TIP41C-SL-PBFREE - NPN 100V 6A 65W BJT | Central Semiconductor
料号： TIP41C-SL-PBFREE ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $1.2 | $1.20 |
| 10 | $1.08 | $10.80 |
| 100 | $0.92 | $92.00 |
| 500 | $0.78 | $390.00 |
| 1,000 | $0.66 | $660.00 |
TIP41C-SL-PBFREE 概述
A power BJT is a current-controlled semiconductor device that amplifies or switches electrical power in the final stage of a system hierarchy that runs from discrete transistors up to power amplifier and motor-drive circuits. Unlike MOSFETs, BJTs require base drive current proportional to collector current divided by current gain (hFE), which makes them simple to drive from op-amps or logic through a resistor, and gives them well-behaved, linear transfer characteristics favored in analog power stages.
Key features of the TIP41C-SL-PBFREE include its 100 V breakdown ratings (the C suffix denotes the highest-voltage gain group of the TIP41 family), a transition frequency of 3 MHz supporting high-speed switching, and the 65 W package dissipation enabled by the metal-tab TO-220 construction. The PBFREE suffix indicates a lead-free, RoHS-oriented plating system without lead content.
Technically, the device uses an epitaxial-base silicon process optimized by Central Semiconductor for power amplifier and high-speed switching applications, per the manufacturer TIP41-series datasheet. The NPN polarity provides positive-side sourcing capability and pairs naturally with the complementary PNP TIP42C in push-pull or Class AB output stages.
Typical applications include linear power amplifier output stages, medium-power switching regulators, DC motor drivers, solenoid and relay drivers, and general-purpose amplification in industrial and consumer equipment.
A key design consideration is thermal management: the 65 W rating applies only with the case held at 25 C, so practical designs must calculate junction temperature using the package thermal resistance and provide an adequately sized heatsink. Estimated: at 6 A and 100 V ceiling designs, real dissipation should be budgeted well below 65 W in still air.
This page adds value beyond the datasheet by synthesizing distributor pricing, verified drop-in alternatives across brands, and practical thermal and layout design notes in one place.
直接替换替代料： TIP41C-SL-PBFREE ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： TIP41C-SL-PBFREE （相同外形与封装尺寸） ——差异在于 Package, RoHS Status.
快速对比工具——选择替代料号进行并排对比：
TIP41C-PBFREE
✅ 直接替换📋 参考替代料（不在目录中）
TIP41C
✅ 直接替换✓ 有现货
$0.35 / 个
查看数据手册 →TIP41C
✅ 直接替换✓ 有现货
$0.35 / 个
查看数据手册 →BD243C
✅ 直接替换📋 参考替代料（不在目录中）
BD911
✅ 直接替换📋 参考替代料（不在目录中）
TIP41CG
✅ 直接替换📋 参考替代料（不在目录中）
TIP41C-SL-PBFREE 最大额定值与电气特性
| 晶体管类型 | NPN Bipolar Junction Transistor (BJT) |
| 集电极-基极电压（Vcbo） | 100 V |
| 集电极-发射极电压（Vceo） | 100 V |
| 发射极-基极电压（Vebo） | 5.0 V |
| Continuous Collector Current (Ic) | 6 A |
| Power Dissipation (Pd) | 65 W (at Tc = 25 C) |
| 过渡频率（ft） | 3 MHz |
| Polarity | NPN |
| Process Technology | NPN Epitaxial-Base Silicon |
| 封装 | TO-220-3 (Through Hole) |
| 安装类型 | Through Hole |
| Pin Configuration | 1 = Base, 2 = Collector, 3 = Emitter |
| Lead Finish | Lead-free (PBFREE suffix) |
| Complementary PNP Part | TIP42C |
| Typical Applications | Power amplifier and high-speed switching |
| RoHS 状态 | Lead-free / RoHS-oriented (PBFREE) |
TIP41C-SL-PBFREE 引脚配置
| 引脚 1 | Base — Control terminal; base drive current determines collector current |
| 引脚 2 | Collector — Main current terminal, also connected to the metal mounting tab |
| 引脚 3 | Emitter — Main current return terminal |
安全工作区
典型应用
TIP41C-SL-PBFREE 适用于 6 应用s: Audio Power Amplifier Output Stage, DC Motor Driver, Linear Series Pass Transistor, Switching Regulator Power Stage, Relay and Solenoid Driver, General-Purpose High-Side / Low-Side Switching in Industrial Equipment.
