PRNF14FTD1K65 Equivalent & Substitute Parts

Part Overview

The PRNF14FTD1K65 is a 1.65 kOhms ±1% 0.25W through hole resistor manufactured by Stackpole Electronics Inc in the RNF series. This metal film axial resistor features flame retardant coating and safety characteristics, designed for applications requiring precision resistance values with tight tolerance specifications. The part is currently active in production and ROHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter ranges.

Substiute Parts

PRNF14FTD1K65

Stackpole Electronics IncIn Stock: 738PRNF14FTD1K65 Datasheet

Current PartRFQ

RNF14FTD1K65

Stackpole Electronics IncIn Stock: 29668RNF14FTD1K65 Datasheet

DirectRFQ

CMF551K6500FHEB

Vishay DaleIn Stock: 1431CMF551K6500FHEB Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PRNF14FTD1K65 is determined by the following critical parameters:

Direct Equivalent Criteria:

• Resistance value: 1.65 kOhms
• Tolerance: ±1%
• Composition: Metal Film
• Package: Axial configuration
• Compliance: ROHS3 Compliant

Upgrade Criteria:

• Same resistance and tolerance values
• Higher power rating (0.5W minimum)
• Improved temperature coefficient performance
• Extended operating temperature range
• Maintained axial package compatibility
• ROHS3 Compliant

The RNF14FTD1K65 (Cut Tape packaging variant) qualifies as a direct equivalent with identical electrical specifications and axial package configuration. The CMF551K6500FHEB qualifies as an upgrade substitute with enhanced power handling capability (0.5W vs 0.25W) and superior temperature stability (±50ppm/°C vs ±100ppm/°C).

Parameter Comparison

Engineering Selection Recommendations

Direct Substitution (RNF14FTD1K65): Select this part when packaging format change from Tape & Reel to Cut Tape is acceptable. Electrical and thermal performance are identical to the main part. Both parts maintain ROHS3 compliance and equivalent reliability characteristics.

Upgrade Substitution (CMF551K6500FHEB): Select this part when applications require enhanced power dissipation capability or improved temperature stability. The 0.5W power rating provides margin above the 0.25W specification. The ±50ppm/°C temperature coefficient offers superior frequency stability compared to ±100ppm/°C. Extended operating temperature range to 175°C accommodates higher ambient conditions. Moisture resistant coating provides additional environmental protection. All compliance certifications remain equivalent.

Frequently Asked Questions (FAQ)

Q: Can RNF14FTD1K65 replace PRNF14FTD1K65 in all applications? A: Yes, provided packaging format compatibility is confirmed. Both parts share identical electrical specifications, tolerance, composition, and thermal characteristics. The difference is packaging format: Tape & Reel versus Cut Tape.

Q: What are the advantages of using CMF551K6500FHEB as a substitute? A: The CMF551K6500FHEB provides doubled power rating (0.5W vs 0.25W), superior temperature coefficient (±50ppm/°C vs ±100ppm/°C), extended operating temperature range (175°C vs 155°C maximum), and moisture resistant coating. These enhancements are beneficial in high-dissipation or thermally demanding applications.

Q: Are all substitute parts ROHS3 compliant? A: Yes. Both RNF14FTD1K65 and CMF551K6500FHEB maintain ROHS3 compliance equivalent to the main part PRNF14FTD1K65.

Q: Does the axial package remain consistent across all parts? A: Yes. All three parts use axial package configuration. Physical dimensions vary slightly: PRNF14FTD1K65 and RNF14FTD1K65 are 0.093" Dia x 0.250" L, while CMF551K6500FHEB is 0.090" Dia x 0.240" L. Both dimensions are compatible with standard axial component mounting.

Q: What is the temperature coefficient difference and when does it matter? A: PRNF14FTD1K65 and RNF14FTD1K65 have ±100ppm/°C; CMF551K6500FHEB has ±50ppm/°C. Lower temperature coefficient indicates better resistance stability across temperature variations. This becomes critical in precision measurement circuits, oscillators, and temperature-sensitive analog applications.