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12 110.2.5
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Shenzhen Jinkaisheng Elec Disposable Fuses, 1206. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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12 110.2.5
Shenzhen Jinkaisheng Elec · Disposable Fuses · 1206
12 110.2.5 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-cap terminal of the non-polarized 2.5 A slow-blow fuse (rated 72V DC, 50A breaking capacity, typical cold resistance 80 mOhms); the 0.51 ±0.25 mm termination on one end of the 3.20 ±0.20 mm body. |
| 2 | 2 | passive | The other end-cap terminal of the non-polarized 2.5 A slow-blow fuse (rated 72V DC, typical voltage drop 240 mV); the 0.51 ±0.25 mm termination on the opposite end of the body. |
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 |
|---|---|---|---|---|---|---|---|
| Time to open at 1.0In (minimum) | 4 | hour | Rated current 1A~3A, 1.0In | 1 | |||
| Time to open at 2.0In | 1 | 60 | sec | Rated current 1A~3A, 2.0In | 1 | ||
| Time to open at 2.5In (maximum) | 5 | sec | Rated current 1A~3A, 2.5In | 1 | |||
| Time to open at 3.0In | 0.1 | 3 | sec | Rated current 1A~3A, 3.0In | 1 | ||
| Time to open at 10.0In | 0.2 | 20 | ms | Rated current 1A~3A, 10.0In | 1 | ||
| Rated current | 2.5 | A | 1 | ||||
| Typical cold resistance | 80 | mOhms | Measured at <10% of rated current, ambient 25℃ | 1 | |||
| Typical voltage drop | 240 | mV | 1 | ||||
| Typical pre-arcing I2t | I2t | 0.68 | A2 Sec | Measured at 10In current | 1 |
CAD (KiCad official)
- Symbol:
12 110.2.5 - Footprint:
Fuse:Fuse_1206_3216Metric - 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files:
12-110-2-5-etched.step/12-110-2-5-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);12-110-2-5.step/12-110-2-5.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Shenzhen Jinkaisheng Elec datasheet (3 pp, sha256
32bfe98cdd9efcba, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-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).
# 12 110.2.5
**Shenzhen Jinkaisheng Elec** · Disposable Fuses · 1206
12 110.2.5 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-cap terminal of the non-polarized 2.5 A slow-blow fuse (rated 72V DC, 50A breaking capacity, typical cold resistance 80 mOhms); the 0.51 ±0.25 mm termination on one end of the 3.20 ±0.20 mm body. |
| 2 | 2 | passive | The other end-cap terminal of the non-polarized 2.5 A slow-blow fuse (rated 72V DC, typical voltage drop 240 mV); the 0.51 ±0.25 mm termination on the opposite end of the body. |
## 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 |
|---|---|---|---|---|---|---|---|
| Time to open at 1.0In (minimum) | | 4 | | | hour | Rated current 1A~3A, 1.0In | 1 |
| Time to open at 2.0In | | 1 | | 60 | sec | Rated current 1A~3A, 2.0In | 1 |
| Time to open at 2.5In (maximum) | | | | 5 | sec | Rated current 1A~3A, 2.5In | 1 |
| Time to open at 3.0In | | 0.1 | | 3 | sec | Rated current 1A~3A, 3.0In | 1 |
| Time to open at 10.0In | | 0.2 | | 20 | ms | Rated current 1A~3A, 10.0In | 1 |
| Rated current | | | 2.5 | | A | | 1 |
| Typical cold resistance | | | 80 | | mOhms | Measured at <10% of rated current, ambient 25℃ | 1 |
| Typical voltage drop | | | 240 | | mV | | 1 |
| Typical pre-arcing I2t | I2t | | 0.68 | | A2 Sec | Measured at 10In current | 1 |
## CAD (KiCad official)
- Symbol: `12 110.2.5`
- Footprint: `Fuse:Fuse_1206_3216Metric`
- 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files: `12-110-2-5-etched.step` / `12-110-2-5-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `12-110-2-5.step` / `12-110-2-5.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/8588911254723842048) (3 pp, sha256 `32bfe98cdd9efcba`, 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/12-110-2-5-datasheet.pdf)