# 2SD965AG-R-AB3-R

**UTC(Unisonic Tech)** · Bipolar Transistors - BJT · SOT-89

2SD965AG-R-AB3-R from UTC(Unisonic Tech), 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 | input | Base terminal of the NPN transistor; the datasheet gives an emitter-base voltage VEBO of 7 V in the absolute maximum ratings. |
| 2 | C | passive | Collector terminal; the datasheet limits collector current IC to 5 A and gives a SOT-89 collector dissipation PC of 500 mW. |
| 3 | E | passive | Emitter terminal; the datasheet gives collector-emitter voltage VCEO of 20 V for 2SD965 and 30 V for 2SD965A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | UTC(Unisonic Tech) |
| Package | SOT-89 |
| 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 Breakdown Voltage | BVCBO | 40 |  |  | V | IC=100μA, IE=0 | 3 |
| Collector-Emitter Breakdown Voltage (2SD965A) | BVCEO | 30 |  |  | V | IC=1mA, IB=0 | 3 |
| Emitter-Base Breakdown Voltage | BVEBO | 7 |  |  | V | IE=10μA, IC=0 | 3 |
| Collector Cut-off Current | ICBO |  |  | 100 | nA | VCB=10V, IE=0 | 3 |
| Emitter Cut-off Current | IEBO |  |  | 100 | nA | VEB=7V, IC=0 | 3 |
| DC Current Gain 1 | hFE1 | 200 |  |  |  | VCE=2V, IC=1mA | 3 |
| DC Current Gain 2 (rank R) | hFE2 | 340 |  | 600 |  | VCE=2V, IC=0.5A | 3 |
| DC Current Gain 2 (all ranks) | hFE2 | 230 |  | 800 |  | VCE=2V, IC=0.5A | 3 |
| DC Current Gain 3 | hFE3 | 150 |  |  |  | VCE=2V, IC=2A | 3 |
| Collector-Emitter Saturation Voltage | VCE(SAT) |  |  | 1 | V | IC=3A, IB= 0.1A | 3 |
| Current Gain Bandwidth Product | fT | 150 |  |  | MHz | VCE=6V, IC=50mA | 3 |
| Output Capacitance | Cob |  |  | 50 | pF | VCB=20V, IE=0, f=1MHz | 3 |
| Collector-Base Voltage | VCBO |  |  | 40 | V | TA=25°C | 3 |
| Collector-Emitter Voltage (2SD965A) | VCEO |  |  | 30 | V | TA=25°C | 3 |
| Emitter-Base Voltage | VEBO |  |  | 7 | V | TA=25°C | 3 |
| Collector Dissipation (SOT-89) | PC |  |  | 500 | mW | TA=25°C | 3 |
| Collector Current | IC |  |  | 5 | A | TA=25°C | 3 |
| Junction Temperature | TJ |  |  | 150 | °C | TA=25°C | 3 |
| Storage Temperature | TSTG | -65 |  | 150 | °C | TA=25°C | 3 |

## CAD (KiCad official)

- Symbol: `2SD965AG-R-AB3-R`
- Footprint: `Package_TO_SOT_SMD:SOT-89-3`
- 3D model: SOT-89 (KiCad packages3D, STEP)
- 3D model files: `2sd965ag-r-ab3-r-etched.step` / `2sd965ag-r-ab3-r-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `2sd965ag-r-ab3-r.step` / `2sd965ag-r-ab3-r.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [UTC(Unisonic Tech) datasheet](docs/2sd965ag-r-ab3-r-datasheet.pdf) (5 pp, sha256 `ea580b848da96bf7`, retrieved 2026-10-22, tier: manufacturer)
- **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/2sd965ag-r-ab3-r-datasheet.pdf)