RNF14FTC332R Equivalent & Substitute Parts

Part Overview

The RNF14FTC332R is a 332 Ohm ±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 construction, designed for applications requiring precision resistance in compact form factors. The part maintains Active product status with 1159 units in current inventory. Substitute parts are identified to address supply chain requirements, packaging preferences, or enhanced performance specifications while maintaining electrical and mechanical compatibility.

Substiute Parts

RNF14FTC332R

Stackpole Electronics IncIn Stock: 1240RNF14FTC332R Datasheet

Current PartRFQ

CMF55332R00FHEB

Vishay DaleIn Stock: 2572CMF55332R00FHEB Datasheet

UpgradeRFQ

CMF50332R00FHEB

Vishay DaleIn Stock: 6140CMF50332R00FHEB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RNF14FTC332R are qualified based on the following electrical and mechanical parameters:

Core Compatibility Criteria:

• Resistance value: 332 Ohms (exact match required)
• Tolerance: ±1% (exact match required)
• Composition: Metal Film (exact match required)
• Package: Axial through-hole (exact match required)
• Temperature Coefficient: ±50ppm/°C (exact match required)

Allowable Variations:

• Power rating: May be equal or higher than 0.25W
• Operating temperature range: May be equal or extended
• Physical dimensions: May vary within axial package constraints
• Packaging format: May differ (Tape & Reel vs. Cut Tape)
• Manufacturer: Different qualified manufacturers permitted

Substitute Classification:

CMF50332R00FHEB (Manufacturer Recommended): Matches all core parameters with identical 0.25W power rating and extended operating temperature range (-55°C ~ 175°C). Supplied by Vishay Dale in Cut Tape packaging.

CMF55332R00FHEB (Upgrade Option): Matches all core parameters with upgraded 0.5W power rating and extended operating temperature range (-55°C ~ 175°C). Supplied by Vishay Dale in Cut Tape packaging.

Parameter Comparison

Engineering Selection Recommendations

CMF50332R00FHEB (Manufacturer Recommended Substitute): Select this part for direct replacement requiring identical electrical specifications and power rating. This option provides extended operating temperature range (-55°C ~ 175°C vs. -55°C ~ 155°C) and adds moisture resistance while maintaining 0.25W power rating. All parts maintain ROHS3 compliance and REACH Unaffected status. Physical dimensions are smaller, which may require PCB layout verification. Supplied in Cut Tape packaging with 6108 units in inventory.

CMF55332R00FHEB (Upgrade Substitute): Select this part when application requirements permit higher power dissipation or when thermal margin enhancement is beneficial. The 0.5W rating provides additional thermal headroom compared to the 0.25W main part. Extended operating temperature range and moisture resistance features are included. All regulatory compliance certifications match the main part. Physical dimensions differ slightly from the main part. Supplied in Cut Tape packaging with 2473 units in inventory.

Frequently Asked Questions (FAQ)

Q: Can CMF50332R00FHEB be used as a direct replacement for RNF14FTC332R? A: Yes. Both parts share identical resistance (332 Ohms), tolerance (±1%), power rating (0.25W), composition (metal film), temperature coefficient (±50ppm/°C), and axial package type. The CMF50332R00FHEB provides extended operating temperature range and moisture resistance. Physical dimensions differ; verify PCB layout compatibility.

Q: What is the difference between CMF50332R00FHEB and CMF55332R00FHEB? A: The primary difference is power rating: CMF50332R00FHEB is rated 0.25W (matching the main part), while CMF55332R00FHEB is rated 0.5W (upgrade). Both share identical resistance, tolerance, and temperature coefficient. Physical dimensions vary between the two options. Select CMF55332R00FHEB when higher power dissipation capability is required.

Q: Are there packaging format differences between these parts? A: Yes. The main part RNF14FTC332R is supplied in Tape & Reel (TR) format. Both substitute parts (CMF50332R00FHEB and CMF55332R00FHEB) are supplied in Cut Tape (CT) format. Verify compatibility with your assembly process requirements.

Q: Do all parts meet the same regulatory compliance standards? A: Yes. RNF14FTC332R, CMF50332R00FHEB, and CMF55332R00FHEB are all ROHS3 Compliant and REACH Unaffected. All parts carry EAR99 ECCN classification and 8533.21.0090 HTSUS code.

Q: What is the temperature coefficient specification for these resistors? A: All three parts (main and substitutes) maintain a temperature coefficient of ±50ppm/°C, ensuring consistent resistance stability across temperature variations.

Q: Can I use CMF55332R00FHEB in place of RNF14FTC332R in a 0.25W application? A: Yes. The CMF55332R00FHEB is rated for 0.5W, which exceeds the 0.25W requirement. Using a higher-rated component in a lower-power application is electrically valid and provides additional thermal margin. Verify physical dimensions fit your PCB layout.