RNF14FTC9K09 Equivalent & Substitute Parts

Part Overview

The RNF14FTC9K09 is a 9.09 kOhms ±1% metal film through-hole resistor rated at 0.25W (1/4W) in axial package configuration, manufactured by Stackpole Electronics Inc. This component features flame retardant coating and safety-rated construction suitable for industrial and consumer applications. The part maintains Active product status with 706 units in current inventory. Substitute parts are identified to provide design flexibility, supply chain alternatives, and equivalent electrical performance across compatible applications.

Substiute Parts

RNF14FTC9K09

Stackpole Electronics IncIn Stock: 733RNF14FTC9K09 Datasheet

Current PartRFQ

CMF509K0900FHEB

Vishay DaleIn Stock: 869CMF509K0900FHEB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RNF14FTC9K09 are qualified based on the following electrical and mechanical parameters:

• Resistance value: 9.09 kOhms (exact match required)
• Tolerance: ±1% (equivalent precision class)
• Power rating: 0.25W / 1/4W (equivalent dissipation capability)
• Composition: Metal Film (same technology class)
• Package: Axial (same form factor and termination type)
• Temperature coefficient: ±50ppm/°C (equivalent stability)
• Regulatory compliance: ROHS3 Compliant, REACH Unaffected, EAR99 classification

The CMF509K0900FHEB from Vishay Dale meets all substitution criteria with identical electrical specifications and compatible mechanical dimensions within axial package standards.

Parameter Comparison

Engineering Selection Recommendations

Both the RNF14FTC9K09 and CMF509K0900FHEB are Active status components with full ROHS3 compliance and REACH unaffected certification. Selection between these parts is determined by application requirements and availability:

The RNF14FTC9K09 is suitable for standard applications within the -55°C to 155°C operating range with 706 units currently in stock.

The CMF509K0900FHEB provides extended operating temperature capability to 175°C and includes moisture resistant features, with 801 units in current inventory. This substitute is appropriate for applications requiring enhanced environmental protection or elevated temperature operation within the specified range.

Both components maintain identical electrical performance, tolerance, and power dissipation characteristics. Physical dimensions differ slightly; the CMF509K0900FHEB features a more compact axial profile (0.065" diameter × 0.150" length versus 0.093" diameter × 0.250" length), which may influence PCB layout considerations in space-constrained designs.

Frequently Asked Questions (FAQ)

Q: Can CMF509K0900FHEB replace RNF14FTC9K09 in existing designs?

A: Yes. Both components share identical resistance (9.09 kOhms), tolerance (±1%), power rating (0.25W), and temperature coefficient (±50ppm/°C). Axial package compatibility is maintained. Physical dimension differences are minor and typically do not affect PCB routing in standard applications.

Q: What is the difference in operating temperature range?

A: The RNF14FTC9K09 operates from -55°C to 155°C. The CMF509K0900FHEB extends the upper limit to 175°C. For applications operating below 155°C, both parts are functionally equivalent. Applications requiring operation above 155°C require the CMF509K0900FHEB.

Q: Are there packaging differences between these parts?

A: The RNF14FTC9K09 is supplied in Tape & Reel (TR) packaging. The CMF509K0900FHEB is supplied in Cut Tape (CT) packaging. Both are standard formats for through-hole component distribution and do not affect component performance or PCB assembly compatibility.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both components are ROHS3 Compliant, REACH Unaffected, and classified as EAR99 for export control purposes. Regulatory compliance is equivalent across both parts.

Q: What is the significance of the moisture resistant feature in the CMF509K0900FHEB?

A: The CMF509K0900FHEB includes moisture resistant construction in addition to flame retardant coating. This feature provides enhanced protection in humid or high-moisture environments. The RNF14FTC9K09 includes flame retardant coating and safety features without the additional moisture resistant specification.