PRNF14FTD237K Equivalent & Substitute Parts

Part Overview

The PRNF14FTD237K is a 237 kOhms ±1% metal film through-hole resistor manufactured by Stackpole Electronics Inc. This 1/4W axial component features flame retardant coating and safety construction, designed for general-purpose electronic applications requiring precision resistance values. The part is currently active in production with 670 pieces available in stock. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility allow direct replacement in circuit designs.

Substiute Parts

PRNF14FTD237K

Stackpole Electronics IncIn Stock: 704PRNF14FTD237K Datasheet

Current PartRFQ

CMF55237K00FHEB

Vishay DaleIn Stock: 10456CMF55237K00FHEB Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The CMF55237K00FHEB from Vishay Dale qualifies as a substitute based on the following critical parameters:

• Identical resistance value: 237 kOhms
• Identical tolerance: ±1%
• Identical composition: Metal Film
• Identical package configuration: Axial through-hole
• Identical RoHS3 compliance status
• Identical REACH unaffected status

The substitute part maintains all core electrical specifications required for circuit compatibility. Both parts are metal film axial resistors with matching resistance and tolerance values, ensuring functional equivalence in applications where the PRNF14FTD237K is specified.

Parameter Comparison

Engineering Selection Recommendations

Both the PRNF14FTD237K and CMF55237K00FHEB are active production components with ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component manufacturing and use.

The CMF55237K00FHEB offers enhanced specifications in several areas: higher power rating (0.5W versus 0.25W), improved temperature coefficient (±50ppm/°C versus ±100ppm/°C), and extended operating temperature range (-55°C to 175°C versus -55°C to 155°C). These characteristics make the substitute suitable for applications requiring greater thermal stability or higher power dissipation capacity.

Selection between these parts depends on circuit power requirements and thermal performance specifications. The substitute part provides superior performance margins while maintaining electrical equivalence through identical resistance value and tolerance.

Frequently Asked Questions (FAQ)

Q: Can CMF55237K00FHEB replace PRNF14FTD237K in all applications?

A: Both parts share identical resistance value (237 kOhms) and tolerance (±1%), making them electrically equivalent. The substitute has higher power rating and better temperature coefficient, which are compatible with applications designed for the original part. Mechanical fit is identical as both use axial through-hole packaging.

Q: What is the difference in power rating between these parts?

A: The PRNF14FTD237K is rated at 0.25W (1/4W), while the CMF55237K00FHEB is rated at 0.5W (1/2W). The substitute can handle twice the power dissipation, providing additional design margin in circuits with variable load conditions.

Q: Are there packaging differences?

A: The main part comes in Tape & Reel (TR) packaging, while the substitute is supplied in Cut Tape (CT) format. Both are suitable for through-hole assembly; packaging format selection depends on manufacturing process requirements.

Q: Do both parts meet current compliance standards?

A: Yes. Both the PRNF14FTD237K and CMF55237K00FHEB are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic components.

Q: What is the temperature coefficient difference?

A: The PRNF14FTD237K has a temperature coefficient of ±100ppm/°C, while the CMF55237K00FHEB has ±50ppm/°C. The substitute exhibits better resistance stability across temperature variations, beneficial for precision applications.