RNF14FAD464K Equivalent & Substitute Parts

Part Overview

The RNF14FAD464K is a 464 kOhms ±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 values in compact form factors. The part is currently active in production with ROHS3 compliance and is suitable for general-purpose electronic circuit applications. Substitute parts may be required due to inventory constraints, design upgrades for enhanced performance specifications, or application-specific environmental requirements.

Substiute Parts

RNF14FAD464K

Stackpole Electronics IncIn Stock: 1012RNF14FAD464K Datasheet

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CMF55464K00FHEB

Vishay DaleIn Stock: 2056CMF55464K00FHEB Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the RNF14FAD464K is permissible with the CMF55464K00FHEB based on the following criteria:

Matching Parameters (Required for Substitution):

• Resistance value: 464 kOhms (identical)
• Tolerance: ±1% (identical)
• Composition: Metal Film (identical)
• Package type: Axial (identical)
• Termination count: 2 (identical)
• RoHS compliance: ROHS3 Compliant (identical)

Allowable Differences:

• Power rating: CMF55464K00FHEB is rated at 0.5W (1/2W), exceeding the 0.25W requirement of RNF14FAD464K. Higher power ratings are acceptable in applications where the original 0.25W specification is not a constraint.
• Temperature coefficient: CMF55464K00FHEB features ±50ppm/°C versus ±100ppm/°C, representing improved stability.
• Operating temperature range: CMF55464K00FHEB extends to 175°C versus 155°C, providing broader thermal operation.
• Physical dimensions: Minor variations in diameter and length are acceptable within axial package standards.
• Packaging format: CMF55464K00FHEB is supplied in Tape & Reel (TR) versus Tape & Box (TB) for RNF14FAD464K.

Parameter Comparison

Engineering Selection Recommendations

The CMF55464K00FHEB serves as a direct functional equivalent to the RNF14FAD464K for applications where the specified 0.25W power rating is not a limiting constraint. Both components maintain ROHS3 compliance and identical electrical specifications for resistance value and tolerance. The CMF55464K00FHEB offers enhanced performance characteristics including improved temperature coefficient stability (±50ppm/°C versus ±100ppm/°C) and extended operating temperature range (-55°C to 175°C versus -55°C to 155°C). The addition of moisture-resistant properties in the CMF55464K00FHEB provides supplementary environmental protection. Selection between these parts should be based on circuit power dissipation requirements, thermal environment specifications, and packaging format availability for production processes.

Frequently Asked Questions (FAQ)

Q: Can CMF55464K00FHEB replace RNF14FAD464K in all applications?

A: The CMF55464K00FHEB is electrically and mechanically compatible with RNF14FAD464K for applications where circuit power dissipation does not exceed 0.25W. The higher 0.5W power rating of the substitute part does not create incompatibility in lower-power applications. Physical dimensions are similar within axial package tolerances.

Q: What are the key differences between these two resistors?

A: The primary differences are power rating (0.5W versus 0.25W), temperature coefficient (±50ppm/°C versus ±100ppm/°C), maximum operating temperature (175°C versus 155°C), and packaging format (Tape & Reel versus Tape & Box). Resistance value, tolerance, composition, and RoHS compliance are identical.

Q: Are there any circuit design considerations when substituting?

A: The CMF55464K00FHEB's improved temperature coefficient provides better stability across temperature variations. The extended operating temperature range permits use in higher-temperature environments. The moisture-resistant feature offers additional protection in humid conditions. No circuit redesign is required for standard applications.

Q: Does packaging format affect component performance?

A: Packaging format (Tape & Reel versus Tape & Box) affects handling, storage, and automated assembly processes but does not impact electrical or mechanical performance of the component itself.

Q: Are both parts RoHS compliant?

A: Yes, both RNF14FAD464K and CMF55464K00FHEB are ROHS3 compliant, meeting regulatory requirements for hazardous substance restrictions.