# 0ZCK0050FF2E

**Bel Fuse** · Resettable Fuses · 0805

0ZCK0050FF2E from Bel Fuse, 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 | Terminal 1 of an unpolarised fuse; either orientation. |
| 2 | 2 | passive | Terminal 2 of an unpolarised fuse; either orientation. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Bel Fuse |
| 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 |
|---|---|---|---|---|---|---|---|
| Hold current | IH |  |  | 0.5 | A | Maximum current that will not trip, still air at 23°C | 1 |
| Trip current | IT | 1 |  |  | A | Minimum current that will trip, still air at 23°C | 1 |
| Rated voltage (Vmax) | Vmax |  |  | 6 | Vdc | Maximum voltage device can withstand at its rated current without damage | 1 |
| Maximum current (Imax) | Imax |  |  | 100 | A | Maximum fault current at rated voltage (Vmax) without damage | 1 |
| Max time to trip |  |  |  | 0.1 | Sec | At 8.00 A | 1 |
| Minimum resistance (initial, un-soldered) | Rmin | 0.15 |  |  | Ohms | 23°C, initial un-soldered state | 1 |
| Maximum resistance after trip or soldering | R1max |  |  | 0.85 | Ohms | 23°C, 1 hour after initial trip or after soldering to PCB | 1 |
| Operating temperature range |  | -40 |  | 85 | °C |  | 1 |
| Typical power (tripped state) | Pd |  | 0.5 |  | W | Tripped state, 23°C still air | 1 |

## CAD (KiCad official)

- Symbol: `0ZCK0050FF2E`
- Footprint: `Fuse:Fuse_0805_2012Metric`
- 3D model: 0805 (KiCad packages3D, STEP)
- 3D model files: `0zck0050ff2e-etched.step` / `0zck0050ff2e-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `0zck0050ff2e.step` / `0zck0050ff2e.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Bel Fuse datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589835727623393280) (4 pp, sha256 `811b1a0aaafe03e9`, retrieved 2026-10-19, 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/0zck0050ff2e-datasheet.pdf)