RNF14FTC232K Equivalent & Substitute Parts

Part Overview

The RNF14FTC232K is a 232 kOhms ±1% 0.25W axial through-hole resistor manufactured by Stackpole Electronics Inc. This metal film resistor features flame retardant coating and safety construction, designed for applications requiring precision resistance values in compact form factors. The part is Active status and widely used in industrial and commercial electronic assemblies. Substitute parts are identified when inventory constraints, lead time requirements, or design flexibility necessitate alternative component sources while maintaining electrical and mechanical compatibility.

Substiute Parts

RNF14FTC232K

Stackpole Electronics IncIn Stock: 1114RNF14FTC232K Datasheet

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CMF55232K00FHEB

Vishay DaleIn Stock: 2143CMF55232K00FHEB Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RNF14FTC232K are qualified based on the following criteria:

Electrical Compatibility:

• Identical resistance value: 232 kOhms
• Matching tolerance: ±1%
• Temperature coefficient: ±50ppm/°C
• Metal film composition for stability and precision

Mechanical Compatibility:

• Axial package configuration for through-hole mounting
• Physical dimensions compatible with standard PCB layouts
• Two terminations for direct pin-to-pin replacement

Regulatory & Environmental:

• ROHS3 compliance maintained
• Operating temperature range sufficient for application requirements
• Flame retardant coating and safety features preserved

The CMF55232K00FHEB qualifies as a substitute based on matching all electrical parameters and maintaining axial package compatibility, with the distinction of higher power rating (0.5W vs 0.25W) and extended operating temperature range (-55°C ~ 175°C).

Parameter Comparison

Engineering Selection Recommendations

Both the RNF14FTC232K and CMF55232K00FHEB maintain ROHS3 compliance and REACH unaffected status, qualifying them for equivalent use in regulated applications. The CMF55232K00FHEB provides additional design margin through higher power dissipation capability (0.5W vs 0.25W) and extended maximum operating temperature (175°C vs 155°C), making it suitable for applications with elevated thermal environments or higher current stress conditions. The substitute part's moisture-resistant feature provides enhanced environmental protection in humid or corrosive atmospheres. Both parts share identical electrical characteristics (resistance, tolerance, temperature coefficient) and axial package configuration, ensuring direct functional equivalence in circuit applications.

Frequently Asked Questions (FAQ)

Q: Can CMF55232K00FHEB replace RNF14FTC232K in all applications?

A: Yes, from an electrical standpoint. The substitute part matches all critical electrical parameters: 232 kOhms resistance, ±1% tolerance, and ±50ppm/°C temperature coefficient. The higher power rating (0.5W) and extended operating temperature range (-55°C ~ 175°C) provide additional design margin. Physical dimensions are comparable for standard PCB layouts, though specific board space constraints should be verified.

Q: What are the key differences between these parts?

A: The primary differences are power rating (0.25W vs 0.5W), maximum operating temperature (155°C vs 175°C), and moisture resistance features. The CMF55232K00FHEB offers enhanced environmental protection and thermal headroom. Packaging format differs (Tape & Reel vs Cut Tape), which may affect procurement and assembly processes.

Q: Are both parts suitable for high-temperature applications?

A: The RNF14FTC232K operates to 155°C maximum. The CMF55232K00FHEB extends to 175°C, making it the preferred choice for applications approaching or exceeding 155°C ambient or component temperature conditions.

Q: Do these parts require different PCB layout considerations?

A: Both parts use axial package configuration with comparable physical dimensions (RNF: 0.093" Dia x 0.250" L; CMF: 0.090" Dia x 0.240" L). Standard through-hole PCB layouts accommodate both without modification. Verify specific board hole spacing and component density requirements for your application.

Q: What compliance certifications apply to both parts?

A: Both parts are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for commercial and industrial electronics. ECCN classification is EAR99 for both parts.