RNF18FTD220R Equivalent & Substitute Parts

Part Overview

The RNF18FTD220R is a 220 Ohms ±1% metal film through-hole resistor rated at 0.125W (1/8W) in axial package configuration, manufactured by Stackpole Electronics Inc. This component features flame retardant coating and safety construction, with operating temperature range of -55°C to 155°C. The part maintains Active product status with ROHS3 compliance and is currently in stock with 863 units available.

Substitute parts are identified when equivalent electrical specifications and mechanical compatibility allow direct replacement in circuit applications, particularly when higher power ratings or improved performance characteristics are required.

Substiute Parts

RNF18FTD220R

Stackpole Electronics IncIn Stock: 884RNF18FTD220R Datasheet

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RNMF14FTC220R

Stackpole Electronics IncIn Stock: 18169RNMF14FTC220R Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The RNMF14FTC220R qualifies as a direct substitute based on the following criteria:

Electrical equivalence is maintained through identical resistance value (220 Ohms) and tolerance specification (±1%). Both components utilize metal film composition with flame retardant coating and safety features, ensuring functional compatibility in circuit design.

Mechanical compatibility is preserved through axial package configuration with matching lead diameter (0.070" to 0.071") and body length (0.130"), allowing physical interchangeability in standard through-hole PCB layouts.

The substitute part provides enhanced performance through increased power rating (0.25W versus 0.125W) and improved temperature coefficient (±50ppm/°C versus ±100ppm/°C), while maintaining identical operating temperature range and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

Both RNF18FTD220R and RNMF14FTC220R maintain Active product status with full ROHS3 and REACH compliance. Selection between these components is determined by circuit power dissipation requirements and thermal stability specifications.

The RNF18FTD220R is appropriate for applications with power dissipation not exceeding 0.125W and where standard temperature coefficient performance is acceptable.

The RNMF14FTC220R is suitable for applications requiring power dissipation up to 0.25W or where improved temperature stability (±50ppm/°C) is specified. The enhanced power rating provides design margin in circuits approaching the thermal limits of the original component.

Both components are suitable for direct substitution in standard through-hole PCB designs without layout modification.

Frequently Asked Questions (FAQ)

Can RNMF14FTC220R replace RNF18FTD220R in all applications?

Yes, the RNMF14FTC220R is electrically and mechanically compatible with RNF18FTD220R. The higher power rating (0.25W versus 0.125W) and improved temperature coefficient (±50ppm/°C versus ±100ppm/°C) make it suitable for direct substitution. Physical dimensions are equivalent, allowing use in existing PCB layouts without modification.

What are the key differences between these two resistors?

The primary differences are power rating and temperature coefficient. RNMF14FTC220R provides double the power rating and superior temperature stability. Both maintain identical resistance value, tolerance, operating temperature range, and compliance certifications.

Are there packaging differences between these parts?

RNF18FTD220R is supplied in Tape & Reel (TR) packaging, while RNMF14FTC220R is supplied in Cut Tape (CT) packaging. Both use axial through-hole configuration with compatible lead dimensions for PCB assembly.

Do both parts meet the same compliance requirements?

Yes, both RNF18FTD220R and RNMF14FTC220R are ROHS3 compliant and REACH unaffected, meeting identical regulatory requirements for electronic component applications.