# nSMD050-24V

**TECHFUSE** · Resettable Fuses · 1206

nSMD050-24V from TECHFUSE, 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 | TECHFUSE |
| 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 voltage | Vmax |  |  | 24 | Vdc |  | 1 |
| Maximum current | Imax |  |  | 100 | A | @25°C | 1 |
| Hold current | Ihold |  | 0.5 |  | A | @25°C | 1 |
| Trip current | Itrip |  | 1 |  | A | @25°C | 1 |
| Power dissipation | Pd |  |  | 0.6 | W |  | 1 |
| Time to trip current |  |  | 8 |  | A | Time-to-trip test current | 1 |
| Time to trip |  |  | 0.1 |  | Sec | At 8.0 A trip current | 1 |
| Minimum resistance | Rimin | 0.15 |  |  | W |  | 1 |
| Maximum resistance after trip | R1max |  |  | 0.7 | W |  | 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 Solderability: Meets EIA Specification RS186-9E And ANSI/J-STD-002 Category 3. Terminal Pad Materials: Tin-plated Nickel-Copper Lead-Free, RoHS Compliant | 1 |

## CAD (KiCad official)

- Symbol: `nSMD050-24V`
- Footprint: `Fuse:Fuse_1206_3216Metric`
- 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files: `nsmd050-24v-etched.step` / `nsmd050-24v-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `nsmd050-24v.step` / `nsmd050-24v.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [TECHFUSE datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586176172522266624) (1 pp, sha256 `52666347fe1681b8`, retrieved 2026-10-19, 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/nsmd050-24v-datasheet.pdf)