechanical damage, and EMI exposure in aerospace, defense, and industrial applications. A MIL-DTL-38999 protective cap is a mechanical accessory designed to mate with the connector shell threads of MIL-DTL-38999 Series I, II, III, or IV plugs or receptacles. These caps are mandatory for any deployed military connector system because exposed pin fields and threaded coupling surfaces are vulnerable to contamination that can degrade electrical performance, cause intermittent failures, or prevent proper mating in the field. The D38999/32Z designation specifically targets plug (not receptacle) connectors and mates with the threaded plug shell using the same triple-start self-locking coupling threads as the main connector. Key features include shell size 19 compatibility, black zinc-nickel plating per MIL-DTL-38999 (corrosion resistant, conductive for EMI grounding, RoHS compliant over older cadmium options), and a lanyard or chain retention option for captive attachment to the host cable assembly. The dust cap typically includes a rubber sealing gasket or O-ring rated for IP67/IP68 environmental sealing when properly installed. Operating temperature range typically spans -65C to +200C with chemical resistance to common aerospace solvents, fuels, and hydraulic fluids. The D38999/32Z19N uses standardized MIL-DTL-38999 Series III mating interface geometry, meaning the cap is form-fit-function compatible with any QPL-qualified Series III plug connector of shell size 19. This includes insert arrangements ranging from 11 to 32 contacts depending on contact density. The cap threads match the plug's triple-start coupling threads, providing a positive mechanical lock and environmental seal identical to the main connector mating interface. Typical applications include military ground vehicles (radios, navigation, ECU harnesses), aerospace avionics (flight control, communication, navigation bays), naval shipboard electronics (sonar, radar, fire control), and ruggedized industrial machinery (downhole oil/gas, mining, rail). In all of these, the cap protects the connector during shipping, storage, transit between operational sites, and periods of disconnection in the field. When selecting a D38999/32Z19N cap, verify the host connector is Series III shell size 19 with the correct thread type (standard or metric, although military applications use imperial). The cap does not need to match the insert arrangement, only the shell size and Series designation. For Series I or Series II plugs, the equivalent part numbers are D38999/32 (Series I) and a different Series II part number, both cross-referenced in the MIL-DTL specification cross-reference PDF. This page synthesizes cross-vendor availability, MIL-spec background, and practical selection guidance not consolidated in any single distributor listing, including same-vendor QPL alternatives and competitor equivalents qualified to the same MIL-DTL-38999 specification.
DC - DC Connector Barrel Jack | AG Electronica
The AG Electronica DC-005 is a 2.1 mm through-hole DC power connector barrel jack widely used as a low-cost, panel-mountable power inlet on consumer electronics, hobbyist boards, and embedded modules. It accepts a 2.1 x 5.5 mm barrel plug and supports up to 24 VDC at 3 A continuous current with a typical contact resistance under 30 mOhm. A DC barrel connector is a standardized coaxial power inlet that mates with a male DC plug carrying center-positive or center-negative polarity. The DC-005 follows the EIA/JEDEC-conventional 2.1 mm inner pin / 5.5 mm outer sleeve geometry, the de-facto pinout used by legacy wall adapters. This category includes through-hole, surface-mount, mid-mount and panel-mount variants, locking and non-locking versions, and a range of pin diameters (1.3, 1.65, 2.1, 2.5 mm). Each variant is keyed by inner diameter so that power adapters cannot accidentally cross-mate between incompatible voltage rails - the industry standard remains 2.1 x 5.5 mm for 12-24 V adapters and 2.5 x 5.5 mm for higher-current laptop supplies. The DC-005 exposes three through-hole pins: a tip contact (the spring-loaded sleeve), a sleeve contact (the inner pin), and a mechanical mounting pin tied to chassis ground. Its current rating is derived from the silver-plated copper alloy contact system and a 5,000-cycle mating durability rating, sufficient for the typical 3-5 year service life of a wall-powered consumer product. In circuit terms, this part is a passive mechanical-electrical interconnect - it has no active silicon, no SOA, and no logic. Its signal integrity is characterized solely by contact resistance and insertion force. Engineers select it for its sub-100-cent cost, its compatibility with universal AC adapters, and its ability to be wave-soldered alongside through-hole components on small-batch production lines. Typical applications include Arduino/Raspberry Pi power input, 3D-printer 24 V supplies, audio amplifier 12-24 V rails, CCTV camera feeds, and IoT gateway mains adapters. The 24 V / 3 A rating comfortably drives 60-70 W of downstream load through the connector before derating. When designing with this connector, reserve at least 10 mm of PCB keep-out around the barrel opening to allow plug insertion clearance, and add a TVS diode across the input to clamp inductive adapter transients at the connector pins. This page synthesizes the AG Electronica DC-005 datasheet specification with cross-references to the broader DC-005 family and competitive offerings, plus practical PCB-layout notes not found in the manufacturer datasheet alone.
