Murata Power Solutions 23S221C Equivalent & Substitute Parts

Part Overview

The Murata Power Solutions 23S221C is a 220 µH shielded wirewound inductor rated for 250 mA continuous current with a maximum DC resistance of 2.28Ohm. This surface mount component operates across the temperature range of -40°C to 85°C and is designed for applications requiring compact, shielded inductive filtering in power conversion and signal conditioning circuits. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances.

Substiute Parts

23S221C

Murata Power Solutions Inc.In Stock: 80223S221C Datasheet

Current PartRFQ

SRR6603-221ML

Bourns Inc.In Stock: 1687SRR6603-221ML Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The Bourns SRR6603-221ML qualifies as a substitute for the Murata 23S221C based on the following critical parameters:

Inductance equivalence: Both parts specify 220 µH nominal inductance, meeting the primary functional requirement.

Current rating compatibility: The SRR6603-221ML is rated for 220 mA, which is within 88% of the main part's 250 mA rating. This allows operation in applications where the full 250 mA capacity is not required.

DC resistance: The substitute part specifies 770mOhm maximum DC resistance, which is lower than the main part's 2.28Ohm, resulting in reduced power dissipation and improved efficiency in the application circuit.

Shielding: Both parts feature shielded construction, maintaining electromagnetic isolation requirements.

Surface mount packaging: Both components use surface mount technology with nonstandard package dimensions, enabling direct PCB integration.

Compliance alignment: Both parts carry ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1), ensuring regulatory and environmental compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the Murata 23S221C and Bourns SRR6603-221ML are active production components with ROHS3 compliance and unlimited moisture sensitivity ratings, ensuring regulatory alignment for industrial and commercial applications.

The Murata 23S221C is the primary specification when the full 250 mA current capacity and 2.28Ohm DC resistance profile are required by the circuit design.

The Bourns SRR6603-221ML serves as a substitute when the application current requirement does not exceed 220 mA and when the lower DC resistance of 770mOhm provides a performance advantage through reduced power dissipation. The extended operating temperature range of -55°C to 125°C offers additional thermal margin compared to the main part's -40°C to 85°C specification.

Physical dimensions differ slightly between the two parts. The Murata part measures 6.20mm L x 5.60mm W x 3.20mm H, while the Bourns part measures 6.60mm L x 4.40mm W x 3.00mm H. PCB layout verification is necessary to confirm mechanical fit within the available board space.

Frequently Asked Questions (FAQ)

Q: Can the Bourns SRR6603-221ML replace the Murata 23S221C in all applications?

A: The Bourns part qualifies as a substitute when the application current requirement does not exceed 220 mA. If the circuit design requires the full 250 mA capacity of the Murata part, the substitute is not appropriate.

Q: What is the significance of the different DC resistance values?

A: The Murata 23S221C specifies 2.28Ohm maximum DC resistance, while the Bourns SRR6603-221ML specifies 770mOhm maximum. Lower DC resistance reduces power dissipation in the inductor. Selection depends on the thermal budget and efficiency requirements of the application circuit.

Q: Do the physical dimensions differ between these parts?

A: Yes. The Murata 23S221C measures 6.20mm L x 5.60mm W x 3.20mm H. The Bourns SRR6603-221ML measures 6.60mm L x 4.40mm W x 3.00mm H. PCB layout must accommodate these dimensional differences to ensure proper component placement and clearance.

Q: Are both parts compliant with environmental and regulatory standards?

A: Both the Murata 23S221C and Bourns SRR6603-221ML carry ROHS3 compliance and are rated MSL 1 (unlimited moisture sensitivity). Both are REACH unaffected and classified under ECCN EAR99 and HTSUS 8504.50.4000.

Q: What is the difference in operating temperature ranges?

A: The Murata 23S221C operates from -40°C to 85°C. The Bourns SRR6603-221ML operates from -55°C to 125°C, providing a wider thermal operating window. Selection depends on the application's environmental temperature requirements.