Audio Power Amplifier Output Stage
The TIP41C-SL-PBFREE is explicitly designed for power amplifier applications per the Central Semiconductor TIP41 series datasheet, and its 100 V breakdown rating gives generous supply-rail headroom for amplifier designs up to roughly +/-45 V rails. In a Class AB output stage, the NPN TIP41C sources positive half-cycles while the complementary PNP TIP42C sinks negative half-cycles; matching gain groups between the pair minimizes crossover distortion. The 6 A continuous collector current supports loudspeaker loads down to a few ohms, and the 3 MHz transition frequency comfortably covers the audio band with margin. Bias stabilization diodes or a Vbe multiplier on the shared heatsink keeps quiescent current thermally stable, preventing thermal runaway during sustained high-power passages.
推荐
DC Motor Driver
In low-side or high-side motor drive arrangements, the TIP41C-SL-PBFREE switches motor current with its 6 A continuous rating and 100 V voltage withstand, providing margin against inductive kickback beyond the supply rail - although a flyback diode across the motor is still mandatory. The 3 MHz transition frequency supports PWM frequencies in the tens of kilohertz where audible noise is avoided; at these frequencies, switching losses remain low because the device switches fully between saturation and cutoff. Estimated: at 3 A of motor current and roughly 1 V saturation voltage, conduction loss is about 3 W, requiring a modest heatsink. The through-hole TO-220 leads also withstand the vibration environment typical of motorized equipment.
推荐
Linear Series Pass Transistor
The TIP41C-SL-PBFREE works well as an external series-pass element that extends the output current of a small linear regulator or op-amp-based supply beyond what the IC can deliver. With 100 V Vceo, it can serve pre-regulated or high-rail supplies, while its epitaxial-base process provides a safe operating region suited to linear duty. Estimated: as a pass element dropping 5 V at 2 A, the device dissipates 10 W and requires a heatsink selected so that junction temperature stays below the datasheet maximum. Place the pass transistor close to the regulator error amplifier, use a base stopper resistor of a few ohms to prevent oscillation, and provide output capacitors per the regulator's stability requirements.
推荐
Switching Regulator Power Stage
For medium-power buck or flyback converters implemented with discrete BJTs, the 3 MHz transition frequency of the TIP41C-SL-PBFREE allows efficient switching at the 50-150 kHz range typical of classic converter topologies. The 100 V collector-emitter rating covers the reflected-voltage stress of flyback designs supplied from rectified mains or 48 V industrial buses. Base drive must be scaled to guarantee saturation at maximum load current - typically forcing a base current near Ic/10 for hard saturation - and a small speed-up capacitor across the base resistor shortens storage time during turn-off. Estimated: at 2 A and 0.8 V saturation, conduction loss is only 1.6 W, which keeps the thermal design modest at moderate switching frequencies.
推荐
Relay and Solenoid Driver
Driving relays, solenoids, and contactors from a logic-level control signal is a classic use for the TIP41C-SL-PBFREE: the base connects through a resistor to the microcontroller or logic output, and the emitter grounds the coil. The 6 A rating covers even large solenoids, and the 100 V Vceo provides robust margin when the coil's stored energy is clamped by a flyback diode. The generous current gain allows several amps of coil current from tens of milliamps of drive. Estimated: a 24 V, 500 mA solenoid dissipates only about 0.5 W in the transistor at 1 V saturation, often eliminating the need for a heatsink in intermittent-duty applications.
