RNF14FTC294R Equivalent & Substitute Parts

Part Overview

The RNF14FTC294R is a 294 Ohms ±1% 0.25W (1/4W) through-hole axial resistor manufactured by Stackpole Electronics Inc. This metal film resistor features flame retardant coating and safety construction, designed for general-purpose electronic applications requiring precision resistance values. The part is currently active in production with 967 pieces in stock. Substitute parts may be required due to inventory availability, packaging format preferences, or application-specific performance requirements such as higher power ratings or enhanced environmental specifications.

Substiute Parts

RNF14FTC294R

Stackpole Electronics IncIn Stock: 1020RNF14FTC294R Datasheet

Current PartRFQ

CMF55294R00FHEB

Vishay DaleIn Stock: 1966CMF55294R00FHEB Datasheet

UpgradeRFQ

CMF50294R00FHEB

Vishay DaleIn Stock: 2485CMF50294R00FHEB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RNF14FTC294R is determined by the following critical parameters: resistance value (294 Ohms), tolerance (±1%), composition (metal film), and package type (axial). All substitute parts must maintain these core electrical specifications to ensure functional compatibility.

The identified substitute parts are grouped as follows:

Upgrade Substitute (CMF55294R00FHEB): Maintains all core electrical parameters while providing enhanced power rating (0.5W vs. 0.25W) and extended operating temperature range (-55°C ~ 175°C vs. -55°C ~ 155°C). Packaging format differs (Cut Tape vs. Tape & Reel).

Direct Equivalent (CMF50294R00FHEB): Matches the original part's power rating (0.25W) and resistance specifications while offering identical tolerance and temperature coefficient. Extended operating temperature range (-55°C ~ 175°C) and alternative packaging (Cut Tape) are provided. Physical dimensions are reduced compared to the original part.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts maintain full compliance with ROHS3 and REACH requirements, matching the regulatory status of the original RNF14FTC294R. All three parts are active products from established manufacturers.

CMF50294R00FHEB is the direct functional equivalent, providing identical power rating and resistance specifications with extended operating temperature capability. This part is recommended for direct replacement in applications where the original Stackpole part is unavailable.

CMF55294R00FHEB is suitable for applications requiring higher power dissipation capability (0.5W vs. 0.25W) or operation at elevated temperatures up to 175°C. This upgrade substitute provides design margin for thermally demanding environments while maintaining all core electrical parameters.

Selection between substitute parts should be based on application power requirements and thermal operating conditions. Both Vishay Dale alternatives offer higher inventory availability than the original part.

Frequently Asked Questions (FAQ)

Q: Can CMF50294R00FHEB be used as a direct replacement for RNF14FTC294R?

A: Yes. Both parts share identical resistance (294 Ohms), tolerance (±1%), power rating (0.25W), composition (metal film), and temperature coefficient (±50ppm/°C). The primary difference is the extended operating temperature range (-55°C ~ 175°C vs. -55°C ~ 155°C) and packaging format (Cut Tape vs. Tape & Reel). Functional compatibility is confirmed.

Q: What is the advantage of CMF55294R00FHEB over the original part?

A: CMF55294R00FHEB provides doubled power rating (0.5W vs. 0.25W) and extended maximum operating temperature (175°C vs. 155°C). These enhancements allow operation in higher thermal stress environments while maintaining all core electrical specifications. Use this part when application power dissipation or temperature requirements exceed the original part's ratings.

Q: Are there physical size differences between these parts?

A: Yes. CMF50294R00FHEB has reduced dimensions (0.065" Dia x 0.150" L) compared to RNF14FTC294R (0.093" Dia x 0.250" L). CMF55294R00FHEB dimensions are 0.090" Dia x 0.240" L. Physical size differences may affect PCB layout and mechanical fit. Verify board space availability before substitution.

Q: Do packaging format differences affect electrical performance?

A: No. Packaging format (Tape & Reel vs. Cut Tape) affects only handling, storage, and assembly processes. Electrical performance and specifications remain identical regardless of packaging format.

Q: Are all substitute parts RoHS and REACH compliant?

A: Yes. All three parts (RNF14FTC294R, CMF55294R00FHEB, and CMF50294R00FHEB) are ROHS3 Compliant and REACH Unaffected, meeting current regulatory requirements.