component
MMBTA14W
Public Made by Adomby adom
ST Semtech Darlington Transistors, SOT-323. Datasheet-verified pinout, 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
markdownMMBTA14W
ST Semtech · Darlington Transistors · SOT-323
MMBTA14W from ST Semtech, in a SOT-323. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | B | input | Base - NPN Darlington input; VBE(on) max 2 V at IC = 100 mA, VCE = 5 V; hFE min 10000 at IC = 10 mA. |
| 2 | E | passive | Emitter - NPN Darlington emitter; VEBO max 10 V; IEBO max 100 nA at VEB = 10 V. |
| 3 | C | passive | Collector - NPN Darlington collector; VCES 30 V, IC max 500 mA, VCE(sat) max 1.5 V at IC = 100 mA / IB = 0.1 mA, Ptot max 200 mW. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ST Semtech |
| Package | SOT-323 |
| Category | Transistors/Thyristors |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
MMBTA14W - Footprint:
Package_TO_SOT_SMD:SOT-323_SC-70 - 3D model: SOT-323 (KiCad packages3D, STEP)
- 3D model files:
mmbta14w-etched.step/mmbta14w-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mmbta14w.step/mmbta14w.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ST Semtech datasheet (1 pp, sha256
3ffd180dac9050a8, retrieved 2026-09-21, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-sonnet-4-6(text+vision), consensusclaude-opus-4-7(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).