471R0SC Equivalent & Substitute Parts

Part Overview

The 471R0SC is a 1 µH shielded wirewound inductor manufactured by Murata Power Solutions Inc., rated for 10 A continuous current with a maximum DC resistance of 4.8mOhm. This component is designed for surface mount applications in the 4700S series and operates across the temperature range of -40°C to 85°C.

The 471R0SC has reached obsolete product status. Identifying qualified substitute components ensures design continuity and supply chain reliability for applications requiring equivalent electrical and mechanical performance.

Substiute Parts

471R0SC

Murata Power Solutions Inc.In Stock: 877471R0SC Datasheet

Current PartRFQ

DR124-1R0-R

Eaton - Electronics DivisionIn Stock: 1695DR124-1R0-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 471R0SC is determined by the following critical parameters:

• Inductance Value: Must be 1 µH to maintain circuit functionality
• Current Rating: Must meet or exceed 10 A to handle design current requirements
• DC Resistance: Lower DCR values improve efficiency; 4.8mOhm maximum is the baseline requirement
• Shielding: Shielded construction is required to minimize electromagnetic interference
• Mounting Type: Surface mount configuration is mandatory for PCB compatibility
• Operating Temperature Range: Must support -40°C to 85°C minimum
• Package Compatibility: Nonstandard 4-lead surface mount package with similar footprint dimensions

The DR124-1R0-R from Eaton - Electronics Division qualifies as a manufacturer-recommended substitute, meeting all critical electrical parameters while offering improved performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The DR124-1R0-R is qualified as a direct substitute for the 471R0SC based on the following factors:

Electrical Equivalence: Both components provide 1 µH inductance with shielded construction. The DR124-1R0-R exceeds the current rating requirement (13.9 A vs. 10 A) and provides superior DC resistance performance (3.6mOhm vs. 4.8mOhm maximum), resulting in lower power dissipation.

Compliance Status: The DR124-1R0-R maintains ROHS3 compliance and REACH unaffected status, consistent with the original component's regulatory requirements.

Temperature Range: The substitute component supports an extended operating temperature range (-40°C to 125°C), providing additional thermal margin beyond the original specification (-40°C to 85°C).

Physical Compatibility: Footprint dimensions are comparable (12.50mm x 12.50mm vs. 12.20mm x 12.20mm), with the substitute component featuring a lower profile (4.50mm vs. 5.00mm maximum height), which may provide layout advantages.

Product Availability: The DR124-1R0-R is in active production status with confirmed inventory, ensuring long-term supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can the DR124-1R0-R be used as a direct replacement for the 471R0SC?

A: Yes. Both components meet the core substitution criteria: identical 1 µH inductance, shielded construction, surface mount configuration, and equivalent operating temperature support. The DR124-1R0-R exceeds the original current rating and provides lower DC resistance.

Q: What are the key differences between these two inductors?

A: The primary differences are manufacturer (Murata vs. Eaton), core construction (wirewound vs. drum core wirewound), current rating (10 A vs. 13.9 A), DC resistance (4.8mOhm vs. 3.6mOhm), tolerance (±30% vs. ±20%), and operating temperature range (-40°C to 85°C vs. -40°C to 125°C). The substitute offers improved electrical performance and extended thermal capability.

Q: Are there any PCB layout considerations when switching to the DR124-1R0-R?

A: The footprint dimensions differ slightly (12.50mm x 12.50mm vs. 12.20mm x 12.20mm). Verify that the PCB pad layout accommodates the marginally larger footprint. The lower profile height (4.50mm vs. 5.00mm) may provide clearance benefits in space-constrained designs.

Q: Does the tolerance difference affect circuit performance?

A: The DR124-1R0-R provides tighter tolerance (±20% vs. ±30%), which may improve circuit consistency and reduce performance variation across production batches. This is a performance advantage for applications sensitive to inductance variation.

Q: Are both components RoHS compliant?

A: Yes. The 471R0SC is RoHS compliant, and the DR124-1R0-R is ROHS3 compliant. Both meet current regulatory requirements for hazardous substance restrictions.