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PRF Murata PTC Thermistor (POSISTOR)
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Murata PRF series ptc thermistor (posistor) — 96 part numbers.
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At a Glance
- 96 part numbers in this series
- Operating temperature -40～150℃
The Murata PRF series covers 96 part numbers. All parts in the series share the same construction and qualification, and differ in the values listed in the table below — so a design can move up or down the range without changing footprint.
Part Number List
| Part Number | Specification |
|---|---|
| PRF03BA102QB7RL | 32V,125℃ ±5℃ (at 10kΩ),1kΩ ±50%,-40～150℃,SMD |
| PRF03BA102QS7RL | 32V,125℃ ±5℃ (at 10kΩ),1kΩ ±50%,-40～150℃,SMD |
| PRF03B102QB7RL | 32V,115℃ ±5℃ (at 10kΩ),1kΩ ±50%,-40～140℃,SMD |
| PRF03B102QS7RL | 32V,115℃ ±5℃ (at 10kΩ),1kΩ ±50%,-40～150℃,SMD |
| PRF03B541NB7RL | 32V,115℃ ±5℃ (at 4.7kΩ),540Ω ±30%,-20～150℃,SMD |
| PRF03BC102QB7RL | 32V,105℃ ±5℃ (at 10kΩ),1kΩ ±50%,-40～130℃,SMD |
| PRF03BC102QS7RL | 32V,105℃ ±5℃ (at 10kΩ),1kΩ ±50%,-40～150℃,SMD |
| PRF03BD102QB7RL | 32V,95℃ ±5℃ (at 10kΩ),1kΩ ±50%,-40～120℃,SMD |
| PRF03BD102QS7RL | 32V,95℃ ±5℃ (at 10kΩ),1kΩ ±50%,-40～150℃,SMD |
| PRF15AR102RB6RC | 32V,135℃ ±5℃ (at 10kΩ),1kΩ ±50%,-40～160℃,SMD |
| PRF15BA102RB6RC | 32V,125℃ ±5℃ (at 10kΩ),1kΩ ±50%,-40～150℃,SMD |
| PRF15BA471QB1RC | 32V,125℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-20～140℃,SMD |
| PRF15B102RB6RC | 32V,115℃ ±5℃ (at 10kΩ),1kΩ ±50%,-40～140℃,SMD |
| PRF15B103RB6RC | 32V,130℃ ±3℃ (at 4.7MΩ),10kΩ ±50%,-20～140℃,SMD |
| PRF15B471QB1RC | 32V,115℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-20～130℃,SMD |
| PRF15BC102RB6RC | 32V,105℃ ±5℃ (at 10kΩ),1kΩ ±50%,-40～130℃,SMD |
| PRF15BC471QB1RC | 32V,105℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-20～120℃,SMD |
| PRF15BD102RB6RC | 32V,95℃ ±5℃ (at 10kΩ),1kΩ ±50%,-40～120℃,SMD |
| PRF15BE102RB6RC | 32V,85℃ ±5℃ (at 10kΩ),1kΩ ±50%,-40～110℃,SMD |
| PRF15BE103RB6RC | 32V,100℃ ±3℃ (at 4.7MΩ),10kΩ ±50%,-20～110℃,SMD |
| PRF15BF102RB6RC | 32V,75℃ ±5℃ (at 10kΩ),1kΩ ±50%,-40～100℃,SMD |
| PRF15BG102RB6RC | 32V,65℃ ±5℃ (at 10kΩ),1kΩ ±50%,-40～90℃,SMD |
| PRF15BG103RB6RC | 32V,80℃ ±3℃ (at 4.7MΩ),10kΩ ±50%,-20～90℃,SMD |
| PRF18AR471QB1RB | 32V,135℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-20～160℃,SMD |
| PRF18AR471QB5RB | 32V,135℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-20～160℃,SMD |
| PRF18AR471QS2RB | 32V,135℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-40～150℃,SMD |
| PRF18AR471QS5RB | 32V,135℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-40～150℃,SMD |
| PRF18AS471QB1RB | 32V,145℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-20～160℃,SMD |
| PRF18AS471QB5RB | 32V,145℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-20～160℃,SMD |
| PRF18AS471QS2RB | 32V,145℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-40～150℃,SMD |
| PRF18AS471QS5RB | 32V,145℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-40～150℃,SMD |
| PRF18BA471QB1RB | 32V,125℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-20～150℃,SMD |
| PRF18BA471QB5RB | 32V,125℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-20～150℃,SMD |
