component
BCW66H
Public Made by Adomby adom
LGE Bipolar (BJT), SOT-23. 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
markdownBCW66H
LGE · Bipolar (BJT) · SOT-23
BCW66H from LGE, in a SOT-23. 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 of the NPN transistor; BCW66 ratings: VEBO 5 V, hFE 250 to 630 for the H grade at VCE=5V, IC=2mA. |
| 2 | EMITTER | passive | Emitter of the NPN transistor; emitter-base voltage limited to 5 V (VEBO). |
| 3 | COLLECTOR | passive | Collector of the NPN transistor; BCW66 VCBO 45 V, VCEO 75 V, continuous IC 800 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | LGE |
| Package | SOT-23 |
| Category | Transistors/Thyristors |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
BCW66H - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
bcw66h-etched.step/bcw66h-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bcw66h.step/bcw66h.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: LGE datasheet (4 pp, sha256
4770f3dee0ccd9e5, retrieved 2026-10-09, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).