PRNF14FTD8K87 Equivalent & Substitute Parts

Part Overview

The PRNF14FTD8K87 is an 8.87 kOhms ±1% metal film through-hole resistor rated at 0.25W (1/4W) in axial configuration, manufactured by Stackpole Electronics Inc. This component is part of the RNF series and maintains active product status. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are required for design flexibility, inventory optimization, or supply chain continuity.

Substiute Parts

PRNF14FTD8K87

Stackpole Electronics IncIn Stock: 774PRNF14FTD8K87 Datasheet

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CMF558K8700FHEB

Vishay DaleIn Stock: 1975CMF558K8700FHEB Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the PRNF14FTD8K87 is permissible when the following criteria are met:

• Resistance value matches exactly: 8.87 kOhms
• Tolerance specification matches or exceeds: ±1%
• Power rating meets or exceeds: 0.25W minimum
• Package configuration remains: Axial through-hole
• Composition type: Metal Film
• Operating temperature range encompasses or exceeds: -55°C ~ 155°C
• Regulatory compliance maintained: ROHS3 Compliant

The CMF558K8700FHEB from Vishay Dale satisfies all substitution criteria with enhanced specifications in power rating and temperature coefficient performance.

Parameter Comparison

Engineering Selection Recommendations

Both the PRNF14FTD8K87 and CMF558K8700FHEB maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for equivalent component selection. The CMF558K8700FHEB provides enhanced thermal performance with a lower temperature coefficient (±50ppm/°C versus ±100ppm/°C) and extended maximum operating temperature (175°C versus 155°C). The substitute component's 0.5W power rating exceeds the original 0.25W specification, providing additional thermal margin in circuit applications. Both components are active products with confirmed inventory availability.

Frequently Asked Questions (FAQ)

Q: Can the CMF558K8700FHEB directly replace the PRNF14FTD8K87 in existing designs?

A: Yes. Both components share identical resistance (8.87 kOhms), tolerance (±1%), and axial package configuration. The substitute's higher power rating and extended temperature range provide enhanced performance margins without circuit modification.

Q: What is the significance of the temperature coefficient difference?

A: The CMF558K8700FHEB exhibits ±50ppm/°C compared to the PRNF14FTD8K87's ±100ppm/°C. Lower temperature coefficient values indicate improved resistance stability across temperature variations, beneficial for precision analog circuits and temperature-sensitive applications.

Q: Are there packaging considerations when substituting these components?

A: The main part is supplied in Tape & Reel (TR) format while the substitute is supplied in Cut Tape (CT) format. Both are axial through-hole components with compatible mechanical dimensions (2.35mm × 6.35mm versus 2.29mm × 6.10mm), suitable for standard PCB assembly processes.

Q: Do both components meet the same regulatory standards?

A: Yes. Both the PRNF14FTD8K87 and CMF558K8700FHEB are ROHS3 compliant and REACH unaffected, meeting equivalent regulatory requirements for industrial and commercial applications.

Q: What advantage does the higher power rating provide?

A: The CMF558K8700FHEB's 0.5W rating versus the original 0.25W allows operation at higher current levels or provides thermal derating margin in high-dissipation circuit environments, extending component reliability.