component
AC857BSQ-7
Public Made by Adomby adom
Diodes Incorporated Bipolar Transistors - BJT, SOT-363. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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AC857BSQ-7
Diodes Incorporated · Bipolar Transistors - BJT · SOT-363
AC857BSQ-7 from Diodes Incorporated, in a SOT-363. 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 | E1 | passive | Emitter of PNP transistor 1 (Q1). |
| 2 | B1 | passive | Base of PNP transistor 1 (Q1). |
| 3 | C2 | passive | Collector of PNP transistor 2 (Q2). |
| 4 | E2 | passive | Emitter of PNP transistor 2 (Q2). |
| 5 | B2 | passive | Base of PNP transistor 2 (Q2). |
| 6 | C1 | passive | Collector of PNP transistor 1 (Q1). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SOT-363 |
| Category | Transistors/Thyristors |
| Pins | 6 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | tin | Terminals: Finish Matte Tin Finish. Solderable per MIL-STD202, Method 208 Weight: 0.006 grams (Approximate) | 1 |
CAD (KiCad official)
- Symbol:
AC857BSQ-7 - Footprint:
Package_TO_SOT_SMD:SOT-363_SC-70-6 - 3D model: SOT-363 (KiCad packages3D, STEP)
- 3D model files:
ac857bsq-7-etched.step/ac857bsq-7-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ac857bsq-7.step/ac857bsq-7.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes Incorporated datasheet (5 pp, sha256
0ec6f6273e4be53b, retrieved 2026-10-27, tier: manufacturer) - 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).
# AC857BSQ-7
**Diodes Incorporated** · Bipolar Transistors - BJT · SOT-363
AC857BSQ-7 from Diodes Incorporated, in a SOT-363. 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 | E1 | passive | Emitter of PNP transistor 1 (Q1). |
| 2 | B1 | passive | Base of PNP transistor 1 (Q1). |
| 3 | C2 | passive | Collector of PNP transistor 2 (Q2). |
| 4 | E2 | passive | Emitter of PNP transistor 2 (Q2). |
| 5 | B2 | passive | Base of PNP transistor 2 (Q2). |
| 6 | C1 | passive | Collector of PNP transistor 1 (Q1). |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SOT-363 |
| Category | Transistors/Thyristors |
| Pins | 6 |
## Materials and finish
As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | | tin | Terminals: Finish Matte Tin Finish. Solderable per MIL-STD202, Method 208 Weight: 0.006 grams (Approximate) | 1 |
## CAD (KiCad official)
- Symbol: `AC857BSQ-7`
- Footprint: `Package_TO_SOT_SMD:SOT-363_SC-70-6`
- 3D model: SOT-363 (KiCad packages3D, STEP)
- 3D model files: `ac857bsq-7-etched.step` / `ac857bsq-7-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ac857bsq-7.step` / `ac857bsq-7.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Diodes Incorporated datasheet](https://www.diodes.com/assets/Datasheets/AC857BSQ-7.pdf) (5 pp, sha256 `0ec6f6273e4be53b`, retrieved 2026-10-27, tier: manufacturer)
- **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/ac857bsq-7-datasheet.pdf)