# SCF075-1210R

**SOCAY Elec** · Resettable Fuses · 1210

SCF075-1210R from SOCAY Elec, in a 1210. 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 | First terminal pad of the non-polarized resettable PTC (Pure Tin); series over-current element rated Ihold 0.75 A, Itrip 1.5 A, Vmax 8 Vdc, Imax 100 A. |
| 2 | 2 | passive | Second terminal pad of the non-polarized resettable PTC (Pure Tin); interchangeable with the first terminal, rated Ihold 0.75 A, Itrip 1.5 A, Vmax 8 Vdc, Imax 100 A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | SOCAY Elec |
| Package | 1210 |
| 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 | I hold |  |  | 0.75 | A | 23°C still air; maximum current device will pass without tripping | 1 |
| Trip current | I trip | 1.5 |  |  | A | 23°C still air; minimum current at which device will trip | 1 |
| Maximum voltage | V max |  |  | 8 | Vdc | at rated current (Imax); maximum voltage device can withstand without damage | 1 |
| Maximum fault current | I max |  |  | 100 | A | at rated voltage (Vmax); maximum fault current device can withstand without damage | 1 |
| Maximum time to trip |  |  |  | 0.1 | Sec. | at 8.00 A fault current | 1 |
| Minimum resistance (initial, un-soldered) | R min | 0.13 |  |  | Ω | initial (un-soldered) state | 1 |
| Maximum resistance after trip | R 1max |  |  | 0.4 | Ω | 23°C, measured one hour after tripping | 1 |
| Typical power dissipated when tripped | P dtyp |  | 0.6 |  | W | tripped state at 23°C still air | 1 |

## Materials and finish

As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).

| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts |  | tin | Terminal pad material Pure Tin Soldering Characteristics Meets EIA specification RS 186-9E, ANSI/J-std-002 Category 3 | 2 |

## CAD (KiCad official)

- Symbol: `SCF075-1210R`
- Footprint: `Fuse:Fuse_1210_3225Metric`
- 3D model: 1210 (KiCad packages3D, STEP)
- 3D model files: `scf075-1210r-etched.step` / `scf075-1210r-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `scf075-1210r.step` / `scf075-1210r.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [SOCAY Elec datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588942679958278144) (4 pp, sha256 `66f2b11d8a8a7cea`, 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/scf075-1210r-datasheet.pdf)