# SMD0603-020C-12V

**BNstar** · Resettable Fuses · 0603

SMD0603-020C-12V from BNstar, in a 0603. 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 | Non-polarized terminal of the resettable PTC fuse, rated 0.20 A hold and 0.50 A trip at 25℃, 12.0 V max, 40 A max fault current. |
| 2 | 2 | passive | Non-polarized terminal of the resettable PTC fuse, with a resistance of 0.55 Ω min and 3.50 Ω max at 25℃ (R1max after reflow). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | BNstar |
| Package | 0603 |
| Category | Circuit Protection |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `SMD0603-020C-12V`
- Footprint: `Fuse:Fuse_0603_1608Metric`
- 3D model: 0603 (KiCad packages3D, STEP)
- 3D model files: `smd0603-020c-12v-etched.step` / `smd0603-020c-12v-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smd0603-020c-12v.step` / `smd0603-020c-12v.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [BNstar datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590903949182918656) (3 pp, sha256 `fa463ca66acd6da0`, 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/smd0603-020c-12v-datasheet.pdf)