# 2SD2114KT146V

**ROHM Semicon** · Bipolar (BJT) · TO-236-3(SOT-23-3)

2SD2114KT146V from ROHM Semicon, in a TO-236-3(SOT-23-3). 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 | Emitter | passive | Emitter terminal of the NPN transistor; the datasheet gives a minimum emitter-base voltage VEBO of 12 V. |
| 2 | Base | passive | Base terminal; the datasheet gives a typical VCE(sat) of 0.18 V at IC/IB = 500 mA/20 mA. |
| 3 | Collector | passive | Collector terminal; absolute maximum ratings are VCBO 25 V, VCEO 20 V and DC collector current IC 0.5 A (1 A pulse, single pulse Pw = 100 ms). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | ROHM Semicon |
| Package | TO-236-3(SOT-23-3) |
| 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-base breakdown voltage | BVCBO | 25 |  |  | V | IC=10µA | 2 |
| Collector-emitter breakdown voltage | BVCEO | 20 |  |  | V | IC=1mA | 2 |
| Emitter-base breakdown voltage | BVEBO | 12 |  |  | V | IE=10µA | 2 |
| Collector cutoff current | ICBO |  |  | 0.5 | µA | VCB=20V | 2 |
| Emitter cutoff current | IEBO |  |  | 0.5 | µA | VEB=10V | 2 |
| DC current transfer ratio (hFE rank V, 820 to 1800) | hFE | 820 |  | 1800 |  | VCE=3V, IC=10mA | 2 |
| Collector-emitter saturation voltage | VCE(sat) |  | 0.18 | 0.4 | V | IC/IB=500mA/20mA | 2 |
| Collector-base voltage | VCBO |  |  | 25 | V |  | 1 |
| Collector-emitter voltage | VCEO |  |  | 20 | V |  | 1 |
| Emitter-base voltage | VEBO |  |  | 12 | V |  | 1 |
| Collector current (DC) | IC |  |  | 0.5 | A(DC) |  | 1 |
| Collector current (pulse) | IC |  |  | 1 | A(Pulse) | Single pulse Pw=100ms | 1 |
| Collector power dissipation | PC |  |  | 0.2 | W |  | 1 |
| Junction temperature | Tj |  |  | 150 | °C |  | 1 |
| Storage temperature | Tstg | -55 |  | 150 | °C |  | 1 |

## CAD (KiCad official)

- Symbol: `2SD2114KT146V`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: TO-236-3(SOT-23-3) (KiCad packages3D, STEP)
- 3D model files: `2sd2114kt146v-etched.step` / `2sd2114kt146v-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `2sd2114kt146v.step` / `2sd2114kt146v.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [ROHM Semicon datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588885056446746624) (5 pp, sha256 `5b731524b3daad84`, retrieved 2026-10-13, 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/2sd2114kt146v-datasheet.pdf)