# BC3415

**CBI** · MOSFETs · SOT-23

BC3415 from CBI, 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 | GATE | input | Gate terminal of the P-channel MOSFET, with gate-source voltage VGS rated at ±8 V in the maximum ratings. |
| 2 | SOURCE | passive | Source terminal of the P-channel MOSFET; the body diode forward voltage VSD is specified at -1 V with IS = -1 A and VGS = 0 V. |
| 3 | DRAIN | passive | Drain terminal of the P-channel MOSFET, rated for a drain-source voltage VDS of -20 V and a continuous drain current ID of -4.0 A (t≤10 s). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | CBI |
| 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 |
|---|---|---|---|---|---|---|---|
| Drain-Source Voltage | VDS |  |  | -20 | V |  | 1 |
| Gate-Source Voltage | VGS | -8 |  | 8 | V |  | 1 |
| Continuous Drain Current | ID |  |  | -4 | A | t≤10s | 1 |
| Maximum Power Dissipation | PD |  |  | 0.35 | W | t≤10s | 1 |
| Thermal Resistance from Junction to Ambient | RθJA |  |  | 357 | ℃/W |  | 1 |
| Operating Junction Temperature | TJ |  |  | 150 | ℃ |  | 1 |
| Storage Temperature | TSTG | -55 |  | 150 | ℃ |  | 1 |
| Drain-source breakdown voltage | V(BR)DSS | -20 |  |  | V | VGS = 0V, ID = -250µA | 2 |
| Gate threshold voltage | VGS(th) | -0.3 | -0.56 | -1 | V | VDS = VGS, ID = -250µA | 2 |
| Gate-body leakage current | IGSS | -10 |  | 10 | µA | VDS = 0V, VGS = ±8V | 2 |
| Gate-body leakage current | IGSS | -1 |  | 1 | µA | VDS = 0V, VGS = ±4.5V | 2 |
| Zero gate voltage drain current | IDSS |  |  | -1 | µA | VDS = -16V, VGS = 0V | 2 |
| Drain-source on-state resistance | RDS(on) |  | 0.037 | 0.05 | Ω | VGS = -4.5V, ID = -4A | 2 |
| Drain-source on-state resistance | RDS(on) |  | 0.045 | 0.06 | Ω | VGS = -2.5V, ID = -4A | 2 |
| Drain-source on-state resistance | RDS(on) |  | 0.08 | 0.1 | Ω | VGS = -1.8V, ID = -2A | 2 |
| Forward transconductance | gFS | 8 |  |  | S | VDS = -5V, ID = -4A | 2 |
| Body diode voltage | VSD |  |  | -1 | V | IS = -1A, VGS = 0V | 2 |

## CAD (KiCad official)

- Symbol: `BC3415`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `bc3415-etched.step` / `bc3415-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bc3415.step` / `bc3415.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [CBI datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603120020449222656) (4 pp, sha256 `27e89287db0f72ce`, retrieved 2026-10-18, 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/bc3415-datasheet.pdf)