RNF12FTC110K Equivalent & Substitute Parts

Part Overview

The RNF12FTC110K is a 110 kOhms ±1% metal film through-hole resistor rated at 0.5W (1/2W) in axial package configuration, manufactured by Stackpole Electronics Inc. This component features flame retardant coating and safety-rated construction suitable for general-purpose electronic applications requiring precision resistance values. The part maintains Active product status with 816 units in current inventory. Substitute parts are identified when equivalent electrical specifications, mechanical compatibility, and regulatory compliance can be maintained across alternative manufacturers.

Substiute Parts

RNF12FTC110K

Stackpole Electronics IncIn Stock: 848RNF12FTC110K Datasheet

Current PartRFQ

CMF55110K00FHEB

Vishay DaleIn Stock: 4478CMF55110K00FHEB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RNF12FTC110K is determined by the following critical parameters:

• Resistance value: 110 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.5W / 1/2W (exact match required)
• Composition: Metal Film (exact match required)
• Package: Axial through-hole (exact match required)
• Temperature coefficient: ±50ppm/°C (exact match required)
• Regulatory compliance: ROHS3 Compliant, REACH Unaffected (minimum requirement)

The CMF55110K00FHEB from Vishay Dale meets all mandatory electrical and mechanical parameters. Both parts share identical resistance, tolerance, power rating, composition, and temperature coefficient specifications. Both maintain ROHS3 compliance and REACH unaffected status. Physical package compatibility is maintained through axial configuration, though dimensional differences exist due to manufacturing design variations.

Parameter Comparison

Engineering Selection Recommendations

The CMF55110K00FHEB qualifies as a direct substitute for the RNF12FTC110K based on matching electrical specifications and regulatory compliance. Both components are Active products with ROHS3 compliance and REACH unaffected status, ensuring continued availability and regulatory acceptance in current applications.

The CMF55110K00FHEB provides an extended operating temperature range (-55°C ~ 175°C versus -55°C ~ 155°C), offering additional thermal margin in high-temperature environments. The Vishay Dale component includes moisture-resistant features beyond the base flame retardant coating of the Stackpole part, providing enhanced environmental protection in applications subject to humidity exposure.

Physical dimensions differ between the two axial packages (RNF12FTC110K: 0.108" Dia x 0.344" L; CMF55110K00FHEB: 0.090" Dia x 0.240" L). PCB layout verification is necessary to confirm mechanical fit within existing board designs, particularly in space-constrained applications.

Frequently Asked Questions (FAQ)

Q: Can the CMF55110K00FHEB replace the RNF12FTC110K in existing designs?

A: Yes, provided PCB layout accommodates the dimensional differences. The CMF55110K00FHEB is 0.018" smaller in diameter and 0.104" shorter in length. Electrical performance is equivalent across all specified parameters.

Q: Are there differences in packaging format between these parts?

A: The RNF12FTC110K is supplied in Tape & Reel (TR) format, while the CMF55110K00FHEB is supplied in Cut Tape (CT) format. Both are suitable for automated assembly processes, though tape configuration may affect handling and feeder compatibility.

Q: What is the significance of the extended temperature range in the CMF55110K00FHEB?

A: The CMF55110K00FHEB operates to 175°C versus 155°C for the RNF12FTC110K. This extended range provides additional thermal headroom in applications approaching the upper temperature limit of the original part.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both components are ROHS3 compliant and REACH unaffected, meeting current regulatory standards for electronic component use in restricted substance directives.

Q: What does "moisture resistant" mean for the CMF55110K00FHEB?

A: The CMF55110K00FHEB includes moisture-resistant coating in addition to flame retardant properties. This provides enhanced protection in humid or condensing environments compared to the base flame retardant coating of the RNF12FTC110K.