RNF14FAC825R Equivalent & Substitute Parts

Part Overview

The RNF14FAC825R is a 825 Ohm ±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 ROHS3 compliance. Substitute parts are identified when equivalent electrical specifications, mechanical compatibility, and regulatory certifications align with the original design requirements.

Substiute Parts

RNF14FAC825R

Stackpole Electronics IncIn Stock: 974RNF14FAC825R Datasheet

Current PartRFQ

CMF50825R00FHEB

Vishay DaleIn Stock: 1499CMF50825R00FHEB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RNF14FAC825R is determined by the following criteria:

• Resistance value: 825 Ohms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.25W / 1/4W (exact match required)
• Composition: Metal Film (exact match required)
• Package: Axial through-hole (exact match required)
• Temperature coefficient: ±50ppm/°C (exact match required)
• Regulatory compliance: ROHS3 Compliant (minimum requirement)

The CMF50825R00FHEB from Vishay Dale meets all electrical and mechanical substitution criteria. Both components share identical resistance, tolerance, power rating, composition, and temperature coefficient specifications. Both are ROHS3 compliant and feature flame retardant coatings with safety ratings.

Parameter Comparison

Engineering Selection Recommendations

The CMF50825R00FHEB qualifies as a direct substitute for the RNF14FAC825R based on matching electrical specifications and regulatory compliance. Both components are Active product status with ROHS3 certification and REACH compliance. The CMF50825R00FHEB provides an extended operating temperature range (-55°C ~ 175°C versus -55°C ~ 155°C) and includes moisture-resistant features, representing equivalent or enhanced performance characteristics. Physical dimensions differ between the two axial packages; PCB layout and mechanical clearance must be verified during integration.

Frequently Asked Questions (FAQ)

Q: Can CMF50825R00FHEB replace RNF14FAC825R in all applications?

A: Yes, provided that the physical dimensions of the CMF50825R00FHEB (0.065" Dia x 0.150" L) fit within the available PCB space designed for the RNF14FAC825R (0.093" Dia x 0.250" L). Electrical performance is equivalent across all specified parameters.

Q: What are the key differences between these two resistors?

A: The primary differences are physical size and operating temperature range. The CMF50825R00FHEB is smaller and rated to 175°C versus 155°C for the RNF14FAC825R. The CMF50825R00FHEB includes moisture-resistant features. Electrical specifications are identical.

Q: Are both parts ROHS3 compliant?

A: Yes, both RNF14FAC825R and CMF50825R00FHEB are ROHS3 compliant and REACH unaffected.

Q: Does the difference in packaging (Tape & Box versus Cut Tape) affect substitution?

A: Packaging format affects procurement and handling but does not impact electrical or mechanical compatibility. Both components are suitable for automated assembly processes.

Q: What is the tolerance specification and why does it matter?

A: Both resistors are rated at ±1% tolerance, meaning the actual resistance value will fall within 816.75 Ohms to 833.25 Ohms. This tight tolerance is critical for precision circuit applications and is maintained across both substitute options.