# 2SAR523MT2L

**ROHM Semicon** · Bipolar (BJT) · SOT-723

2SAR523MT2L from ROHM Semicon, in a SOT-723. 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 | input | Base terminal of the PNP transistor; emitter-base voltage VEBO is limited to -5 V. |
| 2 | Emitter | passive | Emitter terminal of the PNP transistor; collector current IC is rated -100 mA (ICP -200 mA at Pw=10 ms single pulse). |
| 3 | Collector | passive | Collector terminal of the PNP transistor; VCEO and VCBO are both rated -50 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | ROHM Semicon |
| Package | SOT-723 |
| 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 |  | 2 |
| Collector-emitter voltage | VCEO |  |  | -50 | V |  | 2 |
| Emitter-base voltage | VEBO |  |  | -5 | V |  | 2 |
| Collector current | IC |  |  | -100 | mA |  | 2 |
| Collector current (peak) | ICP |  |  | -200 | mA | Pw=10ms Single Pulse | 2 |
| Power dissipation (2SAR523M) | PD |  |  | 150 | mW | Each terminal mounted on a reference land | 2 |
| Junction temperature | Tj |  |  | 150 | ℃ |  | 2 |
| Range of storage temperature | Tstg | -55 |  | 150 | ℃ |  | 2 |
| Collector-base breakdown voltage | BVCBO | -50 |  |  | V | IC = -50μA | 2 |
| Collector-emitter breakdown voltage | BVCEO | -50 |  |  | V | IC = -1mA | 2 |
| Emitter-base breakdown voltage | BVEBO | -5 |  |  | V | IE = -50μA | 2 |
| Collector cut-off current | ICBO |  |  | -100 | nA | VCB = -50V | 2 |
| Emitter cut-off current | IEBO |  |  | -100 | nA | VEB = -5V | 2 |
| Collector-emitter saturation voltage | VCE(sat) |  | -150 | -400 | mV | IC = -50mA, IB = -5mA | 2 |
| DC current gain | hFE | 120 |  | 560 | - | VCE = -6V, IC = -1mA | 2 |

## CAD (KiCad official)

- Symbol: `2SAR523MT2L`
- Footprint: `Package_TO_SOT_SMD:SOT-723`
- 3D model: SOT-723, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.5 mm nominal SOT-723 height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
- 3D model files: `2sar523mt2l-etched.step` / `2sar523mt2l-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `2sar523mt2l.step` / `2sar523mt2l.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [ROHM Semicon datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588916629707505664) (11 pp, sha256 `f76845f389d9f306`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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/2sar523mt2l-datasheet.pdf)