Murata 34L104C Equivalent & Substitute Parts

Part Overview

The Murata 34L104C is a 100 µH shielded wirewound inductor rated for 240 mA with a maximum DC resistance of 3.33Ohm, designed for surface mount applications in the 3400L series. This component is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. The part operates across the industrial temperature range of -40°C to 125°C and meets RoHS compliance requirements.

Substiute Parts

34L104C

Murata Power Solutions Inc.In Stock: 99334L104C Datasheet

Current PartRFQ

SRR4011-101YL

Bourns Inc.In Stock: 2200SRR4011-101YL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Murata 34L104C is based on the following critical parameters that must be maintained or exceeded:

• Inductance Value: 100 µH (exact match required)
• Current Rating: Minimum 240 mA (substitute must support or exceed this rating)
• DC Resistance: Maximum 3.33Ohm (lower values acceptable; higher values may impact circuit performance)
• Shielding: Shielded construction required
• Mounting Type: Surface mount configuration
• Operating Temperature Range: -40°C ~ 125°C (minimum requirement)
• Physical Footprint: Comparable dimensions to ensure PCB compatibility

The Bourns SRR4011-101YL meets these substitution criteria with improved electrical characteristics and active product status.

Parameter Comparison

Engineering Selection Recommendations

The Bourns SRR4011-101YL is a direct functional substitute for the obsolete Murata 34L104C. Selection is based on the following factors:

• Product Status: The Murata 34L104C is obsolete; the Bourns SRR4011-101YL is active and maintains long-term availability.
• Electrical Performance: The substitute meets or exceeds all critical electrical parameters, including current rating (310 mA vs. 240 mA) and DC resistance (2.4Ohm vs. 3.33Ohm maximum).
• Compliance: Both components maintain RoHS compliance and MSL Level 1 rating, ensuring compatibility with modern manufacturing and storage requirements.
• Physical Compatibility: Footprint dimensions are comparable, with the substitute slightly smaller in length and width but marginally taller, requiring verification of PCB layout constraints.
• Thermal Performance: Both components operate across the identical temperature range of -40°C to 125°C.

Frequently Asked Questions (FAQ)

Q: Can the Bourns SRR4011-101YL be used as a direct replacement for the Murata 34L104C?

A: Yes. The SRR4011-101YL meets all critical substitution parameters: identical 100 µH inductance, equal or superior current rating and DC resistance, matching shielding and mounting type, and identical operating temperature range. Physical dimensions are comparable and suitable for most PCB layouts.

Q: What are the key differences between these two inductors?

A: The primary differences are product status (obsolete vs. active), DC resistance (3.33Ohm vs. 2.4Ohm), current rating (240 mA vs. 310 mA), and core material (unspecified vs. ferrite drum core). The Bourns part offers improved electrical performance with lower losses and higher current capacity.

Q: Are there packaging differences between these parts?

A: The Murata 34L104C packaging is listed as nonstandard. The Bourns SRR4011-101YL is supplied in Tape & Reel (TR) format, which is standard for high-volume surface mount assembly. Both use identical MSL Level 1 moisture sensitivity classification.

Q: Will the slightly different physical dimensions affect PCB compatibility?

A: The Bourns SRR4011-101YL is 0.016" shorter in length and width but 0.004" taller in height compared to the Murata part. PCB layout verification is required to confirm clearance and mounting compatibility, particularly for height-constrained applications.

Q: Are both components RoHS compliant?

A: Yes. The Murata 34L104C is RoHS Compliant, and the Bourns SRR4011-101YL is ROHS3 Compliant, ensuring compatibility with current environmental and regulatory requirements.