# 2SC4226 R25

**Slkor SLKORMICRO Elec** · Bipolar (BJT) · SOT-323

2SC4226 R25 from Slkor SLKORMICRO Elec, in a SOT-323. 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 of the NPN transistor; Emitter-Base voltage is limited to 3 V maximum (VEBO) and hFE is 40-250 at VCE=3V, IC=7mA (R25 grade 125-250). |
| 2 | Emitter | passive | Emitter of the NPN transistor; total collector current is rated up to 100 mA (IC). |
| 3 | Collector | passive | Collector of the NPN transistor; rated 20 V Collector-Base (VCBO), 12 V Collector-Emitter (VCEO), 100 mA and 150 mW dissipation. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Slkor SLKORMICRO Elec |
| Package | SOT-323 |
| Category | Transistors/Thyristors |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `2SC4226 R25`
- Footprint: `Package_TO_SOT_SMD:SOT-323_SC-70`
- 3D model: SOT-323 (KiCad packages3D, STEP)
- 3D model files: `2sc4226-r25-etched.step` / `2sc4226-r25-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `2sc4226-r25.step` / `2sc4226-r25.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Slkor SLKORMICRO Elec datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588906748387708928) (4 pp, sha256 `28db62df57ca0f6a`, retrieved 2026-10-09, tier: lcsc)
- **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/2sc4226-r25-datasheet.pdf)