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Equivalent & Substitute Parts for PRF18BE471RB5RB
Part Overview
The Murata Electronics PRF18BE471RB5RB is an active PTC thermistor in the POSISTOR® PRF18/21 series, rated at 470 Ohms with ±50% tolerance in 0603 (1608 Metric) surface mount packaging. This component operates across -20°C to 110°C and is supplied in Tape & Reel format with ROHS3 compliance and unlimited moisture sensitivity rating.
Equivalent and substitute parts are identified based on matching electrical specifications (470 Ohms resistance, ±50% tolerance), mechanical compatibility (0603 surface mount package), and functional equivalence within the PTC thermistor category. Substitutes include both standard industrial-grade and automotive-qualified variants from EPCOS - TDK Electronics.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance @ 25°C | 470 Ohms |
| Resistance Tolerance | ±50% |
| Operating Temperature Range | -20°C ~ 110°C |
| Package / Case | 0603 (1608 Metric) |
| Mounting Type | Surface Mount |
| Moisture Sensitivity Level | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitution eligibility is determined by the following criteria:
Electrical Equivalence: All substitute parts maintain 470 Ohms resistance at 25°C with ±50% tolerance, ensuring functional interchangeability in circuit applications.
Mechanical Compatibility: All substitutes use 0603 (1608 Metric) surface mount packaging with identical footprints and mounting requirements.
Environmental Compliance: All parts are ROHS3 compliant with MSL 1 (Unlimited) rating, matching the original part's environmental specifications.
Temperature Operating Range: The original PRF18BE471RB5RB operates -20°C to 110°C. EPCOS B59601 series substitutes extend this range to -40°C to 125°C, providing broader thermal coverage. EPCOS B59641 series (automotive-grade) also operate -40°C to 125°C with AEC-Q200 qualification.
Packaging Format: Substitutes are available in both Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel® formats, accommodating different procurement and assembly workflows.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Series | Resistance @ 25°C | Tolerance | Operating Temperature | Package | Packaging Format | Grade | Inventory (Pcs) |
|---|---|---|---|---|---|---|---|---|---|
| PRF18BE471RB5RB | Murata Electronics | POSISTOR® PRF18/21 | 470 Ohms | ±50% | -20°C ~ 110°C | 0603 (1608 Metric) | Tape & Reel (TR) | Industrial | 4400 |
| B59601A0075A062 | EPCOS - TDK Electronics | B59601 | 470 Ohms | ±50% | -40°C ~ 125°C | 0603 (1608 Metric) | Tape & Reel (TR) | Industrial | 4996 |
| B59601A0085A062 | EPCOS - TDK Electronics | B59601 | 470 Ohms | ±50% | -40°C ~ 125°C | 0603 (1608 Metric) | Tape & Reel (TR) | Industrial | 16138 |
| B59601A0095A062 | EPCOS - TDK Electronics | B59601 | 470 Ohms | ±50% | -40°C ~ 125°C | 0603 (1608 Metric) | Tape & Reel (TR) | Industrial | 21140 |
| B59601A0105A062 | EPCOS - TDK Electronics | B59601 | 470 Ohms | ±50% | -40°C ~ 125°C | 0603 (1608 Metric) | Cut Tape (CT) & Digi-Reel® | Industrial | 6913 |
| B59601A0115A062 | EPCOS - TDK Electronics | B59601 | 470 Ohms | ±50% | -40°C ~ 125°C | 0603 (1608 Metric) | Tape & Reel (TR) | Industrial | 9652 |
| B59601A0125A062 | EPCOS - TDK Electronics | B59601 | 470 Ohms | ±50% | -40°C ~ 125°C | 0603 (1608 Metric) | Tape & Reel (TR) | Industrial | 3907 |
| B59601A0135A062 | EPCOS - TDK Electronics | B59601 | 470 Ohms | ±50% | -40°C ~ 125°C | 0603 (1608 Metric) | Tape & Reel (TR) | Industrial | 738 |
| B59641A0075A062 | EPCOS - TDK Electronics | B59641 | 470 Ohms | ±50% | -40°C ~ 125°C | 0603 (1608 Metric) | Tape & Reel (TR) | Automotive | 104350 |
| B59641A0085A062 | EPCOS - TDK Electronics | B59641 | 470 Ohms | ±50% | -40°C ~ 125°C | 0603 (1608 Metric) | Tape & Reel (TR) | Automotive | 4648 |
| B59641A0095A062 | EPCOS - TDK Electronics | B59641 | 470 Ohms | ±50% | -40°C ~ 125°C | 0603 (1608 Metric) | Tape & Reel (TR) | Automotive | 7094 |
Engineering Selection Recommendations
Industrial Applications: The EPCOS B59601 series provides direct functional equivalence to the Murata PRF18BE471RB5RB with extended operating temperature range (-40°C to 125°C versus -20°C to 110°C). All B59601 variants maintain ROHS3 compliance and MSL 1 rating. Selection among B59601A0075A062, B59601A0085A062, B59601A0095A062, B59601A0105A062, B59601A0115A062, B59601A0125A062, and B59601A0135A062 is determined by packaging format requirements and inventory availability.
Automotive Applications: The EPCOS B59641 series offers automotive-grade PTC thermistors with AEC-Q200 qualification, operating across -40°C to 125°C. These parts are suitable for applications requiring automotive-level reliability and traceability. B59641A0075A062, B59641A0085A062, and B59641A0095A062 are available with high inventory levels, particularly B59641A0075A062 with 104,350 units in stock.
Packaging Considerations: B59601A0105A062 is the only substitute available in Cut Tape (CT) & Digi-Reel® format; all other substitutes use standard Tape & Reel packaging matching the original part specification.
Frequently Asked Questions (FAQ)
Q: Can B59601 series parts directly replace the PRF18BE471RB5RB?
A: Yes. The B59601 series maintains identical electrical specifications (470 Ohms, ±50% tolerance) and mechanical compatibility (0603 surface mount package). The extended operating temperature range (-40°C to 125°C) provides broader thermal coverage than the original part (-20°C to 110°C). Both maintain ROHS3 compliance and MSL 1 rating.
Q: What is the difference between B59601 and B59641 series?
A: Both series share identical electrical and mechanical specifications. The B59641 series is automotive-grade with AEC-Q200 qualification, suitable for automotive and high-reliability applications. The B59601 series is industrial-grade. Selection depends on application requirements and qualification standards.
Q: Are there packaging format differences among substitutes?
A: Most substitutes use Tape & Reel (TR) packaging. B59601A0105A062 is available in Cut Tape (CT) & Digi-Reel® format. Packaging selection should align with assembly line requirements and procurement workflows.
Q: Does the extended temperature range of B59601 affect circuit performance?
A: The B59601 series operates -40°C to 125°C compared to the original -20°C to 110°C. This extended range does not degrade performance within the original operating window; it provides additional thermal margin for applications requiring broader environmental coverage.
Q: Are all substitutes ROHS3 compliant?
A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, matching the environmental specifications of the original PRF18BE471RB5RB.
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