# 1206F6A63V

**Walter Elec** · Disposable Fuses · 1206

1206F6A63V 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 1 of an unpolarised fuse; either orientation. |
| 2 | 2 | passive | Terminal 2 of an unpolarised fuse; either orientation. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Walter 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 |
|---|---|---|---|---|---|---|---|
| Pre-arcing time at 1.0In (rated current at 25℃, 0.5A to 10A rated) |  | 4 |  |  | hrs | 1.0In; rating current at 25℃; table applies to 0.5A to 10A | 4 |
| Pre-arcing time at 2.5In (rated current at 25℃, 0.5A to 10A rated) |  |  |  | 5 | sec | 2.5In; rating current at 25℃; table applies to 0.5A to 10A | 4 |
| Pre-arcing time at 3.5In (rated current at 25℃, 0.5A to 10A rated) |  |  |  | 1 | sec | 3.5In; rating current at 25℃; table applies to 0.5A to 10A | 4 |
| Operating Temperature |  | -55 |  | 150 | ℃ | Operating temperature range; derate per temperature-current curve outside 25±5℃ | 7 |
| Storage Temperature |  | 10 |  | 40 | ℃ | Airtight, relative humidity ≤75%, storage up to 2 years | 7 |
| Maximum soldering temperature (reflow) |  |  | 260 |  | ℃ | ±5℃, max. 10 sec | 8 |
| Nominal resistance | R |  | 0.012 |  | Ω | Measured with <10% rated current | 3 |
| Nominal melting I2t | I2t |  | 4.981 |  | A2s | Measured at 10 ms opening time | 3 |
| Rated current | In |  | 6 |  | A |  | 3 |
| Rated voltage |  |  | 63 |  | VDC | DC | 3 |
| Breaking capacity |  |  | 50 |  | A | V=63V DC; test current I=50A, 1A-10A rated current | 5 |

## CAD (KiCad official)

- Symbol: `1206F6A63V`
- Footprint: `Fuse:Fuse_1206_3216Metric`
- 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files: `1206f6a63v-etched.step` / `1206f6a63v-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `1206f6a63v.step` / `1206f6a63v.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/8590234714918858752) (12 pp, sha256 `5cb9770f4a2d6ea3`, retrieved 2026-10-17, 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`, 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/1206f6a63v-datasheet.pdf)