RNF14BAC100R Equivalent & Substitute Parts

Part Overview

The RNF14BAC100R is a 100 Ohm metal film axial through-hole resistor manufactured by Stackpole Electronics Inc. This component is rated for 0.25W (1/4W) power dissipation with ±0.1% tolerance and features flame retardant coating for safety applications. The part is Active status and ROHS3 compliant, making it suitable for industrial and commercial electronic assemblies requiring precision resistive elements with tight tolerance specifications.

Substitute parts are identified when equivalent electrical characteristics and mechanical compatibility are maintained within the allowed parameter ranges for this resistor category.

Substiute Parts

RNF14BAC100R

Stackpole Electronics IncIn Stock: 1179RNF14BAC100R Datasheet

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CMF55100R00BEEB

Vishay DaleIn Stock: 1560CMF55100R00BEEB Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The CMF55100R00BEEB qualifies as a substitute for the RNF14BAC100R based on the following critical parameters:

• Resistance Value: Both parts are 100 Ohms
• Tolerance: Both maintain ±0.1% tolerance
• Composition: Both are metal film construction
• Package: Both use axial through-hole configuration
• Electrical Compatibility: The substitute part has higher power rating (0.5W vs 0.25W), which does not restrict its use in applications designed for the original part
• Compliance: Both are ROHS3 compliant and REACH unaffected
• Terminations: Both have 2 terminations for identical circuit integration

The substitute part exceeds the original specification in power handling capability and offers improved temperature coefficient performance (±25ppm/°C vs ±50ppm/°C) and extended operating temperature range (-55°C ~ 175°C vs -55°C ~ 155°C).

Parameter Comparison

Engineering Selection Recommendations

Both the RNF14BAC100R and CMF55100R00BEEB are Active status components with full ROHS3 compliance and REACH unaffected designation, qualifying them for equivalent use in precision resistive applications.

The CMF55100R00BEEB substitute offers enhanced performance margins through higher power dissipation capability (0.5W vs 0.25W), superior temperature coefficient stability (±25ppm/°C vs ±50ppm/°C), and extended operating temperature range to 175°C. Physical dimensions are comparable with minimal variation, ensuring compatibility in standard axial resistor footprints.

Selection between these parts should be based on application power requirements, thermal environment, and supply chain availability. Both parts maintain identical electrical specifications for resistance value and tolerance, supporting direct substitution in circuit designs.

Frequently Asked Questions (FAQ)

Q: Can CMF55100R00BEEB replace RNF14BAC100R in all applications?

A: Yes, within the electrical and mechanical parameters specified. The substitute part meets or exceeds all critical specifications including resistance value, tolerance, composition, and package type. The higher power rating and improved temperature coefficient provide additional performance margin.

Q: What are the physical compatibility considerations?

A: Both parts use axial through-hole packaging with 2 terminations. Dimensions are comparable (RNF14BAC100R: 0.093" Dia x 0.250" L; CMF55100R00BEEB: 0.090" Dia x 0.240" L), allowing installation in standard axial resistor footprints without modification.

Q: Are there compliance differences between these parts?

A: No. Both parts are ROHS3 compliant and REACH unaffected, meeting identical regulatory requirements for industrial and commercial applications.

Q: What is the significance of the temperature coefficient difference?

A: The CMF55100R00BEEB has a lower temperature coefficient (±25ppm/°C vs ±50ppm/°C), indicating superior resistance stability across temperature variations. This provides enhanced performance in precision measurement and control circuits operating across wide temperature ranges.

Q: Can the substitute part handle higher power dissipation?

A: Yes. The CMF55100R00BEEB is rated for 0.5W (1/2W) compared to the original 0.25W (1/4W) rating. This higher power capability does not restrict use in applications designed for the lower-rated original part.

Q: Are packaging formats different?

A: The original part is supplied in Tape & Box (TB) format, while the substitute is supplied in Cut Tape (CT) format. Both are standard packaging methods for axial resistors and do not affect electrical or mechanical compatibility.