# MF-NSMF050-2

**BOURNS** · Resettable Fuses · 1206

MF-NSMF050-2 from BOURNS, in a 1206. 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 | Terminal 1 | passive | PTC fuse terminal rated for maximum 13.2 V and 100 A with hold current 0.50 A and trip current 1.00 A at 23°C. |
| 2 | Terminal 2 | passive | PTC fuse terminal rated for maximum 13.2 V and 100 A with hold current 0.50 A and trip current 1.00 A at 23°C. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | BOURNS |
| Package | 1206 |
| Category | Circuit Protection |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `MF-NSMF050-2`
- Footprint: `Resistor_SMD:R_1206_3216Metric`
- 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files: `mf-nsmf050-2-etched.step` / `mf-nsmf050-2-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mf-nsmf050-2.step` / `mf-nsmf050-2.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/8586175054455984128) (5 pp, sha256 `3f00ec6ac61ecb5d`, retrieved 2026-10-08, 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/mf-nsmf050-2-datasheet.pdf)