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Contents

README

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SMD4532-200M

DOWO · Gas Discharge Tube Arresters (GDT) · 1812

SMD4532-200M from DOWO, in a 1812. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 A1 passive Gas discharge tube terminal 1; device conducts bidirectionally when voltage across terminals exceeds DC breakdown voltage of 160-240 V (200 V nominal at 100 V/s) and clamps impulse spark-over voltage to ≤650 V at 1 kV/µs; rated 2000 A (8/20 µs, 2×) and 6 kV (10/700 µs, 5×); insulation resistance ≥1 GΩ (DC 100 V); capacitance ≤1 pF (1 MHz).
2 A2 passive Gas discharge tube terminal 2; electrically symmetric with terminal 1; same breakdown, surge, and insulation ratings; operating temperature -40 to +90 °C.

Key specifications

Parameter Value
Manufacturer DOWO
Package 1812
Category Circuit Protection
Pins 2

CAD (KiCad official)

  • Symbol: SMD4532-200M
  • Footprint: Resistor_SMD:R_1812_4532Metric
  • 3D model: 1812 (KiCad packages3D, STEP)
  • 3D model files: smd4532-200m-etched.step / smd4532-200m-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smd4532-200m.step / smd4532-200m.glb are the bare package body.

Provenance

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

  • Datasheet: DOWO datasheet (5 pp, sha256 1a44910a733a8cd6, retrieved 2026-09-22, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-sonnet-4-6 (text+vision), consensus claude-opus-4-7 (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