# BC807-25LT1G

**onsemi** · Bipolar (BJT) · SOT-23

BC807-25LT1G from onsemi, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | BASE | input | Base control terminal; maximum emitter-base voltage VEBO = −5.0 V. |
| 2 | EMITTER | passive | Emitter terminal of main current path; maximum emitter-base voltage VEBO = −5.0 V. |
| 3 | COLLECTOR | passive | Collector terminal of main current path; maximum collector-emitter voltage VCEO = −45 V and maximum continuous collector current IC = −500 mA. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| 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 |
|---|---|---|---|---|---|---|---|
| Collector-Emitter Breakdown Voltage | V(BR)CEO | -45 |  |  | V | IC = −10 mA | 2 |
| Collector-Emitter Breakdown Voltage | V(BR)CES | -50 |  |  | V | VEB = 0, IC = −10 A | 2 |
| Emitter-Base Breakdown Voltage | V(BR)EBO | -5 |  |  | V | IE = −1.0 A | 2 |
| Collector Cutoff Current | ICBO |  |  | -100 | nA | VCB = −20 V | 2 |
| Collector Cutoff Current | ICBO |  |  | -5 | A | VCB = −20 V, TJ = 150°C | 2 |
| DC Current Gain (BC807-25) | hFE | 160 |  | 400 |  | IC = −100 mA, VCE = −1.0 V | 2 |
| DC Current Gain (BC807-25) | hFE | 40 |  |  |  | IC = −500 mA, VCE = −1.0 V | 2 |
| Collector-Emitter Saturation Voltage | VCE(sat) |  |  | -0.7 | V | IC = −500 mA, IB = −50 mA | 2 |
| Base-Emitter On Voltage | VBE(on) |  |  | -1.2 | V | IC = −500 mA, VCE = −1.0 V | 2 |
| Current-Gain-Bandwidth Product | fT | 100 |  |  | MHz | IC = −10 mA, VCE = −5.0 Vdc, f = 100 MHz | 2 |
| Collector-Emitter Voltage | VCEO |  |  | -45 | V |  | 1 |
| Collector-Base Voltage | VCBO |  |  | -50 | V |  | 1 |
| Emitter-Base Voltage | VEBO |  |  | -5 | V |  | 1 |
| Collector Current - Continuous | IC |  |  | -500 | mAdc |  | 1 |
| Junction and Storage Temperature | TJ, Tstg | -55 |  | 150 | °C |  | 1 |
| Total Device Dissipation (FR-5 Board) | PD |  |  | 225 | mW | FR-5 Board (Note 1), TA = 25°C | 1 |
| Thermal Resistance, Junction-to-Ambient (FR-5 Board) | RJA |  |  | 556 | °C/W | FR-5 Board (Note 1) | 1 |
| Total Device Dissipation (Alumina Substrate) | PD |  |  | 300 | mW | Alumina Substrate (Note 2), TA = 25°C | 1 |
| Thermal Resistance, Junction-to-Ambient (Alumina Substrate) | RJA |  |  | 417 | °C/W | Alumina Substrate (Note 2) | 1 |

## CAD (KiCad official)

- Symbol: `BC807-25LT1G`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `bc807-25lt1g-etched.step` / `bc807-25lt1g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bc807-25lt1g.step` / `bc807-25lt1g.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [onsemi datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586187768217415680) (10 pp, sha256 `8095a17325cb175d`, retrieved 2026-09-23, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-4-6` (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/bc807-25lt1g-datasheet.pdf)