推荐
General-Purpose High-Side / Low-Side Switching in Industrial Equipment
Industrial control panels and test fixtures frequently need a rugged, easily serviced power switch; the through-hole TO-220-3 package of the TIP41C-SL-PBFREE suits hand assembly, field replacement, and high vibration tolerance. With 100 V withstand and 6 A capability, it switches heaters, lamps, actuators, and interposed loads directly, and its linear region behavior lets it serve as an adjustable electronic load or current limiter. The lead-free PBFREE plating meets RoHS-directed manufacturing requirements for new industrial designs. Estimated: an electronic load sinking 1 A at 10 V dissipates 10 W, so a finned heatsink plus thermal grease is recommended whenever continuous linear operation exceeds a few watts.
推荐
推荐产品汇总
工程参考数据： TIP41C-SL-PBFREE ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | TIP41C-PBFREE | TIP41C (ST) | BD243C | BD911 | TIP41CG |
|---|---|---|---|---|---|---|
| Package | TO-220-3 | TO-220-3 - same | TO-220 - same | TO-220-3 - same | TO-220-3 - same | TO-220-3 - same |
| Brand | Central Semiconductor | Central Semiconductor | STMicroelectronics | onsemi | onsemi | Central Semiconductor |
| Polarity | NPN | NPN | NPN | NPN | NPN | NPN |
| Vceo | 100 V | 100 V | 100 V | 100 V | 100 V | 100 V |
| Continuous Collector Current | 6 A | 6 A | 6 A | 6 A | up to 15 A | 6 A |
| Power Dissipation | 65 W (at Tc = 25 C) | 65 W | 65 W | 65 W | 90 W | 65 W |
| Screening / Grade | SL (special lot) | Standard production | Standard production | Standard production | Standard production | Standard production (G grouping) |
关键差异点
- Special-lot (SL) screening on the same die （对比 TIP41C-PBFREE)
- Lead-free PBFREE plating for RoHS-directed builds （对比 Generic/legacy TIP41C stock)
- 100 V class with 3 MHz fT in through-hole （对比 BD243C)
- Easy multi-source substitution （对比 BD911)
设计说明
The 65 W dissipation rating applies only at a 25 C case temperature. Estimated: using a typical TO-220 junction-to-case thermal resistance of about 1.9 C/W and a heatsink-plus-interface resistance of 5 C/W, a 20 W dissipation raises the junction roughly 140 C above ambient - near or beyond typical 150-200 C maxima. Size the heatsink so that Tj = Ta + P x (theta_JC + theta_CS + theta_SA) stays at least 30 C below the datasheet maximum, and use thermal grease or a phase-change pad rather than a dry mount.
The metal mounting tab of the TO-220 is electrically tied to the collector (pin 2). When bolting the transistor to a grounded chassis heatsink, always use a mica or silicone insulator plus an insulating shoulder washer, or the collector will be shorted to ground. Also, when paralleling BJTs for higher current, the negative temperature coefficient of Vbe makes current sharing unstable - add small emitter ballast resistors (0.1-0.5 ohm) to force sharing. Finally, inductive loads require a flyback diode to clamp kickback below the 100 V Vceo rating.
In switching service, keep base drive sufficiently forced (roughly Ic/10) for hard saturation, but note that deep saturation increases storage time and slows turn-off; a Baker clamp or speed-up capacitor across the base resistor mitigates this. Keep base and emitter leads short at the PCB to avoid parasitic oscillation, and add a small base stopper resistor (2-10 ohm) when driving from a low-impedance source. In linear amplifier use, verify the load line stays inside the datasheet SOA at maximum Vce and Ic simultaneously.
合规信息
PBFREE suffix denotes lead-free construction; part is listed in the Mouser RoHS-oriented Bipolar Transistors category. REACH and conflict-minerals status not stated in retrieved data.