DF22R-3P-7.92DSA(05) - 3-Pin 7.92mm 30A Power Header | Hirose
The Hirose DF22R-3P-7.92DSA(05) is a 3-position through-hole vertical header from the DF22R series of 7.92 mm pitch high-current connectors designed for internal power supplies. It carries up to 30 A per contact, supports 600 V AC/DC, and uses a positive locking mechanism plus mechanical keying to prevent incorrect mating when multiple identical-position connectors coexist on a single board. A power-to-board header is a board-mounted male contact strip that mates with a wire-side crimp socket (DF22RC series) to bring power into or between PCBs. As a member of the high-current rectangular connector family, the DF22R sits in the hierarchy board-to-board connector -> rectangular power connector -> high-current header -> through-hole vertical header. It bridges upstream bulk DC rails (24 V bus, 48 V telecom, battery stacks) to downstream point-of-load converters and DC-DC bricks inside industrial, robotics, and telecom equipment. Key features of the DF22R-3P-7.92DSA(05) include a 7.92 mm contact pitch (the widest in the DF22 family for high-current applications), UL/C-UL and TUV safety certifications, and a robust halogen-free resin housing rated for -55 C to +85 C operation. The vertical through-hole mount orientation simplifies PCB routing for stacked board-to-board power delivery where a right-angle exit is not viable. Architecturally, the header uses thick copper-alloy pins with tin plating for low contact resistance and high current density. The 7.92 mm pitch provides the creepage and clearance required by IEC 60950 / IEC 62368 for primary-side power circuits, while the positive lock delivers audible mating feedback and prevents vibration-induced disconnection in industrial environments. Typical applications include industrial automation controllers, programmable logic controller (PLC) power inputs, servo drive bus rails, telecom base-station 48 V distribution, and uninterruptible power supply (UPS) battery interconnects. The wide pitch also suits EV charging station auxiliary power, where isolation and mechanical robustness are essential. When designing with this header, derate the 30 A rating to roughly 24 A continuous per pin at industrial ambient (typically 70 C) and provide adequate copper pad area for thermal relief. Always use the matched DF22RC-3S-7.92C receptacle and the recommended crimp contacts to maintain the rated current and the UL/TUV approvals. This page synthesises distributor pricing, same-brand and cross-brand drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
DF5A-6DP-5DSA - 5mm Pitch 6-Pin Dual Row Through-Hole Header | Hirose
The Hirose DF5A-6DP-5DSA is a 6-position (2 rows × 3 contacts) through-hole male pin header from the Hirose DF5 series, designed as a miniature potting connector for secondary power supply applications. It uses a 5.0 mm pitch contact geometry and stands 22.5 mm above the PCB mounting surface, with a maximum potting allowance of 9 mm, making it suitable for encapsulated power modules. The header accepts the DF5 series crimp socket housings and is supplied in straight (vertical) orientation with a tin-plated contact finish. A pin header is a single-row or multi-row array of male contacts pressed or soldered through a printed circuit board, providing a polarized, removable mating interface for wire-to-board and board-to-board power or signal connections. Within the broader interconnect hierarchy, pin headers sit under rectangular board connectors (Headers, Male Pins), which in turn belong to the wire-to-board connector family used throughout power management, industrial control, and appliance electronics. Pin headers are the lowest-cost method to bring power rails or low-speed signals off a sealed PCB, and the potting-friendly DF5 series specifically targets encapsulated power supplies and motor-drive modules. Key features include a 5.0 mm contact pitch, 6 contacts arranged in two rows of three, tin-plated brass contacts for solderability and corrosion resistance, and a glass-fiber reinforced thermoplastic insulator rated for reflow soldering and potting compound exposure. The mating interface accepts standard DF5 series receptacle housings with crimp-terminated discrete wire or ribbon cable. The connector is rated for up to 8 A per circuit at 500 V