RNF14FTC475K Equivalent & Substitute Parts

Part Overview

The RNF14FTC475K is a 475 kOhm ±1% metal film axial resistor rated at 0.25W (1/4W) manufactured by Stackpole Electronics Inc. This through-hole component features flame retardant coating and safety construction, designed for applications requiring precision resistance in compact form factors. The part is currently active in production with ROHS3 compliance and is suitable for general-purpose electronic circuit applications where stable resistance values and low temperature coefficients are required.

Substitute parts are identified when equivalent resistance values, tolerance specifications, and mechanical compatibility can be maintained while potentially offering enhanced performance characteristics such as higher power ratings, improved tolerance, or extended operating temperature ranges.

Substiute Parts

RNF14FTC475K

Stackpole Electronics IncIn Stock: 941RNF14FTC475K Datasheet

Current PartRFQ

CMF55475K00BEEB

Vishay DaleIn Stock: 1161CMF55475K00BEEB Datasheet

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CMF55475K00FHEB

Vishay DaleIn Stock: 6063CMF55475K00FHEB Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RNF14FTC475K are qualified based on the following criteria:

Core Electrical Parameters (Must Match):

• Resistance value: 475 kOhms
• Composition: Metal Film
• Package type: Axial through-hole configuration

Allowable Variations (Enhancement Parameters):

• Tolerance: Equal or tighter than ±1%
• Power rating: Equal to or greater than 0.25W
• Temperature coefficient: Equal to or lower absolute value
• Operating temperature range: Equal to or extended upper limit
• Compliance certifications: ROHS3 or equivalent

The identified substitute parts CMF55475K00FHEB and CMF55475K00BEEB from Vishay Dale maintain the core electrical specifications while offering enhanced power ratings (0.5W) and extended operating temperature ranges (-55°C ~ 175°C), making them direct functional equivalents with performance improvements.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts maintain full electrical and mechanical compatibility with the RNF14FTC475K while providing enhanced specifications. Selection between alternatives depends on application requirements:

CMF55475K00FHEB maintains the ±1% tolerance specification of the original part while doubling the power rating to 0.5W and extending the operating temperature range to 175°C. This option is suitable for applications requiring direct specification alignment with improved thermal headroom.

CMF55475K00BEEB offers the tightest tolerance specification at ±0.1% with equivalent power rating and temperature range enhancements. This option is appropriate for precision circuit applications where tighter resistance tolerance provides performance benefits.

All substitute parts carry ROHS3 compliance certification and are manufactured by Vishay Dale, an established supplier with active product status. The axial package configuration remains unchanged, ensuring mechanical fit in existing PCB layouts.

Frequently Asked Questions (FAQ)

Q: Can CMF55475K00FHEB or CMF55475K00BEEB be used as direct replacements for RNF14FTC475K?

A: Yes. Both substitute parts maintain the 475 kOhm resistance value, metal film composition, and axial package configuration. The enhanced power ratings (0.5W vs 0.25W) and extended operating temperature ranges provide functional equivalence with performance improvements. Mechanical dimensions are comparable, supporting direct PCB substitution.

Q: What is the difference between the two substitute parts?

A: CMF55475K00FHEB maintains ±1% tolerance matching the original specification. CMF55475K00BEEB offers tighter ±0.1% tolerance and lower temperature coefficient (±25ppm/°C vs ±50ppm/°C). Both share identical power ratings and operating temperature ranges.

Q: Are there packaging differences between the main part and substitutes?

A: The main part is supplied in Tape & Reel (TR) packaging, while substitute parts are supplied in Cut Tape (CT) packaging. Both are axial through-hole components with comparable physical dimensions (approximately 0.090" to 0.093" diameter, 0.240" to 0.250" length), suitable for identical PCB mounting.

Q: Do the substitute parts meet the same compliance requirements?

A: Yes. All parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99. Compliance certifications are equivalent across all three parts.

Q: Which substitute should be selected for high-temperature applications?

A: Both substitutes extend the operating temperature range to 175°C compared to the original 155°C maximum. Selection between CMF55475K00FHEB and CMF55475K00BEEB depends on tolerance requirements rather than temperature capability.