component
BM3139KT
Public Made by Adomby adom
BORN MOSFETs, SOT-523. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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BM3139KT
BORN · MOSFETs · SOT-523
BM3139KT from BORN, in a SOT-523. 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 | G | input | Gate; ESD-protected gate input with VGS rating of ±12V and threshold of -0.35V to -1.2V at ID=-250uA. |
| 2 | S | passive | Source; P-channel MOSFET source terminal, continuous drain current -0.5A at TA=25°C. |
| 3 | D | passive | Drain; P-channel MOSFET drain terminal with VDS rating of -20V and RDS(on) typ 530mΩ at VGS=-4.5V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | BORN |
| Package | SOT-523 |
| Category | Transistors/Thyristors |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
BM3139KT - Footprint:
Package_TO_SOT_SMD:SOT-523 - 3D model: SOT-523, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.8 mm nominal SOT-523 height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
- 3D model files:
bm3139kt-etched.step/bm3139kt-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bm3139kt.step/bm3139kt.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: BORN datasheet (4 pp, sha256
566b5143bef5a339, 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).
# BM3139KT
**BORN** · MOSFETs · SOT-523
BM3139KT from BORN, in a SOT-523. 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 | G | input | Gate; ESD-protected gate input with VGS rating of ±12V and threshold of -0.35V to -1.2V at ID=-250uA. |
| 2 | S | passive | Source; P-channel MOSFET source terminal, continuous drain current -0.5A at TA=25°C. |
| 3 | D | passive | Drain; P-channel MOSFET drain terminal with VDS rating of -20V and RDS(on) typ 530mΩ at VGS=-4.5V. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | BORN |
| Package | SOT-523 |
| Category | Transistors/Thyristors |
| Pins | 3 |
## CAD (KiCad official)
- Symbol: `BM3139KT`
- Footprint: `Package_TO_SOT_SMD:SOT-523`
- 3D model: SOT-523, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.8 mm nominal SOT-523 height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
- 3D model files: `bm3139kt-etched.step` / `bm3139kt-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bm3139kt.step` / `bm3139kt.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [BORN datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603356969210298368) (4 pp, sha256 `566b5143bef5a339`, retrieved 2026-10-09, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-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).
[Datasheet PDF](docs/bm3139kt-datasheet.pdf)