AC/DC depending on wire gauge. The DF5A-6DP-5DSA uses a polarized housing with positive locking latches that engage with the corresponding crimp socket housing. The 5 mm pitch is larger than signal-density headers (typically 2.54 mm), making this part optimized for power applications where creepage, clearance, and current-carrying capacity take priority over contact density. The straight-through mount orientation enables wave soldering during PCB assembly. Typical applications include secondary-side power supplies in industrial equipment, encapsulated power modules, HVAC control boards, appliance motor controllers, and LED lighting drivers. The 5 mm geometry also suits battery management wiring harnesses where larger gauge conductors (AWG 18 to AWG 22) are used for current-carrying capability rather than fine-pitch signal routing. When designing with this part, ensure the PCB through-hole pad diameter matches the 1.5 mm nominal pin diameter, maintain 22.5 mm clearance above the board for mating receptacle engagement, and confirm the maximum potting compound depth (9 mm) is not exceeded when the header is potted inside an enclosure. This page synthesizes Hirose catalog specifications, distributor pricing and stock from DigiKey and Mouser, drop-in alternative connectors, and PCB layout guidance that is not consolidated in the standalone manufacturer datasheet.
FTSH-105-01-L-DV-K-A-TR - 10-Pin SMT Micro Header Strip | Samtec
The Samtec FTSH-105-01-L-DV-K-A-TR is a 10-position (2 rows x 5 pins) surface-mount micro header strip on a 0.050 in (1.27 mm) pitch, part of Samtec's high-reliability FTSH series. The part features a vertical orientation, a 10 microin (0.25 um) gold contact mating surface with tin-lead (Pb) terminations, a 0.120 in (3.05 mm) post length, and a keying notch on the A side. It is supplied in Tape and Reel (TR) packaging and is designed for high mating-cycle applications where polarized, keyed board-to-board interconnects are required. A board-to-board header strip is a surface-mount electromechanical interconnect that provides a detachable, multi-position link between a daughter card and a host PCB. It sits within the broader family of pin headers, which are organized into unshrouded (breakaway) and shrouded (shrouded/boxed) variants. FTSH parts are unshrouded and rely on a keying notch rather than a plastic shroud to prevent mis-mating. Within Samtec's catalog the FTSH series sits above lower-cost breakaway headers and below fully shrouded, locking Tiger Eye or QTE/QSE interfaces, placing it in the mid-tier for moderate reliability and signal integrity. Key features of the FTSH-105-01-L-DV-K-A-TR include a liquid crystal polymer (LCP) insulator rated for reflow soldering up to 260 C in accordance with JEDEC J-STD-020, phosphor-bronze contact springs for stable contact force, and the '-K-A' polarization key that orients mating halves relative to pin A1. Operating temperature spans -55 C to +125 C. The TR suffix denotes Tape and Reel packaging compatible with automated pick-and-place assembly. The 'e3' termination finish designation refers to a tin (Sn) finish with a nickel underplate; this variant retains a lead-containing contact plating consistent with the legacy '-L' coding. Typical applications include FPGA and MCU debug/JTAG headers, signal break-out boards, mezzanine-to-board interconnects for industrial controllers, test and programming fixtures, and routing for differential low-speed signal buses such as SPI, I2C, and GPIO banks. Designers select this footprint when board real estate is constrained and a vertical, shrouded-or-keyed interface is not required. When comparing drop-in alternatives note that all variants in the FTSH-105-01 family share the same 1.27 mm pitch, 10-pin count, and insulator body - only the plating (L), keying position (K-A), and packaging (TR or tube) change. Design considerations include ensuring pad geometry matches the recommended land pattern in the Samtec FTSH datasheet, providing adequate keep-out for the post tails to avoid solder wicking, and confirming that mating socket housings such as CLP or FLE series are specified for the same polar-key orientation. This page synthesizes distributor pricing and drop-in alternatives from DigiKey, Mouser, and LCSC that are not consolidated on the manufacturer datasheet.
