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Contents

README

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KBTR04D3

KUU · Varistors · 0402

KBTR04D3 from KUU, in a 0402. 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 electrode of the bidirectional chip varistor (Ag with Ni-Sn plating); max working voltage 18.0 VDC / 12.7 VAC RMS, varistor voltage 31.0-38.0 V at 1 mA DC.
2 2 passive Second terminal electrode of the chip varistor, interchangeable with the first; max clamping voltage 58 V (8/20 µs) and 70 V (ESD), peak current 1 A (8/20 µs).

Key specifications

Parameter Value
Manufacturer KUU
Package 0402
Category Circuit Protection
Pins 2

CAD (KiCad official)

  • Symbol: KBTR04D3
  • Footprint: Resistor_SMD:R_0402_1005Metric
  • 3D model: 0402 (KiCad packages3D, STEP)
  • 3D model files: kbtr04d3-etched.step / kbtr04d3-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); kbtr04d3.step / kbtr04d3.glb are the bare package body.

Provenance

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

  • Datasheet: KUU datasheet (5 pp, sha256 688b29d27f772bfa, retrieved 2026-10-09, 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