# BFN 26 E6327

**Infineon Technologies** · Bipolar (BJT) · SOT-23

BFN 26 E6327 from Infineon Technologies, 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 | B | passive | Base terminal; the base current IB is rated to 100 mA and the peak base current IBM to 200 mA. |
| 2 | E | passive | Emitter terminal; the emitter-base voltage VEBO is rated to 6 V. |
| 3 | C | passive | Collector terminal; the collector-emitter voltage VCEO is rated to 300 V for BFN26 with collector current IC of 200 mA (peak 500 mA). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Infineon Technologies |
| 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 (BFN26) | V(BR)CEO | 300 |  |  | V | IC = 1 mA, IB = 0 | 2 |
| Collector-base breakdown voltage (BFN26) | V(BR)CBO | 300 |  |  | V | IC = 100 µA, IE = 0 | 2 |
| Emitter-base breakdown voltage | V(BR)EBO | 6 |  |  | V | IE = 100 µA, IC = 0 | 2 |
| Collector-base cutoff current (BFN26) | ICBO |  |  | 0.1 | µA | VCB = 250 V, IE = 0, BFN26 | 2 |
| Collector-base cutoff current at 150 °C (BFN26) | ICBO |  |  | 20 | µA | VCB = 250 V, IE = 0, TA = 150 °C, BFN26 | 2 |
| Emitter-base cutoff current | IEBO |  |  | 100 | nA | VEB = 5 V, IC = 0 | 2 |
| DC current gain | hFE | 25 |  |  |  | IC = 1 mA, VCE = 10 V | 2 |
| DC current gain | hFE | 40 |  |  |  | IC = 10 mA, VCE = 10 V | 2 |
| DC current gain (BFN26) | hFE | 30 |  |  |  | IC = 30 mA, VCE = 10 V, BFN26 | 2 |
| Collector-emitter saturation voltage (BFN26) | VCEsat |  |  | 0.5 | V | IC = 20 mA, IB = 2 mA, BFN26 | 2 |
| Base-emitter saturation voltage | VBEsat |  |  | 0.9 | V | IC = 20 mA, IB = 2 mA | 2 |
| Collector-emitter voltage (BFN26) | VCEO |  |  | 300 | V | BFN26 | 1 |
| Collector-base voltage (BFN26) | VCBO |  |  | 300 | V | BFN26 | 1 |
| Emitter-base voltage | VEBO |  |  | 6 | V |  | 1 |
| Collector current | IC |  |  | 200 | mA |  | 1 |
| Peak collector current | ICM |  |  | 500 | mA |  | 1 |
| Base current | IB |  |  | 100 | mA |  | 1 |
| Peak base current | IBM |  |  | 200 | mA |  | 1 |
| Total power dissipation | Ptot |  |  | 360 | mW | TS ≤ 74 °C | 1 |
| Junction temperature | Tj |  |  | 150 | °C |  | 1 |
| Storage temperature | Tstg | -65 |  | 150 | °C |  | 1 |
| Junction - soldering point thermal resistance | RthJS |  |  | 210 | K/W |  | 2 |

## CAD (KiCad official)

- Symbol: `BFN 26 E6327`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `bfn-26-e6327-etched.step` / `bfn-26-e6327-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bfn-26-e6327.step` / `bfn-26-e6327.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Infineon Technologies datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588912748575272960) (7 pp, sha256 `801adf3d2ceaefd4`, 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/bfn-26-e6327-datasheet.pdf)