RNF14FAD1M10 Equivalent & Substitute Parts

Part Overview

The RNF14FAD1M10 is a 1.1 MOhms ±1% metal film axial resistor rated at 0.25W (1/4W) manufactured by Stackpole Electronics Inc. This through-hole component features flame retardant coating and safety construction, designed for applications requiring precision resistance in compact form factors. The part maintains Active product status with 946 units in current inventory. Substitute parts are identified to address availability constraints or application-specific requirements while maintaining electrical and mechanical compatibility within defined parameter tolerances.

Substiute Parts

RNF14FAD1M10

Stackpole Electronics IncIn Stock: 1016RNF14FAD1M10 Datasheet

Current PartRFQ

CMF551M1000FHEB

Vishay DaleIn Stock: 1325CMF551M1000FHEB Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RNF14FAD1M10 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 1.1 MOhms
• Tolerance: ±1%
• Composition: Metal Film
• Package: Axial through-hole
• Compliance: ROHS3 Compliant

Allowable Variation Parameters:

• Power rating: Equal to or greater than 0.25W
• Temperature coefficient: Equal to or lower absolute value
• Operating temperature range: Equal to or exceeding -55°C to 155°C
• Physical dimensions: Axial package compatibility

The CMF551M1000FHEB qualifies as a substitute based on matching all mandatory parameters while providing enhanced specifications in power rating (0.5W vs. 0.25W), temperature coefficient (±50ppm/°C vs. ±100ppm/°C), and operating temperature range (-55°C to 175°C vs. -55°C to 155°C).

Parameter Comparison

Engineering Selection Recommendations

Both the RNF14FAD1M10 and CMF551M1000FHEB maintain Active product status and ROHS3 compliance. The CMF551M1000FHEB provides enhanced thermal performance through a lower temperature coefficient (±50ppm/°C) and extended operating temperature range to 175°C, making it suitable for applications with elevated ambient conditions. The increased power rating (0.5W) provides additional thermal margin in high-dissipation circuits. Physical dimensions are comparable within axial package standards. Selection between these parts should be based on thermal environment requirements and available inventory status.

Frequently Asked Questions (FAQ)

Q: Can the CMF551M1000FHEB replace the RNF14FAD1M10 in all applications?

A: Yes, provided the circuit design does not depend on the specific physical dimensions or the lower temperature coefficient of the RNF14FAD1M10. The CMF551M1000FHEB's enhanced specifications (higher power rating, lower temperature coefficient, extended temperature range) make it compatible with all applications designed for the RNF14FAD1M10.

Q: What is the significance of the temperature coefficient difference?

A: The CMF551M1000FHEB's ±50ppm/°C coefficient versus the RNF14FAD1M10's ±100ppm/°C means the substitute exhibits half the resistance drift per degree Celsius. This provides superior stability in temperature-sensitive precision circuits.

Q: Are the physical dimensions interchangeable?

A: Both parts use axial through-hole packaging with comparable dimensions (0.093" vs. 0.090" diameter; 0.250" vs. 0.240" length). They are mechanically compatible in standard PCB layouts designed for axial resistors.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the RNF14FAD1M10 and CMF551M1000FHEB are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99.