component
TIP137
Public Made by Adomby adom
STMicroelectronics Darlington Transistors, TO-220. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownTIP137
STMicroelectronics · Darlington Transistors · TO-220
TIP137 from STMicroelectronics, in a TO-220. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | Base | input | Base control terminal of Darlington transistor with maximum base current rating of 0.3 A and maximum emitter-base voltage of 5 V. |
| 2 | Collector | passive | Collector terminal of Darlington transistor with maximum continuous collector current of 8 A (peak 12 A) and maximum collector-emitter voltage of 100 V, connected to metal tab for thermal dissipation. |
| 3 | Emitter | passive | Emitter terminal forming the main current return path with maximum emitter cut-off current of 5 mA when collector current is zero. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | TO-220 |
| Category | Transistors/Thyristors |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
TIP137 - Footprint:
Package_TO_SOT_THT:TO-220-3_Vertical - 3D model: TO-220 (KiCad packages3D, STEP)
- 3D model files:
tip137-etched.step/tip137-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tip137.step/tip137.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (4 pp, sha256
b2a88a31161bd8e4, retrieved 2026-10-06, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).