RNF14FAC9K09 Equivalent & Substitute Parts

Part Overview

The RNF14FAC9K09 is a 9.09 kOhms ±1% 0.25W 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 form factors. The part is currently active in production with 751 units in stock. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same resistance value, tolerance, power rating, and package type.

Substiute Parts

RNF14FAC9K09

Stackpole Electronics IncIn Stock: 801RNF14FAC9K09 Datasheet

Current PartRFQ

CMF509K0900FHEB

Vishay DaleIn Stock: 869CMF509K0900FHEB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RNF14FAC9K09 is determined by the following critical parameters:

• Resistance value: 9.09 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.25W / 1/4W (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 CMF509K0900FHEB 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 RNF14FAC9K09 and CMF509K0900FHEB are active production parts with ROHS3 compliance and REACH unaffected status. Selection between these parts is based on application requirements and availability:

The RNF14FAC9K09 operates within -55°C to 155°C and is supplied in Tape & Box packaging. The CMF509K0900FHEB extends the upper operating temperature to 175°C and includes moisture resistant properties, with availability in Cut Tape format. Both parts maintain identical electrical performance across the specified resistance, tolerance, power rating, and temperature coefficient parameters. Physical dimensions differ slightly between the two axial packages, with the CMF509K0900FHEB measuring 0.065" diameter by 0.150" length compared to the RNF14FAC9K09 at 0.093" diameter by 0.250" length.

Frequently Asked Questions (FAQ)

Q: Can the CMF509K0900FHEB directly replace the RNF14FAC9K09 in existing designs?

A: Yes. Both parts share identical electrical specifications: 9.09 kOhms ±1% at 0.25W with ±50ppm/°C temperature coefficient. The axial package configuration is compatible. Physical dimensions differ, which may affect board layout in space-constrained applications.

Q: What is the difference in operating temperature range between these parts?

A: The RNF14FAC9K09 operates from -55°C to 155°C. The CMF509K0900FHEB extends to -55°C to 175°C. For applications requiring operation above 155°C, the CMF509K0900FHEB is the appropriate selection.

Q: Are there packaging differences between these substitute parts?

A: Yes. The RNF14FAC9K09 is supplied in Tape & Box (TB) format, while the CMF509K0900FHEB is available in Cut Tape (CT) format. Both formats are standard for through-hole component distribution.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the RNF14FAC9K09 and CMF509K0900FHEB are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8533.21.0090.

Q: What additional features does the CMF509K0900FHEB provide?

A: The CMF509K0900FHEB includes moisture resistant properties in addition to the flame retardant coating and safety features present in the RNF14FAC9K09. This provides enhanced environmental protection in humid or moisture-prone applications.