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Made with kicad-footprint-generator 10.0 · KiCad file format 20260206
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SL1210400

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.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sl1210400.step / sl1210400.glb are 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, 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