# 2SB834

**Changjiang Electronics Tech (CJ)** · Bipolar Transistors - BJT · TO-220-3L

2SB834 from Changjiang Electronics Tech (CJ), in a TO-220-3L. 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 of the PNP transistor; drive with IB=-0.3A for VCE(sat) max -1V at IC=-3A, with VEBO limit of -7V. |
| 2 | COLLECTOR | passive | Collector of the PNP transistor; VCBO and VCEO are -60V and continuous collector current is -3A. |
| 3 | EMITTER | passive | Emitter of the PNP transistor; emitter-base breakdown voltage V(BR)EBO is -7V min at IE=-1mA. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Changjiang Electronics Tech (CJ) |
| Package | TO-220-3L |
| 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 Voltage | VCBO | -60 |  |  | V | Ta=25℃ | 1 |
| Collector-Emitter Voltage | VCEO | -60 |  |  | V | Ta=25℃ | 1 |
| Emitter-Base Voltage | VEBO | -7 |  |  | V | Ta=25℃ | 1 |
| Collector Current -Continuous | IC | -3 |  |  | A | Ta=25℃ | 1 |
| Collector Power Dissipation | PC |  |  | 1.5 | W | Ta=25℃ | 1 |
| Junction Temperature | TJ |  |  | 150 | ℃ | Ta=25℃ | 1 |
| Storage Temperature | Tstg | -55 |  | 150 | ℃ |  | 1 |
| Collector-base breakdown voltage | V(BR)CBO | -60 |  |  | V | IC=-1mA,IE=0 | 1 |
| Collector-emitter breakdown voltage | V(BR)CEO | -60 |  |  | V | IC =-50mA,IB=0 | 1 |
| Emitter-base breakdown voltage | V(BR)EBO | -7 |  |  | V | IE=-1mA,IC=0 | 1 |
| Collector cut-off current | ICBO |  |  | -100 | μA | VCB=-60V,IE=0 | 1 |
| Emitter cut-off current | IEBO |  |  | -100 | μA | VEB=-7V,IC=0 | 1 |
| DC current gain hFE(1) | hFE(1) | 60 |  | 200 |  | VCE=-5V,IC=-500mA | 1 |
| DC current gain hFE(2) | hFE(2) | 20 |  |  |  | VCE=-5V,IC=-3A | 1 |
| Collector-emitter saturation voltage | VCE(sat) |  |  | -1 | V | IC=-3A,IB=-0.3A | 1 |
| Base-emitter voltage | VBE |  |  | -1 | V | VCE=-5V,IC=-500mA | 1 |
| Transition frequency | fT |  | 9 |  | MHz | VCE=-5V,IC=-500mA, f=1MHz | 1 |
| Turn-on Time | ton |  |  | 0.4 | μs | VCC=-30V,Ic=-2A, IB1=IB2=-0.2A | 1 |
| Storage Time | tstg |  |  | 1.7 | μs | VCC=-30V,Ic=-2A, IB1=IB2=-0.2A | 1 |
| Turn-off Time | toff |  |  | 0.5 | μs | VCC=-30V,Ic=-2A, IB1=IB2=-0.2A | 1 |

## CAD (KiCad official)

- Symbol: `2SB834`
- Footprint: `Package_TO_SOT_THT:TO-220-3_Vertical`
- 3D model: TO-220-3L (KiCad packages3D, STEP)
- 3D model files: `2sb834-etched.step` / `2sb834-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `2sb834.step` / `2sb834.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Changjiang Electronics Tech (CJ) datasheet](docs/2sb834-datasheet.pdf) (3 pp, sha256 `30c0c8c4ea092fb9`, retrieved 2026-10-27, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-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/2sb834-datasheet.pdf)