PRF18BC471QS5RB from Murata Electronics, in a 0603. 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	PTC thermistor terminal 1. Two-terminal chip resistor-style device; polarity is not defined. Connected via SMD land pattern on 1.6x0.8 mm (0603) body.
2	2	passive	PTC thermistor terminal 2. Two-terminal chip resistor-style device; polarity is not defined.

Key specifications

Parameter	Value
Manufacturer	Murata Electronics
Package	0603
Category	Sensor
Pins	2

Ordering variants

Same part, different packaging or reel option.

PRF18BC471QS5RB

CAD (KiCad official)

Symbol: PRF18BC471QS5RB
Footprint: Resistor_SMD:R_0603_1608Metric
3D model: 0603 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`prf18bc471qs5rb.step`	40 KB	You want the bare part, or you mark your own boards.
`prf18bc471qs5rb-etched.step`	2.6 MB	You want the part with `PRF18BC471QS5RB` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 648 faces against 26 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

Datasheet: Murata Electronics datasheet (3 pp, sha256 8d842d6d045d2bc0, retrieved 2026-08-17, tier: lcsc)
Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
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