component
JK-MSMD014
Public Made by Adomby adom
Jinrui Electronic Materials Co Resettable Fuses, 1812. 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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Contents
README
markdownJK-MSMD014
Jinrui Electronic Materials Co · Resettable Fuses · 1812
JK-MSMD014 from Jinrui Electronic Materials Co, in a 1812. 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 | First terminal pad of the non-polarized PPTC resettable fuse (Tin-plated nickel-copper), rated 60 Vdc max, 100 A max fault current, 0.14 A hold and 0.34 A trip at 25°C. |
| 2 | 2 | passive | Second terminal pad of the non-polarized PPTC resettable fuse (Tin-plated nickel-copper), interchangeable with the other terminal, rated 60 Vdc max and 100 A max fault current. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Jinrui Electronic Materials Co |
| Package | 1812 |
| 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 |
|---|---|---|---|---|---|---|---|
| Itrip (minimum current at which device always trips) | Itrip | 0.34 | A | @25°C, still air | 3 | ||
| Rimin (minimum resistance prior to tripping) | Rimin | 0.65 | Ω | 25°C | 3 | ||
| R1max (maximum resistance one hour post reflow) | R1max | 6 | Ω | measured one hour post reflow | 3 | ||
| Time to trip (maximum) | Time to trip | 0.15 | s | 1.5 A current, Vmax, 25°C | 3 | ||
| Maximum operating voltage (rated voltage) | Vmax | 60 | Vdc | 3 | |||
| Maximum fault current (rated current) | Imax | 100 | A | at rated voltage Vmax | 3 | ||
| Hold current (maximum current that will not trip) | Ihold | 0.14 | A | @25°C | 3 | ||
| Operating temperature | -40 | 85 | °C | 1 |
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 pad materials :Tin-Plated Nickle-copper | 1 |
CAD (KiCad official)
- Symbol:
JK-MSMD014 - Footprint:
Fuse:Fuse_1812_4532Metric - 3D model: 1812, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.9 mm nominal 1806 height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
- 3D model files:
jk-msmd014-etched.step/jk-msmd014-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);jk-msmd014.step/jk-msmd014.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
d4e36eeede2559dd, 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).