component
2SA812-G
Public Made by Adomby adom
Foshan Blue Rocket Elec Bipolar (BJT), SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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2SA812-G
Foshan Blue Rocket Elec · Bipolar (BJT) · SOT-23
2SA812-G from Foshan Blue Rocket Elec, in a SOT-23. 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 | passive | Base terminal of the silicon PNP transistor; the datasheet gives the emitter-to-base voltage limit VEBO as -5.0 V and the base current used in the VCE(sat) test as IB=-10 mA at IC=-100 mA. |
| 2 | E | passive | Emitter terminal of the silicon PNP transistor; the emitter-to-base voltage is rated at VEBO = -5.0 V maximum. |
| 3 | Collector | passive | Collector terminal of the silicon PNP transistor; the datasheet limits the collector current to IC = -100 mA and collector-to-base voltage to VCBO = -60 V, with collector-to-emitter voltage VCEO = -50 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Foshan Blue Rocket Elec |
| Package | SOT-23 |
| Category | Transistors/Thyristors |
| Pins | 3 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| DC Current Gain (G grade, hFE range) | hFE | 200 | 400 | 1 | |||
| DC Current Gain | hFE | 90 | 200 | 600 | VCE=-6.0V IC=-1.0mA | 2 | |
| Collector to Base Voltage | VBE | -0.58 | -0.62 | -0.68 | V | VCE=-6.0V IC=-1.0mA | 2 |
| Collector Cut-Off Current | ICBO | -0.1 | μA | VCB=-60V IE=0 | 2 | ||
| Emitter Base Cut-Off Current | IEBO | -0.1 | μA | VEB=-5.0V IC=0 | 2 | ||
| Collector to Base Voltage | VCBO | -60 | V | 2 | |||
| Collector to Emitter Voltage | VCEO | -50 | V | 2 | |||
| Emitter to Base Voltage | VEBO | -5 | V | 2 | |||
| Collector Current | IC | -100 | mA | 2 | |||
| Collector Power Dissipation | PC | 200 | mW | 2 | |||
| Junction Temperature | Tj | 150 | ℃ | 2 | |||
| Storage Temperature Range | Tstg | -55 | 150 | ℃ | 2 | ||
| Collector to Emitter Saturation Voltage | VCE(sat) | -0.18 | -0.3 | V | IC=-100mA IB=-10mA | 2 | |
| Transition Frequency | fT | 180 | MHz | VCE=-6.0V IC=-10mA | 2 | ||
| Collector Output Capacitance | Cob | 4.5 | pF | VCB=-10V IE=0 f=1.0MHz | 2 |
CAD (KiCad official)
- Symbol:
2SA812-G - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
2sa812-g-etched.step/2sa812-g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);2sa812-g.step/2sa812-g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Foshan Blue Rocket Elec datasheet (6 pp, sha256
e11cc31e77f0ba25, retrieved 2026-10-19, 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).
# 2SA812-G
**Foshan Blue Rocket Elec** · Bipolar (BJT) · SOT-23
2SA812-G from Foshan Blue Rocket Elec, in a SOT-23. 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 | passive | Base terminal of the silicon PNP transistor; the datasheet gives the emitter-to-base voltage limit VEBO as -5.0 V and the base current used in the VCE(sat) test as IB=-10 mA at IC=-100 mA. |
| 2 | E | passive | Emitter terminal of the silicon PNP transistor; the emitter-to-base voltage is rated at VEBO = -5.0 V maximum. |
| 3 | Collector | passive | Collector terminal of the silicon PNP transistor; the datasheet limits the collector current to IC = -100 mA and collector-to-base voltage to VCBO = -60 V, with collector-to-emitter voltage VCEO = -50 V. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Foshan Blue Rocket Elec |
| Package | SOT-23 |
| Category | Transistors/Thyristors |
| Pins | 3 |
## Electrical characteristics
Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| DC Current Gain (G grade, hFE range) | hFE | 200 | | 400 | | | 1 |
| DC Current Gain | hFE | 90 | 200 | 600 | | VCE=-6.0V IC=-1.0mA | 2 |
| Collector to Base Voltage | VBE | -0.58 | -0.62 | -0.68 | V | VCE=-6.0V IC=-1.0mA | 2 |
| Collector Cut-Off Current | ICBO | | | -0.1 | μA | VCB=-60V IE=0 | 2 |
| Emitter Base Cut-Off Current | IEBO | | | -0.1 | μA | VEB=-5.0V IC=0 | 2 |
| Collector to Base Voltage | VCBO | | | -60 | V | | 2 |
| Collector to Emitter Voltage | VCEO | | | -50 | V | | 2 |
| Emitter to Base Voltage | VEBO | | | -5 | V | | 2 |
| Collector Current | IC | | | -100 | mA | | 2 |
| Collector Power Dissipation | PC | | | 200 | mW | | 2 |
| Junction Temperature | Tj | | | 150 | ℃ | | 2 |
| Storage Temperature Range | Tstg | -55 | | 150 | ℃ | | 2 |
| Collector to Emitter Saturation Voltage | VCE(sat) | | -0.18 | -0.3 | V | IC=-100mA IB=-10mA | 2 |
| Transition Frequency | fT | | 180 | | MHz | VCE=-6.0V IC=-10mA | 2 |
| Collector Output Capacitance | Cob | | 4.5 | | pF | VCB=-10V IE=0 f=1.0MHz | 2 |
## CAD (KiCad official)
- Symbol: `2SA812-G`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `2sa812-g-etched.step` / `2sa812-g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `2sa812-g.step` / `2sa812-g.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Foshan Blue Rocket Elec datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588884459952721920) (6 pp, sha256 `e11cc31e77f0ba25`, retrieved 2026-10-19, 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/2sa812-g-datasheet.pdf)