# SRF1206P005

**prosemi** · Resettable Fuses · 1206

SRF1206P005 from prosemi, 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 | 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 | prosemi |
| Package | 1206 |
| 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), maximum current at which device will not trip | IH |  |  | 0.05 | A | 25℃ still air | 1 |
| Trip current (IT), minimum current at which device will always trip | IT | 0.15 |  |  | A | 25℃ still air | 1 |
| Maximum continuous voltage (Vmax) | Vmax |  |  | 60 | V | at rated current | 1 |
| Maximum fault current (Imax) | Imax |  |  | 40 | A | at rated voltage | 1 |
| Maximum time to trip | Ttrip |  |  | 0.25 | Sec. | at assigned current | 1 |
| Typical power dissipation (Pdtyp) | Pdtyp |  | 1.5 |  | W | typical power dissipated in still air | 1 |
| Minimum resistance in initial (un-soldered) state (Rmin) | Rmin | 0.4 |  |  | Ω | initial (un-soldered) state | 1 |
| Maximum resistance at 25℃ one hour after reflow (R1max) | R1max |  |  | 3.6 | Ω | 25℃, one hour after reflow | 1 |
| Maximum hold current at ambient -40°C | IH |  |  | 0.074 | A | Ambient Operating Temperature -40°C | 1 |
| Maximum hold current at ambient -20°C | IH |  |  | 0.066 | A | Ambient Operating Temperature -20°C | 1 |
| Maximum hold current at ambient 0°C | IH |  |  | 0.056 | A | Ambient Operating Temperature 0°C | 1 |
| Maximum hold current at ambient 25°C | IH |  |  | 0.05 | A | Ambient Operating Temperature 25°C | 1 |
| Maximum hold current at ambient 40°C | IH |  |  | 0.042 | A | Ambient Operating Temperature 40°C | 1 |
| Maximum hold current at ambient 50°C | IH |  |  | 0.037 | A | Ambient Operating Temperature 50°C | 1 |
| Maximum hold current at ambient 60°C | IH |  |  | 0.035 | A | Ambient Operating Temperature 60°C | 1 |
| Maximum hold current at ambient 70°C | IH |  |  | 0.03 | A | Ambient Operating Temperature 70°C | 1 |
| Maximum hold current at ambient 85°C | IH |  |  | 0.027 | A | Ambient Operating Temperature 85°C | 1 |
| Ambient operating temperature range |  | -40 |  | 85 | °C | Ambient Operating Temperature, from the hold-current table headers | 1 |

## CAD (KiCad official)

- Symbol: `SRF1206P005`
- Footprint: `Fuse:Fuse_1206_3216Metric`
- 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files: `srf1206p005-etched.step` / `srf1206p005-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `srf1206p005.step` / `srf1206p005.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [prosemi datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590921239785652224) (3 pp, sha256 `8e0647b503a8de36`, retrieved 2026-10-16, 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/srf1206p005-datasheet.pdf)