Murata 34L103C Equivalent & Substitute Parts

Part Overview

The Murata 34L103C is a 10 µH shielded wirewound inductor rated for 660 mA with a maximum DC resistance of 325mOhm, designed for surface mount applications in the nonstandard package format. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The part operates across the industrial temperature range of -40°C to 125°C and meets RoHS compliance standards.

Substiute Parts

34L103C

Murata Power Solutions Inc.In Stock: 92534L103C Datasheet

Current PartRFQ

SRR4011-100YL

Bourns Inc.In Stock: 6268SRR4011-100YL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Murata 34L103C is determined by the following critical parameters:

• Inductance Value: Must be 10 µH to maintain circuit functionality
• Shielding Type: Must be shielded to preserve electromagnetic isolation characteristics
• Mounting Type: Must be surface mount to ensure PCB compatibility
• Operating Temperature Range: Must support -40°C to 125°C minimum
• Current Handling Capability: Must accommodate or exceed the 660 mA rating
• DC Resistance: Lower or equivalent DCR values are acceptable for substitution
• Compliance Standards: Must maintain RoHS and REACH compliance status

The Bourns SRR4011-100YL meets these substitution criteria with enhanced electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The Bourns SRR4011-100YL is a direct functional substitute for the obsolete Murata 34L103C. Selection is based on the following engineering factors:

Product Status: The Murata 34L103C is obsolete, necessitating component substitution. The Bourns SRR4011-100YL maintains active product status with established supply chain availability.

Electrical Performance: The substitute part provides superior current handling capacity (1 A versus 660 mA) and reduced DC resistance (240mOhm versus 325mOhm maximum), resulting in lower power dissipation and improved thermal performance in the application circuit.

Compliance and Certifications: Both components maintain unlimited moisture sensitivity level (MSL 1) and equivalent operating temperature ranges. The Bourns part achieves ROHS3 compliance, exceeding the RoHS compliance of the original part. Both components are REACH unaffected and classified under identical HTSUS and ECCN codes.

Physical Compatibility: The substitute part features a smaller footprint (4.80mm x 4.80mm versus 5.20mm x 5.20mm) with negligible height variation (1.30mm versus 1.20mm). PCB layout verification is required to confirm physical fit within existing design constraints.

Frequently Asked Questions (FAQ)

Q: Can the Bourns SRR4011-100YL directly replace the Murata 34L103C in existing designs?

A: Yes, the Bourns part meets all critical substitution parameters: identical 10 µH inductance, shielded construction, surface mount configuration, and matching operating temperature range. The smaller footprint requires PCB layout verification to confirm physical fit.

Q: What are the advantages of using the Bourns substitute?

A: The SRR4011-100YL provides higher current rating (1 A versus 660 mA), lower DC resistance (240mOhm versus 325mOhm), and active product status with established supply availability. These characteristics result in reduced power loss and improved circuit reliability.

Q: Are there any electrical parameter differences that affect circuit performance?

A: The substitute part exhibits lower DC resistance, which reduces resistive losses in the inductor. The higher current rating provides additional design margin. Both components operate across the same temperature range and maintain equivalent compliance certifications.

Q: What packaging format is available for the Bourns substitute?

A: The Bourns SRR4011-100YL is supplied in Tape & Reel (TR) packaging format, suitable for automated assembly processes.

Q: Are both components RoHS compliant?

A: Yes. The Murata 34L103C is RoHS compliant, and the Bourns SRR4011-100YL achieves ROHS3 compliance, which represents an enhanced compliance standard.