246R8C Equivalent & Substitute Parts

Part Overview

The 246R8C is a 6.8 µH unshielded wirewound inductor manufactured by Murata Power Solutions, rated for 1.75 A continuous current with a maximum DC resistance of 61mOhm. This component is classified as Active product status and is RoHS3 compliant. Substitute parts are identified when equivalent inductance values, current ratings, and mounting specifications align within acceptable operational parameters for surface mount applications.

Substiute Parts

246R8C

Murata Power SolutionsIn Stock: 830246R8C Datasheet

Current PartRFQ

SDR0604-6R8ML

Bourns Inc.In Stock: 2130SDR0604-6R8ML Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 246R8C is determined by the following criteria:

Inductance value must match at 6.8 µH. Current rating of the substitute must meet or exceed 1.75 A to support the same load conditions. DC resistance should not significantly exceed the 61mOhm specification to maintain circuit performance. Shielding configuration must remain unshielded to preserve electromagnetic compatibility in the original design. Surface mount packaging is required for PCB assembly compatibility. Operating temperature range must support the minimum -40°C ~ 85°C specification. RoHS3 compliance is mandatory for regulatory alignment.

The SDR0604-6R8ML from Bourns Inc. qualifies as a substitute based on matching inductance, surface mount configuration, unshielded design, and RoHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

Both the 246R8C and SDR0604-6R8ML maintain Active product status and RoHS3 compliance. The SDR0604-6R8ML provides an extended operating temperature range of -40°C ~ 125°C compared to the 246R8C at -40°C ~ 85°C, offering broader thermal performance. The SDR0604-6R8ML exhibits higher DC resistance at 120mOhm Max versus 61mOhm Max on the primary part, which may result in increased power dissipation in high-current applications. Current rating on the substitute is 1.6 A, which is 0.15 A lower than the 246R8C rating of 1.75 A. Physical dimensions differ slightly, with the SDR0604-6R8ML measuring 5.80mm x 5.80mm versus 5.80mm x 5.20mm, and seated height of 4.80mm versus 4.50mm. Selection should account for PCB layout constraints and thermal dissipation requirements specific to the application.

Frequently Asked Questions (FAQ)

Q: Can the SDR0604-6R8ML directly replace the 246R8C in all applications?

A: Direct replacement requires verification of current load and thermal dissipation tolerance. The SDR0604-6R8ML has a lower current rating (1.6 A vs 1.75 A) and higher DC resistance (120mOhm vs 61mOhm). Applications operating near the 1.75 A limit or with strict power dissipation budgets may require circuit re-evaluation.

Q: What is the impact of the higher DC resistance in the substitute part?

A: Higher DC resistance increases resistive losses in the inductor. Power dissipation increases proportionally with current squared (P = I²R). At 1.6 A, the SDR0604-6R8ML dissipates approximately 307 mW, while the 246R8C at the same current dissipates approximately 156 mW.

Q: Are there physical compatibility concerns between these parts?

A: The SDR0604-6R8ML is slightly larger in width (5.80mm vs 5.20mm) and height (4.80mm vs 4.50mm). PCB footprint and component clearance must be verified before substitution.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both the 246R8C and SDR0604-6R8ML are RoHS3 compliant and REACH unaffected, meeting equivalent regulatory standards.

Q: What is the difference in operating temperature capability?

A: The SDR0604-6R8ML supports -40°C ~ 125°C, providing 40°C additional high-temperature margin compared to the 246R8C at -40°C ~ 85°C. This may be advantageous in thermal-constrained environments.