# TIP32B

**Slkor(SLKORMICRO Elec.)** · Bipolar Transistors - BJT · TO-220

TIP32B from Slkor(SLKORMICRO Elec.), in a TO-220. 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 (PIN1 per the datasheet); the base current IB is rated at -1 A in the absolute maximum ratings. |
| 2 | Collector | passive | Collector terminal (PIN2 per the datasheet); for TIP32B the collector-emitter voltage VCEO is -80 V, DC collector current IC is -3 A, and pulsed collector current ICM is -5 A. |
| 3 | Emitter | passive | Emitter terminal (PIN3 per the datasheet); the emitter-base voltage VEBO is -5 V with open collector. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Slkor(SLKORMICRO Elec.) |
| Package | TO-220 |
| Category | Triode/MOS Tube/Transistor |
| 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-emitter sustaining voltage (TIP32B) | VCEO(SUS) | -80 |  |  | V | IC=-30mA; IB=0 | 2 |
| Collector-emitter saturation voltage | VCEsat |  |  | -1.2 | V | IC=-3A; IB=-0.375A | 2 |
| Base-emitter on voltage | VBE |  |  | -1.8 | V | IC=-3A; VCE=-4V | 2 |
| Collector cut-off current (TIP32B) | ICES |  |  | -0.2 | mA | TIP32B VCE=-80V; VEB=0 | 2 |
| Collector cut-off current (TIP32B) | ICEO |  |  | -0.3 | mA | TIP32B/32C VCE=-60V; IB=0 | 2 |
| Emitter cut-off current | IEBO |  |  | -1 | mA | VEB=-5V; IC=0 | 2 |
| DC current gain | hFE-1 | 25 |  |  |  | IC=-1A; VCE=-4V | 2 |
| DC current gain | hFE-2 | 10 |  | 50 |  | IC=-3A; VCE=-4V | 2 |
| Transition frequency | fT | 3 |  |  | MHz | IC=-0.5A; VCE=-10V | 2 |
| Collector-base voltage (TIP32B) | VCBO |  |  | -80 | V | Open emitter | 1 |
| Collector-emitter voltage (TIP32B) | VCEO |  |  | -80 | V | Open base | 1 |
| Emitter-base voltage | VEBO |  |  | -5 | V | Open collector | 1 |
| Collector current (DC) | IC |  |  | -3 | A |  | 1 |
| Collector current-Pulse | ICM |  |  | -5 | A |  | 1 |
| Base current | IB |  |  | -1 | A |  | 1 |
| Collector power dissipation | PC |  |  | 40 | W | TC=25 | 1 |
| Collector power dissipation | PC |  |  | 2 | W | Ta=25 | 1 |
| Junction temperature | Tj |  |  | 150 | °C |  | 1 |
| Storage temperature | Tstg | -65 |  | 150 | °C |  | 1 |

## CAD (KiCad official)

- Symbol: `TIP32B`
- Footprint: `Package_TO_SOT_THT:TO-220-3_Vertical`
- 3D model: TO-220 (KiCad packages3D, STEP)
- 3D model files: `tip32b-etched.step` / `tip32b-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tip32b.step` / `tip32b.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Slkor(SLKORMICRO Elec.) datasheet](docs/tip32b-datasheet.pdf) (4 pp, sha256 `19a1d6b5014d90c8`, retrieved 2026-10-30, 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/tip32b-datasheet.pdf)