Murata Power Solutions 34103C Equivalent & Substitute Parts

Part Overview

The Murata Power Solutions 34103C is a 10 µH shielded wirewound inductor rated for 800 mA continuous current with a maximum DC resistance of 200mOhm. This surface mount component operates across the industrial temperature range of -40°C to 125°C and is classified as Active product status. 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

34103C

Murata Power Solutions Inc.In Stock: 117534103C Datasheet

Current PartRFQ

SRR4018-100Y

Bourns Inc.In Stock: 2696SRR4018-100Y Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 34103C is determined by the following critical parameters:

• Inductance Value: Must be 10 µH to maintain circuit performance
• Shielding Type: Must be shielded to prevent electromagnetic interference
• Mounting Configuration: Must be surface mount compatible
• Current Handling: Substitute must support minimum 800 mA operation
• DC Resistance: Lower or equal DCR values are acceptable; higher values may impact efficiency
• Temperature Range: Must cover -40°C to 125°C minimum
• Regulatory Compliance: ROHS3 compliance required

The Bourns SRR4018-100Y meets these substitution criteria with higher current capacity (1.3 A) and improved DC resistance characteristics (150mOhm Max), providing enhanced performance margin within the same package class and electrical specifications.

Parameter Comparison

Engineering Selection Recommendations

Both the Murata 34103C and Bourns SRR4018-100Y are Active status products with full ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for industrial and commercial applications. The Bourns SRR4018-100Y provides superior electrical performance through higher current capacity (1.3 A versus 800 mA) and lower DC resistance (150mOhm versus 200mOhm), resulting in reduced power dissipation and thermal stress in the application circuit. Both components maintain identical operating temperature ranges and moisture sensitivity classifications. Selection between these parts should be based on specific application current requirements, thermal budget constraints, and PCB layout considerations related to package dimensions.

Frequently Asked Questions (FAQ)

Q: Can the Bourns SRR4018-100Y directly replace the Murata 34103C?

A: Yes, the SRR4018-100Y meets all substitution criteria for the 34103C. Both components provide 10 µH inductance with shielded construction, surface mount configuration, and identical operating temperature ranges. The Bourns part offers higher current capacity and lower DC resistance.

Q: What are the package dimension differences between these parts?

A: The Murata 34103C measures 0.205" L x 0.205" W (5.20mm x 5.20mm) with 0.079" (2.00mm) seated height. The Bourns SRR4018-100Y measures 0.189" L x 0.189" W (4.80mm x 4.80mm) with identical 0.079" (2.00mm) seated height. Both use nonstandard and 1919 (4848 Metric) package classifications respectively, requiring PCB footprint verification.

Q: Are there inductance tolerance differences that affect circuit design?

A: The Murata 34103C specifies ±20% inductance tolerance, while the Bourns SRR4018-100Y specifies ±30%. For applications requiring tighter inductance control, the Murata part provides superior tolerance performance. Circuit designs must account for the wider tolerance band of the Bourns substitute.

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

A: Yes. Both the Murata 34103C and Bourns SRR4018-100Y are ROHS3 compliant, REACH unaffected, and classified under identical ECCN (EAR99) and HTSUS (8504.50.4000) codes with MSL 1 (Unlimited) moisture sensitivity ratings.

Q: What is the significance of the lower DC resistance in the Bourns part?

A: The Bourns SRR4018-100Y DC resistance of 150mOhm Max is 25% lower than the Murata 34103C at 200mOhm Max. This reduction decreases resistive power loss (I²R) in the inductor, resulting in lower operating temperature and improved efficiency, particularly in high-current applications approaching the 800 mA rating.