# SF-0603FP050F-2

**BOURNS** · Disposable Fuses · 0603

SF-0603FP050F-2 from BOURNS, 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 | Terminal 1 of an unpolarised fuse; either orientation. |
| 2 | 2 | passive | Terminal 2 of an unpolarised fuse; either orientation. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | BOURNS |
| Package | 0603 |
| 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 |
|---|---|---|---|---|---|---|---|
| Resistance tolerance |  | -25 |  | 25 | % | Resistance measured with <=10 % rated current at 25 °C ambient | 1 |
| Fusing time |  |  |  | 5 | sec | Open within 5 sec at 200 % rated current | 1 |
| Operating temperature |  | -55 |  | 90 | °C |  | 2 |
| Storage temperature |  | 5 |  | 35 | °C | Storage conditions | 2 |
| Storage humidity |  | 40 |  | 75 | % | Storage conditions | 2 |
| Peak package body temperature (Tp), Pb-free reflow | Tp |  |  | 260 | °C | Pb-free reflow/wave soldering profile | 3 |
| Rated voltage |  |  |  | 65 | V | DC | 1 |
| Resistance |  |  | 0.184 |  | Ω | Measured with <=10 % rated current at 25 °C ambient | 1 |
| Rated current |  |  | 0.5 |  | A |  | 1 |
| Typical melting I2t | I2t |  | 0.0122 |  | A2s | Melting I2t calculated at 0.001 second pre-arcing time | 1 |

## CAD (KiCad official)

- Symbol: `SF-0603FP050F-2`
- Footprint: `Fuse:Fuse_0603_1608Metric`
- 3D model: 0603 (KiCad packages3D, STEP)
- 3D model files: `sf-0603fp050f-2-etched.step` / `sf-0603fp050f-2-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sf-0603fp050f-2.step` / `sf-0603fp050f-2.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [BOURNS datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8565293511969685504) (6 pp, sha256 `07ccbcfbd9a1fae7`, retrieved 2026-10-20, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `two-terminal convention` (convention), consensus `off` (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/sf-0603fp050f-2-datasheet.pdf)