RNF14FAD124K Equivalent & Substitute Parts

Part Overview

The RNF14FAD124K is a 124 kOhms ±1% 0.25W (1/4W) through-hole resistor manufactured by Stackpole Electronics Inc. This axial metal film resistor features flame retardant coating and safety characteristics, designed for general-purpose electronic applications requiring precision resistance values. The part is currently active in production with ROHS3 compliance and REACH unaffected status. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility allow direct replacement in circuit designs.

Substiute Parts

RNF14FAD124K

Stackpole Electronics IncIn Stock: 968RNF14FAD124K Datasheet

Current PartRFQ

RNF14FTD124K

Stackpole Electronics IncIn Stock: 831RNF14FTD124K Datasheet

DirectRFQ

CMF55124K00FHEB

Vishay DaleIn Stock: 1639CMF55124K00FHEB Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RNF14FAD124K are identified based on the following critical parameters that determine functional equivalence:

Primary Equivalence Criteria:

• Resistance value: 124 kOhms
• Tolerance: ±1%
• Composition: Metal Film
• Package: Axial through-hole configuration
• Compliance: ROHS3 Compliant, REACH Unaffected

Direct Substitute (RNF14FTD124K): Identical electrical specifications and mechanical dimensions. Differs only in packaging format (Tape & Reel vs. Tape & Box), which does not affect functional performance in circuit applications.

Upgrade Substitute (CMF55124K00FHEB): Meets all primary equivalence criteria with enhanced specifications. Power rating increased to 0.5W (1/2W), temperature coefficient improved to ±50ppm/°C, and maximum operating temperature extended to 175°C. Physical dimensions remain compatible with axial through-hole mounting.

Parameter Comparison

Engineering Selection Recommendations

RNF14FTD124K is a direct functional equivalent suitable for applications where the RNF14FAD124K is specified. Both parts maintain identical electrical performance and mechanical compatibility. Selection between these two Stackpole parts depends on procurement and assembly requirements related to packaging format.

CMF55124K00FHEB is an upgrade substitute providing enhanced thermal stability and extended operating temperature range. This part is appropriate for applications requiring improved temperature coefficient performance (±50ppm/°C vs. ±100ppm/°C) or operation at temperatures exceeding 155°C. The increased power rating (0.5W vs. 0.25W) provides additional thermal margin in power dissipation scenarios. All three parts maintain ROHS3 compliance and REACH unaffected status.

Frequently Asked Questions (FAQ)

Q: Can RNF14FTD124K replace RNF14FAD124K in existing designs? A: Yes. Both parts are electrically and mechanically identical. The difference is packaging format (Tape & Reel vs. Tape & Box), which does not affect circuit performance.

Q: What are the advantages of using CMF55124K00FHEB as a substitute? A: CMF55124K00FHEB offers improved temperature coefficient (±50ppm/°C vs. ±100ppm/°C), extended maximum operating temperature (175°C vs. 155°C), and higher power rating (0.5W vs. 0.25W). These enhancements provide better performance stability in temperature-sensitive applications.

Q: Are all three parts physically compatible with the same PCB footprint? A: Yes. All three parts use axial through-hole packaging with compatible lead spacing and diameter specifications suitable for standard 0.093" diameter holes.

Q: Do all substitute parts meet the same compliance requirements? A: Yes. RNF14FTD124K and CMF55124K00FHEB are both ROHS3 compliant and REACH unaffected, matching the compliance profile of the RNF14FAD124K.

Q: Which substitute should be selected for high-temperature applications? A: CMF55124K00FHEB is the appropriate choice for applications requiring operation above 155°C, as it supports temperatures up to 175°C.