# 2SB1188-Q-TP

**MCC(Micro Commercial Components)** · Bipolar (BJT) · SOT-89

2SB1188-Q-TP from MCC(Micro Commercial Components), in a SOT-89. 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 | passive | Base terminal of the PNP transistor; the datasheet gives an emitter-base voltage rating VEBO of -5.0 V. |
| 2 | C | passive | Collector terminal; the datasheet gives a maximum collector current ICM of -2.0 A and a collector-emitter voltage VCEO of -32 V. |
| 3 | E | passive | Emitter terminal; the datasheet gives an emitter-base breakdown voltage V(BR)EBO of -5.0 V minimum. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | MCC(Micro Commercial Components) |
| Package | SOT-89 |
| 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 |
|---|---|---|---|---|---|---|---|
| Emitter-Base Breakdown Voltage | V(BR)EBO | -5 |  |  | V | IE=-50µA, IC=0 | 2 |
| Collector-Emitter Breakdown Voltage | V(BR)CEO | -32 |  |  | V | IC=-1mA, IB=0 | 2 |
| Collector-Base Breakdown Voltage | V(BR)CBO | -40 |  |  | V | IC=-50µA, IE=0 | 2 |
| Collector-Base Cutoff Current | ICBO |  |  | -1 | µA | VCB=-20V, IE=0 | 2 |
| Emitter-Base Cutoff Current | IEBO |  |  | -1 | µA | VEB=-4.0V, IC=0 | 2 |
| DC Current Gain | hFE | 82 |  | 390 |  | VCE=-3.0V, IC=-0.5A | 2 |
| DC Current Gain Q rank range | hFE | 120 |  | 270 |  |  | 1 |
| Collector-Emitter Saturation Voltage | VCE(sat) |  |  | -0.8 | V | IC=-2A, IB=-0.2A | 2 |
| Collector Power Dissipation | PC |  |  | 500 | mW |  | 1 |
| Maximum Collector Current | ICM |  |  | -2 | A |  | 1 |
| Collector-Emitter Voltage | VCEO |  |  | -32 | V |  | 1 |
| Collector-Base Voltage | VCBO |  |  | -40 | V |  | 1 |
| Emitter-Base Voltage | VEBO |  |  | -5 | V |  | 1 |
| Operating Junction Temperature Range |  | -55 |  | 150 | ℃ |  | 1 |
| Storage Temperature Range |  | -55 |  | 150 | ℃ |  | 1 |
| Thermal Resistance Junction to Ambient |  |  | 250 |  | ℃/W | Junction to Ambient | 1 |
| Collector Output Capacitance | Cob |  | 65 |  | pF | VCB=-10V, IE=0, f=1.0MHz | 2 |
| Transition Frequency | fT |  | 80 |  | MHz | VCE=-5.0V, IC=-0.5A, f=30MHz | 2 |

## CAD (KiCad official)

- Symbol: `2SB1188-Q-TP`
- Footprint: `Package_TO_SOT_SMD:SOT-89-3`
- 3D model: SOT-89 (KiCad packages3D, STEP)
- 3D model files: `2sb1188-q-tp-etched.step` / `2sb1188-q-tp-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `2sb1188-q-tp.step` / `2sb1188-q-tp.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [MCC(Micro Commercial Components) datasheet](docs/2sb1188-q-tp-datasheet.pdf) (4 pp, sha256 `8fd58a5a893f902f`, retrieved 2026-10-27, 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/2sb1188-q-tp-datasheet.pdf)