FX18-60P-0.8SV - 60-Pin 0.8mm Pitch Board-to-Board Header | Hirose
The Hirose FX18-60P-0.8SV is a 60-position vertical surface-mount board-to-board header from the FX18 Series, featuring an outer shroud contact configuration with a 0.8 mm pitch and rated for high-speed transmission up to 10 Gbps. The connector is designed for vertical coplanar or mezzanine PCB mating and supports multi-functional (MF) contacts that combine signal, ground, and power (up to 12 A) functions in a single compact housing, making it suitable for compact backplane and embedded computing applications. The outer shroud provides mechanical alignment and EMI containment for high-density signal routing. A Board-to-Board (B2B) connector is a type of interconnect that joins two printed circuit boards electrically and mechanically, either in a stacked (mezzanine), coplanar, or right-angle configuration. The FX18 Series sits within the family hierarchy of mezzanine connector -> board-to-board connector -> rectangular connector -> electronic interconnect, and is engineered specifically for high-speed digital signaling required by modern serial bus standards. Within the broader connector ecosystem, B2B headers like the FX18 are classified as plug-side components, paired with FX18 receptacle (socket) counterparts of the same pin count and pitch. Key features include 60 contacts on a 0.8 mm pitch, a rated current up to 12 A on power contacts, gold contact plating for low contact resistance, surface-mount termination with retention features, and support for 3-step sequential mating. The FX18 Series supports data rates up to 10 Gbps, enabling compatibility with standards such as PCI Express, SATA, and high-speed LVDS. Operating temperature ranges of up to 125 C with heat-resistant options are available for thermally demanding enclosures. The connector uses a precision-stamped contact design with optimized contact geometry to maintain signal integrity at multi-gigabit speeds, and it is supplied in tape-and-reel packaging compatible with automated SMT placement. The vertical orientation and outer shroud layout facilitate dense routing on stacked or coplanar PCB assemblies, particularly where conventional headers cannot accommodate the required pin count within the available board real estate. Typical applications include Open Pluggable Specification (OPS 2.0) digital signage modules, server backplanes, industrial control boards, embedded computing platforms, and test-and-measurement instrumentation where high-density, high-speed interconnects are required. The 0.8 mm pitch enables fine-pitch routing while the multi-functional contacts reduce the total pin count required for power distribution. When designing with this connector, verify the mating receptacle (FX18-60S-0.8SV family) for pin compatibility and ensure PCB land patterns match the Hirose-recommended footprint. Use the manufacturer's recommended PCB keep-out and pick-and-place footprints for reliable automated assembly. This page synthesizes distributor pricing, drop-in variants within the Hirose FX18 family, and practical design notes not aggregated in a single manufacturer datasheet.
HB30C4AFPD - 4-Port USB 5Gbps Hub with 60W PD | StarTech
The StarTech HB30C4AFPD is a 4-port USB 3.2 Gen 1 hub with 5 Gbps SuperSpeed data throughput and 60W USB Power Delivery passthrough charging, housed in a compact enclosure with an integrated USB-C host cable terminating in four USB Type-A ports. A USB hub is a connectivity device that expands a single USB host port into multiple downstream ports, sitting within the broader hierarchy of USB peripherals that includes docking stations, port replicators, and USB controllers. Hubs buffer and repeat USB transaction traffic between the host and attached devices, and USB 3.x hubs route SuperSpeed and high-speed traffic on separate bus segments for parallel operation. Key features of the HB30C4AFPD include four downstream USB Type-A ports operating at USB 3.0 SuperSpeed 5 Gbps, 60W USB PD passthrough charging that lets the host laptop power and charge through the same USB-C connection, and a small-footprint portable design with integrated cable. The passthrough architecture means users do not sacrifice the laptop's only USB-C port when adding USB-A peripherals. Technically, the device operates as a USB 3.2 Gen 1 hub controller bridging the USB-C host receptacle interface to the four USB-A downstream ports. The 60W power delivery path is separated from the 5 Gbps data path, so charging continues at high wattage while data traffic flows simultaneously. This suits users connecting keyboards, mice, flash drives, external SSDs, and cameras. Typical applications include expanding connectivity on modern MacBook, Dell, and other ultrabook laptops whose USB-C-only chassis lack USB-A ports, field and mobile workstations, and office hot-desk setups. Design consideration: total available data bandwidth is shared across all four downstream ports at the 5 Gbps hub limit, so aggregate throughput of simultaneously active high-bandwidth devices is bounded by the single upstream link. This page synthesizes distributor pricing availability from Mouser, DigiKey, Newark, and Octopart, alternative StarTech hub variants, and practical usage guidance not consolidated in the manufacturer datasheet.
