RNF14FTC82R5 Equivalent & Substitute Parts

Part Overview

The RNF14FTC82R5 is a 1/4W axial through-hole resistor manufactured by Stackpole Electronics Inc with a resistance value of 82.5 Ohms and ±1% tolerance. This metal film resistor features flame retardant coating and is designed for general-purpose electronic applications requiring precision resistive elements in compact axial packages. The part maintains Active product status with 1038 units in current inventory. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility allow direct replacement in circuit designs.

Substiute Parts

RNF14FTC82R5

Stackpole Electronics IncIn Stock: 1136RNF14FTC82R5 Datasheet

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CMF5582R500FHEB

Vishay DaleIn Stock: 847CMF5582R500FHEB Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RNF14FTC82R5 are qualified based on the following criteria:

Electrical Equivalence: Resistance value of 82.5 Ohms with ±1% tolerance and metal film composition ensure identical electrical performance in circuit applications.

Mechanical Compatibility: Axial package configuration allows physical interchangeability in through-hole PCB layouts designed for standard axial resistor footprints.

Environmental Specifications: Temperature coefficient of ±50ppm/°C and operating temperature range compatibility ensure stable performance across specified thermal conditions.

Regulatory Compliance: ROHS3 compliance and REACH Unaffected status maintain consistency with environmental and safety requirements.

Power Rating Consideration: Substitute parts with equal or higher power ratings (0.25W or greater) are acceptable for direct replacement without circuit redesign.

Parameter Comparison

Engineering Selection Recommendations

The CMF5582R500FHEB qualifies as a direct substitute for the RNF14FTC82R5 based on matched electrical specifications and axial package compatibility. Both parts maintain ROHS3 compliance and REACH Unaffected status, ensuring regulatory alignment.

The substitute part offers a higher power rating (0.5W versus 0.25W), which provides additional thermal margin in applications where the original 1/4W specification is met. The extended operating temperature range (-55°C to 175°C versus -55°C to 155°C) supports use in higher-temperature environments.

Packaging format differs between the main part (Tape & Reel) and substitute (Cut Tape), which affects procurement and assembly processes but does not impact electrical or mechanical performance.

Frequently Asked Questions (FAQ)

Q: Can the CMF5582R500FHEB replace the RNF14FTC82R5 in existing circuit designs?

A: Yes. Both parts share identical resistance values (82.5 Ohms), tolerance (±1%), composition (metal film), and axial package configuration. The substitute's higher power rating and extended temperature range do not create compatibility issues in circuits designed for the original part.

Q: What is the significance of the different power ratings?

A: The RNF14FTC82R5 is rated at 0.25W (1/4W), while the CMF5582R500FHEB is rated at 0.5W (1/2W). In applications where the circuit dissipates power within the 0.25W limit, both parts perform identically. The higher-rated substitute provides additional thermal headroom and may be preferred in designs with marginal power dissipation.

Q: Are there packaging considerations when switching between these parts?

A: The main part is supplied in Tape & Reel format, while the substitute is supplied in Cut Tape format. This affects procurement and assembly handling but does not impact the electrical or mechanical performance of the resistor itself.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the RNF14FTC82R5 and CMF5582R500FHEB are ROHS3 compliant and REACH Unaffected, maintaining consistency with environmental and regulatory requirements.

Q: What is the temperature coefficient significance?

A: Both parts share an identical temperature coefficient of ±50ppm/°C, ensuring equivalent resistance stability across temperature variations. This parameter is critical for precision applications requiring predictable performance over the operating temperature range.