RNF14FTC523R Equivalent & Substitute Parts

Part Overview

The RNF14FTC523R is a 523 Ohm ±1% 0.25W axial through-hole metal film resistor manufactured by Stackpole Electronics Inc. This component is classified as Active product status and is RoHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required, or when the original part becomes unavailable or inventory constraints necessitate alternative sourcing.

Substiute Parts

RNF14FTC523R

Stackpole Electronics IncIn Stock: 879RNF14FTC523R Datasheet

Current PartRFQ

CMF55523R00BEEB

Vishay DaleIn Stock: 2417CMF55523R00BEEB Datasheet

UpgradeRFQ

CMF55523R00FHEB

Vishay DaleIn Stock: 2242CMF55523R00FHEB Datasheet

UpgradeRFQ

CMF50523R00FHEB

Vishay DaleIn Stock: 1801CMF50523R00FHEB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RNF14FTC523R are qualified based on the following criteria:

Electrical Equivalence: All substitute parts maintain the same resistance value of 523 Ohms with tolerance specifications that meet or exceed the original ±1% requirement.

Mechanical Compatibility: All substitutes use axial through-hole package configuration, ensuring direct board-level compatibility.

Environmental Specifications: All substitutes operate within or exceed the original operating temperature range of -55°C ~ 155°C and maintain RoHS3 compliance.

Composition: All substitutes are metal film resistors with flame retardant coating and safety features, matching the original composition.

The substitute parts are categorized as follows:

• Upgrade substitutes (CMF55523R00BEEB, CMF55523R00FHEB): Higher power rating (0.5W) with improved tolerance and temperature coefficient specifications
• Direct equivalent (CMF50523R00FHEB): Identical power rating (0.25W) and tolerance (±1%) with enhanced moisture resistance

Parameter Comparison

Engineering Selection Recommendations

All substitute parts maintain Active product status and ROHS3 compliance, ensuring regulatory alignment with the original component.

CMF50523R00FHEB provides direct electrical and mechanical equivalence to the RNF14FTC523R with identical 0.25W power rating and ±1% tolerance. This part is recommended for direct replacement applications where form factor and performance specifications must remain unchanged.

CMF55523R00FHEB offers increased power dissipation capability (0.5W) while maintaining ±1% tolerance and identical temperature coefficient. This substitute is suitable for applications where thermal margin improvement is beneficial without altering circuit behavior.

CMF55523R00BEEB provides the highest tolerance specification (±0.1%) and improved temperature coefficient (±25ppm/°C) with 0.5W power rating. This substitute is applicable in precision measurement or high-stability circuit applications.

All three substitutes feature moisture-resistant properties and extended operating temperature range (-55°C ~ 175°C) compared to the original specification.

Frequently Asked Questions (FAQ)

Q: Can CMF50523R00FHEB be used as a direct replacement for RNF14FTC523R?

A: Yes. Both components share identical resistance (523 Ohms), tolerance (±1%), power rating (0.25W), and axial package configuration. The CMF50523R00FHEB includes enhanced moisture resistance and extended operating temperature range to 175°C.

Q: What is the difference between the two 0.5W substitutes (CMF55523R00BEEB and CMF55523R00FHEB)?

A: CMF55523R00BEEB specifies ±0.1% tolerance with ±25ppm/°C temperature coefficient. CMF55523R00FHEB specifies ±1% tolerance with ±50ppm/°C temperature coefficient. Both operate at 0.5W power rating. Selection depends on circuit tolerance requirements.

Q: Are all substitute parts physically compatible with the original PCB layout?

A: All substitutes use axial through-hole package configuration. Physical dimensions vary slightly: RNF14FTC523R measures 0.093" Dia x 0.250" L, while CMF series parts measure 0.090" Dia x 0.240" L (CMF55) or 0.065" Dia x 0.150" L (CMF50). Axial lead spacing remains compatible with standard 0.4" pitch hole patterns.

Q: Do all parts meet the same compliance standards?

A: Yes. All parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with identical HTSUS code 8533.21.0090.

Q: Can a 0.5W substitute be used in a circuit designed for 0.25W?

A: Yes. A higher power-rated component can be substituted in a circuit designed for lower power dissipation. The 0.5W rated parts will operate safely at power levels up to 0.25W with improved thermal margin.