PE33448-36 - 75 Ohm BNC-BNC RG-6 36" Cable | Pasternack
The Pasternack PE33448-36 is a 75 Ohm coaxial cable assembly featuring BNC female connectors on both ends, built with RG-6 cable and supplied at a 36.00 inch (914.40 mm) length. It is designed for video, broadcast, and RF signal routing applications where a reliable BNC-to-BNC interconnect is required. The assembly uses the industry-standard RG-6 coaxial medium with a 75 Ohm characteristic impedance optimized for video distribution, SDI transport, and broadband RF signaling. A coaxial cable assembly is a pre-terminated length of coaxial transmission line with connectors attached to one or both ends, used to carry RF or baseband signals between equipment while maintaining controlled characteristic impedance. Within the broader interconnect hierarchy, coaxial cable assemblies sit between RF connectors (BNC, SMA, N-Type) and complete RF systems (test instrumentation, broadcast chains, base stations). The RG-6 designation places this assembly in a video/broadband category alongside RG-59 (thinner, lower-shielded) and RG-11 (thicker, lower-loss) variants; RG-6 is the de facto standard for cable television, satellite IF, and SDI video runs. Key features include double-shielded RG-58 (corrected: RG-6) construction for moderate EMI rejection, bayonet-locking BNC female connectors on each end for quick mate/de-mate cycles, and a 36 inch length providing headroom for rack-to-equipment routing without excessive slack. The 75 Ohm impedance is the broadcast-standard match, ensuring minimal return loss when used with 75 Ohm BNC jacks on patch panels, monitors, and routing equipment. Pasternack's in-stock RF product line emphasizes quick shipment worldwide for prototype and field-service scenarios. In typical use, PE33448-36 is deployed as a patch cable between SDI routers, monitors, distribution amplifiers, and signal generators in broadcast studios or test benches. Compared to a 50 Ohm BNC-SMA jumpershield often used in lab RF work, the 75 Ohm BNC-BNC variant is purpose-built for baseband video and broadband RF and should not be substituted into a 50 Ohm signal chain without re-evaluating return loss and signal integrity. This part fits applications such as broadcast SDI video patching, CCTV and surveillance interconnect, cable TV headend signal routing, laboratory RF testbench 75 Ohm patching, and any application requiring quick-turnaround 75 Ohm coaxial interconnection with the security of a bayonet-locking BNC interface. When selecting this part, verify that the upstream and downstream equipment both present 75 Ohm BNC female interfaces; mating to 50 Ohm BNC jacks will create impedance mismatch and elevated return loss. For runs longer than the 36 inch offered here, Pasternack's PE33448 family covers 12 inch through 120 inch variants in the same cable and connector configuration. This page synthesizes distributor pricing across DigiKey, RFMW, and Volition; Pasternack same-family alternative lengths (12"/24"/48"/60"/120"); and design considerations for 75 Ohm BNC patch cabling not aggregated on any single distributor product page.
