component
1206L400
Public Made by Adomby adom
Littelfuse Resettable Fuses, 1206. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 3d ago |
| viewers | 3d ago |
| 1206l400-etched.glb | 3d ago |
| 1206l400-etched.step | 3d ago |
| 1206l400-hero.glb | 3d ago |
| 1206l400-hero.overlay.json | 3d ago |
| 1206l400.glb | 3d ago |
| 1206l400.kicad_mod | 3d ago |
| 1206l400.kicad_sym | 3d ago |
| 1206l400.lbr | 3d ago |
| 1206l400.step | 3d ago |
| package.json | 3d ago |
| page.json | 3d ago |
| README.md | 3d ago |
1206L400
Littelfuse · Resettable Fuses · 1206
1206L400 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 |
|---|---|---|---|---|---|---|---|
| Minimum resistance (R min) | R min | 0.001 | Ω | 2 | |||
| Maximum resistance after trip (R1max) | R1max | 0.016 | Ω | 2 | |||
| Maximum voltage (V max) | V max | 6 | Vdc | 2 | |||
| Maximum fault current (I max) | I max | 50 | A | 2 | |||
| Operating temperature | -40 | 85 | °C | Environmental Specifications: Operating Temperature | 4 | ||
| Maximum device surface temperature in tripped state | 125 | °C | In tripped state | 4 | |||
| Passive aging resistance change (typical) | -10 | 10 | % | +85°C, 1000 hours passive aging; -/+10% typical resistance change | 4 | ||
| Humidity aging resistance change (typical) | -15 | 15 | % | +85°C, 85% R.H., 100 hours; -/+15% typical resistance change | 4 | ||
| Thermal shock resistance change (typical) | -30 | % | MIL-STD-202 Method 107, +85°C/-40°C 20 times; -30% typical resistance change | 4 | |||
| Peak classification reflow temperature (Pb-free) | TP | 260 | °C | Pb-free assembly reflow profile; printed as 260+0/-5 °C | 4 | ||
| Hold current | I hold | 4 | A | 2 | |||
| Trip current | I trip | 8 | A | 2 | |||
| Maximum time-to-trip current | 20 | A | Time-to-trip test: 2.00 s | 2 | |||
| Power dissipation (typical) | P d | 0.8 | W | 2 |
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 | Terminal Material Solder-Plated Copper | 4 |
CAD (KiCad official)
- Symbol:
1206L400 - Footprint:
Fuse:Fuse_1206_3216Metric - 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files:
1206l400-etched.step/1206l400-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);1206l400.step/1206l400.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Littelfuse datasheet (8 pp, sha256
ba01087abeed0a81, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarytwo-terminal convention(convention), consensusoff(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).