RNF14BAC422R Equivalent & Substitute Parts

Part Overview

The RNF14BAC422R is a 422 Ohm metal film axial resistor manufactured by Stackpole Electronics Inc. This 1/4W (0.25W) component features ±0.1% tolerance and flame retardant coating, designed for precision applications requiring tight tolerance specifications. The part maintains Active product status with 1164 units in current inventory. Substitute parts are identified when equivalent electrical and mechanical parameters are required due to supply constraints, design optimization, or application-specific performance needs.

Substiute Parts

RNF14BAC422R

Stackpole Electronics IncIn Stock: 1245RNF14BAC422R Datasheet

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CMF55422R00BHEA

Vishay DaleIn Stock: 7330CMF55422R00BHEA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RNF14BAC422R is determined by the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 422 Ohms
• Tolerance: ±0.1%
• Composition: Metal Film
• Package: Axial
• Temperature Coefficient: ±50ppm/°C
• RoHS Compliance: ROHS3 Compliant

Allowable Variation Parameters:

• Power rating may be equal or higher (0.25W minimum)
• Operating temperature range may be equal or extended
• Physical dimensions may vary within axial package specifications
• Packaging format (Tape & Box vs. Cut Tape) does not affect electrical equivalence

The CMF55422R00BHEA meets all mandatory matching parameters while providing enhanced power rating (0.5W vs. 0.25W) and extended operating temperature range (-55°C to 175°C vs. -55°C to 155°C).

Parameter Comparison

Engineering Selection Recommendations

Both the RNF14BAC422R and CMF55422R00BHEA are Active status components with ROHS3 compliance and REACH unaffected certification. Selection between these parts is based on application requirements:

Select RNF14BAC422R when:

• Exact 0.25W power rating specification is required
• Operating temperature does not exceed 155°C
• Stackpole Electronics Inc sourcing is mandated

Select CMF55422R00BHEA when:

• Higher power dissipation capability (0.5W) provides design margin
• Operating temperature range extends to 175°C
• Moisture resistance is beneficial for the application environment
• Supply availability of Vishay Dale components is preferred

Both components satisfy identical electrical specifications (422 Ohms, ±0.1% tolerance, ±50ppm/°C temperature coefficient) and are suitable for precision circuit applications.

Frequently Asked Questions (FAQ)

Q: Can CMF55422R00BHEA replace RNF14BAC422R in all applications?

A: Yes, for applications where the circuit design accommodates the higher power rating (0.5W vs. 0.25W) and the operating temperature range does not exceed 175°C. The CMF55422R00BHEA provides equivalent electrical performance with enhanced thermal capability.

Q: Are the physical dimensions compatible between these parts?

A: Both components use axial package configuration. RNF14BAC422R dimensions are 0.093" Dia x 0.250" L (2.35mm x 6.35mm); CMF55422R00BHEA dimensions are 0.090" Dia x 0.240" L (2.29mm x 6.10mm). Minor dimensional differences are within standard axial resistor tolerance and do not affect PCB layout compatibility.

Q: What is the significance of the ±0.1% tolerance specification?

A: The ±0.1% tolerance indicates precision metal film construction suitable for applications requiring tight resistance accuracy. Both parts meet this specification identically, ensuring equivalent performance in precision circuits.

Q: Does packaging format (Tape & Box vs. Cut Tape) affect electrical performance?

A: No. Packaging format affects only handling, storage, and assembly logistics. Electrical and mechanical specifications remain identical regardless of packaging configuration.

Q: Are both parts compliant with current regulatory requirements?

A: Yes. Both RNF14BAC422R and CMF55422R00BHEA are ROHS3 compliant and REACH unaffected, meeting current electronic component regulatory standards.