| PRF18BA471QS2RB | 32V,125℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-40～150℃,SMD |
| PRF18BA471QS5RB | 32V,125℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-40～150℃,SMD |
| PRF18B471QB1RB | 32V,115℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-20～140℃,SMD |
| PRF18B471QB5RB | 32V,115℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-20～140℃,SMD |
| PRF18B471QS2RB | 32V,115℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-40～150℃,SMD |
| PRF18B471QS5RB | 32V,115℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-40～150℃,SMD |
| PRF18B471RB1RB | 32V,115℃ ±3℃ (at 4.7kΩ),470Ω ±50%,-20～130℃,SMD |
| PRF18B471RB5RB | 32V,115℃ ±3℃ (at 4.7kΩ),470Ω ±50%,-20～140℃,SMD |
| PRF18B471RS2RB | 32V,115℃ ±3℃ (at 4.7kΩ),470Ω ±50%,-40～150℃,SMD |
| PRF18B471RS5RB | 32V,115℃ ±3℃ (at 4.7kΩ),470Ω ±50%,-40～150℃,SMD |
| PRF18BC471MB7RB | 32V,105℃ ±3℃ (at 4.7kΩ),470Ω ±20%,-40～130℃,SMD |
| PRF18BC471QB1RB | 32V,105℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-20～130℃,SMD |
| PRF18BC471QB5RB | 32V,105℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-20～130℃,SMD |
| PRF18BC471QS2RB | 32V,105℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-40～150℃,SMD |
| PRF18BC471QS5RB | 32V,105℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-40～150℃,SMD |
| PRF18BC471RB1RB | 32V,105℃ ±3℃ (at 4.7kΩ),470Ω ±50%,-20～120℃,SMD |
| PRF18BC471RB5RB | 32V,105℃ ±3℃ (at 4.7kΩ),470Ω ±50%,-20～130℃,SMD |
| PRF18BC471RS2RB | 32V,105℃ ±3℃ (at 4.7kΩ),470Ω ±50%,-40～150℃,SMD |
| PRF18BC471RS5RB | 32V,105℃ ±3℃ (at 4.7kΩ),470Ω ±50%,-40～150℃,SMD |
| PRF18BD471MB7RB | 32V,95℃ ±3℃ (at 4.7kΩ),470Ω ±20%,-40～120℃,SMD |
| PRF18BD471QB1RB | 32V,95℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-20～120℃,SMD |
| PRF18BD471QB5RB | 32V,95℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-20～120℃,SMD |
| PRF18BD471QS2RB | 32V,95℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-40～150℃,SMD |
| PRF18BD471QS5RB | 32V,95℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-40～150℃,SMD |
| PRF18BD471RB1RB | 32V,95℃ ±3℃ (at 4.7kΩ),470Ω ±50%,-20～110℃,SMD |
| PRF18BD471RB5RB | 32V,95℃ ±3℃ (at 4.7kΩ),470Ω ±50%,-20～120℃,SMD |
| PRF18BD471RS2RB | 32V,95℃ ±3℃ (at 4.7kΩ),470Ω ±50%,-40～150℃,SMD |
| PRF18BD471RS5RB | 32V,95℃ ±3℃ (at 4.7kΩ),470Ω ±50%,-40～150℃,SMD |
| PRF18BE471MB7RB | 32V,85℃ ±3℃ (at 4.7kΩ),470Ω ±20%,-40～110℃,SMD |
| PRF18BE471QB1RB | 32V,85℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-20～110℃,SMD |
| PRF18BE471QB5RB | 32V,85℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-20～110℃,SMD |
| PRF18BE471QS2RB | 32V,85℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-40～150℃,SMD |
| PRF18BE471QS5RB | 32V,85℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-40～150℃,SMD |
| PRF18BE471RB1RB | 32V,85℃ ±3℃ (at 4.7kΩ),470Ω ±50%,-20～100℃,SMD |
| PRF18BE471RB5RB | 32V,85℃ ±3℃ (at 4.7kΩ),470Ω ±50%,-20～110℃,SMD |
| PRF18BE471RS2RB | 32V,85℃ ±3℃ (at 4.7kΩ),470Ω ±50%,-40～150℃,SMD |
| PRF18BE471RS5RB | 32V,85℃ ±3℃ (at 4.7kΩ),470Ω ±50%,-40～150℃,SMD |
| PRF18BF471QB1RB | 32V,75℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-20～100℃,SMD |
| PRF18BF471QB5RB | 32V,75℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-20～100℃,SMD |
| PRF18BF471QS2RB | 32V,75℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-40～150℃,SMD |
