# 2SB772L-P-TN3-R

**UTC Unisonic Tech** · Bipolar (BJT) · TO-252

2SB772L-P-TN3-R from UTC Unisonic Tech, in a TO-252. 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; the datasheet limits base current to IB = -0.6 A (absolute maximum DC). |
| 2 | C | passive | Collector terminal; the datasheet limits DC collector current to IC = -3 A (pulse -7 A) with VCBO = -40 V and VCEO = -30 V maximum. |
| 3 | E | passive | Emitter terminal; the datasheet limits emitter-base voltage to VEBO = -7 V maximum. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | UTC Unisonic Tech |
| Package | TO-252 |
| 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 | -40 |  |  | V | TA=25°C, unless otherwise specified | 3 |
| Collector-Emitter Voltage | VCEO | -30 |  |  | V | TA=25°C, unless otherwise specified | 3 |
| Emitter-Base Voltage | VEBO | -7 |  |  | V | TA=25°C, unless otherwise specified | 3 |
| Collector Current DC | IC | -3 |  |  | A | TA=25°C, unless otherwise specified | 3 |
| Collector Current Pulse | ICP | -7 |  |  | A | TA=25°C, unless otherwise specified | 3 |
| Base Current | IB | -0.6 |  |  | A | TA=25°C, unless otherwise specified | 3 |
| Collector Dissipation (TO-251/TO-252) | PC |  |  | 1 | W | TO-251/TO-252 package; TA=25°C, unless otherwise specified | 3 |
| Junction Temperature | TJ |  |  | 150 | °C | TA=25°C, unless otherwise specified | 3 |
| Storage Temperature | TSTG | -55 |  | 150 | °C |  | 3 |
| Collector-Base Breakdown Voltage | BVCBO | -40 |  |  | V | IC=-100μA, IE=0 | 3 |
| Collector-Emitter Breakdown Voltage | BVCEO | -30 |  |  | V | IC=-1mA, IB=0 | 3 |
| Emitter-Base Breakdown Voltage | BVEBO | -7 |  |  | V | IE=-100μA, IC=0 | 3 |
| Collector Cut-Off Current | ICBO |  |  | -1000 | nA | VCB=-30V, IE=0 | 3 |
| Emitter Cut-Off Current | IEBO |  |  | -1000 | nA | VEB=-5V, IC=0 | 3 |
| DC Current Gain (hFE1) | hFE1 | 30 |  | 200 |  | VCE=-2V, IC=-20mA | 3 |
| DC Current Gain, rank P (hFE2) | hFE2 | 160 |  | 320 |  | VCE=-2V, IC=-1A; rank P per classification table | 3 |
| Collector-Emitter Saturation Voltage | VCE(SAT) |  | -0.3 | -0.5 | V | IC=-2A, IB=-0.2A | 3 |
| Base-Emitter Saturation Voltage | VBE(SAT) |  | -1 | -2 | V | IC=-2A, IB=-0.2A | 3 |
| Current Gain Bandwidth Product | fT | 80 |  |  | MHz | VCE=-5V, IC=-0.1A | 3 |
| Output Capacitance | COB |  | 45 |  | pF | VCB=-10V, IE=0, f=1MHz | 3 |
| Junction to Case (TO-251/TO-252) | θJC |  | 12.5 |  | °C/W | TO-251/TO-252 package | 3 |

## CAD (KiCad official)

- Symbol: `2SB772L-P-TN3-R`
- Footprint: `Package_TO_SOT_SMD:TO-252-2`
- 3D model: TO-252 (KiCad packages3D, STEP)
- 3D model files: `2sb772l-p-tn3-r-etched.step` / `2sb772l-p-tn3-r-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `2sb772l-p-tn3-r.step` / `2sb772l-p-tn3-r.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [UTC Unisonic Tech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603169951809220608) (5 pp, sha256 `9bc8974c68cd8ab8`, 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/2sb772l-p-tn3-r-datasheet.pdf)