# 2SCR523MT2L

**ROHM Semicon** · Bipolar Transistors - BJT · SOT-723

2SCR523MT2L 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 | B | input | Base of the NPN transistor; the datasheet lists it as pin (1) with no separate base current limit beyond IC = 100 mA (ICP 200 mA pulsed). |
| 2 | E | passive | Emitter of the NPN transistor, pin (2) in the inner circuit; emitter-base voltage VEBO is rated 5 V maximum. |
| 3 | C | passive | Collector of the NPN transistor, pin (3); VCEO is 50 V, VCBO is 50 V and IC is 100 mA maximum. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | ROHM Semicon |
| Package | SOT-723 |
| 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 voltage | VCBO |  |  | 50 | V | Ta = 25°C | 2 |
| Collector-emitter voltage | VCEO |  |  | 50 | V | Ta = 25°C | 2 |
| Emitter-base voltage | VEBO |  |  | 5 | V | Ta = 25°C | 2 |
| Collector current | IC |  |  | 100 | mA | Ta = 25°C | 2 |
| Collector current (pulse) | ICP |  |  | 200 | mA | Pw=10ms Single Pulse | 2 |
| Power dissipation (2SCR523M) | PD |  |  | 150 | mW | Ta = 25°C; *2 Each terminal mounted on a reference land. | 2 |
| Junction temperature | Tj |  |  | 150 | ℃ | Ta = 25°C | 2 |
| Range of storage temperature | Tstg | -55 |  | 150 | ℃ | Ta = 25°C | 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) |  | 100 | 300 | mV | IC = 50mA, IB = 5mA | 2 |
| DC current gain | hFE | 120 |  | 560 | - | VCE = 6V, IC = 1mA | 2 |

## CAD (KiCad official)

- Symbol: `2SCR523MT2L`
- 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: `2scr523mt2l-etched.step` / `2scr523mt2l-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `2scr523mt2l.step` / `2scr523mt2l.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [ROHM Semicon datasheet](docs/2scr523mt2l-datasheet.pdf) (11 pp, sha256 `4080c7a1dd48d193`, retrieved 2026-10-30, tier: manufacturer)
- **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/2scr523mt2l-datasheet.pdf)