| PRF18BF471QS5RB | 32V,75℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-40～150℃,SMD |
| PRF18BF471RB5RB | 32V,75℃ ±3℃ (at 4.7kΩ),470Ω ±50%,-20～100℃,SMD |
| PRF18BF471RS5RB | 32V,75℃ ±3℃ (at 4.7kΩ),470Ω ±50%,-40～150℃,SMD |
| PRF18BG471QB1RB | 32V,65℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-20～90℃,SMD |
| PRF18BG471QB5RB | 32V,65℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-20～90℃,SMD |
| PRF18BG471QS2RB | 32V,65℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-40～150℃,SMD |
| PRF18BG471QS5RB | 32V,65℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-40～150℃,SMD |
| PRF18BG471RB5RB | 32V,65℃ ±3℃ (at 4.7kΩ),470Ω ±50%,-20～90℃,SMD |
| PRF18BG471RS5RB | 32V,65℃ ±3℃ (at 4.7kΩ),470Ω ±50%,-40～150℃,SMD |
| PRF21AR471QB1RA | 32V,135℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-20～150℃,SMD |
| PRF21AR471QB5RA | 32V,135℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-20～150℃,SMD |
| PRF21AS471QB1RA | 32V,145℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-20～160℃,SMD |
| PRF21AS471QB5RA | 32V,145℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-20～160℃,SMD |
| PRF21BA471QB1RA | 32V,125℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-20～140℃,SMD |
| PRF21BA471QB5RA | 32V,125℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-20～140℃,SMD |
| PRF21B471QB1RA | 32V,115℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-20～130℃,SMD |
| PRF21B471QB5RA | 32V,115℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-20～130℃,SMD |
| PRF21BC471QB1RA | 32V,105℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-20～120℃,SMD |
| PRF21BC471QB5RA | 32V,105℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-20～120℃,SMD |
| PRF21BD471QB1RA | 32V,95℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-20～110℃,SMD |
| PRF21BD471QB5RA | 32V,95℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-20～110℃,SMD |
| PRF21BE471QB1RA | 32V,85℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-20～100℃,SMD |
| PRF21BE471QB5RA | 32V,85℃ ±5℃ (at 4.7kΩ),470Ω ±50%,-20～100℃,SMD |
96 part numbers in this series, sorted by part number.
Selection Notes
- Select by the parameter limits in the table, then confirm the derating curves in the full specification before committing a design.
- Package and footprint dimensions are listed per part. Verify against your land pattern — the same series can ship in several case sizes.
- Where the series spans automotive and consumer grades, check the part number suffix. The electrical values may match while the qualification does not.
Common Questions
How many part numbers are in the PRF series?
96. The table above lists every one, sorted by part number.
What do the parts in the PRF series have in common?
They share the same ptc thermistor (posistor) construction and case-size family; the differences are the electrical values shown per row.
Where can I find the full specification for a PRF part?
Each part number links to Murata's official product page, which carries the detailed specification sheet, reliability data and simulation models.
Official documentation: PRF03BA102QB7RL on murata.com — detailed specification sheet, reliability test data and S-parameter / SPICE models.
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