RNF12FTC5K23 Equivalent & Substitute Parts

Part Overview

The RNF12FTC5K23 is a 5.23 kOhms ±1% metal film through-hole resistor rated at 0.5W (1/2W) in axial package configuration, manufactured by Stackpole Electronics Inc. This component features flame retardant coating and safety-grade construction suitable for industrial and consumer applications requiring precision resistance values. The part is currently active in production with ROHS3 compliance and REACH unaffected status. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with application requirements.

Substiute Parts

RNF12FTC5K23

Stackpole Electronics IncIn Stock: 917RNF12FTC5K23 Datasheet

Current PartRFQ

CMF555K2300FHEB

Vishay DaleIn Stock: 1476CMF555K2300FHEB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RNF12FTC5K23 are qualified based on the following criteria:

• Identical resistance value: 5.23 kOhms
• Matching tolerance: ±1%
• Equivalent power rating: 0.5W (1/2W)
• Same composition: Metal Film
• Identical temperature coefficient: ±50ppm/°C
• Compatible package: Axial through-hole
• Matching features: Flame retardant coating and safety construction
• Equivalent compliance: ROHS3 compliant, REACH unaffected

The CMF555K2300FHEB from Vishay Dale meets all electrical and mechanical substitution criteria. Physical dimensions differ slightly, but both components maintain axial package compatibility for standard PCB mounting applications.

Parameter Comparison

Engineering Selection Recommendations

Both the RNF12FTC5K23 and CMF555K2300FHEB are active production components with equivalent electrical specifications and full regulatory compliance. Selection between these parts depends on application-specific constraints:

The RNF12FTC5K23 maintains the original design specification with established supply chain documentation. The CMF555K2300FHEB provides an alternative with extended operating temperature range to 175°C and additional moisture resistance features, along with compact physical dimensions. Both components satisfy ROHS3 and REACH compliance requirements for regulated applications.

Frequently Asked Questions (FAQ)

Q: Can CMF555K2300FHEB replace RNF12FTC5K23 in existing designs?

A: Yes. Both components share identical electrical specifications (5.23 kOhms ±1%, 0.5W, ±50ppm/°C) and axial package configuration. The CMF555K2300FHEB has smaller physical dimensions and extended temperature range, which may require PCB layout verification for space-constrained applications.

Q: What are the physical dimension differences?

A: RNF12FTC5K23 measures 0.108" diameter × 0.344" length (2.75mm × 8.75mm). CMF555K2300FHEB measures 0.090" diameter × 0.240" length (2.29mm × 6.10mm). The substitute part is more compact in both diameter and length.

Q: Are both parts suitable for high-temperature applications?

A: RNF12FTC5K23 operates to 155°C maximum. CMF555K2300FHEB extends to 175°C. For applications requiring operation above 155°C, the CMF555K2300FHEB is the appropriate selection.

Q: Do both parts meet regulatory requirements?

A: Yes. Both components are ROHS3 compliant and REACH unaffected, suitable for regulated consumer and industrial applications.

Q: What is the difference in moisture resistance?

A: CMF555K2300FHEB includes moisture resistant features in addition to flame retardant coating. RNF12FTC5K23 specifies flame retardant coating and safety features. For moisture-sensitive environments, CMF555K2300FHEB provides additional protection.