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Contents

README

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KNSMD050

KUU · Resettable Fuses · 1206

KNSMD050 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
Holding current (maximum current at which device will not trip) IH 0.5 A 25℃ still air 1
Tripping current (minimum current at which device will trip) IT 1 A 25℃ still air 1
Maximum voltage device can withstand without damage Vmax 16 V at rated current 1
Maximum fault current device can withstand without damage I max 40 A at rated voltage 1
Maximum time to trip T trip 0.1 s at assigned current of 8.00 A 1
Minimum resistance of device prior to trip R min 0.15 Ω at 25℃ 1
Maximum resistance one hour post reflow R1 max 0.75 Ω measured one hour post reflow at 25℃ 1
Maximum ambient operating temperature range (thermal derating table) -40 85 ℃ thermal derating table, ambient temperature from -40℃ to 85℃ 1
Reflow peak temperature (recommended profile) 260 ℃ solder reflow recommended profile 1
Average ramp-up rate 3 ℃/second solder reflow recommended profile 1
Ramp-down rate 6 ℃/second solder reflow recommended profile 1
Rated working power Pd 0.4 W 1

CAD (KiCad official)

  • Symbol: KNSMD050
  • Footprint: Fuse:Fuse_1206_3216Metric
  • 3D model: 1206 (KiCad packages3D, STEP)
  • 3D model files: knsmd050-etched.step / knsmd050-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); knsmd050.step / knsmd050.glb are the bare package body.

Provenance

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

  • Datasheet: KUU datasheet (1 pp, sha256 82488d1d5c54c668, retrieved 2026-10-16, 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