# 12 110.7 S

**Shenzhen Jinkaisheng Elec** · Disposable Fuses · 1206

12 110.7 S from Shenzhen Jinkaisheng Elec, 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 | One end terminal of the 7 A slow-blow fuse (0.51 ±0.25 mm typ. wide), rated 32 V DC with 50 A breaking capacity; the fuse is non-polarized. |
| 2 | 2 | passive | Other end terminal of the 7 A slow-blow fuse (0.51 ±0.25 mm typ. wide), interchangeable with the opposite terminal; typical cold resistance 12.3 mOhm. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Shenzhen Jinkaisheng Elec |
| 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 |
|---|---|---|---|---|---|---|---|
| Opening time at 1.0In (7A~15A rated group) |  | 4 |  |  | hour | 1.0In | 1 |
| Opening time at 3.5In (7A~15A rated group) |  |  |  | 5 | sec | 3.5In | 1 |
| Opening time at 10.0In (7A~15A rated group) |  | 0.2 |  | 10 | ms | 10.0In | 1 |
| Rated Voltage |  |  |  | 32 | V |  | 1 |
| Rated Current |  |  | 7 |  | A |  | 1 |
| Typical Cold Resistance |  |  | 12.3 |  | mOhms | <10% of rated current, ambient 25℃ | 1 |
| Typical Voltage Drop |  |  | 140 |  | mV |  | 1 |
| Typical Pre-Arcing I2t | I2t |  | 5.72 |  | A2 Sec | measured at 10In current | 1 |
| DC Breaking Capacity (DC Interrupting Rating) |  |  | 50 |  | A | measured at rated voltage, time constant less than 50 microseconds, battery source | 1 |

## CAD (KiCad official)

- Symbol: `12 110.7 S`
- Footprint: `Fuse:Fuse_1206_3216Metric`
- 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files: `12-110-7-s-etched.step` / `12-110-7-s-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `12-110-7-s.step` / `12-110-7-s.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Shenzhen Jinkaisheng Elec datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588903782831177728) (3 pp, sha256 `fd129f219f01d714`, 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/12-110-7-s-datasheet.pdf)