RNF12FTC24K3 Equivalent & Substitute Parts

Part Overview

The RNF12FTC24K3 is a 24.3 kOhms ±1% metal film axial through-hole resistor rated at 0.5W (1/2W) manufactured by Stackpole Electronics Inc. This component features flame retardant coating and safety-grade construction, designed for applications requiring precision resistance values with reliable performance across industrial temperature ranges. The part is currently in active production status with 1042 units available in inventory. Substitute parts are identified to provide alternative sourcing options when the primary part becomes unavailable or when procurement requirements necessitate alternative manufacturers.

Substiute Parts

RNF12FTC24K3

Stackpole Electronics IncIn Stock: 1151RNF12FTC24K3 Datasheet

Current PartRFQ

CMF5524K300FHEB

Vishay DaleIn Stock: 8316CMF5524K300FHEB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RNF12FTC24K3 are qualified based on the following critical electrical and mechanical parameters:

• Resistance value: 24.3 kOhms (exact match required)
• Tolerance: ±1% (precision grade match)
• Power rating: 0.5W / 1/2W (functional equivalence)
• Composition: Metal film (material consistency)
• Package configuration: Axial through-hole (mechanical compatibility)
• Temperature coefficient: ±50ppm/°C (stability match)
• Regulatory compliance: ROHS3 Compliant, REACH Unaffected (certification alignment)

The CMF5524K300FHEB from Vishay Dale meets all substitution criteria with identical electrical specifications and compatible mechanical form factor. Both parts share the same resistance, tolerance, power rating, composition, and temperature coefficient. The substitute part extends the operating temperature range to -55°C ~ 175°C, providing enhanced thermal performance while maintaining all other critical parameters.

Parameter Comparison

Engineering Selection Recommendations

Both the RNF12FTC24K3 and CMF5524K300FHEB are active production components with full ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for industrial and commercial applications. The CMF5524K300FHEB provides an extended operating temperature range to 175°C and includes moisture-resistant properties, offering enhanced environmental protection. Selection between these parts should be based on application temperature requirements, packaging format availability (Tape & Reel versus Cut Tape), and supplier inventory constraints. Both components are electrically and mechanically interchangeable for standard circuit applications requiring 24.3 kOhms ±1% precision resistance at 0.5W power dissipation.

Frequently Asked Questions (FAQ)

Q: Can the CMF5524K300FHEB replace the RNF12FTC24K3 in all applications?

A: Yes, the CMF5524K300FHEB is electrically and mechanically equivalent for applications operating within the RNF12FTC24K3 temperature range of -55°C to 155°C. The substitute part's extended temperature rating to 175°C provides additional margin for high-temperature environments. Both parts share identical resistance values, tolerance, power rating, and temperature coefficient.

Q: What are the physical dimension differences between these parts?

A: The RNF12FTC24K3 measures 0.108" diameter × 0.344" length (2.75mm × 8.75mm). The CMF5524K300FHEB measures 0.090" diameter × 0.240" length (2.29mm × 6.10mm). The substitute part is physically smaller, which may affect board layout and mechanical mounting considerations in space-constrained applications.

Q: Are there packaging format differences?

A: Yes. The RNF12FTC24K3 is supplied in Tape & Reel (TR) format, while the CMF5524K300FHEB is supplied in Cut Tape (CT) format. Packaging selection depends on assembly process requirements and order quantity specifications.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the RNF12FTC24K3 and CMF5524K300FHEB are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for industrial applications.

Q: What additional features does the substitute part provide?

A: The CMF5524K300FHEB includes moisture-resistant properties in addition to the flame retardant coating and safety features present in the RNF12FTC24K3. This provides enhanced protection in humid or moisture-prone environments.