RNF14FAD35K7 Equivalent & Substitute Parts

Part Overview

The RNF14FAD35K7 is a 35.7 kOhms ±1% metal film axial through-hole resistor rated at 0.25W (1/4W) 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 is currently in active production status with 1146 units available in inventory. Substitute parts are identified to provide alternative sourcing options while maintaining electrical and mechanical compatibility within specified tolerance parameters.

Substiute Parts

RNF14FAD35K7

Stackpole Electronics IncIn Stock: 1208RNF14FAD35K7 Datasheet

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CMF5535K700FHEB

Vishay DaleIn Stock: 4746CMF5535K700FHEB Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RNF14FAD35K7 are qualified based on the following electrical and mechanical parameters:

Critical Matching Parameters:

• Resistance value: 35.7 kOhms (exact match required)
• Tolerance: ±1% (equivalent or tighter tolerance acceptable)
• Composition: Metal Film (maintains electrical characteristics)
• Package: Axial (mechanical compatibility with PCB layout)
• Termination count: 2 (standard axial configuration)

Allowable Variation Parameters:

• Power rating: Equal or higher rating acceptable (0.25W minimum)
• Temperature coefficient: Lower values acceptable (improved stability)
• Operating temperature range: Equal or extended range acceptable
• Physical dimensions: Minor variations acceptable within axial package standard

The CMF5535K700FHEB qualifies as a substitute due to matching resistance, tolerance, composition, and package type, with upgraded power rating and improved temperature characteristics.

Parameter Comparison

Engineering Selection Recommendations

The CMF5535K700FHEB qualifies as a direct substitute for the RNF14FAD35K7 based on matching electrical specifications and axial package compatibility. Both parts maintain ROHS3 compliance and are manufactured to ±1% tolerance with metal film construction.

The substitute part offers engineering advantages including higher power dissipation capability (0.5W vs 0.25W), improved temperature coefficient stability (±50ppm/°C vs ±100ppm/°C), and extended operating temperature range (-55°C to 175°C vs -55°C to 155°C). The addition of moisture-resistant properties in the substitute provides enhanced environmental protection.

Physical dimensions are compatible within standard axial package tolerances. Both parts feature flame retardant coating and safety-grade construction suitable for industrial applications. Selection between these parts depends on application power dissipation requirements and environmental exposure conditions.

Frequently Asked Questions (FAQ)

Q: Can the CMF5535K700FHEB replace the RNF14FAD35K7 in existing designs?

A: Yes. Both parts share identical resistance value (35.7 kOhms), tolerance (±1%), composition (metal film), and axial package configuration. The substitute is physically and electrically compatible for direct PCB substitution.

Q: What is the significance of the higher power rating on the substitute part?

A: The CMF5535K700FHEB is rated at 0.5W compared to the RNF14FAD35K7 at 0.25W. This higher rating provides greater thermal margin in applications with elevated current flow or ambient temperatures, reducing component stress and extending service life.

Q: How do the temperature coefficients differ between these parts?

A: The RNF14FAD35K7 has a temperature coefficient of ±100ppm/°C, while the CMF5535K700FHEB is rated at ±50ppm/°C. The lower coefficient on the substitute indicates superior resistance stability across temperature variations, beneficial for precision circuit applications.

Q: Are there packaging differences between these parts?

A: Both parts use axial through-hole packaging. Physical dimensions show minor variations (RNF14FAD35K7: 0.093" Dia x 0.250" L; CMF5535K700FHEB: 0.090" Dia x 0.240" L), which remain compatible within standard axial package tolerances and PCB hole specifications.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the RNF14FAD35K7 and CMF5535K700FHEB are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with identical HTSUS coding (8533.21.0090).

Q: What additional features does the substitute part provide?

A: The CMF5535K700FHEB includes moisture-resistant properties in addition to the flame retardant coating and safety features present on the main part. This provides enhanced protection in humid or corrosive environments.