RNF14FTC210R Equivalent & Substitute Parts

Part Overview

The RNF14FTC210R is a 210 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 applications requiring precision resistance values in compact form factors. The part is currently active in production with 688 units in stock. Substitute parts may be required due to supply constraints, packaging preferences, or application-specific performance requirements such as higher power ratings or enhanced environmental specifications.

Substiute Parts

RNF14FTC210R

Stackpole Electronics IncIn Stock: 771RNF14FTC210R Datasheet

Current PartRFQ

CMF55210R00FHEB

Vishay DaleIn Stock: 1258CMF55210R00FHEB Datasheet

UpgradeRFQ

CMF50210R00FHEB

Vishay DaleIn Stock: 872CMF50210R00FHEB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RNF14FTC210R is determined by the following critical parameters: resistance value (210 Ohms), tolerance (±1%), composition (metal film), and package type (axial). The identified substitute parts maintain these core electrical characteristics while offering variations in power rating and operating temperature range.

The CMF55210R00FHEB provides a higher power rating (0.5W) with extended operating temperature to 175°C, suitable for applications requiring increased thermal headroom. The CMF50210R00FHEB maintains the original 0.25W power rating while offering the same extended temperature range and improved moisture resistance. Both substitutes are manufactured by Vishay Dale and comply with ROHS3 standards.

Parameter Comparison

Engineering Selection Recommendations

For direct replacement in existing designs with identical thermal and spatial constraints, the CMF50210R00FHEB is the manufacturer-recommended substitute. This part maintains the 0.25W power rating and axial package configuration while providing extended operating temperature capability to 175°C and improved moisture resistance compared to the original RNF14FTC210R.

The CMF55210R00FHEB serves as an upgrade option for applications where increased power dissipation capacity is beneficial. The 0.5W rating provides additional thermal margin in high-current or high-ambient-temperature environments. Both Vishay Dale substitutes are ROHS3 compliant and maintain the ±1% tolerance and ±50ppm/°C temperature coefficient specifications.

All three parts are active products with confirmed inventory availability. Selection between substitutes should be based on application power requirements and thermal operating conditions.

Frequently Asked Questions (FAQ)

Q: Can CMF55210R00FHEB be used as a direct replacement for RNF14FTC210R?

A: Yes. Both parts share identical resistance (210 Ohms), tolerance (±1%), composition (metal film), and axial package type. The CMF55210R00FHEB provides higher power rating (0.5W vs 0.25W) and extended operating temperature range (-55°C ~ 175°C vs -55°C ~ 155°C), making it suitable for applications with greater thermal demands.

Q: What is the difference between CMF55210R00FHEB and CMF50210R00FHEB?

A: The primary difference is power rating: CMF55210R00FHEB is rated at 0.5W (1/2W), while CMF50210R00FHEB is rated at 0.25W (1/4W), matching the original part. Both offer extended operating temperature to 175°C and moisture resistance. Physical dimensions also differ, with CMF50210R00FHEB being more compact.

Q: Are there packaging format differences between these parts?

A: Yes. The RNF14FTC210R is supplied in Tape & Reel (TR) format, while both Vishay Dale substitutes (CMF55210R00FHEB and CMF50210R00FHEB) are supplied in Cut Tape (CT) format. This affects handling and assembly processes but does not impact electrical performance.

Q: Do all parts meet the same compliance standards?

A: All three parts are ROHS3 compliant. The RNF14FTC210R is REACH Unaffected, while the Vishay Dale substitutes are REACH Affected. Both manufacturers assign EAR99 ECCN classification and 8533.21.0090 HTSUS code.

Q: Which substitute should I select for a space-constrained application?

A: The CMF50210R00FHEB offers the most compact dimensions (0.065" Dia x 0.150" L) compared to the original RNF14FTC210R (0.093" Dia x 0.250" L), while maintaining the same 0.25W power rating and electrical specifications.