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Contents

README

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SMD75XM

SURGING · Gas Discharge Tube Arresters (GDT) · 1812

SMD75XM from SURGING, 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 GDT electrode 1; DC spark-over voltage 75 V (55-95 V range), max impulse spark-over 600 V, nominal impulse discharge current 2000 A (8/20 µs), insulation resistance ≥1 GΩ at 50 V DC, max capacitance 0.5 pF at 1 MHz.
2 A2 passive GDT electrode 2; electrically symmetric with pin 1; same spark-over, discharge current, and capacitance ratings apply.

Key specifications

Parameter Value
Manufacturer SURGING
Package 1812
Category Circuit Protection
Pins 2

CAD (KiCad official)

  • Symbol: SMD75XM
  • Footprint: Resistor_SMD:R_1812_4532Metric
  • 3D model: 1812 (KiCad packages3D, STEP)
  • 3D model files: smd75xm-etched.step / smd75xm-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smd75xm.step / smd75xm.glb are the bare package body.

Provenance

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

  • Datasheet: SURGING datasheet (5 pp, sha256 3b28909cb836032e, 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