# ASMD1812SL500-12V

**Shenzhen JDT Fuse** · PTC Thermistors · 1812

ASMD1812SL500-12V from Shenzhen JDT Fuse, in a 1812. 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 | 1 | passive | Non-polarized terminal of the PPTC resettable fuse. Rated 12 V max, 5.0 A hold current at 25 °C, 10.0 A trip current. Initial resistance 0.003 Ω min / 0.014 Ω max (R1 max post-reflow). |
| 2 | 2 | passive | Non-polarized terminal of the PPTC resettable fuse. Rated 12 V max, 5.0 A hold current at 25 °C, 10.0 A trip current. Initial resistance 0.003 Ω min / 0.014 Ω max (R1 max post-reflow). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Shenzhen JDT Fuse |
| Package | 1812 |
| Category | Sensors |
| Pins | 2 |

## Ordering variants

Same part, different packaging or reel option.

- `ASMD1812SL500-12V`

## CAD (KiCad official)

- Symbol: `ASMD1812SL500-12V`
- Footprint: `Resistor_SMD:R_1812_4532Metric`
- 3D model: 1812 (KiCad packages3D, STEP)
- 3D model files: `asmd1812sl500-12v-etched.step` / `asmd1812sl500-12v-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `asmd1812sl500-12v.step` / `asmd1812sl500-12v.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Shenzhen JDT Fuse datasheet](docs/asmd1812sl500-12v-datasheet.pdf) (10 pp, sha256 `a9d7d6541a01f96e`, retrieved 2026-08-17, tier: lcsc)
- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/asmd1812sl500-12v-datasheet.pdf)