RNF12FTC475K Equivalent & Substitute Parts

Part Overview

The RNF12FTC475K is a 475 kOhms ±1% metal film axial through-hole resistor rated at 0.5W (1/2W) manufactured by Stackpole Electronics Inc. This component features flame retardant coating and safety-grade construction, designed for applications requiring precision resistance values with reliable performance across industrial temperature ranges. The part maintains Active product status with 797 units in current inventory. Substitute parts are identified when equivalent electrical specifications, mechanical compatibility, and regulatory compliance can be maintained while potentially offering improved availability or alternative packaging options.

Substiute Parts

RNF12FTC475K

Stackpole Electronics IncIn Stock: 817RNF12FTC475K Datasheet

Current PartRFQ

CMF55475K00FHEB

Vishay DaleIn Stock: 6063CMF55475K00FHEB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RNF12FTC475K is determined by strict equivalence across the following critical parameters:

• Electrical Specifications: Resistance value (475 kOhms), tolerance (±1%), and power rating (0.5W) must be identical
• Composition & Construction: Metal film composition with flame retardant coating required
• Package Configuration: Axial through-hole package with 2 terminations
• Temperature Performance: Temperature coefficient (±50ppm/°C) and minimum operating range compatibility
• Regulatory Compliance: ROHS3 compliance and REACH unaffected status maintained

The CMF55475K00FHEB from Vishay Dale meets all substitution criteria while maintaining full electrical and mechanical compatibility with the RNF12FTC475K.

Parameter Comparison

Engineering Selection Recommendations

Both the RNF12FTC475K and CMF55475K00FHEB maintain Active product status and full ROHS3 compliance with REACH unaffected designation. The CMF55475K00FHEB provides an extended operating temperature range to 175°C (versus 155°C for the RNF12FTC475K) and includes moisture-resistant construction. Selection between these parts should be based on packaging requirements (Tape & Reel versus Cut Tape), inventory availability, and thermal operating envelope specifications for the target application. Both components satisfy identical electrical and mechanical substitution criteria.

Frequently Asked Questions (FAQ)

Q: Can the CMF55475K00FHEB directly replace the RNF12FTC475K in existing designs?

A: Yes. Both components share identical resistance (475 kOhms), tolerance (±1%), power rating (0.5W), composition (metal film), temperature coefficient (±50ppm/°C), and axial package configuration. Electrical and mechanical compatibility is maintained.

Q: What is the difference in physical dimensions between these parts?

A: The RNF12FTC475K measures 0.108" diameter × 0.344" length (2.75mm × 8.75mm). The CMF55475K00FHEB measures 0.090" diameter × 0.240" length (2.29mm × 6.10mm). The substitute part is physically smaller while maintaining identical electrical performance.

Q: Does the extended temperature range of the CMF55475K00FHEB affect substitution suitability?

A: No. The CMF55475K00FHEB operating range (-55°C ~ 175°C) encompasses the RNF12FTC475K range (-55°C ~ 155°C). Extended temperature capability does not compromise compatibility for applications within the original part's thermal specifications.

Q: What packaging format differences exist between these parts?

A: The RNF12FTC475K is supplied in Tape & Reel (TR) format. The CMF55475K00FHEB is supplied in Cut Tape (CT) format. Packaging selection depends on assembly process requirements and volume considerations.

Q: Are both parts compliant with current regulatory standards?

A: Yes. Both the RNF12FTC475K and CMF55475K00FHEB are ROHS3 compliant and REACH unaffected, meeting current electronic component regulatory requirements.