RNF14FTC41R2 Equivalent & Substitute Parts

Part Overview

The RNF14FTC41R2 is a 41.2 Ohms ±1% metal film axial through-hole resistor rated at 0.25W (1/4W) manufactured by Stackpole Electronics Inc. This component features flame retardant coating and safety-grade construction, designed for applications requiring precision resistance in compact form factors. The part maintains Active product status with 803 units in current inventory. Substitute parts are identified to address availability constraints, extended operating temperature requirements, or higher power dissipation needs while maintaining electrical and mechanical compatibility.

Substiute Parts

RNF14FTC41R2

Stackpole Electronics IncIn Stock: 816RNF14FTC41R2 Datasheet

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CMF5541R200FHEB

Vishay DaleIn Stock: 1807CMF5541R200FHEB Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RNF14FTC41R2 is determined by the following critical parameters:

• Resistance value: 41.2 Ohms (exact match required)
• Tolerance: ±1% (exact match required)
• Composition: Metal Film (exact match required)
• Temperature Coefficient: ±50ppm/°C (exact match required)
• Package Type: Axial (exact match required)
• Number of Terminations: 2 (exact match required)

Parameters that may differ in substitute parts:

• Power Rating: May be equal or higher
• Operating Temperature Range: May be extended
• Physical dimensions: May vary within axial package constraints
• Features: May include additional properties (e.g., moisture resistance)
• Packaging format: May differ (Tape & Reel vs. Cut Tape)

The CMF5541R200FHEB qualifies as a substitute because it maintains all critical electrical parameters while offering enhanced power rating (0.5W vs. 0.25W) and extended maximum operating temperature (175°C vs. 155°C).

Parameter Comparison

Engineering Selection Recommendations

Both the RNF14FTC41R2 and CMF5541R200FHEB maintain ROHS3 compliance and REACH unaffected status, meeting regulatory requirements for industrial and commercial applications. The CMF5541R200FHEB provides a higher power dissipation capability (0.5W vs. 0.25W) and extended maximum operating temperature (175°C vs. 155°C), making it suitable for applications with elevated thermal environments or higher current loads. Physical dimensions are comparable within axial package tolerances. Selection between these parts depends on circuit power requirements and thermal operating conditions rather than electrical performance, as both maintain identical resistance, tolerance, and temperature coefficient specifications.

Frequently Asked Questions (FAQ)

Q: Can CMF5541R200FHEB replace RNF14FTC41R2 in all applications?

A: Yes, provided the circuit design accommodates the substitute's physical dimensions (0.090" Dia x 0.240" L vs. 0.093" Dia x 0.250" L). The higher power rating and extended temperature range of the CMF5541R200FHEB make it compatible with all applications designed for the RNF14FTC41R2.

Q: What is the significance of the ±50ppm/°C temperature coefficient?

A: This parameter defines the resistance change per degree Celsius across the operating temperature range. Both parts maintain identical temperature coefficient, ensuring equivalent stability and predictability in temperature-sensitive circuits.

Q: Are there packaging differences between these parts?

A: Yes. The RNF14FTC41R2 is supplied in Tape & Reel (TR) format, while the CMF5541R200FHEB is supplied in Cut Tape (CT) format. Both are axial through-hole components suitable for automated or manual assembly.

Q: Why does the substitute have a higher power rating?

A: The CMF5541R200FHEB is rated at 0.5W (1/2W) compared to the RNF14FTC41R2 at 0.25W (1/4W). This higher rating allows the substitute to dissipate more heat without exceeding maximum junction temperature, providing design margin in power-sensitive applications.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the RNF14FTC41R2 and CMF5541R200FHEB are ROHS3 compliant and REACH unaffected, meeting equivalent regulatory requirements for industrial and consumer electronics applications.