PRNF14FTD681R Equivalent & Substitute Parts

Part Overview

The PRNF14FTD681R is a 681 Ohm ±1% metal film through-hole resistor rated at 0.25W (1/4W) with axial leads, manufactured by Stackpole Electronics Inc. This component is classified as Active product status and is ROHS3 compliant. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the allowed parameter range for this resistor category.

Substiute Parts

PRNF14FTD681R

Stackpole Electronics IncIn Stock: 907PRNF14FTD681R Datasheet

Current PartRFQ

RNF14FAD681R

Stackpole Electronics IncIn Stock: 969RNF14FAD681R Datasheet

DirectRFQ

RNF14FTD681R

Stackpole Electronics IncIn Stock: 30751RNF14FTD681R Datasheet

DirectRFQ

CMF55681R00BHEB

Vishay DaleIn Stock: 1792CMF55681R00BHEB Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the PRNF14FTD681R is determined by the following criteria:

Direct Substitutes maintain identical electrical specifications: 681 Ohms resistance, ±1% tolerance, 0.25W power rating, metal film composition, and axial package configuration. Packaging format (Tape & Reel, Tape & Box, or Cut Tape) does not affect electrical or mechanical compatibility.

Upgrade Substitutes provide enhanced performance within the same resistance value and axial package type. These parts exceed the minimum specifications of the original component while maintaining mechanical fit and electrical function in the circuit.

The following parameters are held constant across all substitute relationships:

• Resistance value: 681 Ohms
• Package type: Axial through-hole
• Composition: Metal Film
• Lead configuration: 2 terminations
• Compliance: ROHS3, REACH Unaffected, EAR99

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (RNF14FAD681R, RNF14FTD681R): These Stackpole Electronics Inc parts are functionally equivalent to the PRNF14FTD681R. All three components share identical electrical specifications and are Active product status with ROHS3 compliance. Selection between these direct substitutes is determined by packaging format availability and inventory requirements.

Upgrade Substitute (CMF55681R00BHEB): The Vishay Dale CMF55681R00BHEB provides enhanced performance specifications: tighter tolerance (±0.1% versus ±1%), higher power rating (0.5W versus 0.25W), lower temperature coefficient (±50ppm/°C versus ±100ppm/°C), and extended operating temperature range (-55°C ~ 175°C versus -55°C ~ 155°C). This part is suitable for applications requiring improved stability and thermal performance while maintaining the same 681 Ohm resistance value and axial package configuration. All parts maintain ROHS3 compliance and Active product status.

Frequently Asked Questions (FAQ)

Q: Can RNF14FAD681R and RNF14FTD681R be used interchangeably with PRNF14FTD681R?

A: Yes. These parts are direct substitutes with identical electrical specifications (681 Ω, ±1%, 0.25W) and axial package configuration. The difference is packaging format: Tape & Box versus Cut Tape versus Tape & Reel. Electrical and mechanical performance in the circuit are equivalent.

Q: What is the difference between the Stackpole and Vishay Dale options?

A: The CMF55681R00BHEB (Vishay Dale) is an upgrade substitute offering tighter tolerance (±0.1%), higher power rating (0.5W), lower temperature coefficient (±50ppm/°C), and wider operating temperature range (-55°C ~ 175°C). The Stackpole parts maintain the original ±1% tolerance and 0.25W rating. Both are mechanically compatible axial through-hole resistors.

Q: Does packaging format affect circuit performance?

A: No. Tape & Reel (TR), Tape & Box (TB), and Cut Tape (CT) packaging formats do not affect electrical or mechanical performance. Selection is based on assembly process requirements and inventory management.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. PRNF14FTD681R, RNF14FAD681R, RNF14FTD681R, and CMF55681R00BHEB are all ROHS3 compliant and REACH unaffected.

Q: Can the CMF55681R00BHEB be used in applications designed for 0.25W resistors?

A: Yes. The CMF55681R00BHEB has a higher power rating (0.5W) and lower temperature coefficient, making it suitable for circuits designed for the 0.25W PRNF14FTD681R. The higher power rating provides additional thermal margin without affecting circuit function.