PRNF14FTD1K27 Equivalent & Substitute Parts

Part Overview

The PRNF14FTD1K27 is a 1.27 kOhm ±1% metal film through-hole resistor rated at 0.25W (1/4W) in axial package configuration, manufactured by Stackpole Electronics Inc. This component is classified as Active product status with flame retardant coating and safety features. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained within the allowed parameter tolerances for this resistor category.

Substiute Parts

PRNF14FTD1K27

Stackpole Electronics IncIn Stock: 1079PRNF14FTD1K27 Datasheet

Current PartRFQ

RNF14FTD1K27

Stackpole Electronics IncIn Stock: 15134RNF14FTD1K27 Datasheet

DirectRFQ

CMF551K2700FHEB

Vishay DaleIn Stock: 1803CMF551K2700FHEB Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PRNF14FTD1K27 are classified based on the following criteria:

Direct Equivalent (Same Packaging): RNF14FTD1K27 maintains identical electrical specifications and axial package configuration. The only difference is packaging format (Cut Tape vs. Tape & Reel), which does not affect component functionality or board-level compatibility.

Upgrade Substitute (Enhanced Specifications): CMF551K2700FHEB from Vishay Dale provides the same resistance value and tolerance with enhanced power rating (0.5W vs. 0.25W), improved temperature coefficient (±50ppm/°C vs. ±100ppm/°C), extended operating temperature range (-55°C ~ 175°C vs. -55°C ~ 155°C), and moisture-resistant features. This component is mechanically compatible in axial configuration and maintains ROHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement: RNF14FTD1K27 is suitable when packaging format change from Tape & Reel to Cut Tape is acceptable. Both components maintain identical electrical performance and compliance certifications.

For Enhanced Performance Applications: CMF551K2700FHEB is applicable when circuit design permits higher power dissipation capability, requires improved temperature stability, or operates in extended temperature environments. The upgrade substitute maintains mechanical compatibility and regulatory compliance while providing superior thermal and environmental performance characteristics.

All substitute parts maintain ROHS3 compliance and REACH Unaffected status, ensuring regulatory compatibility with the original component specification.

Frequently Asked Questions (FAQ)

Q: Can RNF14FTD1K27 be used as a direct replacement for PRNF14FTD1K27?

A: Yes. Both components share identical electrical specifications (1.27 kOhms ±1%, 0.25W, metal film composition) and axial package configuration. The difference in packaging format (Cut Tape vs. Tape & Reel) does not affect component functionality or board-level performance.

Q: What are the advantages of using CMF551K2700FHEB as a substitute?

A: CMF551K2700FHEB provides doubled power rating (0.5W vs. 0.25W), improved temperature coefficient (±50ppm/°C vs. ±100ppm/°C), extended operating temperature range (-55°C ~ 175°C vs. -55°C ~ 155°C), and moisture-resistant features. These enhancements are beneficial in high-dissipation or thermally demanding applications.

Q: Are all substitute parts mechanically compatible with the original design?

A: Yes. All substitute parts use axial package configuration with two terminations, maintaining mechanical compatibility with through-hole PCB layouts designed for the PRNF14FTD1K27.

Q: Do substitute parts maintain regulatory compliance?

A: Yes. Both RNF14FTD1K27 and CMF551K2700FHEB are ROHS3 compliant and REACH Unaffected, matching the regulatory status of the original component.

Q: When should CMF551K2700FHEB be selected over the direct equivalent?

A: Select CMF551K2700FHEB when circuit analysis indicates power dissipation approaching or exceeding 0.25W, when temperature stability is critical, or when operating temperature may exceed 155°C.