# 2SC4117-GR.LF

**TOSHIBA** · Bipolar (BJT) · SOT-323

2SC4117-GR.LF from TOSHIBA, 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 | B | input | Base; emitter-base voltage VEBO max 5 V and base current IB max 20 mA. |
| 2 | E | passive | Emitter terminal of the NPN transistor. |
| 3 | C | passive | Collector; VCEO = 120 V, VCBO = 120 V, collector current IC max 100 mA. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TOSHIBA |
| Package | SOT-323 |
| 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 cut-off current | ICBO |  |  | 0.1 | µA | VCB = 120 V, IE = 0 | 1 |
| Emitter cut-off current | IEBO |  |  | 0.1 | µA | VEB = 5 V, IC = 0 | 1 |
| DC current gain (GR classification) | hFE | 200 |  | 400 |  | VCE = 6 V, IC = 2 mA | 1 |
| Collector-emitter saturation voltage | VCE (sat) |  |  | 0.3 | V | IC = 10 mA, IB = 1 mA | 1 |
| Noise figure | NF |  | 1 | 10 | dB | VCE = 6 V, IC = 0.1 mA, f = 1 kHz, RG = 10 kΩ | 1 |
| Collector-base voltage | VCBO |  |  | 120 | V | Ta = 25°C | 1 |
| Collector-emitter voltage | VCEO |  |  | 120 | V | Ta = 25°C | 1 |
| Emitter-base voltage | VEBO |  |  | 5 | V | Ta = 25°C | 1 |
| Collector current | IC |  |  | 100 | mA | Ta = 25°C | 1 |
| Base current | IB |  |  | 20 | mA | Ta = 25°C | 1 |
| Collector power dissipation | PC |  |  | 100 | mW | Ta = 25°C | 1 |
| Junction temperature | Tj |  |  | 125 | °C | Ta = 25°C | 1 |
| Storage temperature range | Tstg | -55 |  | 125 | °C |  | 1 |

## Materials and finish

As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).

| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| housing | PC |  | Base current IB 20 mA Collector power dissipation PC 100 mW | 1 |

## CAD (KiCad official)

- Symbol: `2SC4117-GR.LF`
- Footprint: `Package_TO_SOT_SMD:SOT-323_SC-70`
- 3D model: SOT-323 (KiCad packages3D, STEP)
- 3D model files: `2sc4117-gr-lf-etched.step` / `2sc4117-gr-lf-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `2sc4117-gr-lf.step` / `2sc4117-gr-lf.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [TOSHIBA datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588904158728761344) (4 pp, sha256 `9a3236ec1952c1bf`, retrieved 2026-10-18, 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/2sc4117-gr-lf-datasheet.pdf)