# MCR100-8-23-3L

**KY** · Thyristors (SCR)/Modules · SOT-23-3L

MCR100-8-23-3L from KY, in a SOT-23-3L. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | K | passive | Cathode; rated IT(RMS) 0.8 A, VDRM/VRRM 800 V (MCR100-8), surge ITSM 11 A (tp=10 ms, F=50 Hz), VTM ≤1.7 V at IT=1.2 A. |
| 2 | A | passive | Anode; rated IT(RMS) 0.8 A, VDRM/VRRM 800 V (MCR100-8), holding current IH ≤4 mA, latching current IL ≤6 mA. |
| 3 | G | input | Gate (sensitive); trigger voltage VGT ≤0.8 V at VD=12 V / IT=0.1 A, trigger current IGT ≤200 µA, average gate power dissipation PG(AV) 0.1 W at Tj=125 °C. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | KY |
| Package | SOT-23-3L |
| Category | Transistors/Thyristors |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `MCR100-8-23-3L`
- Footprint: `Package_TO_SOT_SMD:SOT-23-3`
- 3D model: SOT-23-3L (KiCad packages3D, STEP)
- 3D model files: `mcr100-8-23-3l-etched.step` / `mcr100-8-23-3l-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mcr100-8-23-3l.step` / `mcr100-8-23-3l.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [KY datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588943992419725312) (7 pp, sha256 `2ac9070db33a1bc8`, retrieved 2026-09-17, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-sonnet-4-6` (text+vision), consensus `claude-opus-4-7` (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/mcr100-8-23-3l-datasheet.pdf)