Murata Power Solutions 23S101C Equivalent & Substitute Parts

Part Overview

The Murata Power Solutions 23S101C is a 100 µH shielded wirewound inductor rated for 370 mA continuous current with a maximum DC resistance of 782 mOhm. This surface mount component operates across the industrial temperature range of -40°C to 85°C and is classified as Active product status with full ROHS3 compliance. Substitute parts are identified when original inventory becomes unavailable or when design requirements permit operation within alternative electrical and mechanical specifications.

Substiute Parts

23S101C

Murata Power SolutionsIn Stock: 85123S101C Datasheet

Current PartRFQ

SRR6603-101ML

Bourns Inc.In Stock: 1210SRR6603-101ML Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 23S101C is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 100 µH (exact match required)
• Shielding configuration: Shielded (electromagnetic containment requirement)
• Mounting technology: Surface Mount (PCB assembly compatibility)
• Package classification: Nonstandard (physical footprint constraint)

Secondary Compatibility Parameters:

• Current rating must equal or exceed 370 mA to support circuit load requirements
• DC resistance must not exceed 782 mOhm to maintain acceptable power dissipation characteristics
• Operating temperature range must encompass or exceed -40°C to 85°C for environmental compatibility
• RoHS3 compliance required for regulatory alignment

The Bourns Inc. SRR6603-101ML satisfies all primary matching criteria with identical inductance, shielding, surface mount configuration, and nonstandard package type. Secondary parameter analysis indicates the SRR6603-101ML operates within acceptable substitution boundaries for most applications, though specific design constraints must be evaluated.

Parameter Comparison

Engineering Selection Recommendations

23S101C Selection Criteria: The Murata 23S101C is the primary component choice when circuit design specifies a 370 mA current rating and 782 mOhm maximum DC resistance. This part maintains Active product status with established supply chain availability and full ROHS3 compliance.

SRR6603-101ML Substitution Criteria: The Bourns SRR6603-101ML serves as an equivalent substitute when circuit operating current does not exceed 300 mA and when the lower DC resistance of 480 mOhm is acceptable or beneficial for power dissipation reduction. The extended operating temperature range (-55°C to 125°C) provides additional thermal margin for applications requiring broader environmental performance. Both components maintain ROHS3 compliance and identical moisture sensitivity classification.

Physical Integration Consideration: PCB layout verification is required prior to substitution due to dimensional differences. The SRR6603-101ML footprint measures 0.260" L x 0.173" W compared to the 23S101C at 0.244" L x 0.220" W, with a height reduction of 0.008". Confirm that available PCB space accommodates the substitute part geometry.

Frequently Asked Questions (FAQ)

Q: Can the SRR6603-101ML replace the 23S101C in all applications?

A: Substitution is valid only when circuit current requirements do not exceed 300 mA. The 23S101C is rated for 370 mA; the SRR6603-101ML is rated for 300 mA. If your circuit operates at or above 300 mA, the 23S101C must be retained. If circuit current is below 300 mA, the SRR6603-101ML is electrically compatible.

Q: What is the impact of the different DC resistance values?

A: The SRR6603-101ML exhibits lower DC resistance (480 mOhm vs. 782 mOhm), resulting in reduced power dissipation and heat generation. This is generally advantageous for thermal performance. Verify that circuit design does not depend on the higher resistance characteristic of the 23S101C.

Q: Are there physical mounting differences?

A: Both components are surface mount with nonstandard packages. Dimensional differences exist: the SRR6603-101ML is slightly larger in length (0.260" vs. 0.244") and narrower in width (0.173" vs. 0.220"), with reduced height (0.118" vs. 0.126"). Confirm PCB layout accommodates these dimensional variations before substitution.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the 23S101C and SRR6603-101ML are ROHS3 compliant, REACH unaffected, and classified as MSL 1 (Unlimited moisture sensitivity). Regulatory and environmental compliance requirements are satisfied by either component.

Q: What is the inductance tolerance for the SRR6603-101ML?

A: The SRR6603-101ML is specified with ±20% inductance tolerance. Confirm that circuit design accommodates this tolerance specification if tighter tolerance is required.

Q: Can the SRR6603-101ML be used in higher temperature environments?

A: Yes. The SRR6603-101ML operates across -55°C to 125°C, compared to the 23S101C range of -40°C to 85°C. For applications requiring operation above 85°C or below -40°C, the SRR6603-101ML provides extended thermal capability.