component
BCX54-16
Public Made by Adomby adom
TWGMC Bipolar (BJT), SOT-89. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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BCX54-16
TWGMC · Bipolar (BJT) · SOT-89
BCX54-16 from TWGMC, in a SOT-89. 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 terminal of the BCX54-16 NPN transistor, with emitter-base breakdown V(BR)EBO of 5 V minimum at IE=100µA and VEBO rated at 5 V. |
| 2 | COLLECTOR | passive | Collector terminal, rated for IC of 1 A maximum and collector-base voltage VCBO of 45 V for the BCX54 (60 V BCX55, 100 V BCX56) within the 500 mW PC limit. |
| 3 | EMITTER | passive | Emitter terminal, rated with collector-emitter voltage VCEO of 45 V for the BCX54 (60 V BCX55, 80 V BCX56) and emitter-base voltage VEBO of 5 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TWGMC |
| Package | SOT-89 |
| Category | Transistors/Thyristors |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
BCX54-16 - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89 (KiCad packages3D, STEP)
- 3D model files:
bcx54-16-etched.step/bcx54-16-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bcx54-16.step/bcx54-16.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TWGMC datasheet (4 pp, sha256
b18ef491c444b792, retrieved 2026-10-09, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(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).
# BCX54-16
**TWGMC** · Bipolar (BJT) · SOT-89
BCX54-16 from TWGMC, in a SOT-89. 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 terminal of the BCX54-16 NPN transistor, with emitter-base breakdown V(BR)EBO of 5 V minimum at IE=100µA and VEBO rated at 5 V. |
| 2 | COLLECTOR | passive | Collector terminal, rated for IC of 1 A maximum and collector-base voltage VCBO of 45 V for the BCX54 (60 V BCX55, 100 V BCX56) within the 500 mW PC limit. |
| 3 | EMITTER | passive | Emitter terminal, rated with collector-emitter voltage VCEO of 45 V for the BCX54 (60 V BCX55, 80 V BCX56) and emitter-base voltage VEBO of 5 V. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TWGMC |
| Package | SOT-89 |
| Category | Transistors/Thyristors |
| Pins | 3 |
## CAD (KiCad official)
- Symbol: `BCX54-16`
- Footprint: `Package_TO_SOT_SMD:SOT-89-3`
- 3D model: SOT-89 (KiCad packages3D, STEP)
- 3D model files: `bcx54-16-etched.step` / `bcx54-16-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bcx54-16.step` / `bcx54-16.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [TWGMC datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590454705613934592) (4 pp, sha256 `b18ef491c444b792`, retrieved 2026-10-09, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-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).
[Datasheet PDF](docs/bcx54-16-datasheet.pdf)