component
1210L450SLWR
Public Made by Adomby adom
Littelfuse Resettable Fuses, 1210. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdown1210L450SLWR
Littelfuse · Resettable Fuses · 1210
1210L450SLWR from Littelfuse, in a 1210. 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 | 1210 |
| 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 trip current | Itrip | 9 | A | 20℃ still air | 1 | ||
| Minimum resistance, initial (un-soldered) state | Rmin | 0.001 | Ω | Un-soldered initial state | 1 | ||
| Maximum hold current | Ihold | 4.5 | A | 20℃ still air; maximum current device passes without tripping | 1 | ||
| Maximum resistance at 20℃ after trip or reflow | R1max | 0.014 | Ω | 20℃, measured one hour after tripping or reflow soldering of 260℃ for 20 sec | 1 | ||
| Maximum voltage withstand without damage at rated current | Vmax | 6 | Vdc | At rated current (Imax) | 1 | ||
| Maximum fault current withstand without damage at rated voltage | Imax | 50 | A | At rated voltage (Vmax) | 1 | ||
| Maximum power dissipated in tripped state | Pd max | 1 | W | Tripped state, 20℃ still air | 1 | ||
| Maximum time-to-trip | 2 | s | At 22.50 A current | 1 |
CAD (KiCad official)
- Symbol:
1210L450SLWR - Footprint:
Fuse:Fuse_1210_3225Metric - 3D model: 1210 (KiCad packages3D, STEP)
- 3D model files:
1210l450slwr-etched.step/1210l450slwr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);1210l450slwr.step/1210l450slwr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Littelfuse datasheet (2 pp, sha256
1823d8c53345ec10, 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).