PRNF14FTD475R Equivalent & Substitute Parts

Part Overview

The PRNF14FTD475R is a 475 Ohm ±1% metal film through-hole resistor rated at 0.25W (1/4W) in axial configuration, manufactured by Stackpole Electronics Inc. This component is actively produced and widely used in general-purpose electronic applications requiring precision resistive elements with flame retardant coating and safety features. Substitute parts may be required due to inventory availability, packaging format preferences, or application-specific performance requirements such as higher power ratings or improved temperature stability.

Substiute Parts

PRNF14FTD475R

Stackpole Electronics IncIn Stock: 861PRNF14FTD475R Datasheet

Current PartRFQ

RNF14FTD475R

Stackpole Electronics IncIn Stock: 33622RNF14FTD475R Datasheet

DirectRFQ

CMF55475R00FHEB

Vishay DaleIn Stock: 1966CMF55475R00FHEB Datasheet

UpgradeRFQ

CMF55475R00FKEB

Vishay DaleIn Stock: 1737CMF55475R00FKEB Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PRNF14FTD475R is determined by the following criteria:

Direct Equivalent (Same Specifications): RNF14FTD475R maintains identical electrical and mechanical specifications to the main part, differing only in packaging format (Cut Tape vs. Tape & Reel). This part is a direct functional substitute with no performance trade-offs.

Upgrade Substitutes (Enhanced Performance): CMF55475R00FHEB and CMF55475R00FKEB are manufactured by Vishay Dale and provide upgraded specifications within the same axial package format. These parts maintain the 475 Ohm resistance and ±1% tolerance but offer increased power rating (0.5W vs. 0.25W), extended operating temperature range (-55°C ~ 175°C vs. -55°C ~ 155°C), and moisture-resistant features. Temperature coefficient varies between these two models (±50ppm/°C for CMF55475R00FHEB and ±100ppm/°C for CMF55475R00FKEB).

All substitute parts are ROHS3 compliant, REACH unaffected, and maintain the same axial through-hole configuration suitable for printed circuit board assembly.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement: RNF14FTD475R is suitable when packaging format conversion from Tape & Reel to Cut Tape is acceptable. Electrical and thermal performance remain identical to the main part.

For Enhanced Thermal Performance: CMF55475R00FHEB is selected when applications require extended operating temperature range (up to 175°C) and improved temperature stability (±50ppm/°C). The doubled power rating (0.5W) provides additional thermal margin in power-dissipation-sensitive circuits.

For Moisture-Resistant Applications: Both CMF55475R00FHEB and CMF55475R00FKEB incorporate moisture-resistant features suitable for humid or corrosive environments. CMF55475R00FKEB maintains the ±100ppm/°C temperature coefficient matching the original specification, while CMF55475R00FHEB offers superior temperature stability at ±50ppm/°C.

All substitute parts maintain ROHS3 compliance and are suitable for direct board-level substitution in axial through-hole mounting applications.

Frequently Asked Questions (FAQ)

Q: Can RNF14FTD475R replace PRNF14FTD475R in production? A: Yes. RNF14FTD475R is electrically and mechanically identical to PRNF14FTD475R. The only difference is packaging format (Cut Tape vs. Tape & Reel). Verify that your assembly process accommodates the packaging change.

Q: What are the advantages of using CMF55475R00FHEB or CMF55475R00FKEB? A: Both parts offer doubled power rating (0.5W vs. 0.25W), extended operating temperature range (-55°C to 175°C vs. -55°C to 155°C), and moisture-resistant coating. CMF55475R00FHEB additionally provides improved temperature coefficient (±50ppm/°C vs. ±100ppm/°C).

Q: Are the Vishay Dale CMF55 series parts pin-compatible with the Stackpole RNF series? A: Yes. Both series use identical axial through-hole configuration with two terminations. Physical dimensions are comparable (CMF55: 0.090" Dia x 0.240" L vs. RNF: 0.093" Dia x 0.250" L), allowing direct board-level substitution.

Q: Do all substitute parts meet the same compliance standards? A: Yes. All listed parts are ROHS3 compliant, REACH unaffected, and carry the same ECCN (EAR99) and HTSUS (8533.21.0090) classifications.

Q: Which substitute should I select for high-temperature applications? A: CMF55475R00FHEB or CMF55475R00FKEB are required for applications exceeding 155°C, as both support operation up to 175°C. CMF55475R00FHEB is preferred if temperature coefficient stability is critical.