# MCR100-8-23

**FUXINSEMI** · TRIACs · SOT-23(TO-236)

MCR100-8-23 from FUXINSEMI, in a SOT-23(TO-236). 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 | K | passive | Cathode (K1) of the SCR; the datasheet rates RMS on-state current IT(RMS) at 0.8 A and non-repetitive surge ITSM at 8 A (full cycle, 50 Hz). |
| 2 | A | passive | Anode (A2) of the SCR; the datasheet gives VDRM and VRRM of 600 V and a forward on-state voltage VTM of 1.7 V max at ITM=1.2 A. |
| 3 | G | input | Gate (G3) trigger input; the datasheet gives IGT of 200 µA max and VGT of 0.8 V max at VD=12 V, with peak gate current IGM of 0.1 A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | FUXINSEMI |
| Package | SOT-23(TO-236) |
| Category | Triode/MOS Tube/Transistor |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `MCR100-8-23`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23(TO-236) (KiCad packages3D, STEP)
- 3D model files: `mcr100-8-23-etched.step` / `mcr100-8-23-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mcr100-8-23.step` / `mcr100-8-23.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [FUXINSEMI datasheet](docs/mcr100-8-23-datasheet.pdf) (4 pp, sha256 `c631f255ad981623`, retrieved 2026-10-22, 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/mcr100-8-23-datasheet.pdf)