Murata Power Solutions 48470C Equivalent & Substitute Parts

Part Overview

The Murata Power Solutions 48470C is a 47 µH shielded wirewound inductor rated for 1.8 A continuous current with a maximum DC resistance of 274mOhm. 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 inductance values, current ratings, and shielding characteristics can be achieved through alternative component configurations while maintaining functional compatibility within specified electrical and mechanical constraints.

Substiute Parts

48470C

Murata Power SolutionsIn Stock: 107848470C Datasheet

Current PartRFQ

SRF1260-470M

Bourns Inc.In Stock: 3387SRF1260-470M Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The Bourns Inc. SRF1260-470M qualifies as a substitute based on the following substitution criteria:

Inductance Compatibility: The SRF1260-470M is a 2-coil inductor array that provides 47 µH inductance when coils are connected in parallel, matching the primary inductance specification of the 48470C.

Current Rating Compatibility: The parallel configuration of the SRF1260-470M supports 2.71 A continuous current, which exceeds the 1.8 A requirement of the 48470C, providing adequate current capacity margin.

DC Resistance Compatibility: The parallel DCR of 86mOhm max is lower than the 48470C specification of 274mOhm max, resulting in reduced power dissipation and improved efficiency characteristics.

Shielding: Both components feature shielded construction, maintaining electromagnetic isolation properties.

Mounting and Environmental: Both components are surface mount with RoHS3 compliance. The SRF1260-470M operates across -40°C to 125°C, which encompasses the 48470C operating range.

Physical Compatibility: Both components share identical height (0.244" / 6.20mm) and similar footprint dimensions (12.20mm vs 12.50mm), permitting direct board-level substitution with minimal layout adjustment.

Parameter Comparison

Engineering Selection Recommendations

Both the 48470C and SRF1260-470M maintain Active product status with full RoHS3 compliance and REACH unaffected classification. The SRF1260-470M provides functional equivalence with performance advantages in current capacity and DC resistance characteristics. Selection between these components should be based on circuit board layout constraints, as the SRF1260-470M footprint is marginally larger (12.50mm vs 12.20mm). The extended operating temperature range of the SRF1260-470M (-40°C to 125°C) provides additional thermal margin for applications operating near the upper limit of the 48470C specification.

Frequently Asked Questions (FAQ)

Q: Can the SRF1260-470M directly replace the 48470C in all applications?

A: The SRF1260-470M provides electrical equivalence when configured in parallel mode (47 µH, 2.71 A, 86mOhm DCR). Physical board layout must accommodate the slightly larger footprint (12.50mm vs 12.20mm). Both components share identical height and mounting type, permitting direct substitution in most PCB designs with minor routing adjustments.

Q: What is the difference between the series and parallel configurations of the SRF1260-470M?

A: The SRF1260-470M is a 2-coil array. Parallel connection yields 47 µH inductance at 2.71 A current rating with 86mOhm DCR. Series connection yields 188 µH inductance at 1.35 A current rating with 340mOhm DCR. Only the parallel configuration matches the 48470C electrical specifications.

Q: Are there temperature range considerations for substitution?

A: The 48470C operates from -40°C to 85°C. The SRF1260-470M operates from -40°C to 125°C. The substitute component supports the full operating range of the original part and extends capability to higher temperatures, presenting no thermal compatibility issues.

Q: How do the DC resistance values affect circuit performance?

A: The SRF1260-470M parallel configuration provides 86mOhm DCR compared to the 48470C specification of 274mOhm max. Lower DCR reduces resistive losses and heat generation, improving efficiency. This represents a performance advantage rather than a limitation for substitution.

Q: What packaging considerations apply to this substitution?

A: Both components are surface mount with Tape & Reel packaging and MSL rating of 1 (Unlimited). Identical height (6.20mm) and similar footprint dimensions permit direct PCB substitution. Verify board layout clearances for the 12.50mm footprint dimension of the SRF1260-470M.