# JK-SMD1210-050-16V

**Jinrui Electronic Materials Co.** · Resettable Fuses · 1210

JK-SMD1210-050-16V from Jinrui Electronic Materials Co., in a 1210. 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 | 1210 |
| 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) | Vmax |  |  | 16 | Vdc | at rated current Imax | 2 |
| Maximum fault current (Imax) | Imax |  |  | 100 | A | at rated voltage Vmax | 2 |
| Maximum power dissipation when tripped (Pd) | Pd |  |  | 0.6 | W | tripped state, 25℃ still air, rated voltage | 2 |
| Trip current (Itrip), minimum | Itrip | 1 |  |  | A | 25℃ still air | 2 |
| Minimum device resistance prior to tripping (Rimin) | Rimin | 0.18 |  |  | Ω | 25℃, prior to tripping | 2 |
| Maximum device resistance one hour post reflow (R1max) | R1max |  |  | 0.9 | Ω | measured one hour post reflow | 2 |
| Maximum time to trip |  |  |  | 0.1 | Sec | at 8.0 A current | 2 |
| Operating temperature range |  | -40 |  | 85 | ℃ |  | 1 |
| Resistance change, passive aging |  | -10 |  | 10 | % | 85℃, 1000 hours | 3 |
| Resistance change, humidity aging |  | -5 |  | 5 | % | 85℃/85%RH, 1000 hours | 3 |
| Resistance change, thermal shock |  |  | -30 |  | % | MIL-STD-202 Method 107G, +85℃/-40℃, 20 times | 3 |
| Hold current (Ihold) | Ihold |  | 0.5 |  | A | maximum current device will not trip in 25℃ still air | 2 |

## 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-SMD1210-050-16V`
- Footprint: `Fuse:Fuse_1210_3225Metric`
- 3D model: 1210 (KiCad packages3D, STEP)
- 3D model files: `jk-smd1210-050-16v-etched.step` / `jk-smd1210-050-16v-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `jk-smd1210-050-16v.step` / `jk-smd1210-050-16v.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/8588918470717149184) (6 pp, sha256 `ccc14778a29cad6b`, retrieved 2026-10-17, 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-smd1210-050-16v-datasheet.pdf)