RNF18FTC110K Equivalent & Substitute Parts

Part Overview

The RNF18FTC110K is a 110 kOhms ±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-rated construction suitable for industrial and consumer applications. The part maintains active product status with ROHS3 compliance and is currently in stock with 891 units available.

Substitute parts are identified when equivalent electrical performance can be maintained within the specified tolerance and operating parameters while accommodating different power ratings or packaging formats that may be required for specific application requirements.

Substiute Parts

RNF18FTC110K

Stackpole Electronics IncIn Stock: 932RNF18FTC110K Datasheet

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RNMF14FTC110K

Stackpole Electronics IncIn Stock: 17738RNMF14FTC110K Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The RNMF14FTC110K qualifies as a substitute for the RNF18FTC110K based on the following criteria:

Matching Parameters:

• Resistance value: 110 kOhms
• Tolerance: ±1%
• Composition: Metal Film
• Temperature Coefficient: ±50ppm/°C
• Operating Temperature Range: -55°C to 155°C
• Package Type: Axial
• Features: Flame Retardant Coating, Safety
• RoHS Status: ROHS3 Compliant
• Manufacturer: Stackpole Electronics Inc

Differing Parameters:

• Power Rating: 0.25W (1/4W) versus 0.125W (1/8W)
• Physical Dimensions: 0.070" Dia x 0.130" L versus 0.071" Dia x 0.130" L
• Packaging Format: Cut Tape (CT) versus Tape & Reel (TR)
• Series Designation: RNMF (Mini) versus RNF

The substitute part provides higher power dissipation capability while maintaining identical electrical characteristics and environmental specifications.

Parameter Comparison

Engineering Selection Recommendations

Both the RNF18FTC110K and RNMF14FTC110K maintain active product status with full ROHS3 compliance and REACH unaffected designation. Selection between these parts is determined by application power dissipation requirements and packaging logistics.

The RNF18FTC110K is appropriate for applications with power dissipation not exceeding 0.125W at the specified resistance value. The RNMF14FTC110K provides increased power handling capacity at 0.25W, suitable for applications requiring higher thermal margin or operating at elevated ambient temperatures within the specified range.

Physical dimensions are functionally equivalent for standard through-hole PCB layouts. Packaging format differences (Tape & Reel versus Cut Tape) reflect supply chain and assembly process considerations rather than functional performance variations.

Frequently Asked Questions (FAQ)

Q: Can RNMF14FTC110K replace RNF18FTC110K in all applications?

A: The RNMF14FTC110K provides identical electrical characteristics and environmental specifications. Substitution is valid when PCB layout accommodates the minor dimensional variation (0.070" versus 0.071" diameter) and when the higher power rating does not create thermal or space constraints.

Q: What is the primary difference between these two resistors?

A: The primary difference is power rating. The RNMF14FTC110K is rated at 0.25W (1/4W) compared to the RNF18FTC110K at 0.125W (1/8W). Both maintain identical resistance, tolerance, temperature coefficient, and operating temperature specifications.

Q: Are there packaging considerations for substitution?

A: The RNF18FTC110K is supplied in Tape & Reel format while the RNMF14FTC110K is supplied in Cut Tape format. This affects procurement and assembly processes but does not impact component performance or PCB compatibility.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the RNF18FTC110K and RNMF14FTC110K are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with identical HTSUS coding (8533.21.0090).

Q: What determines whether I should use the higher power-rated substitute?

A: Use the RNMF14FTC110K when application power dissipation approaches or exceeds 0.1W, when operating at elevated ambient temperatures, or when design margin for thermal performance is required. Use the RNF18FTC110K when space constraints or cost optimization for lower power applications is the priority.