PRNF14FTD2K37 Equivalent & Substitute Parts

Part Overview

The PRNF14FTD2K37 is a 2.37 kOhms ±1% metal film through-hole resistor rated at 0.25W (1/4W) in axial configuration, manufactured by Stackpole Electronics Inc. This component features flame retardant coating and safety characteristics, with an operating temperature range of -55°C to 155°C. The part is actively produced and ROHS3 compliant. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained within the allowed parameter tolerances for this resistor category.

Substiute Parts

PRNF14FTD2K37

Stackpole Electronics IncIn Stock: 672PRNF14FTD2K37 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

Substitute parts for the PRNF14FTD2K37 are qualified based on the following criteria:

Electrical Equivalence: Resistance value of 2.37 kOhms with ±1% tolerance is maintained across all substitutes.

Mechanical Compatibility: All substitutes use axial through-hole configuration, ensuring direct board-level compatibility.

Composition & Features: Metal film construction with flame retardant coating and safety characteristics is preserved.

Compliance: All substitutes maintain ROHS3 compliance and REACH unaffected status.

Packaging Consideration: The main part is supplied in Tape & Reel (TR) format. Substitute RNF14FTE2K37 is available in Cut Tape (CT) format from the same manufacturer series. Substitute CMF552K3700FHEB is available in Cut Tape (CT) format from Vishay Dale.

Power Rating Variation: CMF552K3700FHEB is rated at 0.5W (1/2W), which exceeds the 0.25W requirement and is acceptable for applications where the original 0.25W rating is sufficient.

Parameter Comparison

Engineering Selection Recommendations

RNF14FTE2K37 is the primary substitute from Stackpole Electronics Inc, offering identical electrical specifications to the PRNF14FTD2K37 with improved temperature coefficient performance (±25ppm/°C versus ±100ppm/°C). Both parts are ROHS3 compliant and actively produced. The difference in packaging format (Cut Tape versus Tape & Reel) does not affect electrical or mechanical compatibility. This substitute provides superior availability with 15212 units in stock.

CMF552K3700FHEB from Vishay Dale is a qualified substitute with higher power rating (0.5W versus 0.25W) and extended operating temperature range (-55°C to 175°C versus -55°C to 155°C). This part includes moisture resistant features in addition to flame retardant coating. ROHS3 compliance is maintained. Selection of this substitute is appropriate for applications requiring enhanced thermal performance or moisture resistance.

Frequently Asked Questions (FAQ)

Q: Can RNF14FTE2K37 be used as a direct replacement for PRNF14FTD2K37?

A: Yes. Both parts share identical resistance (2.37 kOhms), tolerance (±1%), power rating (0.25W), composition (metal film), and axial package configuration. The packaging format difference (Cut Tape versus Tape & Reel) does not affect circuit performance or board-level installation.

Q: What is the advantage of using CMF552K3700FHEB over the original part?

A: CMF552K3700FHEB provides higher power dissipation capability (0.5W versus 0.25W), extended maximum operating temperature (175°C versus 155°C), and moisture resistant coating. These characteristics are beneficial in applications with elevated thermal or humidity requirements while maintaining the same 2.37 kOhms resistance value.

Q: Are all substitutes ROHS3 compliant?

A: Yes. PRNF14FTD2K37, RNF14FTE2K37, and CMF552K3700FHEB are all ROHS3 compliant and REACH unaffected.

Q: Does the temperature coefficient difference affect substitution suitability?

A: Temperature coefficient values (±100ppm/°C, ±25ppm/°C, ±50ppm/°C) indicate resistance stability across temperature ranges. Lower values represent tighter tolerance maintenance. Selection depends on circuit precision requirements. All three parts operate within the specified temperature ranges without performance degradation for standard applications.

Q: Can CMF552K3700FHEB be used in applications designed for 0.25W resistors?

A: Yes. The higher power rating (0.5W) of CMF552K3700FHEB is a non-limiting characteristic. Applications designed for 0.25W resistors operate safely with 0.5W rated components, as power dissipation is determined by circuit conditions, not component rating.