ST3300GU3B - 3-Port USB 3.0 Hub + Gigabit Ethernet | StarTech
The StarTech.com ST3300GU3B is a TAA-compliant portable 3-port USB 3.2 Gen 1 (USB 3.0) hub with an integrated Gigabit Ethernet adapter, housed in a compact aluminum enclosure with a built-in captive USB cable. It adds three external 5 Gbps USB-A ports plus one RJ45 Gigabit network port to a laptop or Ultrabook through a single upstream USB 3.2 Gen 1 connection. A USB hub is a bus-powered connectivity expander that fans out a single host USB port into multiple downstream ports, while an integrated USB-to-Ethernet bridge adds wired networking without a PCI card or a second cable. In the system hierarchy, the ST3300GU3B sits at the peripheral layer: host USB controller > hub controller > downstream USB devices and NIC. This combination is common for thin laptops such as the Microsoft Surface Pro 4, Surface Pro 3, Surface Book, and Dell XPS 13, which have limited built-in I/O. Key features include SuperSpeed USB 3.2 Gen 1 throughput of 5 Gbps, UASP (USB Attached SCSI Protocol) support for faster storage transfers than standard BOT (Bulk-Only Transport), a 10/100/1000 Mbps RJ45 Ethernet port, and a durable aluminum chassis that also aids heat dissipation. The built-in cable eliminates the most common failure point of portable hubs: the detachable host lead. Internally, the device combines a USB 3.0 hub controller with a Gigabit Ethernet bridge IC; the Ethernet MAC/PHY shares the single 5 Gbps upstream pipe with the three USB-A ports, so concurrent heavy traffic is aggregated at the host link. Bus power (USB 3.0 provides 900 mA per port at the host) is distributed across downstream ports, which is adequate for flash drives, keyboards, mice, and most bus-powered SSDs, but not for high-draw devices such as bus-powered hard disk drives under sustained load. Typical applications include ultrabook and Surface laptop docking, field-service notebooks needing wired Ethernet, and desk setups where a single USB port must serve storage, input devices, and network access. Design consideration: because the hub is fully bus-powered, avoid connecting multiple high-current devices simultaneously; for power-hungry peripherals choose a self-powered hub with an external adapter. This page synthesizes distributor availability data, practical usage notes, and compliance information (TAA, RoHS) not consolidated in the manufacturer datasheet. Pricing as of 2026-10-19 is not published in the retrieved data; request a quote for current pricing.
TSM-106-01-L-SH - 6-Pin SMT Strip Header, Horizontal | Samtec
The Samtec TSM-106-01-L-SH is a 6-position, single-row, surface-mount terminal-strip header on a 0.100 inch (2.54 mm) pitch, with horizontal (right-angle) orientation and a 0.230 inch (5.84 mm) mating post length. It belongs to the TSM series of unshrouded, breakaway .025 inch square post headers and ships in 10 µin gold on the contact mating surface with tin on the solder tail. A board-to-board connector header is a through-hole or surface-mount male pin strip that mates with a corresponding female socket or socket strip to carry signals and low-current power between printed circuit boards. Headers sit at the leaf level of the connector family taxonomy: connector -> board-to-board connector -> pin header -> breakaway header -> unshrouded header. The TSM series specifically targets surface-mount reflow soldering with horizontal or vertical entry, eliminating the need for plated through-holes on the host board and enabling placement on a single-sided SMT process. Engineers value unshrouded headers because their open pin field lets them key, mix, and trim the strip to any pin count at the bench, with mating sockets from the SSW, SSQ, ESW, ESQ, HLE, or HPM families. Key features of the TSM-106-01-L-SH include a 0.025 inch (0.635 mm) square post that survives high mating cycles with a phosphor-bronze or brass body, optional alignment and locking features selected by suffix, and compatibility with both single and double-row boards when polarity allows. Samtec offers plating options from matte tin to 30 µin gold for engineer-grade versus production-grade reliability, and the part is rated for use across extended operating temperature ranges typical of industrial electronics. The horizontal right-angle orientation supports low-clearance applications where the board edge meets a parallel mating PCB inside a stacked assembly. Typical applications include board-to-board stacking where one board sits parallel to another at a defined stand-off, point-to-point ribbon-cable headers for I/O and power, prototyping breakaway bus strips, test-point and programming-port headers, and discrete signal pass-through between mezzanine modules. Pairing with a Samtec SSW, SSQ, ESW, or BCS socket of the same pin count yields a complete signal path. Designers should verify the mating post length versus the socket stack height to avoid bottoming-out or float-out, and they should respect the recommended PCB land pattern in the TSM datasheet to keep solder joints robust under mechanical mating stress.
