# 12H1200C

**Shenzhen lanson Elec** · Disposable Fuses · 1206

12H1200C from Shenzhen lanson Elec, 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 | Shenzhen lanson Elec |
| 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 |
|---|---|---|---|---|---|---|---|
| Opening time at 100% of rated current (no opening) |  | 4 |  |  | hours | 1A~5A ratings, 100% of rated current | 1 |
| Opening time at 250% of rated current |  |  |  | 5 | s | 1A~5A ratings, 250% of rated current | 1 |
| Opening time at 300% of rated current |  | 0.1 |  | 3 | s | 1A~5A ratings, 300% of rated current | 1 |
| Opening time at 1000% of rated current |  | 0.2 |  | 20 | ms | 1A~5A ratings, 1000% of rated current | 1 |
| Interrupting rating |  |  |  | 50 | A | 63V DC, 1A~4A ratings | 1 |
| Operating temperature |  | -55 |  | 125 | ℃ |  | 1 |
| Wave soldering temperature |  |  |  | 260 | ℃ | Wave soldering, 10 s max | 1 |
| Rated voltage |  |  | 63 |  | V | DC, 63V variant (suffix C) | 1 |
| Rated current |  |  | 2 |  | A |  | 1 |
| Cold resistance |  |  | 1.63 |  |  |  | 1 |

## CAD (KiCad official)

- Symbol: `12H1200C`
- Footprint: `Fuse:Fuse_1206_3216Metric`
- 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files: `12h1200c-etched.step` / `12h1200c-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `12h1200c.step` / `12h1200c.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Shenzhen lanson Elec datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586197511371833344) (1 pp, sha256 `3bc54056cf91ac4e`, retrieved 2026-10-18, 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/12h1200c-datasheet.pdf)