UB5C-47RF1 Equivalent & Substitute Parts

Part Overview

The UB5C-47RF1 is a 47 Ohm, ±1% tolerance, 5W axial wirewound resistor manufactured by Riedon. This component is designed for current sensing applications and features flame-proof, moisture-resistant, and pulse-withstanding characteristics. The part is currently active in production with 775 units in stock. Equivalent and substitute parts are identified when component availability is limited, supply chain disruptions occur, or design flexibility permits functional alternatives within specified electrical and mechanical parameters.

Substiute Parts

UB5C-47RF1

RiedonIn Stock: 805UB5C-47RF1 Datasheet

Current PartRFQ

RS00547R00FE73

Vishay DaleIn Stock: 2080RS00547R00FE73 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the UB5C-47RF1 is permissible when the replacement component meets the following criteria:

• Resistance value: 47 Ohms
• Tolerance: ±1%
• Power rating: 5W minimum
• Composition: Wirewound
• Package: Axial through-hole
• Temperature coefficient: ±20ppm/°C
• Operating temperature range: Must encompass or exceed -55°C ~ 250°C
• RoHS compliance: ROHS3 Compliant
• Regulatory status: REACH Unaffected, EAR99 classification

The RS00547R00FE73 from Vishay Dale satisfies all substitution criteria and is classified as a manufacturer-recommended equivalent.

Parameter Comparison

Engineering Selection Recommendations

The RS00547R00FE73 is a direct functional equivalent to the UB5C-47RF1. Both components are ROHS3 compliant, REACH unaffected, and classified under EAR99. The substitute part demonstrates an extended lower operating temperature limit (-65°C versus -55°C), providing additional thermal margin in cold-temperature applications. Both components are active products with established supply availability. Selection between these parts should be based on procurement lead time, inventory availability, and packaging requirements (Riedon supplies in bulk; Vishay Dale supplies in cut tape format).

Frequently Asked Questions (FAQ)

Q: Can the RS00547R00FE73 be used as a direct replacement for the UB5C-47RF1?

A: Yes. Both components share identical electrical specifications (47 Ohms, ±1%, 5W, ±20ppm/°C) and are packaged in axial through-hole format. The substitute meets all regulatory and compliance requirements.

Q: What is the difference in physical dimensions between these parts?

A: The UB5C-47RF1 measures 0.250" diameter × 0.500" length (6.40mm × 12.70mm). The RS00547R00FE73 measures 0.312" diameter × 0.875" length (7.92mm × 22.23mm). Physical size differences must be evaluated for PCB layout compatibility and thermal management considerations.

Q: Are there packaging differences between these parts?

A: Yes. The UB5C-47RF1 is supplied in bulk packaging. The RS00547R00FE73 is supplied in cut tape (CT) format. Packaging selection depends on production volume and assembly process requirements.

Q: Does the extended temperature range of the RS00547R00FE73 affect circuit performance?

A: No. The extended lower temperature limit (-65°C versus -55°C) provides additional operational margin without affecting performance within the original specification range. Both components maintain ±20ppm/°C temperature coefficient across their respective operating ranges.

Q: Are both parts suitable for current sensing applications?

A: The UB5C-47RF1 is explicitly specified for current sensing with flame-proof and pulse-withstanding features. The RS00547R00FE73 is specified as moisture-resistant wirewound. Confirm that the substitute part's feature set aligns with application-specific requirements before final selection.