RNF14FAD2K37 Equivalent & Substitute Parts

Part Overview

The RNF14FAD2K37 is a 2.37 kOhms ±1% metal film axial through-hole resistor rated at 0.25W (1/4W) with flame retardant coating and safety features. Manufactured by Stackpole Electronics Inc, this component is classified as Active product status. Substitute parts may be required due to inventory constraints, packaging format preferences, or application-specific performance requirements such as improved temperature coefficient or higher power rating.

Substiute Parts

RNF14FAD2K37

Stackpole Electronics IncIn Stock: 1030RNF14FAD2K37 Datasheet

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RNF14FTE2K37

Stackpole Electronics IncIn Stock: 15242RNF14FTE2K37 Datasheet

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CMF552K3700FHEB

Vishay DaleIn Stock: 3816CMF552K3700FHEB Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RNF14FAD2K37 is determined by the following mandatory parameters:

• Resistance Value: Must be 2.37 kOhms
• Tolerance: Must be ±1%
• Composition: Must be Metal Film
• Package Type: Must be Axial
• Compliance: Must maintain ROHS3 Compliant status

The identified substitute parts meet these core requirements. Variations in packaging format (Tape & Box versus Cut Tape), temperature coefficient, power rating, and operating temperature range represent secondary differences that do not prevent functional substitution in applications where the main part specifications are met.

Parameter Comparison

Engineering Selection Recommendations

RNF14FTE2K37 (Stackpole Electronics Inc): This substitute maintains identical electrical specifications to the main part with the same power rating (0.25W) and operating temperature range (-55°C ~ 155°C). The primary difference is packaging format (Cut Tape versus Tape & Box) and an improved temperature coefficient (±25ppm/°C versus ±100ppm/°C). Both parts are Active status and ROHS3 Compliant. Selection of this part is appropriate when Cut Tape packaging is acceptable and improved temperature stability is beneficial.

CMF552K3700FHEB (Vishay Dale): This substitute provides identical resistance, tolerance, and composition specifications with enhanced power rating (0.5W versus 0.25W) and extended operating temperature range (-55°C ~ 175°C). Additional moisture resistance feature is included. Both parts are Active status and ROHS3 Compliant. Selection of this part is appropriate for applications requiring higher power dissipation capability or operation at elevated temperatures.

Frequently Asked Questions (FAQ)

Q: Can RNF14FTE2K37 be used as a direct replacement for RNF14FAD2K37?

A: Yes. Both parts share identical resistance (2.37 kOhms), tolerance (±1%), power rating (0.25W), composition (Metal Film), and operating temperature range (-55°C ~ 155°C). The difference in packaging format (Cut Tape versus Tape & Box) does not affect electrical performance. The improved temperature coefficient of RNF14FTE2K37 (±25ppm/°C) provides enhanced stability.

Q: Can CMF552K3700FHEB be used as a direct replacement for RNF14FAD2K37?

A: Yes, with consideration for application requirements. All critical electrical parameters match (2.37 kOhms, ±1% tolerance, Metal Film composition). The CMF552K3700FHEB provides higher power rating (0.5W versus 0.25W) and extended operating temperature range (-55°C ~ 175°C). Physical dimensions differ slightly (0.090" Dia x 0.240" L versus 0.093" Dia x 0.250" L), which may require verification in space-constrained applications.

Q: What is the significance of temperature coefficient differences?

A: Temperature coefficient indicates resistance value change per degree Celsius. RNF14FAD2K37 has ±100ppm/°C, RNF14FTE2K37 has ±25ppm/°C, and CMF552K3700FHEB has ±50ppm/°C. Lower values indicate greater stability across temperature variations. Selection depends on application sensitivity to resistance drift over the operating temperature range.

Q: Are all substitute parts ROHS3 Compliant?

A: Yes. RNF14FAD2K37, RNF14FTE2K37, and CMF552K3700FHEB are all ROHS3 Compliant with REACH Unaffected status, meeting current environmental and regulatory requirements.

Q: What packaging formats are available?

A: RNF14FAD2K37 is supplied in Tape & Box (TB) format. Both RNF14FTE2K37 and CMF552K3700FHEB are supplied in Cut Tape (CT) format. Packaging selection affects handling, storage, and automated assembly compatibility.