Murata 26S330C Equivalent & Substitute Parts

Part Overview

The Murata 26S330C is a 33 µH shielded wirewound inductor rated for 1.8 A continuous current with a maximum DC resistance of 100mOhm. 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 electrical performance and mechanical compatibility can be maintained within the specified parameter ranges for this inductance value and current rating category.

Substiute Parts

26S330C

Murata Power Solutions Inc.In Stock: 85226S330C Datasheet

Current PartRFQ

SRR1240-330M

Bourns Inc.In Stock: 2937SRR1240-330M Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 26S330C is determined by the following criteria:

Primary Electrical Parameters:

• Inductance value must be 33 µH
• Current rating must meet or exceed 1.8 A
• DC resistance must not exceed 100mOhm
• Shielding configuration must be shielded

Secondary Compatibility Parameters:

• Surface mount packaging required
• Operating temperature range must encompass -40°C minimum
• RoHS3 compliance mandatory
• Moisture sensitivity level MSL 1 acceptable

The Bourns SRR1240-330M qualifies as a substitute based on matching inductance (33 µH), exceeding current rating (2.3 A vs. 1.8 A), meeting DC resistance specification (97mOhm vs. 100mOhm max), maintaining shielded configuration, and providing equivalent environmental compliance.

Parameter Comparison

Engineering Selection Recommendations

Both the Murata 26S330C and Bourns SRR1240-330M maintain active product status and full RoHS3 compliance. The SRR1240-330M provides enhanced electrical performance with higher current rating (2.3 A), lower DC resistance (97mOhm), and extended operating temperature range (-40°C ~ 125°C). Selection between these parts should be based on application-specific requirements for current capacity, thermal environment, and physical space constraints, as dimensional differences exist between the two packages.

Frequently Asked Questions (FAQ)

Q: Can the Bourns SRR1240-330M directly replace the Murata 26S330C?

A: Electrical substitution is valid based on matching inductance, exceeding current rating, and meeting DC resistance specifications. Physical package dimensions differ; mechanical fit must be verified for the specific application.

Q: What are the critical parameters for 33 µH inductor substitution?

A: Inductance value (33 µH), current rating (minimum 1.8 A), DC resistance (maximum 100mOhm), and shielded configuration are the primary electrical criteria. Surface mount packaging and RoHS3 compliance are mandatory for this product category.

Q: Does the higher current rating of the SRR1240-330M affect compatibility?

A: Higher current rating indicates improved thermal performance and lower saturation risk. This represents an enhancement rather than a compatibility issue for applications requiring 1.8 A or less.

Q: Are there temperature range considerations for substitution?

A: The SRR1240-330M operates to 125°C versus 85°C for the 26S330C. Applications limited to 85°C maximum can use either part. Applications requiring extended temperature operation benefit from the SRR1240-330M specification.

Q: What packaging differences exist between these inductors?

A: The 26S330C measures 12.60mm L x 4.60mm W x 5.90mm H. The SRR1240-330M measures 12.50mm L x 12.50mm W x 4.50mm H. Physical board layout compatibility must be confirmed before substitution.