# SMD0805-020-24

**hongjiacheng** · Resettable Fuses · 0805

SMD0805-020-24 from hongjiacheng, in a 0805. 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 terminal of the non-polarized PTC device, in series with the protected circuit; SMD0805-020-24 is rated Ihold 0.2 A, Itrip 0.5 A, Vmax 24 V, Imax 40 A. |
| 2 | 2 | passive | Other terminal of the non-polarized PTC device, interchangeable with the first; Ri min 0.50 ohm and R1 max 3.50 ohm. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | hongjiacheng |
| Package | 0805 |
| Category | Circuit Protection |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `SMD0805-020-24`
- Footprint: `Fuse:Fuse_0805_2012Metric`
- 3D model: 0805 (KiCad packages3D, STEP)
- 3D model files: `smd0805-020-24-etched.step` / `smd0805-020-24-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smd0805-020-24.step` / `smd0805-020-24.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [hongjiacheng datasheet](docs/smd0805-020-24-datasheet.pdf) (5 pp, sha256 `a930a11b191539eb`, 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/smd0805-020-24-datasheet.pdf)