component
12 100.3
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Shenzhen Jinkaisheng Elec Disposable Fuses, 1206. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdown12 100.3
Shenzhen Jinkaisheng Elec · Disposable Fuses · 1206
12 100.3 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 terminal of the non-polarized 3A fast-acting fuse (3.20mm x 1.60mm body, 0.50mm end terminations); rated 24V/32V/63V/72V DC, interchangeable with terminal 2. |
| 2 | 2 | passive | Second terminal of the non-polarized 3A fast-acting fuse (3.20mm x 1.60mm body, 0.50mm end terminations); typical cold resistance 48 mOhms, breaking capacity 300A@24Vdc. |
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 |
|---|---|---|---|---|---|---|---|
| Rated current (nominal value, MPN 12 100.3) | 3 | A | 1 | ||||
| Typical cold resistance | 48 | mOhms | measured at <10% of rated current in ambient temperature of 25℃ | 1 | |||
| Typical voltage drop | 187 | mV | 1 | ||||
| Typical pre-arcing I2t | I2t | 1.39 | A2Sec | measured at 10In current | 1 | ||
| Operating temperature | -55 | 150 | ℃ | with proper correction factor applied | 5 |
CAD (KiCad official)
- Symbol:
12 100.3 - Footprint:
Fuse:Fuse_1206_3216Metric - 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files:
12-100-3-etched.step/12-100-3-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);12-100-3.step/12-100-3.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Shenzhen Jinkaisheng Elec datasheet (5 pp, sha256
4519cf578aca521d, 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).