# JK-mSMD110-16

**Jinrui Electronic Materials Co** · Resettable Fuses · 1812

JK-mSMD110-16 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 | 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 | 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 |
|---|---|---|---|---|---|---|---|
| Maximum operating voltage (Vmax, rated voltage) | Vmax |  |  | 16 | Vdc | Maximum operating voltage at rated current (Imax) | 3 |
| Maximum fault current (Imax) | Imax |  |  | 100 | A | Maximum fault current at rated voltage (Vmax) | 3 |
| Hold current (Ihold) | Ihold |  |  | 1.1 | A | @25°C, still air; device will not trip | 3 |
| Trip current (Itrip) | Itrip | 2.2 |  |  | A | @25°C, still air; device always trips | 3 |
| Time to trip |  |  |  | 0.3 | Sec | At specified current 8.0 A, Vmax, 25°C | 3 |
| Minimum resistance prior to tripping (Rimin) | Rimin | 0.05 |  |  | Ω | 25°C, in still air | 3 |
| Maximum resistance one hour post reflow (R1max) | R1max |  |  | 0.25 | Ω | Measured one hour post reflow | 3 |
| Operating temperature |  | -40 |  | 85 | ℃ | Operating temperature range | 1 |
| Passive aging resistance change |  | -10 |  | 10 | % | 85℃, 1000 hours | 5 |
| Humidity aging resistance change |  | -5 |  | 5 | % | 85℃/85%RH, 1000 hours | 5 |
| Thermal shock resistance change |  |  | -30 |  | % | MIL-STD-202 Method 107G, +85℃/-40℃, 20 times; typical | 5 |
| Storage maximum ambient temperature |  |  |  | 38 | ℃ | Storage; higher storage temperatures may deform packaging | 8 |
| Storage maximum relative humidity |  |  |  | 60 | % | Storage | 8 |
| Hold current derating (IH) at ambient | IH |  | 1.6 |  | A | Maximum ambient operating temperature -40℃ | 2 |
| Hold current derating (IH) at ambient | IH |  | 1.45 |  | A | Maximum ambient operating temperature -20℃ | 2 |
| Hold current derating (IH) at ambient | IH |  | 1.28 |  | A | Maximum ambient operating temperature 0℃ | 2 |
| Hold current derating (IH) at ambient | IH |  | 1.1 |  | A | Maximum ambient operating temperature 25℃ | 2 |
| Hold current derating (IH) at ambient | IH |  | 0.92 |  | A | Maximum ambient operating temperature 40℃ | 2 |
| Hold current derating (IH) at ambient | IH |  | 0.83 |  | A | Maximum ambient operating temperature 50℃ | 2 |
| Hold current derating (IH) at ambient | IH |  | 0.71 |  | A | Maximum ambient operating temperature 60℃ | 2 |
| Hold current derating (IH) at ambient | IH |  | 0.66 |  | A | Maximum ambient operating temperature 70℃ | 2 |
| Hold current derating (IH) at ambient | IH |  | 0.52 |  | A | Maximum ambient operating temperature 85℃ | 2 |

## CAD (KiCad official)

- Symbol: `JK-mSMD110-16`
- 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-msmd110-16-etched.step` / `jk-msmd110-16-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `jk-msmd110-16.step` / `jk-msmd110-16.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Jinrui Electronic Materials Co datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588903780226379777) (8 pp, sha256 `d4e36eeede2559dd`, retrieved 2026-10-15, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `two-terminal convention` (convention), consensus `off` (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/jk-msmd110-16-datasheet.pdf)