RNF14FTD36R5 Equivalent & Substitute Parts

Part Overview

The RNF14FTD36R5 is a 36.5 Ohm ±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 976 units in current inventory. Substitute parts are identified to address availability, performance upgrades, or specific application requirements while maintaining electrical and mechanical compatibility within defined parameters.

Substiute Parts

RNF14FTD36R5

Stackpole Electronics IncIn Stock: 1026RNF14FTD36R5 Datasheet

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CMF5536R500FHEB

Vishay DaleIn Stock: 6490CMF5536R500FHEB Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RNF14FTD36R5 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 36.5 Ohms
• Tolerance: ±1%
• Composition: Metal Film
• Package: Axial through-hole configuration
• Regulatory compliance: ROHS3 Compliant, REACH Unaffected

Allowable Variation Parameters:

• Power rating: Equal or greater than 0.25W
• Temperature coefficient: Equal or lower absolute value
• Operating temperature range: Equal or wider range
• Physical dimensions: Minor variations acceptable within axial package constraints
• Packaging format: Tape & Reel (TR) or Cut Tape (CT) formats are interchangeable for component selection

The CMF5536R500FHEB qualifies as a substitute based on matching all mandatory parameters while providing enhanced performance characteristics in power rating and temperature stability.

Parameter Comparison

Engineering Selection Recommendations

The CMF5536R500FHEB substitute part is electrically and mechanically compatible with the RNF14FTD36R5 for applications requiring 36.5 Ohm ±1% metal film axial resistors. Both components maintain ROHS3 compliance and REACH Unaffected status, satisfying regulatory requirements for equivalent component selection.

The substitute provides performance enhancements including doubled power dissipation capacity (0.5W versus 0.25W), improved temperature coefficient stability (±50ppm/°C versus ±100ppm/°C), and extended operating temperature range (-55°C to 175°C versus -55°C to 155°C). Physical dimensions remain within acceptable tolerances for standard axial through-hole PCB layouts. The addition of moisture-resistant properties in the substitute part offers enhanced environmental protection without compromising electrical characteristics.

Selection between these components should be based on application power dissipation requirements, thermal environment specifications, and packaging format availability (Tape & Reel versus Cut Tape).

Frequently Asked Questions (FAQ)

Q: Can the CMF5536R500FHEB directly replace the RNF14FTD36R5 in existing designs?

A: Yes. Both components share identical resistance (36.5 Ohms), tolerance (±1%), composition (metal film), and axial package configuration. The substitute meets or exceeds all electrical and mechanical parameters required for direct substitution in PCB layouts designed for the original part.

Q: What is the significance of the power rating difference (0.25W versus 0.5W)?

A: The substitute part has double the power dissipation capacity. This allows operation in higher current or higher ambient temperature environments without thermal stress. In applications where the original 0.25W rating is sufficient, the 0.5W substitute operates with additional thermal margin.

Q: How do temperature coefficient values affect component selection?

A: Temperature coefficient (±100ppm/°C versus ±50ppm/°C) indicates resistance value drift across temperature extremes. The substitute's lower coefficient (±50ppm/°C) provides superior stability, resulting in more consistent resistance values across the -55°C to 175°C operating range. This is advantageous for precision circuits sensitive to resistance variation.

Q: Are there physical installation differences between these axial components?

A: Physical dimensions are nearly identical (0.093" versus 0.090" diameter; 0.250" versus 0.240" length). These minor variations fall within standard PCB hole tolerances and do not require layout modifications. Both components use standard axial lead spacing for through-hole mounting.

Q: What packaging formats are available for these parts?

A: The RNF14FTD36R5 is supplied in Tape & Reel (TR) format. The CMF5536R500FHEB is supplied in Cut Tape (CT) format. Both formats contain identical components and are suitable for manual or automated assembly processes. Format selection depends on production volume and assembly equipment compatibility.

Q: Do both parts meet the same regulatory compliance standards?

A: Yes. Both the RNF14FTD36R5 and CMF5536R500FHEB are ROHS3 Compliant and REACH Unaffected, satisfying equivalent regulatory requirements for electronic component use in regulated industries and markets.