RNF14FAD2K61 Equivalent & Substitute Parts

Part Overview

The RNF14FAD2K61 is a 2.61 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 in active production status with 970 units in stock. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across alternative manufacturers.

Substiute Parts

RNF14FAD2K61

Stackpole Electronics IncIn Stock: 1069RNF14FAD2K61 Datasheet

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CMF552K6100FHEB

Vishay DaleIn Stock: 6382CMF552K6100FHEB Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RNF14FAD2K61 is determined by the following critical parameters:

• Resistance Value: Must be 2.61 kOhms
• Tolerance: Must be ±1% or tighter
• Composition: Must be Metal Film
• Package Type: Must be Axial (through-hole)
• Compliance: Must maintain ROHS3 compliance

The CMF552K6100FHEB qualifies as a substitute because it maintains identical resistance value and tolerance, uses metal film construction, and employs axial packaging. While the CMF552K6100FHEB offers higher power rating (0.5W vs 0.25W) and improved temperature coefficient (±50ppm/°C vs ±100ppm/°C), these represent performance enhancements rather than deviations from core specifications. Both parts are ROHS3 compliant and feature flame retardant construction.

Parameter Comparison

Engineering Selection Recommendations

Both the RNF14FAD2K61 and CMF552K6100FHEB are active production parts with ROHS3 compliance. Selection between these parts should be based on application-specific requirements:

The RNF14FAD2K61 is appropriate for applications where the 0.25W power rating is sufficient and space constraints favor the smaller form factor.

The CMF552K6100FHEB is suitable for applications requiring higher power dissipation capability (0.5W), improved temperature stability (±50ppm/°C), extended operating temperature range (-55°C ~ 175°C), or moisture-resistant construction. The higher inventory availability of the CMF552K6100FHEB may also support supply chain continuity.

Both parts maintain identical electrical specifications (2.61 kOhms ±1%) and axial package compatibility, ensuring functional interchangeability in circuits where power rating and thermal performance are not limiting factors.

Frequently Asked Questions (FAQ)

Q: Can the CMF552K6100FHEB directly replace the RNF14FAD2K61?

A: Yes, the CMF552K6100FHEB is electrically and mechanically compatible. Both parts provide 2.61 kOhms ±1% resistance in axial package format. The substitute offers equal or superior performance across all specified parameters.

Q: What is the difference in physical size between these parts?

A: The RNF14FAD2K61 measures 0.093" Dia x 0.250" L (2.35mm x 6.35mm). The CMF552K6100FHEB measures 0.090" Dia x 0.240" L (2.29mm x 6.10mm). Both are axial through-hole components with compatible lead spacing for standard PCB layouts.

Q: Why does the CMF552K6100FHEB have a higher power rating?

A: The CMF552K6100FHEB is rated for 0.5W (1/2W) compared to the RNF14FAD2K61 at 0.25W (1/4W). This reflects the physical construction and thermal characteristics of the Vishay Dale component. Higher power rating does not negatively impact applications requiring lower power dissipation.

Q: Are both parts RoHS compliant?

A: Yes, both the RNF14FAD2K61 and CMF552K6100FHEB are ROHS3 compliant.

Q: What is the temperature coefficient difference, and does it matter?

A: The RNF14FAD2K61 has a temperature coefficient of ±100ppm/°C, while the CMF552K6100FHEB is ±50ppm/°C. The substitute exhibits superior temperature stability. For applications with strict tolerance requirements across temperature ranges, the lower temperature coefficient of the CMF552K6100FHEB provides improved performance.

Q: Can I use the CMF552K6100FHEB in a space-constrained application?

A: The CMF552K6100FHEB is slightly smaller (0.090" Dia x 0.240" L vs 0.093" Dia x 0.250" L), making it suitable for space-constrained designs. Both parts use standard axial lead spacing compatible with existing PCB layouts.