component
F12F40
Public Made by Adomby 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.
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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Contents
README
markdownF12F40
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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);f12f40.step/f12f40.glbare 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, 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).