RNF14FAC100K Equivalent & Substitute Parts

Part Overview

The RNF14FAC100K is a 100 kOhms ±1% metal film axial through-hole resistor rated at 0.25W (1/4W) manufactured by Stackpole Electronics Inc. This component is currently in active production status with 1,008 pieces available in inventory. The RNF14FAC100K features flame retardant coating and safety construction, operating across a temperature range of -55°C to 155°C with a temperature coefficient of ±50ppm/°C. Equivalent and substitute parts are identified based on matching resistance value, power rating, tolerance, composition, and package type while accommodating variations in packaging format, tolerance precision, and thermal performance specifications.

Substiute Parts

RNF14FAC100K

Stackpole Electronics IncIn Stock: 1113RNF14FAC100K Datasheet

Current PartRFQ

RNF14BTE100K

Stackpole Electronics IncIn Stock: 70220RNF14BTE100K Datasheet

UpgradeRFQ

RNMF14FTC100K

Stackpole Electronics IncIn Stock: 55071RNMF14FTC100K Datasheet

MFR RecommendedRFQ

CMF55100K00FHEB

Vishay DaleIn Stock: 28095CMF55100K00FHEB Datasheet

UpgradeRFQ

CPF1100K00BHEE6

Vishay DaleIn Stock: 3332CPF1100K00BHEE6 Datasheet

UpgradeRFQ

CPF1100K00FEEE6

Vishay DaleIn Stock: 7986CPF1100K00FEEE6 Datasheet

UpgradeRFQ

CMF50100K00FHEB

Vishay DaleIn Stock: 7057CMF50100K00FHEB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RNF14FAC100K are categorized based on the following substitution criteria:

Direct Equivalents (Same Specifications): Parts matching all critical parameters—100 kOhms resistance, ±1% tolerance, 0.25W power rating, metal film composition, and axial package—with identical or superior thermal and safety characteristics.

Tolerance Upgrades: Parts with tighter tolerance specifications (±0.1%) while maintaining identical resistance, power rating, and package type. These provide enhanced precision for applications requiring stricter component tolerances.

Packaging Variants: Parts with identical electrical specifications but different physical dimensions or packaging formats (Cut Tape vs. Tape & Box), enabling inventory flexibility without functional compromise.

Power Rating Upgrades: Parts with higher power ratings (0.5W or 1W) while maintaining 100 kOhms resistance and ±1% tolerance, suitable for applications requiring increased thermal dissipation capability.

Manufacturer Alternatives: Parts from alternative manufacturers (Vishay Dale) with equivalent electrical and mechanical specifications, providing supply chain diversification.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications): RNF14BTE100K and RNMF14FTC100K from Stackpole Electronics Inc provide direct electrical equivalence to the RNF14FAC100K. Both maintain 100 kOhms resistance, ±1% tolerance, and 0.25W power rating. RNF14BTE100K offers improved tolerance precision at ±0.1% with reduced temperature coefficient (±25ppm/°C), while RNMF14FTC100K provides a compact form factor with identical electrical performance. Both are ROHS3 compliant and suitable for applications requiring no design modification.

For Enhanced Thermal Performance: CMF50100K00FHEB (Vishay Dale) matches the RNF14FAC100K electrical specifications while extending the operating temperature range to 175°C and providing moisture-resistant construction. This part is recommended for applications requiring extended thermal operating margins within the same power rating and package category.

For Increased Power Dissipation: CMF55100K00FHEB and CPF1100K00FEEE6 provide 0.5W and 1W power ratings respectively, maintaining 100 kOhms resistance and ±1% tolerance. These upgrades accommodate applications requiring higher thermal dissipation without changing the resistance value. CPF1100K00FEEE6 additionally extends the operating temperature range to 230°C and provides flame-proof construction.

For Precision Applications: RNF14BTE100K and CPF1100K00BHEE6 offer ±0.1% tolerance specifications, suitable for circuits requiring tighter component tolerances. Both maintain ROHS3 compliance and are available in active production status.

For Supply Chain Flexibility: Vishay Dale alternatives (CMF and CPF series) provide equivalent functionality with different manufacturing sources, enabling procurement diversification while maintaining electrical and mechanical compatibility within specified parameter ranges.

Frequently Asked Questions (FAQ)

Q: Can RNF14BTE100K replace RNF14FAC100K directly? A: Yes. RNF14BTE100K provides direct electrical equivalence with identical resistance (100 kOhms), tolerance (±1%), and power rating (0.25W). The primary differences are packaging format (Cut Tape vs. Tape & Box) and improved temperature coefficient (±25ppm/°C vs. ±50ppm/°C). No circuit modification is required.

Q: What is the difference between RNMF14FTC100K and RNF14FAC100K? A: Both parts share identical electrical specifications (100 kOhms, ±1%, 0.25W). RNMF14FTC100K is a miniature variant with reduced physical dimensions (0.070" Dia x 0.130" L vs. 0.093" Dia x 0.250" L). Selection depends on PCB space constraints and mechanical fit requirements.

Q: Can I use CMF55100K00FHEB (0.5W) in place of RNF14FAC100K (0.25W)? A: Yes, from an electrical standpoint. CMF55100K00FHEB maintains 100 kOhms resistance and ±1% tolerance. The higher power rating (0.5W) provides additional thermal margin and is suitable for applications where the original 0.25W rating may be marginal. Physical dimensions differ slightly, requiring PCB layout verification.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance, ensuring regulatory compatibility with the original RNF14FAC100K specification.

Q: What is the advantage of ±0.1% tolerance parts over ±1%? A: ±0.1% tolerance parts (RNF14BTE100K, CPF1100K00BHEE6) provide tighter resistance accuracy, reducing component-to-component variation. This is beneficial for precision analog circuits, measurement instrumentation, and applications where tolerance stack-up affects circuit performance.

Q: Can Vishay Dale parts substitute for Stackpole parts? A: Yes. CMF50100K00FHEB, CMF55100K00FHEB, CPF1100K00FEEE6, and CPF1100K00BHEE6 provide equivalent electrical and mechanical specifications to the RNF14FAC100K. Selection is based on matching the required resistance, tolerance, power rating, and operating temperature range for your specific application.

Q: What is the temperature coefficient difference, and does it matter? A: Temperature coefficient indicates resistance change per degree Celsius. RNF14FAC100K has ±50ppm/°C, while RNF14BTE100K has ±25ppm/°C. For applications operating across wide temperature ranges or requiring stable resistance values, the lower temperature coefficient provides better performance stability.