# 2SC1623 L5

**Guangdong Hottech** · Bipolar (BJT) · SOT-23

2SC1623 L5 from Guangdong Hottech, 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 | input | Base; the datasheet gives VEBO of 5 V, IC of 100 mA and hFE of 135-270 for the L5 rank at VCE=6V, IC=1mA. |
| 2 | E | passive | Emitter of the NPN transistor; the datasheet gives VEBO of 5 V maximum and a 150 °C junction temperature. |
| 3 | C | passive | Collector; the datasheet gives VCBO of 60 V, VCEO of 50 V and IC of 100 mA maximum. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Guangdong Hottech |
| 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 |
|---|---|---|---|---|---|---|---|
| DC current gain (rank L5) | hFE | 135 |  | 270 |  |  | 1 |
| Collector-base breakdown voltage | V(BR)CBO | 60 |  |  | V | IC=100uA，IE=0 | 1 |
| Collector-emitter breakdown voltage | V(BR)CEO | 50 |  |  | V | IC=1mA，IB=0 | 1 |
| Emitter-base breakdown voltage | V(BR)EBO | 5 |  |  | V | IE=100uA，IC=0 | 1 |
| Collector cut-off current | ICBO |  |  | 0.1 | uA | VCB=60V, IE=0 | 1 |
| Emitter cut-off current | IEBO |  |  | 0.1 | uA | VEB=5V, IC=0 | 1 |
| Collector-emitter saturation voltage | VCE(sat) |  |  | 0.3 | V | IC=100mA，IB=10mA | 1 |
| Base-emitter saturation voltage | VBE(sat) |  |  | 1 | V | IC=100mA，IB=10mA | 1 |
| Transition frequency | fT |  | 250 |  | MHz | VCE=6V, IC=10mA | 1 |
| Collector-base voltage | VCBO |  |  | 60 | V |  | 1 |
| Collector-emitter voltage | VCEO |  |  | 50 | V |  | 1 |
| Emitter-base voltage | VEBO |  |  | 5 | V |  | 1 |
| Collector current | IC |  |  | 100 | mA |  | 1 |
| Collector power dissipation | PC |  |  | 200 | mW |  | 1 |
| Junction temperature | TJ |  |  | 150 | °C |  | 1 |
| Storage temperature | TSTG | -55 |  | 150 | °C |  | 1 |
| Thermal resistance, junction to ambient | RθJA |  |  | 625 | °C/W |  | 1 |

## CAD (KiCad official)

- Symbol: `2SC1623 L5`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `2sc1623-l5-etched.step` / `2sc1623-l5-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `2sc1623-l5.step` / `2sc1623-l5.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Guangdong Hottech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588884345293844480) (4 pp, sha256 `c06c375a068dd5f1`, retrieved 2026-10-17, 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/2sc1623-l5-datasheet.pdf)