RNF14FTC1K65 Equivalent & Substitute Parts

Part Overview

The RNF14FTC1K65 is a 1.65 kOhms ±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 values with tight tolerance specifications. The part is currently in active production status with 971 units in stock inventory.

Substitute parts are identified to provide design flexibility when the primary component becomes unavailable or when application requirements necessitate alternative electrical or mechanical characteristics within the same functional category.

Substiute Parts

RNF14FTC1K65

Stackpole Electronics IncIn Stock: 1007RNF14FTC1K65 Datasheet

Current PartRFQ

CMF551K6500FHEB

Vishay DaleIn Stock: 1431CMF551K6500FHEB Datasheet

UpgradeRFQ

CMF501K6500FHEB

Vishay DaleIn Stock: 6620CMF501K6500FHEB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RNF14FTC1K65 are qualified based on the following electrical and mechanical parameters:

Critical Parameters (Must Match):

• Resistance value: 1.65 kOhms
• Tolerance: ±1%
• Composition: Metal Film
• Temperature Coefficient: ±50ppm/°C
• Package Type: Axial
• RoHS Compliance: ROHS3 Compliant

Allowable Variations:

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

The identified substitutes maintain identical electrical specifications while offering enhanced thermal performance or alternative packaging configurations suitable for equivalent circuit applications.

Parameter Comparison

Engineering Selection Recommendations

CMF501K6500FHEB (MFR Recommended): This substitute maintains identical power rating (0.25W) and package type (Axial) to the RNF14FTC1K65 while providing extended operating temperature range (-55°C ~ 175°C) and enhanced moisture resistance. The electrical specifications remain equivalent, making this the direct functional replacement. Higher inventory availability (6595 units) supports supply chain continuity.

CMF551K6500FHEB (Upgrade Option): This substitute provides doubled power dissipation capability (0.5W vs. 0.25W) with identical electrical characteristics and extended temperature range. Selection of this upgrade is appropriate when circuit design permits higher power rating or when thermal margin enhancement is beneficial. Slightly reduced physical dimensions may require PCB layout verification.

Both substitutes maintain ROHS3 compliance and carry equivalent regulatory certifications (EAR99, HTSUS 8533.21.0090) as the original component.

Frequently Asked Questions (FAQ)

Q: Can CMF501K6500FHEB be used as a direct replacement for RNF14FTC1K65?

A: Yes. Both components share identical resistance (1.65 kOhms), tolerance (±1%), power rating (0.25W), composition (metal film), and temperature coefficient (±50ppm/°C). The extended operating temperature range of the CMF501K6500FHEB (-55°C ~ 175°C vs. -55°C ~ 155°C) provides additional thermal margin without affecting circuit performance.

Q: What is the difference between the two substitute options?

A: CMF501K6500FHEB matches the original power rating (0.25W), while CMF551K6500FHEB provides doubled power dissipation (0.5W). Both maintain identical electrical specifications. The CMF551K6500FHEB is suitable when higher thermal headroom is required or when circuit design permits the upgrade.

Q: Are there physical dimension differences between these parts?

A: Yes. The RNF14FTC1K65 measures 0.093" Dia x 0.250" L (2.35mm x 6.35mm). The CMF551K6500FHEB measures 0.090" Dia x 0.240" L (2.29mm x 6.10mm), and the CMF501K6500FHEB measures 0.065" Dia x 0.150" L (1.65mm x 3.81mm). All remain within axial package constraints and are compatible with standard through-hole PCB layouts.

Q: Do packaging format differences affect electrical compatibility?

A: No. The RNF14FTC1K65 is supplied in Tape & Reel format, while both substitutes are supplied in Cut Tape format. This affects only procurement and assembly handling, not electrical performance or circuit compatibility.

Q: Are all parts RoHS compliant?

A: Yes. The RNF14FTC1K65, CMF501K6500FHEB, and CMF551K6500FHEB are all ROHS3 compliant with REACH Unaffected status.