RNF14FTC536R Equivalent & Substitute Parts

Part Overview

The RNF14FTC536R is a 536 Ohm ±1% metal film through-hole resistor rated at 0.25W (1/4W) in axial package configuration, manufactured by Stackpole Electronics Inc. This component is classified as Active product status with ROHS3 compliance and flame retardant coating for safety applications. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are required due to inventory constraints, design flexibility, or application-specific performance needs.

Substiute Parts

RNF14FTC536R

Stackpole Electronics IncIn Stock: 905RNF14FTC536R Datasheet

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CMF55536R00FHEB

Vishay DaleIn Stock: 1828CMF55536R00FHEB Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RNF14FTC536R is determined by the following critical parameters:

Electrical Equivalence Requirements:

• Resistance value: 536 Ohms (exact match)
• Tolerance: ±1% (exact match)
• Temperature coefficient: ±50ppm/°C (exact match)
• Composition: Metal Film (exact match)

Mechanical Compatibility Requirements:

• Package type: Axial (exact match)
• Number of terminations: 2 (exact match)

Compliance & Safety Requirements:

• RoHS Status: ROHS3 Compliant (minimum requirement)
• Flame Retardant Coating: Required for safety applications

The CMF55536R00FHEB qualifies as a substitute because it maintains electrical equivalence in resistance, tolerance, and temperature coefficient while preserving axial package compatibility and safety certifications. The higher power rating (0.5W vs 0.25W) and extended operating temperature range (-55°C ~ 175°C vs -55°C ~ 155°C) represent performance enhancements that do not compromise backward compatibility.

Parameter Comparison

Engineering Selection Recommendations

The CMF55536R00FHEB substitute is electrically and mechanically equivalent to the RNF14FTC536R for applications requiring 536 Ohm ±1% metal film axial resistors. Both components maintain ROHS3 compliance and flame retardant safety features. The substitute offers increased power dissipation capability (0.5W vs 0.25W) and extended maximum operating temperature (175°C vs 155°C), making it suitable for higher thermal stress environments without derating. Physical dimensions are comparable with negligible variation. Selection between these components should be based on circuit power requirements and thermal operating conditions rather than electrical performance, as both deliver identical resistance and tolerance specifications.

Frequently Asked Questions (FAQ)

Q: Can CMF55536R00FHEB replace RNF14FTC536R in all applications? A: Yes, for applications operating within the RNF14FTC536R specifications. The substitute's higher power rating and extended temperature range provide additional design margin without introducing incompatibility.

Q: Are the physical dimensions compatible for PCB layout? A: Both components use axial package configuration with comparable dimensions (0.093" vs 0.090" diameter; 0.250" vs 0.240" length). Minor dimensional differences do not affect standard PCB footprint compatibility for axial resistors.

Q: Do both parts meet the same compliance standards? A: Yes. Both RNF14FTC536R and CMF55536R00FHEB are ROHS3 compliant with flame retardant coatings and safety certifications. The substitute includes additional moisture resistance features.

Q: What is the significance of the power rating difference? A: The CMF55536R00FHEB is rated at 0.5W compared to the RNF14FTC536R at 0.25W. This allows the substitute to dissipate twice the power without exceeding temperature limits, beneficial for circuits with higher current or thermal stress.

Q: Are there packaging differences between these parts? A: The main part is supplied in Tape & Reel (TR) packaging, while the substitute is supplied in Cut Tape (CT) packaging. Both are standard formats for through-hole component distribution and do not affect electrical performance.