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Contents

README

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KNSMD012

KUU · Resettable Fuses · 1206

KNSMD012 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 One terminal of the non-polarised PTC resettable fuse, interchangeable with the other terminal; rated Vmax 60 V, Imax 10 A, hold current 0.12 A and trip current 0.29 A at 25°C.
2 2 passive Second terminal of the non-polarised PTC resettable fuse, interchangeable with the other terminal; rated Vmax 60 V, Imax 10 A, hold current 0.12 A and trip current 0.29 A at 25°C.

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
Minimum resistance prior to trip R min 1.35 Ω Minimum resistance of device prior to trip at 25℃ 1
Maximum resistance one hour post reflow R1 max 8.5 Ω Measured one hour post reflow at 25℃ 1
Holding current IH 0.12 A Maximum current at which device will not trip, 25℃ still air 1
Tripping current IT 0.29 A Minimum current at which device will trip, 25℃ still air 1
Maximum voltage device can withstand Vmax 60 V Without damage at rated current 1
Maximum fault current device can withstand I max 10 A Without damage at rated voltage 1
Maximum time to trip Ttrip 0.2 s At assigned current 1.00 A 1
Rated working power Pd 0.4 W Rated working power 1
Average ramp-up rate (reflow) 3 ℃/second Average ramp-up rate, reflow profile 1
Ramp-down rate (reflow) 6 ℃/second Ramp-down rate, reflow profile 1

CAD (KiCad official)

  • Symbol: KNSMD012
  • Footprint: Fuse:Fuse_1206_3216Metric
  • 3D model: 1206 (KiCad packages3D, STEP)
  • 3D model files: knsmd012-etched.step / knsmd012-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); knsmd012.step / knsmd012.glb are the bare package body.

Provenance

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

  • Datasheet: KUU datasheet (1 pp, sha256 cf42e4c710fa1324, 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