RNF14FTC105R Equivalent & Substitute Parts

Part Overview

The RNF14FTC105R is a 105 Ohm ±1% metal film axial through-hole resistor rated at 0.25W (1/4W) manufactured by Stackpole Electronics Inc. This component features flame retardant coating and safety construction, designed for applications requiring precision resistance in compact form factors. The part maintains Active product status with ROHS3 compliance and is suitable for general-purpose electronic circuit applications across industrial and commercial environments.

Substitute parts are identified when equivalent electrical performance can be maintained while accommodating design flexibility, inventory availability, or thermal margin requirements within the specified operating parameters.

Substiute Parts

RNF14FTC105R

Stackpole Electronics IncIn Stock: 1179RNF14FTC105R Datasheet

Current PartRFQ

CMF55105R00FHEB

Vishay DaleIn Stock: 3037CMF55105R00FHEB Datasheet

UpgradeRFQ

CMF50105R00FHEB

Vishay DaleIn Stock: 1668CMF50105R00FHEB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Electrical Parameters (Must Match):

• Resistance value: 105 Ohms
• Tolerance: ±1%
• Composition: Metal Film
• Temperature Coefficient: ±50ppm/°C

Mechanical Parameters (Must Match):

• Package Type: Axial through-hole
• Number of Terminations: 2

Thermal Parameters (May Exceed):

• Power rating may be equal or higher
• Operating temperature range may be equal or extended

Compliance Parameters (Must Match or Exceed):

• RoHS Status: ROHS3 Compliant minimum
• REACH Status: REACH Unaffected

The CMF50105R00FHEB and CMF55105R00FHEB from Vishay Dale meet all electrical and mechanical substitution criteria. Both maintain identical resistance, tolerance, temperature coefficient, and axial package configuration. The CMF50105R00FHEB provides direct 1:1 electrical equivalence with identical 0.25W power rating. The CMF55105R00FHEB offers increased thermal margin at 0.5W power rating while maintaining all other electrical specifications.

Parameter Comparison

Engineering Selection Recommendations

CMF50105R00FHEB (MFR Recommended Substitute): This part provides direct electrical and thermal equivalence to the RNF14FTC105R with identical 0.25W power rating and matching operating temperature range extension to 175°C. Selection is appropriate for applications requiring component interchangeability with enhanced moisture resistance and extended thermal operating margin. Both parts maintain ROHS3 compliance and REACH Unaffected status.

CMF55105R00FHEB (Upgrade Substitute): This part maintains all electrical specifications while providing increased power dissipation capability at 0.5W. Selection is appropriate for applications where thermal margin enhancement is beneficial or where component consolidation across multiple power ratings is desired. Extended operating temperature range to 175°C and moisture-resistant construction provide additional environmental protection. ROHS3 compliance and REACH Unaffected status are maintained.

Frequently Asked Questions (FAQ)

Q: Can CMF50105R00FHEB be used as a direct replacement for RNF14FTC105R?

A: Yes. Both parts share identical electrical specifications (105 Ohms ±1%, ±50ppm/°C temperature coefficient, metal film composition) and axial package configuration. The CMF50105R00FHEB maintains the same 0.25W power rating with extended operating temperature range to 175°C and adds moisture-resistant construction.

Q: What is the difference between CMF50105R00FHEB and CMF55105R00FHEB?

A: The primary difference is power rating. CMF50105R00FHEB is rated at 0.25W (1/4W), matching the original RNF14FTC105R. CMF55105R00FHEB is rated at 0.5W (1/2W), providing increased thermal dissipation capability. All other electrical parameters remain identical. Physical dimensions differ slightly due to the higher power rating.

Q: Are there any compatibility concerns with axial package dimensions?

A: All three parts use axial through-hole packaging with 2 terminations. Physical dimensions vary slightly: RNF14FTC105R measures 0.093" Dia x 0.250" L, CMF50105R00FHEB measures 0.065" Dia x 0.150" L, and CMF55105R00FHEB measures 0.090" Dia x 0.240" L. Verify PCB layout and component spacing accommodate the selected substitute dimensions.

Q: Do all parts meet current compliance requirements?

A: Yes. RNF14FTC105R, CMF50105R00FHEB, and CMF55105R00FHEB are all ROHS3 Compliant and REACH Unaffected, meeting current regulatory requirements for electronic component manufacturing and distribution.

Q: Which substitute should be selected for new designs?

A: For new designs requiring direct electrical equivalence, CMF50105R00FHEB is the manufacturer-recommended substitute. For applications where thermal margin is beneficial or where power rating consolidation is desired, CMF55105R00FHEB provides enhanced performance within the same electrical specification envelope.