# 1206L035

**Littelfuse** · Resettable Fuses · 1206

1206L035 from Littelfuse, 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 | Littelfuse |
| 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 |
|---|---|---|---|---|---|---|---|
| Hold current at 20°C ambient | I hold |  |  | 0.35 | A | 20°C ambient, still air (hold-current table, 20°C column) | 2 |
| Hold current at -40°C ambient | I hold |  |  | 0.5 | A | -40°C ambient (hold-current table, -40°C column) | 2 |
| Hold current at -20°C ambient | I hold |  |  | 0.45 | A | -20°C ambient (hold-current table, -20°C column) | 2 |
| Hold current at 0°C ambient | I hold |  |  | 0.4 | A | 0°C ambient (hold-current table, 0°C column) | 2 |
| Hold current at 40°C ambient | I hold |  |  | 0.3 | A | 40°C ambient (hold-current table, 40°C column) | 2 |
| Hold current at 50°C ambient | I hold |  |  | 0.27 | A | 50°C ambient (hold-current table, 50°C column) | 2 |
| Hold current at 60°C ambient | I hold |  |  | 0.24 | A | 60°C ambient (hold-current table, 60°C column) | 2 |
| Hold current at 70°C ambient | I hold |  |  | 0.21 | A | 70°C ambient (hold-current table, 70°C column) | 2 |
| Hold current at 85°C ambient | I hold |  |  | 0.15 | A | 85°C ambient (hold-current table, 85°C column) | 2 |
| Operating/storage temperature |  | -40 |  | 85 | °C | Operating/Storage Temperature range (Environmental Specifications) | 3 |
| Maximum device surface temperature in tripped state |  |  |  | 125 | °C | In tripped state | 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 | Copper | tin | Terminal Material Solder-Plated Copper (Solder Material: Matte Tin | 3 |

## CAD (KiCad official)

- Symbol: `1206L035`
- Footprint: `Fuse:Fuse_1206_3216Metric`
- 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files: `1206l035-etched.step` / `1206l035-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `1206l035.step` / `1206l035.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Littelfuse datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588900368524304384) (5 pp, sha256 `b82e54297264f9a1`, retrieved 2026-10-17, 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/1206l035-datasheet.pdf)