Murata Power Solutions 34223C Equivalent & Substitute Parts

Part Overview

The Murata Power Solutions 34223C is a 22 µH shielded wirewound inductor rated for 530 mA continuous current with a maximum DC resistance of 360mOhm. This surface mount component operates across the industrial temperature range of -40°C to 125°C and is classified as Active product status with full RoHS3 compliance. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for this inductance value and current rating category.

Substiute Parts

34223C

Murata Power Solutions Inc.In Stock: 114334223C Datasheet

Current PartRFQ

SRR4018-220Y

Bourns Inc.In Stock: 2251SRR4018-220Y Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The Bourns SRR4018-220Y qualifies as a substitute for the Murata 34223C based on the following alignment of critical parameters:

Matching Electrical Specifications:

• Inductance value: 22 µH (identical)
• Operating temperature range: -40°C to 125°C (identical)
• Shielding: Shielded (identical)
• RoHS3 compliance: Both parts meet ROHS3 requirements

Enhanced Performance Characteristics:

• Current rating: 880 mA (exceeds 530 mA requirement)
• DC resistance: 300mOhm Max (lower than 360mOhm specification)
• Saturation current: 650 mA (defined specification)

Mechanical Compatibility:

• Mounting type: Surface Mount (identical)
• Height seated: 0.079" (2.00mm) (identical)
• Package classification: Both use Tape & Reel packaging

The SRR4018-220Y provides equivalent or superior electrical performance while maintaining identical thermal and mechanical mounting characteristics.

Parameter Comparison

Engineering Selection Recommendations

Both the Murata 34223C and Bourns SRR4018-220Y maintain Active product status with full RoHS3 and REACH compliance. The SRR4018-220Y provides equivalent inductance and thermal operating range with enhanced current handling capacity and reduced DC resistance. Selection between these parts should be based on circuit current requirements, available inventory, and design margin preferences. Both components satisfy the electrical and mechanical requirements for 22 µH shielded surface mount inductor applications in the specified current and temperature operating envelope.

Frequently Asked Questions (FAQ)

Q: Can the Bourns SRR4018-220Y directly replace the Murata 34223C in existing designs?

A: Yes. Both components share identical inductance values (22 µH), operating temperature ranges (-40 to 125°C), shielding characteristics, surface mount configuration, and seated height (2.00mm). The Bourns part provides higher current rating (880 mA vs. 530 mA) and lower DC resistance (300mOhm vs. 360mOhm), making it functionally compatible for applications designed around the Murata specification.

Q: What is the significance of the inductance tolerance difference (±20% vs. ±30%)?

A: The Murata 34223C specifies ±20% tolerance while the Bourns SRR4018-220Y specifies ±30% tolerance. Both tolerances encompass the nominal 22 µH value. Circuit designs must account for the wider tolerance band of the substitute part if inductance precision is critical to circuit performance.

Q: Are there physical footprint differences between these parts?

A: The Murata 34223C measures 0.205" × 0.205" (5.20mm × 5.20mm) while the Bourns SRR4018-220Y measures 0.189" × 0.189" (4.80mm × 4.80mm). Both components have identical seated height of 0.079" (2.00mm). PCB layout must accommodate the dimensional difference in the X-Y plane.

Q: Do both parts meet the same regulatory compliance standards?

A: Yes. Both the Murata 34223C and Bourns SRR4018-220Y are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with identical HTSUS code 8504.50.4000. Moisture sensitivity level is 1 (Unlimited) for both components.

Q: What is the practical advantage of the lower DC resistance in the substitute part?

A: The Bourns SRR4018-220Y DC resistance of 300mOhm (maximum) compared to the Murata specification of 360mOhm (maximum) results in reduced resistive losses and lower heat generation during operation at equivalent current levels. This provides improved thermal performance and efficiency in power delivery applications.