# 1206T1A500063R

**Walter Elec** · Disposable Fuses · 1206

1206T1A500063R 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 1.0A to 10A) |  | 4 |  |  | hrs | Rated current 1.0A to 10A, at 25℃, 1.0In | 4 |
| Pre-arcing time at 2.0In (rated 1.0A to 10A) |  | 1 |  | 120 | sec | Rated current 1.0A to 10A, at 25℃, 2.0In | 4 |
| Pre-arcing time at 3.0In (rated 1.0A to 10A) |  | 0.1 |  | 3 | sec | Rated current 1.0A to 10A, at 25℃, 3.0In | 4 |
| Pre-arcing time at 8.0In (rated 1.0A to 10A) |  | 2 |  | 50 | ms | Rated current 1.0A to 10A, at 25℃, 8.0In | 4 |
| Pre-arcing time at 10.0In (rated 1.0A to 10A) |  | 0.2 |  | 20 | ms | Rated current 1.0A to 10A, at 25℃, 10.0In | 4 |
| Operating temperature range |  | -55 |  | 150 | ℃ |  | 7 |
| Storage temperature range |  | 10 |  | 40 | ℃ | Airtight, relative humidity ≤75%, storage up to 2 years | 7 |
| Nominal resistance | R |  | 0.11 |  | Ω | Measured with <10% rated current | 3 |
| Rated current (1.50A type) |  |  | 1.5 |  | A |  | 3 |
| Nominal melting I2t | I2t |  | 0.583 |  | A2 s | Measured at 10 msec opening time | 3 |
| Rated voltage |  |  | 63 |  | VDC |  | 3 |

## CAD (KiCad official)

- Symbol: `1206T1A500063R`
- Footprint: `Fuse:Fuse_1206_3216Metric`
- 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files: `1206t1a500063r-etched.step` / `1206t1a500063r-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `1206t1a500063r.step` / `1206t1a500063r.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/8588911190848516096) (12 pp, sha256 `693c37b1fae72362`, retrieved 2026-10-18, 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/1206t1a500063r-datasheet.pdf)