# 12H1350C

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

12H1350C 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 | One end termination of the non-polarized 3.5A 63V SMD fuse (silver over-plated with nickel and tin), rated 50 A interrupting at 63V DC. |
| 2 | 2 | passive | Other end termination of the non-polarized 3.5A 63V SMD fuse, interchangeable with the first terminal, wave solder 260℃ 10s max. |

## 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 |
|---|---|---|---|---|---|---|---|
| Operating temperature |  | -55 |  | 125 | ℃ |  | 1 |
| Interrupting rating |  |  |  | 50 | A | 63V DC, applies to 1A~4A ratings (3.5A part falls in this range) | 1 |
| Rated voltage |  |  |  | 63 | V | 63V series (12H1350C) | 1 |
| Rated current |  |  | 3.5 |  | A | 12H1350C | 1 |
| Cold resistance |  |  | 2.95 |  |  | 12H1350C; unit not printed in the text | 1 |
| Time to open at 100% of rated current |  | 4 |  |  | hours | 100% of rated current, 1A~5A; no opening within this time (Min) | 1 |
| Time to open at 250% of rated current |  |  |  | 5 | s | 250% of rated current, 1A~5A (Max) | 1 |
| Time to open at 300% of rated current |  | 0.1 |  | 3 | s | 300% of rated current, 1A~5A | 1 |
| Time to open at 1000% of rated current |  | 0.2 |  | 20 | ms | 1000% of rated current, 1A~5A | 1 |
| Wave soldering temperature |  |  |  | 260 | ℃ | Wave soldering, 10 s max | 1 |

## CAD (KiCad official)

- Symbol: `12H1350C`
- Footprint: `Fuse:Fuse_1206_3216Metric`
- 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files: `12h1350c-etched.step` / `12h1350c-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `12h1350c.step` / `12h1350c.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/8586197569152700416) (1 pp, sha256 `3bc54056cf91ac4e`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-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).

[Datasheet PDF](docs/12h1350c-datasheet.pdf)