RNF14FAD3K92 Equivalent & Substitute Parts

Part Overview

The RNF14FAD3K92 is a 3.92 kOhms ±1% metal film through-hole resistor rated at 0.25W (1/4W) in axial package configuration, manufactured by Stackpole Electronics Inc. This component features flame retardant coating and safety-grade construction suitable for general-purpose electronic applications. The part is currently active in production with 714 units in stock. Substitute parts are identified to address packaging availability, inventory levels, and performance upgrade requirements while maintaining electrical and mechanical compatibility.

Substiute Parts

RNF14FAD3K92

Stackpole Electronics IncIn Stock: 776RNF14FAD3K92 Datasheet

Current PartRFQ

RNF14FTD3K92

Stackpole Electronics IncIn Stock: 23919RNF14FTD3K92 Datasheet

DirectRFQ

CMF553K9200FHEB

Vishay DaleIn Stock: 6867CMF553K9200FHEB Datasheet

UpgradeRFQ

CMF553K9200FHEK

Vishay DaleIn Stock: 809CMF553K9200FHEK Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts are classified into two categories based on allowed electrical and mechanical parameters:

Direct Equivalent (Same Electrical Specifications): RNF14FTD3K92 maintains identical electrical characteristics: 3.92 kOhms ±1% resistance, 0.25W power rating, ±100ppm/°C temperature coefficient, and -55°C ~ 155°C operating range. The substitution is valid based on matching resistance value, tolerance, power rating, composition (metal film), package type (axial), and compliance certifications. The only difference is packaging format (Cut Tape vs. Tape & Box), which does not affect electrical or mechanical performance.

Upgrade Equivalent (Enhanced Performance): CMF553K9200FHEB and CMF553K9200FHEK (Vishay Dale) maintain the same resistance value (3.92 kOhms) and tolerance (±1%), but provide enhanced specifications: 0.5W power rating (vs. 0.25W), improved temperature coefficient (±50ppm/°C vs. ±100ppm/°C), extended operating temperature range (-55°C ~ 175°C vs. -55°C ~ 155°C), and moisture-resistant construction. These upgrades are mechanically compatible (axial package, metal film composition) and electrically backward-compatible for applications requiring the same resistance value.

Parameter Comparison

Engineering Selection Recommendations

RNF14FTD3K92 is the direct substitute when packaging format change is acceptable. This part maintains all electrical and mechanical specifications of the RNF14FAD3K92 while offering significantly higher inventory availability (23,877 units vs. 714 units). Both parts are ROHS3 compliant and REACH unaffected, ensuring regulatory equivalence.

CMF553K9200FHEB is the recommended upgrade substitute for applications requiring enhanced thermal stability and extended operating temperature range. The improved temperature coefficient (±50ppm/°C) and higher power rating (0.5W) provide performance margin in demanding environments. This part is ROHS3 compliant and REACH unaffected, with adequate inventory (6,805 units).

CMF553K9200FHEK provides identical electrical upgrades to CMF553K9200FHEB but is supplied in bulk packaging with lower inventory (748 units). This part carries REACH Affected status, requiring compliance verification in regulated supply chains.

All substitute parts maintain axial package configuration and metal film composition, ensuring mechanical fit and thermal characteristics equivalent to the original specification.

Frequently Asked Questions (FAQ)

Q: Can RNF14FTD3K92 be used as a direct replacement for RNF14FAD3K92? A: Yes. Both parts share identical electrical specifications (3.92 kOhms ±1%, 0.25W, ±100ppm/°C, -55°C ~ 155°C). The only difference is packaging format (Cut Tape vs. Tape & Box), which does not affect circuit performance or mechanical compatibility.

Q: What are the advantages of upgrading to CMF553K9200FHEB or CMF553K9200FHEK? A: The Vishay Dale CMF series provides enhanced specifications: doubled power rating (0.5W vs. 0.25W), improved temperature coefficient (±50ppm/°C vs. ±100ppm/°C), and extended operating temperature range (-55°C ~ 175°C vs. -55°C ~ 155°C). These upgrades are electrically and mechanically backward-compatible for applications using the same 3.92 kOhms resistance value.

Q: Are all substitute parts RoHS compliant? A: All four parts are ROHS3 compliant. However, CMF553K9200FHEK carries REACH Affected status, while the other three parts are REACH Unaffected. Verify REACH compliance requirements for your specific supply chain before selection.

Q: Do the substitute parts fit the same PCB footprint? A: Yes. All parts use axial package configuration with compatible mechanical dimensions. RNF14FAD3K92, RNF14FTD3K92, and the CMF series parts are mechanically interchangeable in standard through-hole applications.

Q: Which substitute should I choose for high-temperature applications? A: CMF553K9200FHEB or CMF553K9200FHEK are suitable for applications requiring operation above 155°C, as they support -55°C ~ 175°C range. The improved temperature coefficient (±50ppm/°C) also provides better stability across the extended range.