# SMD0805-050C-16V

**BNstar** · Resettable Fuses · 0805

SMD0805-050C-16V from BNstar, 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 resettable PTC fuse (hold current 0.50 A, trip current 1.00 A at 25°C, Vmax 16 V, Imax 40 A). |
| 2 | 2 | passive | Other terminal of the non-polarized resettable PTC fuse (hold current 0.50 A, trip current 1.00 A at 25°C, Vmax 16 V, Imax 40 A). |

## Key specifications

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

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Minimum resistance, initial (un-soldered) state | Rmin | 0.1 |  |  | Ω | initial (un-soldered) state | 1 |
| Maximum resistance at 25℃ | R1max |  |  | 0.85 | Ω | 25℃, measured one hour after reflow soldering 260℃ for 20 s | 1 |
| Maximum continuous voltage | Vmax |  |  | 16 | V | at rated current | 1 |
| Maximum fault current | Imax |  |  | 40 | A | at rated voltage | 1 |
| Maximum time to trip | Ttrip |  |  | 0.1 | S | 25℃, at assigned trip current 8.0 A | 1 |
| Recommended storage temperature |  |  |  | 40 | ℃ | storage | 2 |
| Recommended storage relative humidity |  |  |  | 70 | % | storage, R.H. | 2 |
| Hold current | IH |  | 0.5 |  | A | 25℃ still air | 1 |
| Trip current | IT |  | 1 |  | A | 25℃ still air | 1 |
| Typical power dissipation | Pdtyp |  | 0.5 |  | W | typical, in air environment | 1 |
| Trip test current for Ttrip |  |  | 8 |  | A | 25℃, assigned current for time to trip | 1 |
| Hold current at ambient |  |  | 0.68 |  | A | maximum ambient operating temperature -40℃ | 2 |
| Hold current at ambient |  |  | 0.62 |  | A | maximum ambient operating temperature -20℃ | 2 |
| Hold current at ambient |  |  | 0.55 |  | A | maximum ambient operating temperature 0℃ | 2 |
| Hold current at ambient |  |  | 0.5 |  | A | maximum ambient operating temperature 25℃ | 2 |
| Hold current at ambient |  |  | 0.4 |  | A | maximum ambient operating temperature 40℃ | 2 |
| Hold current at ambient |  |  | 0.37 |  | A | maximum ambient operating temperature 50℃ | 2 |
| Hold current at ambient |  |  | 0.33 |  | A | maximum ambient operating temperature 60℃ | 2 |
| Hold current at ambient |  |  | 0.29 |  | A | maximum ambient operating temperature 70℃ | 2 |
| Hold current at ambient |  |  | 0.23 |  | A | maximum ambient operating temperature 85℃ | 2 |

## CAD (KiCad official)

- Symbol: `SMD0805-050C-16V`
- Footprint: `Fuse:Fuse_0805_2012Metric`
- 3D model: 0805 (KiCad packages3D, STEP)
- 3D model files: `smd0805-050c-16v-etched.step` / `smd0805-050c-16v-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `smd0805-050c-16v.step` / `smd0805-050c-16v.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/8590174850296803328) (3 pp, sha256 `1bc5c84a76bca394`, retrieved 2026-10-18, 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/smd0805-050c-16v-datasheet.pdf)