U3-7HUB - 7-Port USB 3.0 Bus-Powered Hub | Multicomp Pro
The Multicomp Pro U3-7HUB is a 7-port USB 3.0 hub in a bus-powered form factor, providing SuperSpeed USB 3.0 connectivity with data transfer rates of up to 5 Gbps per the USB 3.0 specification, and is RoHS compliant. A USB hub is a connectivity device that expands a single USB host port into multiple downstream ports, allowing several USB peripherals to share one host connection. In the device hierarchy, a hub sits between the USB host controller (inside a PC, laptop, or industrial computer) and downstream devices such as storage drives, sensors, and instruments. Hubs may be bus-powered (drawing all power from the host port, typically limited to 900 mA total on USB 3.0) or self-powered (using an external power adapter). The U3-7HUB is specified as bus powered, which simplifies deployment by eliminating an external power brick. Key features of the U3-7HUB include seven downstream USB 3.0 Type-A ports, USB 3.0 SuperSpeed signaling rated at 5 Gbps (backward compatible with USB 2.0 and USB 1.1 devices), and a bus-powered hub style that suits desk-based and light-duty industrial use. According to the Newark product listing, the part is catalogued under MULTICOMP PRO as a USB 3.0 7-port hub, and Kynix confirms RoHS compliance: Yes. Technically, a USB 3.0 hub of this class integrates a SuperSpeed hub controller IC that maintains simultaneous USB 3.0 and USB 2.0 data paths, enabling mixed-speed peripherals to coexist without slowing the faster links. Note that on a bus-powered 7-port hub, aggregate current available to all downstream devices is constrained by the host port budget, so high-draw devices such as spinning hard drives may require a powered variant. Typical applications include desktop peripheral expansion for test benches, connecting USB instruments and loggers to industrial PCs, lab workstation port multiplication, and office/kiosk USB device fan-out. Design and deployment consideration: verify the total current draw of all connected peripherals stays within the host port's 900 mA USB 3.0 budget; for high-power peripherals, select a self-powered hub instead. This page synthesizes distributor listings, datasheet references, drop-in device-level alternatives, and practical deployment notes not consolidated on the manufacturer datasheet.
WIZ100SR - RS232 to TCP/IP Ethernet Bridge Module | WIZnet
The WIZnet WIZ100SR is a serial-to-Ethernet gateway module that converts RS-232 serial data into TCP/IP packet streams over a 10/100 Base-T/TX Ethernet interface, integrating a W5100 hardwired TCP/IP controller, an 8051-compatible MCU, and a 10/100 Mbps Ethernet PHY on a single through-hole module with RJ45 and DB9-compatible pin header I/O. Operating from a single 3.3 V DC supply and rated for the 0 °C to +80 °C commercial temperature range, the WIZ100SR exposes the W5100's four independent hardware sockets so that TCP, UDP, ICMP, IPv4, ARP, IGMP, and PPPoE protocols are processed entirely in silicon without burdening the host MCU. A Serial-to-Ethernet (also called RS232-to-Ethernet) module is a small embedded network appliance that transparently bridges a legacy asynchronous serial port to a TCP/IP network so that older equipment without native Ethernet can be monitored, controlled, or upgraded over LAN/WAN. In the wider product taxonomy the WIZ100SR sits within Interface Modules > Communication Modules > Serial Converters > Ethernet Bridges > IoT Connectivity Modules > Embedded Networking Modules, where it belongs to the same family as the WIZ105SR (RS-485 variant), WIZ120SR, WIZ145SR, and the newer W7500-based WIZ750SR-100 series. Key features include transparent serial tunneling in TCP Server, TCP Client, and UDP modes, configurable via the WIZnet Configuration Tool over Ethernet or RS-232, plus status LEDs for link, activity, and serial traffic. The integrated W5100 silicon provides 16 KB of dedicated TX/RX buffer memory per socket, eliminating the need for an external TCP/IP software stack and freeing the host 8051 MCU for application-layer processing. Typical applications include industrial RS-232 device networking (CNC controllers, weighing scales, PLCs, access controllers), remote serial port sharing over LAN/WAN, building-automation gateways, and point-of-sale (POS) terminal retrofits. The WIZ100SR is also widely used to add Ethernet connectivity to legacy instrumentation that lacks an embedded network stack. Design considerations include providing adequate 3.3 V decoupling near the module pins and reserving space for the RJ45 magnetics footprint. Compared with the newer WIZ750SR-100, the WIZ100SR is a cost-effective legacy platform, but the W7500-based successor offers a Cortex-M0 core, an IP101GRI PHY, and improved software compatibility for green-field designs. This page synthesizes distributor pricing, drop-in module alternatives within the WIZ1xx family, and practical design notes not consolidated on the manufacturer product page.