component
B772M
Public Made by Adomby adom
Changjing Bipolar (BJT), TO-252-2L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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B772M
Changjing · Bipolar (BJT) · TO-252-2L
B772M from Changjing, in a TO-252-2L. 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 PNP transistor; the datasheet specifies VBE(sat) of -1.5 V at IC=-2 A, IB=-0.2 A and emitter-base voltage VEBO of -6 V. |
| 2 | COLLECTOR | passive | Collector terminal; absolute limits are VCBO -40 V, VCEO -30 V, continuous collector current -3 A, and collector power dissipation 1.25 W. |
| 3 | EMITTER | passive | Emitter terminal; emitter-base breakdown voltage V(BR)EBO is -6 V at IE=-100 µA and the rated VEBO is -6 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | TO-252-2L |
| Category | Transistors/Thyristors |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
B772M - Footprint:
Package_TO_SOT_SMD:TO-252-2 - 3D model: TO-252-2L (KiCad packages3D, STEP)
- 3D model files:
b772m-etched.step/b772m-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);b772m.step/b772m.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Changjing datasheet (4 pp, sha256
2dea65d4ac05dd4b, 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).
# B772M
**Changjing** · Bipolar (BJT) · TO-252-2L
B772M from Changjing, in a TO-252-2L. 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 PNP transistor; the datasheet specifies VBE(sat) of -1.5 V at IC=-2 A, IB=-0.2 A and emitter-base voltage VEBO of -6 V. |
| 2 | COLLECTOR | passive | Collector terminal; absolute limits are VCBO -40 V, VCEO -30 V, continuous collector current -3 A, and collector power dissipation 1.25 W. |
| 3 | EMITTER | passive | Emitter terminal; emitter-base breakdown voltage V(BR)EBO is -6 V at IE=-100 µA and the rated VEBO is -6 V. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | TO-252-2L |
| Category | Transistors/Thyristors |
| Pins | 3 |
## CAD (KiCad official)
- Symbol: `B772M`
- Footprint: `Package_TO_SOT_SMD:TO-252-2`
- 3D model: TO-252-2L (KiCad packages3D, STEP)
- 3D model files: `b772m-etched.step` / `b772m-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `b772m.step` / `b772m.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Changjing datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586175590961045504) (4 pp, sha256 `2dea65d4ac05dd4b`, 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/b772m-datasheet.pdf)