RNF14FTC2K05 Equivalent & Substitute Parts

Part Overview

The RNF14FTC2K05 is a 2.05 kOhm ±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 1152 units available in stock. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility allow direct replacement while maintaining circuit performance and compliance requirements.

Substiute Parts

RNF14FTC2K05

Stackpole Electronics IncIn Stock: 1231RNF14FTC2K05 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 RNF14FTC2K05 are qualified based on the following criteria:

Electrical Equivalence: Resistance value (2.05 kOhms), tolerance (±1%), and temperature coefficient (±50ppm/°C) must match exactly to ensure circuit performance is maintained.

Mechanical Compatibility: Package type must be axial through-hole to ensure PCB footprint compatibility and assembly process alignment.

Power Rating Consideration: Substitute parts may have equal or higher power ratings. A higher power rating (0.5W vs. 0.25W) provides additional thermal margin and is electrically compatible, though physical dimensions will differ.

Compliance Requirements: All substitute parts must maintain ROHS3 compliance and active product status to ensure supply chain continuity and regulatory adherence.

Temperature Range: Operating temperature range of substitute parts must encompass or exceed the original specification (-55°C ~ 155°C).

Parameter Comparison

Engineering Selection Recommendations

CMF502K0500FHEB (MFR Recommended Substitute): This part provides direct electrical and mechanical equivalence to the RNF14FTC2K05 with identical power rating (0.25W) and resistance specifications. The Vishay Dale CMF50 series offers extended operating temperature range (-55°C ~ 175°C) and moisture-resistant construction, maintaining ROHS3 compliance and active product status. This substitute is suitable for applications requiring exact form-factor compatibility with enhanced environmental protection.

CMF552K0500FHEB (Upgrade Substitute): This part maintains all electrical specifications while providing increased power rating (0.5W vs. 0.25W), resulting in improved thermal performance and reliability margin. The CMF55 series offers the same extended temperature range and moisture-resistant features as the CMF50 series. Physical dimensions are slightly smaller (0.090" Dia x 0.240" L vs. 0.093" Dia x 0.250" L), which may require PCB layout verification for tight spacing applications. This substitute is appropriate for designs where thermal headroom is beneficial and space constraints are not limiting.

Both substitute parts maintain full ROHS3 compliance, active manufacturing status, and adequate inventory availability for production requirements.

Frequently Asked Questions (FAQ)

Q: Can CMF502K0500FHEB be used as a direct replacement for RNF14FTC2K05?

A: Yes. Both parts share identical electrical specifications (2.05 kOhms ±1%, 0.25W, ±50ppm/°C) and axial package type. The CMF502K0500FHEB provides extended operating temperature range and moisture-resistant construction while maintaining the same power rating and physical footprint compatibility.

Q: What is the difference between CMF502K0500FHEB and CMF552K0500FHEB?

A: The primary difference is power rating: CMF502K0500FHEB is rated at 0.25W (1/4W), while CMF552K0500FHEB is rated at 0.5W (1/2W). Both maintain identical resistance, tolerance, and temperature coefficient. The CMF55 series has slightly smaller physical dimensions. Both are electrically compatible with the original part.

Q: Are there any packaging differences between these substitutes?

A: The RNF14FTC2K05 is supplied in Tape & Reel (TR) packaging, while both Vishay Dale substitutes are supplied in Cut Tape (CT) packaging. Both packaging formats are standard for through-hole axial resistors and do not affect component functionality or PCB assembly compatibility.

Q: Do all substitute parts meet the same compliance requirements?

A: Yes. The RNF14FTC2K05 and both substitute parts (CMF502K0500FHEB and CMF552K0500FHEB) are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export purposes. All parts maintain active product status with manufacturers.

Q: Can CMF552K0500FHEB be used in applications designed for 0.25W resistors?

A: Yes. A higher power-rated component (0.5W) is electrically compatible with circuits designed for lower power ratings (0.25W). The higher rating provides additional thermal margin and reliability. Physical dimensions are slightly smaller, requiring verification that PCB layout accommodates the reduced size.