component
SL1210400
Public Made by Adomby adom
TECHFUSE 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
markdownSL1210400
TECHFUSE · Resettable Fuses · 1210
SL1210400 from TECHFUSE, 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 | TECHFUSE |
| 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 |
|---|---|---|---|---|---|---|---|
| Trip current (minimum current that always trips at 25℃) | IT | 8 | A | 25℃ still air, reflow 260℃ for 20 s | 2 | ||
| Maximum continuous voltage | Vmax | 6 | V | At rated current | 2 | ||
| Maximum fault current withstand | Imax | 50 | A | At rated voltage | 2 | ||
| Maximum time to trip | Ttrip | 5 | s | At assigned current 16.0 A | 2 | ||
| Minimum resistance, initial un-soldered state | Rmin | 0.002 | Ω | Initial (un-soldered) state | 2 | ||
| Maximum resistance, initial un-soldered state | Rmax | 0.007 | Ω | Initial (un-soldered) state | 2 | ||
| Maximum resistance at 25℃ after reflow | R1max | 0.015 | Ω | 25℃, measured one hour after reflow soldering 260℃ for 20 s; PWB 0.030 in 1.5 oz copper traces | 2 | ||
| Resistance change criterion (vibration) | -5 | 5 | % | MIL-STD-883C Method 2007.1 Condition A; printed ± 5% in environmental table | 2 | ||
| Recommended storage temperature | 40 | ℃ | Recommended storage conditions | 2 | |||
| Recommended storage relative humidity | 70 | %RH | Recommended storage conditions | 2 | |||
| Hold current (maximum current that does not trip at 25℃) | IH | 4 | A | 25℃ still air, reflow 260℃ for 20 s | 2 | ||
| Typical power dissipation in still air | Pdtyp | 1.5 | W | Typical power dissipated when tripped in still air | 2 | ||
| Hold current derating | 6 | A | Maximum ambient operating temperature -40 ℃ | 3 | |||
| Hold current derating | 5.3 | A | Maximum ambient operating temperature -20 ℃ | 3 | |||
| Hold current derating | 4.6 | A | Maximum ambient operating temperature 0 ℃ | 3 | |||
| Hold current derating | 4 | A | Maximum ambient operating temperature 25 ℃ | 3 | |||
| Hold current derating | 3.4 | A | Maximum ambient operating temperature 40 ℃ | 3 | |||
| Hold current derating | 3.1 | A | Maximum ambient operating temperature 50 ℃ | 3 | |||
| Hold current derating | 2.8 | A | Maximum ambient operating temperature 60 ℃ | 3 | |||
| Hold current derating | 2.4 | A | Maximum ambient operating temperature 70 ℃ | 3 |
CAD (KiCad official)
- Symbol:
SL1210400 - Footprint:
Fuse:Fuse_1210_3225Metric - 3D model: 1210 (KiCad packages3D, STEP)
- 3D model files:
sl1210400-etched.step/sl1210400-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sl1210400.step/sl1210400.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TECHFUSE datasheet (5 pp, sha256
8ae482acc55ca041, retrieved 2026-10-17, 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).