PRNF14FTD1R00 Equivalent & Substitute Parts

Part Overview

The PRNF14FTD1R00 is a 1 Ohm ±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 construction, designed for applications requiring precision resistance in compact form factors. The part is currently active in production with ROHS3 compliance and REACH unaffected status. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across alternative packaging formats or upgraded power ratings.

Substiute Parts

PRNF14FTD1R00

Stackpole Electronics IncIn Stock: 864PRNF14FTD1R00 Datasheet

Current PartRFQ

RNF14FTD1R00

Stackpole Electronics IncIn Stock: 24995RNF14FTD1R00 Datasheet

DirectRFQ

CMF551R0000FKEB

Vishay DaleIn Stock: 1242CMF551R0000FKEB Datasheet

UpgradeRFQ

CPF11R0000FKEE6

Vishay DaleIn Stock: 6731CPF11R0000FKEE6 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PRNF14FTD1R00 are classified based on the following substitution criteria:

Direct Equivalent (Same Packaging Format): RNF14FTD1R00 from Stackpole Electronics Inc maintains identical electrical specifications (1 Ohm, ±1%, 0.25W) and mechanical dimensions (0.093" Dia x 0.250" L). The only difference is packaging format (Cut Tape vs. Tape & Reel), which does not affect electrical performance or board-level compatibility.

Upgraded Substitutes (Higher Power Rating): CMF551R0000FKEB and CPF11R0000FKEE6 are classified as upgrades because they maintain the core electrical specifications (1 Ohm, ±1%, metal film, axial package) while providing increased power dissipation capability (0.5W and 1W respectively). These parts are mechanically compatible and can be used in applications where the original 0.25W rating is insufficient, provided board layout accommodates the slightly different physical dimensions.

Substitution logic is based strictly on:

• Identical resistance value (1 Ohm)
• Identical tolerance (±1%)
• Identical composition (Metal Film)
• Identical package type (Axial)
• Identical temperature coefficient (±100ppm/°C)
• Compliance certifications (ROHS3, REACH)

Parameter Comparison

Engineering Selection Recommendations

RNF14FTD1R00 (Direct Equivalent): Select this part when packaging format flexibility is required. It provides identical electrical and thermal performance to the PRNF14FTD1R00 with the same compliance certifications. This option is suitable for applications where Cut Tape packaging is preferred over Tape & Reel.

CMF551R0000FKEB (Upgrade - 0.5W): Select this part when circuit design requires increased power dissipation margin beyond the original 0.25W specification. The upgraded power rating provides additional thermal headroom while maintaining all core electrical parameters. Operating temperature range extends to 175°C, supporting higher ambient conditions. Mechanical dimensions are slightly reduced, which may improve board layout efficiency.

CPF11R0000FKEE6 (Upgrade - 1W): Select this part for applications demanding maximum power dissipation capability or extended operating temperature range (-65°C ~ 230°C). This option provides the highest thermal margin and widest temperature specification among all substitutes. Flame proof construction offers enhanced safety characteristics compared to flame retardant alternatives.

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

Frequently Asked Questions (FAQ)

Q: Can RNF14FTD1R00 be used as a direct replacement for PRNF14FTD1R00?

A: Yes. Both parts are manufactured by Stackpole Electronics Inc with identical electrical specifications (1 Ohm, ±1%, 0.25W, metal film, axial package). The only difference is packaging format (Cut Tape vs. Tape & Reel), which does not affect electrical performance or board-level compatibility.

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

A: The direct equivalent (RNF14FTD1R00) maintains the same 0.25W power rating as the original part. Upgrade substitutes (CMF551R0000FKEB at 0.5W and CPF11R0000FKEE6 at 1W) provide higher power dissipation capability. All maintain identical resistance, tolerance, and composition specifications.

Q: Are the physical dimensions of upgrade substitutes compatible with the original PCB layout?

A: Upgrade substitutes have slightly reduced dimensions (0.090" Dia x 0.240" L vs. 0.093" Dia x 0.250" L). These dimensional differences are minor and typically do not cause board-level compatibility issues. However, verify specific board layout constraints before substitution.

Q: Do all substitute parts meet the same compliance requirements?

A: Yes. All substitute parts listed are ROHS3 compliant and REACH unaffected, matching the original PRNF14FTD1R00 specification.

Q: Which substitute should be selected for high-temperature applications?

A: CPF11R0000FKEE6 provides the widest operating temperature range (-65°C ~ 230°C) and is suitable for high-temperature environments. CMF551R0000FKEB extends to 175°C, while the original part operates to 155°C.

Q: Can upgrade substitutes be used in all applications designed for the original 0.25W part?

A: Yes. Higher power-rated components can be used in applications designed for lower power ratings without electrical performance degradation. The upgrade substitutes maintain all core electrical parameters (resistance, tolerance, temperature coefficient) and are mechanically compatible.