component

F12F40

Public Made by Adom

by adom

TLC Electronic Disposable 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.

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F12F40

TLC Electronic · Disposable Fuses · 1206

F12F40 from TLC Electronic, 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 TLC Electronic
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
Operating temperature -55 125 ℃ 2
Operating time at 350%In (rated current 40A) 5 s 350%In, model F12F40 40A 2
Minimum non-operating time at 100%In (rated current 40A) 4 hrs 100%In, model F12F40 40A 2
DC breaking capacity (140A value) 140 A @24Vdc, DC interrupting rating (note 1) 2
DC breaking capacity (100A value) 100 A @24Vdc, DC interrupting rating (note 1) 2
DC breaking capacity (80A value) 80 A @24Vdc, DC interrupting rating (note 1) 2
Peak package body temperature (reflow) TP 260 ℃ Lead-free reflow; printed as 260 -5/+0 ℃; do not exceed 260℃ 4
Storage temperature 10 40 ℃ Airtight storage 5
Storage relative humidity 75 % Airtight storage, temperature 10-40℃ 5
Rated voltage 24 V DC Rated voltage as printed (24V DC) 2
Rated current In 40 A 2
Typical cold resistance 0.85 mΩ Measured at <10% of rated current, ambient 25℃ (note 2) 2
Typical voltage drop 49.3 mV 2
Typical pre-arcing I2t I2t 240 A2Sec Measured at 10In (note 3) 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 tin ① Terminal & pad Ag / Ni / Sn ② Substrate Alumina Ceramic 3

CAD (KiCad official)

  • Symbol: F12F40
  • Footprint: Fuse:Fuse_1206_3216Metric
  • 3D model: 1206 (KiCad packages3D, STEP)
  • 3D model files: f12f40-etched.step / f12f40-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); f12f40.step / f12f40.glb are the bare package body.

Provenance

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

  • Datasheet: TLC Electronic datasheet (5 pp, sha256 7a824ec51ecc0187, retrieved 2026-10-18, 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