# MMBTSA1015

**CBI** · Bipolar (BJT) · SOT-23

MMBTSA1015 from CBI, in a SOT-23. 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 | passive | Base terminal of the PNP transistor, with base current rated to a maximum of -IB 50 mA per the absolute maximum ratings. |
| 2 | Emitter | passive | Emitter terminal of the PNP transistor, with emitter-base voltage limited to -VEBO 5 V per the absolute maximum ratings. |
| 3 | Collector | passive | Collector terminal of the PNP transistor, with collector current limited to -IC 150 mA and collector-emitter voltage to -VCEO 50 V per the absolute maximum ratings. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | CBI |
| Package | SOT-23 |
| 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 | -VCBO |  |  | 50 | V |  | 1 |
| Collector Emitter Voltage | -VCEO |  |  | 50 | V |  | 1 |
| Emitter Base Voltage | -VEBO |  |  | 5 | V |  | 1 |
| Collector Current | -IC |  |  | 150 | mA |  | 1 |
| Base Current | -IB |  |  | 50 | mA |  | 1 |
| Power Dissipation | Ptot |  |  | 200 | mW |  | 1 |
| Junction Temperature | Tj |  |  | 150 | °C |  | 1 |
| Storage Temperature Range | TS | -65 |  | 150 | °C |  | 1 |
| DC Current Gain, Group O | hFE | 70 |  | 140 |  | at -VCE = 6 V, -IC = 2 mA | 1 |
| DC Current Gain, Group Y | hFE | 120 |  | 240 |  | at -VCE = 6 V, -IC = 2 mA | 1 |
| DC Current Gain, Group G | hFE | 200 |  | 400 |  | at -VCE = 6 V, -IC = 2 mA | 1 |
| DC Current Gain | hFE | 25 |  |  |  | at -VCE = 6 V, -IC = 150 mA | 1 |
| Collector Base Cutoff Current | -ICBO |  |  | 0.1 | µA | at -VCB = 50 V | 1 |
| Emitter Base Cutoff Current | -IEBO |  |  | 0.1 | µA | at -VEB = 5 V | 1 |
| Collector Base Breakdown Voltage | -V(BR)CBO | 50 |  |  | V | at -IC = 100 µA | 1 |
| Collector Emitter Breakdown Voltage | -V(BR)CEO | 50 |  |  | V | at -IC = 10 mA | 1 |
| Emitter Base Breakdown Voltage | -V(BR)EBO | 5 |  |  | V | at -IE = 10 µA | 1 |
| Collector Emitter Saturation Voltage | VCE(sat) |  |  | 0.3 | V | at -IC = 100 mA, -IB = 10 mA | 1 |
| Base Emitter Saturation Voltage | VBE(sat) |  |  | 1.1 | V | at -IC = 100 mA, -IB = 10 mA | 1 |
| Gain Bandwidth Product | fT | 80 |  |  | MHz | at -VCE = 10 V, -IC = 1 mA | 1 |
| Output Capacitance | COB |  |  | 7 | pF | at -VCB = 10 V, f = 1 MHz | 1 |

## Materials and finish

As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).

| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| housing | Abs |  | 1.Base 2.Emitter 3.Collector SOT-23 Plastic Package Absolute Maximum Ratings (Ta = 25 O | 1 |

## CAD (KiCad official)

- Symbol: `MMBTSA1015`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `mmbtsa1015-etched.step` / `mmbtsa1015-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mmbtsa1015.step` / `mmbtsa1015.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [CBI datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590917251283566592) (3 pp, sha256 `40a34fd4e54b357d`, retrieved 2026-10-17, 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/mmbtsa1015-datasheet.pdf)