component
F12TH5
Public Made by Adomby adom
KUU 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
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Contents
README
markdownF12TH5
KUU · Disposable Fuses · 1206
F12TH5 from KUU, 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 | KUU |
| 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 | ℃ | Operating temperature (product description) | 1 | ||
| Rated voltage | 72 | V DC | Rated voltage for F12TH5 (72V DC) | 1 | |||
| DC breaking capacity | 50 | A | 72VDC; DC interrupting rating, time constant <50 µs, battery source, measured at rated voltage | 1 | |||
| Operating time at 250%In | 5 | s | Rated current 5A, 250%In | 1 | |||
| Operating time at 100%In | 4 | hrs | Rated current 5A, 100%In | 1 | |||
| Rated current | 5 | A | 1 | ||||
| Typical cold resistance | 22 | mΩ | Measured at <10% of rated current, ambient 25℃ | 1 | |||
| Typical voltage drop | 145 | mV | 1 | ||||
| Typical pre-arcing I2t | 4 | A2Sec | Measured at 10In current | 1 | |||
| Wave solder welding time | 3 | seconds | Soldering iron welding, wave solder, iron temperature 350℃ | 3 | |||
| Time in solder reservoir | 10 | seconds | Reservoir temperature 260℃ | 3 |
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 | 2 |
CAD (KiCad official)
- Symbol:
F12TH5 - Footprint:
Fuse:Fuse_1206_3216Metric - 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files:
f12th5-etched.step/f12th5-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);f12th5.step/f12th5.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: KUU datasheet (4 pp, sha256
0f25860677191368, 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).