component

B72210S0271K101

Public Made by Adom

by adom

TDK Varistors, THT, P=7.5mm. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentcircuit protectionb72210s0271k101factory-2.0.0extractor-text

Verified B72210S0271K101

by Ray · last 5 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

5 Nov 2026RayPublished by the parts factory: tier mfr, 2 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: B72210S0271K101 · THT, P=7.5mm · 2 pins
  • ✓copper: 2 copper pads, none touching another net
  • ✓datasheet: unpolarised two-terminal part: pins 1 and 2 by library convention, no names to check
  • ✓distributor: lcsc C54321676, digikey 495-3786-ND, mouser 871-B72210S271K101
  • ✓family: TDK_B72210
  • ✓files: 6 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-jikp8cww/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 1 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓pads: 2 pins = 2 pads
  • ✓pose: 1 STEP(s) Z-up, seated, centred
  • ✓symbol: 2 pins agree
  • ✓symbol_text: no pin names collide
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ b72210s0271k101.kicad_sym✓ b72210s0271k101.kicad_mod✓ b72210s0271k101.step
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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

markdown

B72210S0271K101

TDK · Varistors · THT, P=7.5mm

B72210S0271K101 from TDK, in a THT, P=7.5mm. 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 Non-polar tinned wire lead (d 0.8 mm ±0.05, l min 25.0 mm) at 7.5 mm lead spacing; rated 275 VRMS / 350 VDC, varistor voltage 430 V ±10% at 1 mA.
2 2 passive Non-polar tinned wire lead (d 0.8 mm ±0.05, l min 25.0 mm) at 7.5 mm lead spacing; rated 275 VRMS / 350 VDC, max. surge current 2500 A (8/20 µs, 1 time).

Key specifications

Parameter Value
Manufacturer TDK
Package THT, P=7.5mm
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
Varistor voltage tolerance ΔVV -10 10 % 10
Varistor voltage VV 430 V 1 mA 10
Maximum clamping voltage vc,max 710 V ic = 25.0 A 10
Typical capacitance Ctyp 220 pF 1 kHz 10
Maximum surge current, 1 time imax 2500 A 8/20 µs, 1 time, TA = 105 °C 9
Nominal discharge current In 1500 A 8/20 µs, 15 times, TA = 105 °C 9
Maximum energy absorption Wmax 43 J 2 ms, TA = 105 °C 9
Maximum average power dissipation Pmax 0.4 W TA = 105 °C 9
Maximum AC operating voltage VRMS 275 V TA = 105 °C 9
Maximum DC operating voltage VDC 350 V TA = 105 °C 9
Operating temperature -40 105 °C IEC 61051 2
Storage temperature -40 125 °C 2
Electric strength 2.5 kVRMS IEC 61051 2
Insulation resistance Rins 100 MΩ IEC 61051 2

CAD (KiCad official)

  • Symbol: B72210S0271K101
  • Footprint: Adom_Gen:TDK_B72210
  • 3D model: THT, P=7.5mm (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: TDK datasheet (47 pp, sha256 0f741b20f56ee3e3, retrieved 2026-11-05, tier: manufacturer)
  • 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