MMBT3906T7

Siliup · Bipolar (BJT) · SOT-723

MMBT3906T7 from Siliup, in a SOT-723. 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 PNP transistor; the datasheet gives VEBO of -5 V and an emitter-base breakdown voltage BVEBO of -5 V minimum.
2	EMITTER	passive	Emitter of the PNP transistor; the datasheet gives VEBO of -5 V as the maximum emitter-base voltage.
3	COLLECTOR	passive	Collector of the PNP transistor; the datasheet gives VCEO of -40 V, VCBO of -40 V and a collector current IC of -200 mA.

Key specifications

Parameter	Value
Manufacturer	Siliup
Package	SOT-723
Category	Transistors/Thyristors
Pins	3

CAD (KiCad official)

Symbol: MMBT3906T7
Footprint: Package_TO_SOT_SMD:SOT-723
3D model: SOT-723, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.5 mm nominal SOT-723 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: mmbt3906t7-etched.step / mmbt3906t7-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mmbt3906t7.step / mmbt3906t7.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

Datasheet: Siliup datasheet (4 pp, sha256 7ff7434a785753e6, 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

# MMBT3906T7

**Siliup** · Bipolar (BJT) · SOT-723

MMBT3906T7 from Siliup, in a SOT-723. 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 PNP transistor; the datasheet gives VEBO of -5 V and an emitter-base breakdown voltage BVEBO of -5 V minimum. |
| 2 | EMITTER | passive | Emitter of the PNP transistor; the datasheet gives VEBO of -5 V as the maximum emitter-base voltage. |
| 3 | COLLECTOR | passive | Collector of the PNP transistor; the datasheet gives VCEO of -40 V, VCBO of -40 V and a collector current IC of -200 mA. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Siliup |
| Package | SOT-723 |
| Category | Transistors/Thyristors |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `MMBT3906T7`
- Footprint: `Package_TO_SOT_SMD:SOT-723`
- 3D model: SOT-723, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.5 mm nominal SOT-723 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: `mmbt3906t7-etched.step` / `mmbt3906t7-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mmbt3906t7.step` / `mmbt3906t7.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Siliup datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8604447985225396224) (4 pp, sha256 `7ff7434a785753e6`, 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/mmbt3906t7-datasheet.pdf)