# 2SD1767

**Changjiang Electronics Tech (CJ)** · Bipolar Transistors - BJT · SOT-89-3L

2SD1767 from Changjiang Electronics Tech (CJ), in a SOT-89-3L. 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 terminal of the NPN transistor, whose emitter-base breakdown voltage V(BR)EBO is rated at 5 V minimum with IE=50µA. |
| 2 | COLLECTOR | passive | Collector terminal of the NPN transistor, rated for a collector-base voltage VCBO of 80 V and a collector current IC of 700 mA. |
| 3 | EMITTER | passive | Emitter terminal of the NPN transistor, rated for an emitter-base voltage VEBO of 5 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Changjiang Electronics Tech (CJ) |
| Package | SOT-89-3L |
| Category | Transistors |
| 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 | V(BR)CBO | 80 |  |  | V | IC=50µA,IE=0 | 1 |
| Collector-emitter breakdown voltage | V(BR)CEO | 80 |  |  | V | IC=2mA,IB=0 | 1 |
| Emitter-base breakdown voltage | V(BR)EBO | 5 |  |  | V | IE=50µA,IC=0 | 1 |
| Collector cut-off current | ICBO |  |  | 0.5 | µA | VCB=50V,IE=0 | 1 |
| Emitter cut-off current | IEBO |  |  | 0.5 | µA | VEB=4V,IC=0 | 1 |
| DC current gain | hFE | 82 |  | 390 |  | VCE=3V, IC=100mA | 1 |
| Collector-emitter saturation voltage | VCE(sat) |  |  | 0.4 | V | IC=500mA,IB=50mA | 1 |
| Transition frequency | fT | 120 |  |  | MHz | VCE=10V,IC=50mA, f=100MHz | 1 |
| Collector output capacitance | Cob |  |  | 10 | pF | VCB=10V, IE=0, f=1MHz | 1 |
| Collector-Base Voltage | VCBO |  |  | 80 | V |  | 1 |
| Collector-Emitter Voltage | VCEO |  |  | 80 | V |  | 1 |
| Emitter-Base Voltage | VEBO |  |  | 5 | V |  | 1 |
| Collector Current | IC |  |  | 700 | mA |  | 1 |
| Collector Power Dissipation | PC |  |  | 500 | mW |  | 1 |
| Junction Temperature | Tj |  |  | 150 | ℃ |  | 1 |
| Storage Temperature | Tstg | -55 |  | 150 | ℃ |  | 1 |
| Thermal Resistance From Junction To Ambient | RθJA |  |  | 250 | ℃/W |  | 1 |

## CAD (KiCad official)

- Symbol: `2SD1767`
- Footprint: `Package_TO_SOT_SMD:SOT-89-3`
- 3D model: SOT-89-3L (KiCad packages3D, STEP)
- 3D model files: `2sd1767-etched.step` / `2sd1767-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `2sd1767.step` / `2sd1767.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Changjiang Electronics Tech (CJ) datasheet](docs/2sd1767-datasheet.pdf) (2 pp, sha256 `ddb8bf611f824273`, retrieved 2026-10-27, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `off` (skipped (clean text read)), 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/2sd1767-datasheet.pdf)