Murata Power Solutions 48100C Fixed Inductor Equivalent & Substitute Parts

Part Overview

The Murata Power Solutions 48100C is a 10 µH shielded wirewound inductor rated for 3.9 A continuous current with a maximum DC resistance of 61.4 mOhm. This surface mount component operates across the industrial temperature range of -40°C to 85°C and is classified as Active product status with full RoHS3 compliance. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required for design flexibility, supply chain continuity, or inventory optimization.

Substiute Parts

48100C

Murata Power Solutions Inc.In Stock: 92648100C Datasheet

Current PartRFQ

SRF1260-100M

Bourns Inc.In Stock: 9468SRF1260-100M Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The Bourns SRF1260-100M qualifies as a substitute based on the following electrical and mechanical criteria:

Inductance Compatibility: The SRF1260-100M is a 2-coil inductor array that provides 10 µH inductance when coils are connected in parallel, matching the primary inductance requirement of the 48100C.

Current Rating: The parallel configuration of the SRF1260-100M supports 5.35 A continuous current, which exceeds the 48100C requirement of 3.9 A, providing operational margin.

DC Resistance: The parallel DCR of 24.6 mOhm is lower than the 48100C maximum of 61.4 mOhm, resulting in reduced power dissipation and improved efficiency.

Shielding and Mounting: Both components feature shielded construction and surface mount technology, ensuring electromagnetic compatibility and assembly process compatibility.

Environmental Compliance: Both parts meet RoHS3 requirements and carry MSL 1 rating, confirming suitability for standard manufacturing and storage conditions.

Parameter Comparison

Engineering Selection Recommendations

Both the Murata 48100C and Bourns SRF1260-100M maintain Active product status and full RoHS3 compliance. The SRF1260-100M offers superior electrical performance with higher current capacity and lower DC resistance when configured in parallel mode. The extended operating temperature range of -40°C to 125°C provides additional thermal margin for applications requiring elevated ambient conditions. Component selection should be based on PCB layout constraints, as the SRF1260-100M is a 2-coil array requiring parallel connection configuration to achieve the specified 10 µH inductance value.

Frequently Asked Questions (FAQ)

Q: Can the Bourns SRF1260-100M directly replace the Murata 48100C without circuit modification?

A: The SRF1260-100M requires the two coils to be connected in parallel to achieve 10 µH inductance. Direct footprint replacement is not possible without PCB layout modification to accommodate the parallel connection topology.

Q: What is the impact of lower DC resistance in the SRF1260-100M?

A: Lower DC resistance (24.6 mOhm vs. 61.4 mOhm) reduces resistive power loss and heat generation, improving overall circuit efficiency and component thermal performance.

Q: Are both components suitable for high-reliability applications?

A: Both components carry RoHS3 compliance and MSL 1 rating, confirming suitability for standard industrial and commercial applications. Specific reliability requirements should be evaluated against application-specific standards.

Q: What is the package dimension difference between these components?

A: The Murata 48100C measures 12.20mm × 12.20mm with 6.20mm seated height. The Bourns SRF1260-100M measures 12.50mm × 12.50mm with 6.20mm height. Both are nonstandard packages requiring custom footprint design.

Q: Can the SRF1260-100M be used in series configuration as a substitute?

A: The series configuration of the SRF1260-100M provides 40 µH inductance with 2.67 A current rating and 93.4 mOhm DCR, which does not match the 48100C electrical specifications and is not suitable as a substitute.