RNF14FTC84K5 Equivalent & Substitute Parts

Part Overview

The RNF14FTC84K5 is a 84.5 kOhms ±1% 0.25W (1/4W) through-hole axial resistor manufactured by Stackpole Electronics Inc. This metal film resistor features flame retardant coating and safety construction, designed for applications requiring precision resistance values with tight tolerance specifications. The part is currently active in production with 962 units in stock. Substitute parts may be required due to supply constraints, packaging preferences, or application-specific thermal requirements.

Substiute Parts

RNF14FTC84K5

Stackpole Electronics IncIn Stock: 1068RNF14FTC84K5 Datasheet

Current PartRFQ

CMF5584K500FHEB

Vishay DaleIn Stock: 1968CMF5584K500FHEB Datasheet

UpgradeRFQ

CMF5084K500FHEB

Vishay DaleIn Stock: 1927CMF5084K500FHEB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RNF14FTC84K5 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 84.5 kOhms
• Tolerance: ±1%
• Composition: Metal Film
• Package type: Axial
• Temperature coefficient: ±50ppm/°C

Allowable Variations:

• Power rating: May be equal or higher than 0.25W
• Operating temperature range: May be equal or extended beyond -55°C ~ 155°C
• Physical dimensions: May vary within axial package constraints
• Packaging format: Tape & Reel (TR) or Cut Tape (CT) are interchangeable for component selection
• Additional features: Moisture resistance is an allowable enhancement

The substitute parts listed below maintain all mandatory parameters while offering equal or superior operating characteristics.

Parameter Comparison

Engineering Selection Recommendations

CMF5584K500FHEB (Upgrade Option): This substitute provides a higher power rating of 0.5W compared to the original 0.25W specification. The extended operating temperature range to 175°C and moisture-resistant features offer enhanced reliability. This part is suitable for applications where thermal margin or environmental protection is beneficial. Both parts maintain ROHS3 compliance and identical electrical characteristics.

CMF5084K500FHEB (Direct Equivalent): This substitute matches the original 0.25W power rating while providing identical electrical performance. The extended operating temperature range to 175°C and moisture-resistant construction represent functional improvements without specification changes. This part is the manufacturer-recommended equivalent and maintains full compatibility with the original design. ROHS3 compliance is maintained.

Both substitute parts are active products with higher inventory availability than the original part.

Frequently Asked Questions (FAQ)

Q: Can CMF5584K500FHEB replace RNF14FTC84K5 in my circuit?

A: Yes. The CMF5584K500FHEB maintains identical resistance (84.5 kOhms), tolerance (±1%), temperature coefficient (±50ppm/°C), and axial package configuration. The higher power rating (0.5W vs 0.25W) is a non-limiting enhancement. Both parts are ROHS3 compliant metal film resistors with flame retardant coating.

Q: What is the difference between CMF5584K500FHEB and CMF5084K500FHEB?

A: The primary difference is power rating. CMF5584K500FHEB is rated at 0.5W (1/2W), while CMF5084K500FHEB is rated at 0.25W (1/4W), matching the original specification. Both offer extended operating temperature to 175°C and moisture resistance. Physical dimensions differ due to the power rating difference.

Q: Are the physical dimensions compatible with my PCB layout?

A: All three parts use axial package configuration. However, physical dimensions vary: RNF14FTC84K5 is 0.093" Dia x 0.250" L, CMF5584K500FHEB is 0.090" Dia x 0.240" L, and CMF5084K500FHEB is 0.065" Dia x 0.150" L. Verify PCB footprint compatibility before selection.

Q: Do packaging format differences (Tape & Reel vs Cut Tape) affect component performance?

A: No. Packaging format (TR or CT) affects only handling and assembly logistics, not electrical or mechanical performance. Component selection can proceed based on packaging availability and assembly process requirements.

Q: Are all substitute parts RoHS compliant?

A: Yes. RNF14FTC84K5, CMF5584K500FHEB, and CMF5084K500FHEB are all ROHS3 compliant. REACH status is unaffected for all parts.