RNF12FTC47K5 Equivalent & Substitute Parts

Part Overview

The RNF12FTC47K5 is a 47.5 kOhms ±1% metal film through-hole resistor rated at 0.5W (1/2W) in axial package configuration, manufactured by Stackpole Electronics Inc. This component is classified as Active product status with flame retardant coating and safety features suitable for industrial and commercial applications. Substitute parts are identified to provide design flexibility, inventory alternatives, and sourcing options while maintaining electrical and mechanical compatibility.

Substiute Parts

RNF12FTC47K5

Stackpole Electronics IncIn Stock: 825RNF12FTC47K5 Datasheet

Current PartRFQ

CMF5547K500FHEB

Vishay DaleIn Stock: 7300CMF5547K500FHEB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RNF12FTC47K5 are qualified based on the following electrical and mechanical parameters:

• Identical resistance value: 47.5 kOhms
• Matching tolerance: ±1%
• Equivalent power rating: 0.5W (1/2W)
• Same composition: Metal Film
• Identical package: Axial through-hole
• Matching temperature coefficient: ±50ppm/°C
• Compatible operating temperature range (minimum -55°C, maximum ≥155°C)
• Equivalent safety and flame retardant features
• ROHS3 compliance maintained

The CMF5547K500FHEB from Vishay Dale meets all substitution criteria with enhanced moisture resistance and extended upper operating temperature to 175°C.

Parameter Comparison

Engineering Selection Recommendations

Both the RNF12FTC47K5 and CMF5547K500FHEB are Active product status components with full ROHS3 compliance and REACH unaffected status, qualifying them for equivalent circuit applications. The CMF5547K500FHEB provides extended upper operating temperature capability (175°C vs. 155°C) and additional moisture resistance, making it suitable for applications requiring enhanced environmental performance. Physical dimensions differ slightly (RNF: 0.108" Dia x 0.344" L; CMF: 0.090" Dia x 0.240" L), which may affect PCB layout considerations in space-constrained designs. Packaging format differs (Tape & Reel vs. Cut Tape), relevant to procurement and assembly processes.

Frequently Asked Questions (FAQ)

Q: Can CMF5547K500FHEB replace RNF12FTC47K5 in all applications?

A: Yes, provided the application does not require the specific physical dimensions of the RNF12FTC47K5. Both components share identical electrical specifications (47.5 kOhms ±1%, 0.5W, ±50ppm/°C, metal film composition). The CMF5547K500FHEB operates to 175°C versus 155°C maximum, providing additional thermal margin.

Q: What are the physical dimension differences?

A: RNF12FTC47K5 measures 0.108" Dia x 0.344" L (2.75mm x 8.75mm). CMF5547K500FHEB measures 0.090" Dia x 0.240" L (2.29mm x 6.10mm). The substitute is smaller in both diameter and length, which may require PCB layout verification for existing designs.

Q: Are packaging formats interchangeable?

A: Packaging format (Tape & Reel vs. Cut Tape) affects procurement and assembly handling but does not impact electrical or mechanical compatibility. Component selection depends on manufacturing process requirements.

Q: Do both parts meet compliance requirements?

A: Both components are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with identical HTSUS code 8533.21.0090.

Q: What is the significance of moisture resistance in the substitute?

A: The CMF5547K500FHEB includes moisture resistant features in addition to flame retardant coating, providing enhanced performance in humid or high-moisture environments compared to the RNF12FTC47K5.