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K1206L050

KUU · Resettable Fuses · 1206

K1206L050 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 Non-polarized terminal of the resettable PPTC fuse (IH 0.50 A hold, IT 1.00 A trip at 25°C, Vmax 24 V, Imax 40 A), interchangeable with the other terminal.
2 2 passive Non-polarized terminal of the resettable PPTC fuse (IH 0.50 A hold, IT 1.00 A trip at 25°C, Vmax 24 V, Imax 40 A), interchangeable with the other terminal.

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
Holding current (IH) IH 0.5 A 25℃ still air 1
Tripping current (IT) IT 1 A 25℃ still air 1
Maximum voltage (Vmax) Vmax 24 V at rated current 1
Maximum fault current (Imax) Imax 40 A at rated voltage 1
Maximum time to trip (Ttrip) Ttrip 0.1 S at 8.00 A 1
Minimum resistance prior to trip (R min) R min 0.15 Ω prior to trip at 25℃ 1
Maximum resistance one hour post reflow (R1max) R1max 1.1 Ω measured one hour post reflow at 25℃ 1
Average ramp-up rate 3 ℃/second average ramp-up, solder reflow profile 1
Ramp-down rate 6 ℃/second ramp-down, solder reflow profile 1
Reflow profile duration 8 minutes 1
Rated working power (Pd) Pd 0.5 W 1

CAD (KiCad official)

  • Symbol: K1206L050
  • Footprint: Fuse:Fuse_1206_3216Metric
  • 3D model: 1206 (KiCad packages3D, STEP)
  • 3D model files: k1206l050-etched.step / k1206l050-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); k1206l050.step / k1206l050.glb are the bare package body.

Provenance

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

  • Datasheet: KUU datasheet (1 pp, sha256 06ffdd5c920d0737, retrieved 2026-10-17, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-5-5 (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