RNF14FAC110K Equivalent & Substitute Parts

Part Overview

The RNF14FAC110K is a 110 kOhms ±1% 0.25W (1/4W) through-hole resistor manufactured by Stackpole Electronics Inc. This axial metal film resistor features flame retardant coating and safety construction, designed for general-purpose electronic applications requiring precision resistance values. The part is active in production with ROHS3 compliance and is available in Tape & Box packaging. Substitute parts are identified to address packaging availability, inventory levels, and performance envelope requirements while maintaining electrical and mechanical compatibility.

Substiute Parts

RNF14FAC110K

Stackpole Electronics IncIn Stock: 803RNF14FAC110K Datasheet

Current PartRFQ

RNMF14FTC110K

Stackpole Electronics IncIn Stock: 17738RNMF14FTC110K Datasheet

MFR RecommendedRFQ

CMF55110K00FHEB

Vishay DaleIn Stock: 4478CMF55110K00FHEB Datasheet

UpgradeRFQ

CMF50110K00FHEB

Vishay DaleIn Stock: 1540CMF50110K00FHEB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RNF14FAC110K are grouped based on the following allowed electrical and mechanical parameters:

Primary Substitution Criteria:

• Resistance value: 110 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Composition: Metal Film (exact match required)
• Package: Axial through-hole (exact match required)
• Temperature Coefficient: ±50ppm/°C (exact match required)
• RoHS Compliance: ROHS3 Compliant (exact match required)

Secondary Compatibility Parameters:

• Power rating: 0.25W minimum (equal or higher acceptable)
• Operating temperature range: -55°C minimum, 155°C maximum (equal or wider acceptable)
• Features: Flame retardant coating and safety construction (maintained across all substitutes)

The substitute parts are classified into two categories: MFR Recommended (same manufacturer, optimized packaging) and Upgrade (alternative manufacturer, enhanced performance envelope).

Parameter Comparison

Engineering Selection Recommendations

RNMF14FTC110K (Stackpole Electronics Inc - MFR Recommended): This substitute maintains identical electrical specifications and operating temperature range as the RNF14FAC110K. It is manufactured by the same supplier and offers the same 0.25W power rating and ±1% tolerance. The primary difference is the smaller physical footprint (0.070" Dia x 0.130" L versus 0.093" Dia x 0.250" L) and Cut Tape packaging format. This part is suitable for applications where space constraints or tape reel inventory requirements are factors. ROHS3 compliance and active product status are maintained.

CMF50110K00FHEB (Vishay Dale - MFR Recommended): This substitute provides equivalent electrical performance with identical 0.25W power rating and ±1% tolerance. The Vishay Dale CMF50 series offers an extended operating temperature range (-55°C ~ 175°C versus -55°C ~ 155°C) and includes moisture-resistant construction in addition to flame retardant coating. Physical dimensions are smaller (0.065" Dia x 0.150" L). This part is suitable for applications requiring enhanced environmental protection or higher maximum operating temperature capability. ROHS3 compliance and active product status are maintained.

CMF55110K00FHEB (Vishay Dale - Upgrade): This substitute provides an upgraded power rating of 0.5W (1/2W) while maintaining the same 110 kOhms ±1% resistance and ±50ppm/°C temperature coefficient. The extended operating temperature range (-55°C ~ 175°C) and moisture-resistant construction provide enhanced performance envelope. Physical dimensions are comparable to the original part (0.090" Dia x 0.240" L). This part is suitable for applications where higher power dissipation capability or extended temperature operation is required. ROHS3 compliance and active product status are maintained.

Frequently Asked Questions (FAQ)

Q: Can RNMF14FTC110K be used as a direct replacement for RNF14FAC110K?

A: Yes. Both parts share identical electrical specifications: 110 kOhms ±1% resistance, 0.25W power rating, ±50ppm/°C temperature coefficient, and -55°C ~ 155°C operating range. The primary difference is physical size and packaging format. Verify PCB layout compatibility due to the smaller footprint of RNMF14FTC110K (0.070" Dia x 0.130" L versus 0.093" Dia x 0.250" L).

Q: What is the difference between CMF50110K00FHEB and CMF55110K00FHEB?

A: Both are Vishay Dale metal film resistors with 110 kOhms ±1% resistance. The primary difference is power rating: CMF50110K00FHEB is rated 0.25W (matching the original part), while CMF55110K00FHEB is rated 0.5W. Both offer extended operating temperature range (-55°C ~ 175°C) and moisture-resistant construction. Select CMF55110K00FHEB if your application requires higher power dissipation capability.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. RNF14FAC110K, RNMF14FTC110K, CMF50110K00FHEB, and CMF55110K00FHEB are all ROHS3 compliant with REACH Unaffected status.

Q: Can I use a 0.5W rated resistor (CMF55110K00FHEB) in place of a 0.25W rated resistor (RNF14FAC110K)?

A: Yes. A higher power rating is acceptable for direct substitution. The 0.5W rated CMF55110K00FHEB can be used in any application designed for the 0.25W RNF14FAC110K. The higher power rating provides additional thermal margin and does not affect circuit operation.

Q: What are the physical size constraints for substitution?

A: The substitute parts have different physical dimensions. RNF14FAC110K is 0.093" Dia x 0.250" L. RNMF14FTC110K is significantly smaller at 0.070" Dia x 0.130" L. CMF50110K00FHEB is 0.065" Dia x 0.150" L. CMF55110K00FHEB is 0.090" Dia x 0.240" L. Verify PCB layout and mechanical clearance before substitution.

Q: Which substitute part offers the best environmental protection?

A: CMF50110K00FHEB and CMF55110K00FHEB both feature moisture-resistant construction in addition to flame retardant coating. RNF14FAC110K and RNMF14FTC110K feature flame retardant coating only. For applications requiring moisture resistance, select either CMF series part.