# 1206T4A63V

**Walter Elec** · Disposable Fuses · 1206

1206T4A63V from Walter 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 electrode (Cu/Ni/Sn) at one end of the 3.20±0.25 mm body, in series with the fuse element; rated 4A, 63VDC, breaking capacity 50A at 63VDC, non-polarized. |
| 2 | 2 | passive | Terminal electrode (Cu/Ni/Sn) at the opposite end of the body, in series with the fuse element; rated 4A, 63VDC, breaking capacity 50A at 63VDC, non-polarized. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Walter Elec |
| Package | 1206 |
| Category | Circuit Protection |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `1206T4A63V`
- Footprint: `Fuse:Fuse_1206_3216Metric`
- 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files: `1206t4a63v-etched.step` / `1206t4a63v-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `1206t4a63v.step` / `1206t4a63v.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Walter Elec datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588883996754759680) (12 pp, sha256 `e88573310eecb119`, retrieved 2026-10-09, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **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/1206t4a63v-datasheet.pdf)