RNF14FAC2K05 Equivalent & Substitute Parts

Part Overview

The RNF14FAC2K05 is a 2.05 kOhms ±1% 0.25W (1/4W) through-hole axial resistor manufactured by Stackpole Electronics Inc. This metal film resistor features flame retardant coating and safety design, with an operating temperature range of -55°C to 155°C. The part is Active status and RoHS3 compliant. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained within the allowed parameter tolerances for axial resistor applications.

Substiute Parts

RNF14FAC2K05

Stackpole Electronics IncIn Stock: 899RNF14FAC2K05 Datasheet

Current PartRFQ

CMF552K0500FHEB

Vishay DaleIn Stock: 2657CMF552K0500FHEB Datasheet

UpgradeRFQ

CMF502K0500FHEB

Vishay DaleIn Stock: 2291CMF502K0500FHEB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RNF14FAC2K05 are qualified based on the following criteria:

Electrical Parameters (Must Match):

• Resistance value: 2.05 kOhms
• Tolerance: ±1%
• Composition: Metal Film
• Temperature Coefficient: ±50ppm/°C

Mechanical Parameters (Must Match):

• Package type: Axial
• Number of terminations: 2

Allowed Variations:

• Power rating: Equal or greater than 0.25W
• Operating temperature range: Equal or greater than -55°C ~ 155°C
• Features: Equal or enhanced (flame retardant coating and safety features maintained or improved)
• Packaging format: Tape & Box or Cut Tape acceptable
• Compliance: RoHS3 compliant required

The CMF502K0500FHEB and CMF552K0500FHEB from Vishay Dale meet all substitution criteria with identical electrical specifications and enhanced operating temperature ranges.

Parameter Comparison

Engineering Selection Recommendations

CMF502K0500FHEB (MFR Recommended Substitute): This part provides direct electrical and mechanical equivalence to the RNF14FAC2K05 with identical power rating (0.25W) and resistance specifications. The CMF502K0500FHEB offers an extended operating temperature range (-55°C ~ 175°C) and enhanced moisture resistance. Both parts are Active status and RoHS3 compliant. This substitute is suitable for direct replacement in applications where the original specification is maintained.

CMF552K0500FHEB (Upgrade Substitute): This part maintains all electrical specifications while providing a higher power rating (0.5W vs 0.25W) and extended operating temperature range (-55°C ~ 175°C). The CMF552K0500FHEB is appropriate for applications requiring thermal margin or higher power dissipation capability. Both parts are Active status and RoHS3 compliant.

Frequently Asked Questions (FAQ)

Q: Can CMF502K0500FHEB be used as a direct replacement for RNF14FAC2K05? A: Yes. The CMF502K0500FHEB maintains identical resistance (2.05 kOhms), tolerance (±1%), power rating (0.25W), and axial package configuration. Both are metal film composition with ±50ppm/°C temperature coefficient and RoHS3 compliance.

Q: What is the difference between CMF502K0500FHEB and CMF552K0500FHEB? A: The primary difference is power rating: CMF502K0500FHEB is rated 0.25W (1/4W), while CMF552K0500FHEB is rated 0.5W (1/2W). All other electrical parameters are identical. The CMF552K0500FHEB provides additional thermal headroom for applications with higher power dissipation requirements.

Q: Are the physical dimensions compatible? A: All three parts use axial package configuration with 2 terminations. Specific dimensional variations exist: RNF14FAC2K05 is 0.093" Dia x 0.250" L, CMF502K0500FHEB is 0.065" Dia x 0.150" L, and CMF552K0500FHEB is 0.090" Dia x 0.240" L. Verify PCB layout compatibility before substitution.

Q: Do the substitute parts meet the same compliance requirements? A: Yes. Both CMF502K0500FHEB and CMF552K0500FHEB are RoHS3 compliant, REACH unaffected, and classified as EAR99 with HTSUS code 8533.21.0090, matching the original part specifications.

Q: What is the operating temperature difference? A: The RNF14FAC2K05 operates from -55°C to 155°C. Both substitute parts extend this range to -55°C to 175°C, providing 20°C additional high-temperature capability.