Equivalent & Substitute Parts for 26S3R3C

Part Overview

The 26S3R3C is a 3.3 µH shielded wirewound inductor manufactured by Murata Power Solutions Inc., rated for 4.6 A continuous current with a maximum DC resistance of 33mOhm. This component is designed for surface mount applications in the 2600 series and maintains active product status with full RoHS3 compliance. Substitute parts are identified when equivalent inductance values, current ratings, and shielding characteristics align within acceptable operating parameters, enabling design flexibility and supply chain continuity.

Substiute Parts

26S3R3C

Murata Power Solutions Inc.In Stock: 86026S3R3C Datasheet

Current PartRFQ

SRR1240-3R3Y

Bourns Inc.In Stock: 2335SRR1240-3R3Y Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 26S3R3C is determined by the following critical parameters:

• Inductance Value: Must match 3.3 µH to maintain circuit performance
• Current Rating: Substitute must meet or exceed 4.6 A to handle design load requirements
• DC Resistance: Lower or equal DCR values are acceptable; higher values may increase power dissipation
• Shielding: Shielded construction required to maintain electromagnetic compatibility
• Mounting Type: Surface mount configuration mandatory for PCB integration
• Operating Temperature: Must support the -40°C to 85°C range or broader
• Compliance: RoHS3 and REACH compliance required for regulatory alignment

The SRR1240-3R3Y from Bourns Inc. qualifies as a substitute based on matching inductance (3.3 µH), exceeding current rating (6.8 A vs. 4.6 A), providing superior DC resistance (15mOhm vs. 33mOhm), maintaining shielded construction, and meeting all compliance requirements.

Parameter Comparison

Engineering Selection Recommendations

The SRR1240-3R3Y qualifies as a direct substitute for the 26S3R3C based on electrical parameter alignment and regulatory compliance. Both components maintain ROHS3 compliance, REACH unaffected status, and identical moisture sensitivity ratings. The substitute provides performance advantages including higher current rating (6.8 A vs. 4.6 A), lower DC resistance (15mOhm vs. 33mOhm), and extended operating temperature range (-40°C to 125°C vs. -40°C to 85°C). Physical dimensions differ; the substitute features a square footprint (12.50mm x 12.50mm) with reduced height (4.50mm), requiring PCB layout verification before implementation. Both components are active products with established supply availability.

Frequently Asked Questions (FAQ)

Q: Can the SRR1240-3R3Y replace the 26S3R3C in all applications?

A: Electrical substitution is valid when inductance value (3.3 µH), current rating requirement (4.6 A), and shielding specification are met. Physical footprint differences require PCB layout confirmation. The substitute's lower DC resistance and higher current rating provide design margin.

Q: What are the key differences between these inductors?

A: The primary differences are core construction (Murata uses standard wirewound; Bourns uses drum core wirewound), physical dimensions (rectangular vs. square footprint), and performance characteristics (Bourns provides lower resistance and higher current capacity). Electrical performance at the specified 3.3 µH inductance is equivalent.

Q: Are both parts compliant with current regulations?

A: Yes. Both the 26S3R3C and SRR1240-3R3Y maintain ROHS3 compliance, REACH unaffected status, and MSL 1 rating, meeting current regulatory requirements for industrial and commercial applications.

Q: Does the footprint difference affect circuit performance?

A: Footprint differences do not affect electrical performance but require PCB layout modification. The substitute's square footprint and lower profile may offer space optimization benefits in some designs.

Q: What is the moisture sensitivity implication?

A: Both components carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions. Standard handling and storage procedures apply without special environmental controls.