RNF12FTC107K Equivalent & Substitute Parts

Part Overview

The RNF12FTC107K is a 107 kOhms ±1% 0.5W through-hole axial resistor manufactured by Stackpole Electronics Inc. This metal film resistor features flame retardant coating and safety construction, designed for applications requiring precision resistance values in compact axial packages. The part is currently active in production with ROHS3 compliance. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the allowed parameter range.

Substiute Parts

RNF12FTC107K

Stackpole Electronics IncIn Stock: 1097RNF12FTC107K Datasheet

Current PartRFQ

CMF55107K00FHEB

Vishay DaleIn Stock: 1838CMF55107K00FHEB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RNF12FTC107K is determined by strict equivalence across the following critical parameters:

• Resistance value: 107 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)
• Compliance: ROHS3 Compliant (minimum requirement)

The CMF55107K00FHEB from Vishay Dale meets all substitution criteria. Both parts share identical electrical specifications and axial package configuration, enabling direct functional replacement in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Both the RNF12FTC107K and CMF55107K00FHEB are active production parts with ROHS3 compliance and REACH unaffected status. Selection between these parts is based on application-specific requirements:

The RNF12FTC107K operates within -55°C to 155°C, while the CMF55107K00FHEB extends to -55°C to 175°C. The Vishay Dale part includes moisture resistant features in addition to flame retardant coating. Physical dimensions differ, with the CMF55 series offering a more compact profile (0.090" diameter vs. 0.108" diameter). Both parts maintain identical electrical performance across resistance, tolerance, power rating, and temperature coefficient specifications.

Frequently Asked Questions (FAQ)

Q: Can CMF55107K00FHEB replace RNF12FTC107K in all applications?

A: Yes, provided the physical dimensions of the CMF55 series (0.090" Dia x 0.240" L) fit within the available board space. The CMF55107K00FHEB delivers identical electrical performance and exceeds the operating temperature range of the original part.

Q: What are the key differences between these two 107 kOhm resistors?

A: The primary differences are physical size and maximum operating temperature. The CMF55107K00FHEB is more compact and rated to 175°C versus 155°C for the RNF12FTC107K. The Vishay Dale part includes moisture resistant features. Electrical specifications remain identical.

Q: Are both parts suitable for high-reliability applications?

A: Both parts are ROHS3 compliant, feature flame retardant coating, and carry safety construction. Both are active production parts with established supply chains. Selection depends on specific environmental and thermal requirements of the application.

Q: What is the significance of the axial package type?

A: The axial package indicates through-hole leads extending from opposite ends of the resistor body. This configuration is standard for both parts and ensures mechanical and electrical compatibility in applications designed for axial component mounting.

Q: How do packaging formats (Tape & Reel vs. Cut Tape) affect substitution?

A: Packaging format affects supply and handling but does not impact electrical or mechanical compatibility. The RNF12FTC107K is supplied in Tape & Reel format, while the CMF55107K00FHEB is supplied in Cut Tape format. Both can be used interchangeably in circuit applications.