RNF14FTD412R Equivalent & Substitute Parts

Part Overview

The RNF14FTD412R is a 412 Ohms ±1% 0.25W (1/4W) through-hole resistor manufactured by Stackpole Electronics Inc. This axial metal film resistor features flame retardant coating and safety construction, designed for general-purpose electronic applications requiring precision resistance values. The part maintains Active product status with 780 units in current inventory. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility allow direct replacement in circuit designs.

Substiute Parts

RNF14FTD412R

Stackpole Electronics IncIn Stock: 873RNF14FTD412R Datasheet

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CMF55412R00FHEB

Vishay DaleIn Stock: 4390CMF55412R00FHEB Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RNF14FTD412R is determined by the following criteria:

Critical Parameters for Substitution:

• Resistance value must be 412 Ohms
• Tolerance must be ±1% or tighter
• Composition must be Metal Film
• Package must be Axial configuration
• RoHS3 compliance required

Allowable Variations:

• Power rating may be equal or higher (0.25W or greater)
• Operating temperature range may be equal or extended
• Temperature coefficient may be equal or lower (tighter specification)
• Physical dimensions may vary within axial package constraints
• Packaging format (Tape & Reel vs. Cut Tape) does not affect electrical substitution

The CMF55412R00FHEB qualifies as a substitute because it maintains the core electrical specifications (412 Ohms, ±1%, Metal Film, Axial) while offering enhanced performance characteristics including higher power rating (0.5W) and extended temperature range (-55°C to 175°C).

Parameter Comparison

Engineering Selection Recommendations

Both the RNF14FTD412R and CMF55412R00FHEB maintain Active product status and full ROHS3 compliance. The CMF55412R00FHEB offers performance advantages including doubled power dissipation capacity (0.5W vs. 0.25W), improved temperature stability (±50ppm/°C vs. ±100ppm/°C), and extended maximum operating temperature (175°C vs. 155°C). Selection between these parts should be based on circuit power dissipation requirements and thermal operating conditions. Both parts are suitable for applications requiring precision 412 Ohm metal film resistors with axial configuration and ±1% tolerance.

Frequently Asked Questions (FAQ)

Q: Can CMF55412R00FHEB replace RNF14FTD412R in all applications?

A: Yes, provided the circuit board layout accommodates the physical dimensions. The CMF55412R00FHEB has slightly smaller dimensions (0.090" Dia x 0.240" L vs. 0.093" Dia x 0.250" L) and higher power rating, making it suitable for direct substitution in standard axial resistor footprints.

Q: What is the significance of the higher power rating in the substitute part?

A: The CMF55412R00FHEB's 0.5W rating provides greater thermal margin in circuits where the RNF14FTD412R's 0.25W rating approaches its dissipation limit. This reduces thermal stress and extends component life in power-sensitive applications.

Q: Are there packaging differences between these parts?

A: The RNF14FTD412R is supplied in Tape & Reel (TR) format, while the CMF55412R00FHEB is supplied in Cut Tape (CT) format. Both are standard packaging methods for axial resistors and do not affect electrical performance or circuit compatibility.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the RNF14FTD412R and CMF55412R00FHEB are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic components.

Q: What does the temperature coefficient difference mean for circuit performance?

A: The CMF55412R00FHEB's ±50ppm/°C coefficient is tighter than the RNF14FTD412R's ±100ppm/°C, meaning resistance value changes less with temperature variations. This provides improved circuit stability across the operating temperature range, particularly in precision analog applications.