# CS18N20A8R

**CRMICRO** · MOSFETs · TO-220AB

CS18N20A8R from CRMICRO, in a TO-220AB. 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 | G | input | Gate; controls the channel, with gate threshold voltage 2.0 to 4.0 V and absolute maximum gate-to-source voltage of ±30 V. |
| 2 | D | passive | Drain; rated for 200 V drain-to-source voltage and 18 A continuous drain current (72 A pulsed), also connected to the tab. |
| 3 | S | passive | Source; body diode continuous current rated 18 A and 72 A pulsed. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | CRMICRO |
| Package | TO-220AB |
| Category | Transistors/Thyristors |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `CS18N20A8R`
- Footprint: `Package_TO_SOT_THT:TO-220-3_Vertical`
- 3D model: TO-220AB (KiCad packages3D, STEP)
- 3D model files: `cs18n20a8r-etched.step` / `cs18n20a8r-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cs18n20a8r.step` / `cs18n20a8r.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [CRMICRO datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603109931817967616) (10 pp, sha256 `96edb93ec69fbf43`, retrieved 2026-10-13, 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/cs18n20a8r-datasheet.pdf)