RNF14FTC3M01 Equivalent & Substitute Parts

Part Overview

The RNF14FTC3M01 is a 3.01 MOhms ±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 in compact form factors. The part maintains Active product status with 1145 units in current inventory. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility allow direct replacement while maintaining circuit performance and reliability requirements.

Substiute Parts

RNF14FTC3M01

Stackpole Electronics IncIn Stock: 1244RNF14FTC3M01 Datasheet

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CMF553M0100FHEB

Vishay DaleIn Stock: 1647CMF553M0100FHEB Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RNF14FTC3M01 is determined by the following critical parameters:

• Resistance Value: Must be 3.01 MOhms
• Tolerance: Must be ±1%
• Composition: Must be Metal Film
• Package Type: Must be Axial
• Temperature Coefficient: Must be ±50ppm/°C
• Regulatory Compliance: Must maintain ROHS3 Compliant status

The CMF553M0100FHEB qualifies as a substitute because it matches all critical electrical parameters. 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 compatibility. Physical dimensions remain within acceptable axial package tolerances for standard PCB mounting.

Parameter Comparison

Engineering Selection Recommendations

Both the RNF14FTC3M01 and CMF553M0100FHEB maintain Active product status and ROHS3 Compliant certification. The CMF553M0100FHEB provides increased power dissipation capability (0.5W vs 0.25W) and extended upper operating temperature limit (175°C vs 155°C), making it suitable for applications with higher thermal demands or elevated ambient conditions. Both components are manufactured to metal film specifications with identical tolerance and temperature coefficient characteristics. Selection between these parts should be based on circuit power requirements and thermal environment specifications.

Frequently Asked Questions (FAQ)

Q: Can the CMF553M0100FHEB replace the RNF14FTC3M01 in all applications?

A: The CMF553M0100FHEB is electrically and mechanically compatible as a direct substitute. The higher power rating and extended temperature range do not create incompatibility. Verify that PCB layout accommodates the slightly smaller physical dimensions (0.090" Dia x 0.240" L vs 0.093" Dia x 0.250" L).

Q: What is the significance of the higher power rating on the CMF553M0100FHEB?

A: The 0.5W rating on the CMF553M0100FHEB provides greater thermal margin compared to the 0.25W rating of the RNF14FTC3M01. This allows operation in higher power dissipation scenarios without exceeding component temperature limits.

Q: Are there packaging differences between these parts?

A: The RNF14FTC3M01 is supplied in Tape & Reel (TR) packaging, while the CMF553M0100FHEB is supplied in Cut Tape (CT) packaging. Both are standard axial package formats compatible with standard PCB assembly processes.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both the RNF14FTC3M01 and CMF553M0100FHEB are ROHS3 Compliant, REACH Unaffected, and classified under ECCN EAR99, meeting identical regulatory standards.

Q: What is the tolerance specification for these resistors?

A: Both parts maintain ±1% tolerance, ensuring equivalent precision in circuit applications requiring tight resistance value control.