# 0685T6000-01

**Bel Fuse** · Disposable Fuses · 1206

0685T6000-01 from Bel Fuse, 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 | Bel Fuse |
| 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 | °C | Operating temperature range | 3 |
| Rated voltage (AC/DC) |  |  |  | 63 | V AC/DC | 750mA-8A ratings, AC/DC | 1 |
| Interrupting rating |  | 50 |  |  | A | 2A-8A/63V AC/DC @50A or 10In, which is higher | 1 |
| Maximum volt-drop |  |  |  | 0.153 | Volt | @100% In | 2 |
| Maximum power dissipation |  |  |  | 0.92 | W | @100% In | 2 |
| Blow time (UL 248-14, 100% testing current) |  | 4 |  |  | Hrs. | UL 248-14, testing current 100% | 1 |
| Blow time (UL 248-14, 200% testing current) |  | 1 |  | 120 | Sec | UL 248-14, testing current 200% | 1 |
| Blow time (UL 248-14, 300% testing current) |  | 0.1 |  | 3 | Sec | UL 248-14, testing current 300% | 1 |
| Blow time (UL 248-14, 800% testing current) |  | 0.002 |  | 0.05 | Sec | UL 248-14, testing current 800% | 1 |
| Nominal cold resistance |  |  | 0.0145 |  | ohms |  | 2 |
| Nominal melting I²T |  |  | 6 |  | A² Sec | @10 In | 2 |
| Rated current (ampere rating) |  |  | 6 |  | A | Ampere rating for 0685T6000-XX | 2 |
| Peak reflow temperature | Tp |  |  | 260 | °C | IR reflow, IPC/JEDEC J-STD-020D, peak temperature | 3 |

## Materials and finish

As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).

| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts |  | tin | Terminations : Ag / Ni / Sn (100% Lead-free) Element Cover Coating : Lead-free Glass | 1 |

## CAD (KiCad official)

- Symbol: `0685T6000-01`
- Footprint: `Fuse:Fuse_1206_3216Metric`
- 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files: `0685t6000-01-etched.step` / `0685t6000-01-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `0685t6000-01.step` / `0685t6000-01.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Bel Fuse datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590904275675930624) (4 pp, sha256 `69b5faffdda3eaa0`, retrieved 2026-10-20, 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/0685t6000-01-datasheet.pdf)