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PRF21BD471QB5RA

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Murata Electronics PTC Thermistors, 0805. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

Schematic Symbol

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PCB Footprint

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Datasheet

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Contents

README

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PRF21BD471QB5RA

Murata Electronics · PTC Thermistors · 0805

PRF21BD471QB5RA from Murata Electronics, in a 0805. 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 1 passive Terminal 1 of the PTC thermistor element. Nominal 470 Ω ±50% at 25°C; resistance rises sharply above the 80°C Curie point. Non-polarized - the two terminals are interchangeable. Max working voltage 32 VDC.
2 2 passive Terminal 2 of the PTC thermistor element. Nominal 470 Ω ±50% at 25°C; resistance rises sharply above the 80°C Curie point. Non-polarized - the two terminals are interchangeable. Max working voltage 32 VDC.

Key specifications

Parameter Value
Manufacturer Murata Electronics
Package 0805
Category Sensor
Pins 2

Ordering variants

Same part, different packaging or reel option.

  • PRF21BD471QB5RA
  • PRF21BD471QB5RAPRF18BD471QB5RB
  • PRF21BD471QB5RAPRF18BD471RB5RB
  • PRF21BD471QB5RAPRF15BD102RB6RC
  • PRF21BD471QB5RAPRF15BD103RB6RC

CAD (KiCad official)

  • Symbol: PRF21BD471QB5RA
  • Footprint: Resistor_SMD:R_0805_2012Metric
  • 3D model: 0805 (KiCad packages3D, STEP)
  • 3D model files: prf21bd471qb5ra-etched.step / prf21bd471qb5ra-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); prf21bd471qb5ra.step / prf21bd471qb5ra.glb are the bare package body.

Provenance

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

  • Datasheet: Murata Electronics datasheet (16 pp, sha256 a29cd6200c656636, retrieved 2026-08-17, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF