component

B72580E0250K062

Public Made by Adom

by adom

TDK Varistors, 1812. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.

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Made with kicad-footprint-generator 10.0 · KiCad file format 20260206
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B72580E0250K062

TDK · Varistors · 1812

B72580E0250K062 from TDK, in a 1812. 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 resistor; either orientation.
2 2 passive Terminal 2 of an unpolarised resistor; either orientation.

Key specifications

Parameter Value
Manufacturer TDK
Package 1812
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
Maximum RMS operating voltage VRMS,max 25 V 9
Maximum DC operating voltage VDC,max 31 V 9
Maximum energy absorption Wmax 3700 mJ 2 ms 9
Maximum power dissipation Pdiss,max 15 mW 9
Maximum surge current Isurge,max 800 A 8/20 µs 10
Maximum clamping voltage Vclamp,max 65 V Iclamp 5 A (8/20 µs) 10
Varistor voltage tolerance ΔVV -10 10 % 9
Operating temperature Top -55 150 °C Single chip (climatic category) 4
Storage temperature LCT/UCT -55 150 °C 4
Response time tresp 0.5 ns 4
Typical capacitance Ctyp 2500 pF f = 1 kHz (note 2: f = 1 kHz for C ≥ 100 pF) 10

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts nickel  RoHS-compatible, lead-free  Nickel barrier suitable for lead-free soldering 2

CAD (KiCad official)

  • Symbol: B72580E0250K062
  • Footprint: Resistor_SMD:R_1812_4532Metric
  • 3D model: 1812 (KiCad packages3D, STEP)
  • 3D model files: b72580e0250k062-etched.step / b72580e0250k062-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); b72580e0250k062.step / b72580e0250k062.glb are the bare package body.

Provenance

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

  • Datasheet: TDK datasheet (81 pp, sha256 4eb6950d8ffc27e0, retrieved 2026-10-18, 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