PRNF14FTD68R1 Equivalent & Substitute Parts

Part Overview

The PRNF14FTD68R1 is a 68.1 Ohm ±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 may be required due to packaging availability, inventory constraints, or application-specific performance requirements such as higher power ratings or improved temperature coefficients.

Substiute Parts

PRNF14FTD68R1

Stackpole Electronics IncIn Stock: 931PRNF14FTD68R1 Datasheet

Current PartRFQ

RNF14FTD68R1

Stackpole Electronics IncIn Stock: 11956RNF14FTD68R1 Datasheet

DirectRFQ

CMF5568R100FHEB

Vishay DaleIn Stock: 3888CMF5568R100FHEB Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PRNF14FTD68R1 is determined by the following critical parameters:

Direct Substitutes maintain identical electrical specifications: 68.1 Ohm resistance, ±1% tolerance, 0.25W power rating, metal film composition, and axial package configuration. The RNF14FTD68R1 qualifies as a direct substitute with identical specifications but different packaging format (Cut Tape versus Tape & Reel).

Upgrade Substitutes provide enhanced performance characteristics while maintaining core compatibility: identical resistance value and tolerance, but with increased power rating (0.5W versus 0.25W), improved temperature coefficient (±50ppm/°C versus ±100ppm/°C), and extended operating temperature range (-55°C ~ 175°C versus -55°C ~ 155°C). The CMF5568R100FHEB from Vishay Dale represents an upgrade substitute suitable for applications requiring higher power dissipation or tighter thermal stability.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitution (RNF14FTD68R1): This part is electrically and mechanically identical to the main part number PRNF14FTD68R1. Selection is appropriate when packaging format (Cut Tape) is compatible with assembly processes. Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment.

Upgrade Substitution (CMF5568R100FHEB): This Vishay Dale component is suitable for applications where increased power dissipation capacity or improved temperature stability is beneficial. The doubled power rating (0.5W) and superior temperature coefficient (±50ppm/°C) provide design margin in thermally demanding environments. The extended operating temperature range to 175°C accommodates high-temperature applications. ROHS3 compliance and REACH unaffected status are maintained. Physical dimensions remain compatible with standard axial resistor footprints.

Frequently Asked Questions (FAQ)

Q: Can RNF14FTD68R1 be used as a direct replacement for PRNF14FTD68R1?

A: Yes. Both parts share identical electrical specifications (68.1 Ohms ±1%, 0.25W, metal film, axial package) and temperature characteristics. The difference is packaging format: Tape & Reel versus Cut Tape. Compatibility depends on assembly equipment compatibility with the Cut Tape format.

Q: What are the advantages of using CMF5568R100FHEB as a substitute?

A: The CMF5568R100FHEB provides three performance enhancements: doubled power rating (0.5W versus 0.25W), improved temperature coefficient (±50ppm/°C versus ±100ppm/°C), and extended operating temperature range (175°C maximum versus 155°C). These characteristics are beneficial in high-power or thermally constrained applications.

Q: Are all substitute parts axial configuration?

A: Yes. All listed substitutes maintain axial through-hole configuration, ensuring compatibility with existing PCB layouts and assembly processes designed for axial resistors.

Q: Do substitute parts maintain regulatory compliance?

A: Yes. All substitute parts listed are ROHS3 compliant and REACH unaffected, matching the regulatory status of the main part number PRNF14FTD68R1.

Q: What is the primary difference between direct and upgrade substitutes?

A: Direct substitutes (RNF14FTD68R1) maintain identical electrical and thermal specifications with only packaging format differences. Upgrade substitutes (CMF5568R100FHEB) provide enhanced performance characteristics including higher power rating and improved temperature stability, suitable for applications requiring additional design margin.