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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.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 (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