JK-nSMD500L-12
Public Made by Adomby adom
Jinrui Electronic Materials Co Resettable Fuses, 1206. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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README
markdownJK-nSMD500L-12
Jinrui Electronic Materials Co · Resettable Fuses · 1206
JK-nSMD500L-12 from Jinrui Electronic Materials Co, 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 | Terminal 1 of an unpolarised fuse; either orientation. |
| 2 | 2 | passive | Terminal 2 of an unpolarised fuse; either orientation. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Jinrui Electronic Materials Co |
| 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 |
|---|---|---|---|---|---|---|---|
| Maximum continuous voltage (VMAX), 12 V variant | VMAX | 12 | V | 3 | |||
| Maximum fault current (IMAX) | IMAX | 50 | A | 3 | |||
| Hold current (IH) | IH | 5 | A | 3 | |||
| Trip current (IT) | IT | 10 | A | 3 | |||
| Maximum time to trip | 2 | s | at 25.0 A | 3 | |||
| Minimum initial resistance (RiMIN) | RiMIN | 0.002 | Ω | 3 | |||
| Maximum resistance one hour post reflow (R1MAX) | R1MAX | 0.011 | Ω | 3 | |||
| Typical power dissipation (PD) | PD | 1 | W | 3 | |||
| Resistance change, passive aging | -10 | 10 | % | 85℃, 1000 hours | 5 | ||
| Resistance change, humidity aging | -5 | 5 | % | 85℃/85%RH, 100 hours | 5 | ||
| Resistance change, thermal shock | -30 | % | MIL-STD-202 Method 107G, +85℃/-40℃, 20 times | 5 | |||
| Operating temperature | -40 | 85 | ℃ | 1 | |||
| Maximum storage ambient temperature | 40 | ℃ | storage | 8 | |||
| Maximum storage relative humidity | 70 | % | storage | 8 | |||
| Peak/classification reflow temperature (TP) | TP | 260 | ℃ | Pb-free reflow profile | 6 |
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 | copper | tin | Terminal Materials Tin-Plated Nickle-copper | 4 |
CAD (KiCad official)
- Symbol:
JK-nSMD500L-12 - Footprint:
Fuse:Fuse_1206_3216Metric - 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files:
jk-nsmd500l-12-etched.step/jk-nsmd500l-12-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);jk-nsmd500l-12.step/jk-nsmd500l-12.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Jinrui Electronic Materials Co datasheet (8 pp, sha256
65357ef49c2d2f91, retrieved 2026-10-17, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarytwo-terminal convention(convention), consensusoff(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).