component

EFR32MG21A020F512IM32-B

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SILICON LABS RF Transceiver ICs, QFN-32-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentrf & radioefr32mg21a020f512im32-bfactory-2.0.0extractor-text

Verified EFR32MG21A020F512IM32-B

by Ray · last 30 Oct 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

30 Oct 2026RayPublished by the parts factory: tier lcsc, 33 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: EFR32MG21A020F512IM32-B · QFN-32-EP(4x4) · 33 pins
  • ✓copper: 33 copper pads, none touching another net
  • ✓datasheet: all 33 pin names found in the 76-page datasheet
  • ✓distributor: lcsc C1558434, digikey EFR32MG21A020F512IM32-B-ND, mouser 634-MG21A020F51232B
  • ✓family: QFN-32-1EP_4x4mm_P0.4mm_EP2.9x2.9mm
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-jrcjxd0k/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓pads: 33 pins = 33 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 33 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ efr32mg21a020f512im32-b.kicad_sym✓ efr32mg21a020f512im32-b.kicad_mod✓ efr32mg21a020f512im32-b.step
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efr32mg21a020f512im32-b / efr32mg21a020f512im32-b-etched.step
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Ray efr32mg21a020f512im32-b: factory component page (tier=lcsc) cb69841

Binary file: efr32mg21a020f512im32-b-etched.step

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