# KSP92BU

**onsemi** · Bipolar (BJT) · TO-92

KSP92BU from onsemi, in a TO-92. 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 PNP transistor, with the emitter-base breakdown voltage specified at -5 V minimum (IE = -100 µA, IC = 0). |
| 2 | Base | passive | Base terminal of the PNP transistor; the datasheet limits the emitter-base voltage to -5 V absolute maximum and gives a base-emitter saturation voltage of -0.90 V max at IC = -20 mA, IB = -2 mA. |
| 3 | Collector | passive | Collector terminal of the PNP transistor; the absolute maximum collector current is -500 mA and collector-emitter voltage is -300 V for KSP92 (-200 V for KSP93). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | TO-92 |
| 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 Voltage (KSP92) | VCBO |  |  | -300 | V |  | 2 |
| Collector-Emitter Voltage (KSP92) | VCEO |  |  | -300 | V |  | 2 |
| Emitter-Base Voltage | VEBO |  |  | -5 | V |  | 2 |
| Collector Current | IC |  |  | -500 | mA |  | 2 |
| Collector Power Dissipation | PC |  |  | 625 | mW | Ta=25°C | 2 |
| Collector Power Dissipation | PC |  |  | 1.5 | W | TC=25°C | 2 |
| Junction Temperature | TJ |  |  | 150 | °C |  | 2 |
| Storage Temperature | TSTG | -55 |  | 150 | °C |  | 2 |
| Collector-Base Breakdown Voltage (KSP92) | BVCBO | -300 |  |  | V | IC= -100µA, IE=0 | 2 |
| Collector-Emitter Breakdown Voltage (KSP92) | BVCEO | -300 |  |  | V | IC= -1mA, IB=0 | 2 |
| Emitter-Base Breakdown Voltage | BVEBO | -5 |  |  | V | IE= -100µA, IC=0 | 2 |
| Collector Cut-off Current (KSP92) | ICBO |  |  | -0.25 | µA | VCB= -200V, IE=0 | 2 |
| Emitter Cut-off Current | IEBO |  |  | -0.1 | µA | VEB= -3V, IC=0 | 2 |
| DC Current Gain | hFE | 25 |  |  |  | VCE= -10V, IC= -1mA | 2 |
| DC Current Gain | hFE | 40 |  |  |  | VCE= -10V, IC= -10mA | 2 |
| Collector-Emitter Saturation Voltage | VCE(sat) |  |  | -0.5 | V | IC= -20mA, IB= -2mA | 2 |
| Base-Emitter Saturation Voltage | VBE(sat) |  |  | -0.9 | V | IC= -20mA, IB= -2mA | 2 |
| Current Gain Bandwidth Product | fT | 50 |  |  | MHz | VCE= -20V, IC= -10mA, f=100MHz | 2 |
| Output Capacitance (KSP92) | Cob |  |  | 6 | pF | VCB= -20V, IE=0, f=1MHz | 2 |

## CAD (KiCad official)

- Symbol: `KSP92BU`
- Footprint: `Package_TO_SOT_THT:TO-92_Inline`
- 3D model: TO-92 (KiCad packages3D, STEP)
- 3D model files: `ksp92bu-etched.step` / `ksp92bu-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ksp92bu.step` / `ksp92bu.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [onsemi datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588891707534954496) (6 pp, sha256 `c15cf8009c8b1b49`, retrieved 2026-10-09, 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/ksp92bu-datasheet.pdf)