# JK-MSMD150-24V

**Jinrui Electronic Materials Co** · Resettable Fuses · 1812

JK-MSMD150-24V from Jinrui Electronic Materials Co, in a 1812. 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 | 1 | passive | One of two interchangeable, non-polarized tin-plated nickel-copper terminal pads (1.78±0.1 x 3.2±0.1 mm recommended pad) of the 1812 PTC resettable fuse, rated 24 Vdc max, 1.50 A hold and 3.00 A trip at 25°C. |
| 2 | 2 | passive | Second interchangeable, non-polarized terminal pad of the 1812 PTC resettable fuse, rated Imax 100 A at Vmax 24 Vdc, with Rimin 0.040 ohm and R1max 0.160 ohm. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Jinrui Electronic Materials Co |
| Package | 1812 |
| Category | Circuit Protection |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `JK-MSMD150-24V`
- Footprint: `Fuse:Fuse_1812_4532Metric`
- 3D model: 1812 (KiCad packages3D, STEP)
- 3D model files: `jk-msmd150-24v-etched.step` / `jk-msmd150-24v-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `jk-msmd150-24v.step` / `jk-msmd150-24v.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Jinrui Electronic Materials Co datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588894004541345792) (8 pp, sha256 `d4e36eeede2559dd`, retrieved 2026-10-09, 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/jk-msmd150-24v-datasheet.pdf)