Murata Power Solutions 23101C Equivalent & Substitute Parts

Part Overview

The Murata Power Solutions 23101C is a 100 µH unshielded wirewound inductor rated for 430 mA continuous current with a maximum DC resistance of 1.281 Ohm. This component operates across the temperature range of -40°C to 85°C and is designed for surface mount applications in nonstandard package configurations. The part maintains Active product status and is ROHS3 compliant, making it suitable for modern electronic assemblies requiring fixed inductance filtering and energy storage applications.

Equivalent and substitute parts are identified to provide design flexibility, support supply chain continuity, and accommodate varying procurement requirements while maintaining functional compatibility within specified electrical parameters.

Substiute Parts

23101C

Murata Power Solutions Inc.In Stock: 100623101C Datasheet

Current PartRFQ

SDR0403-101KL

Bourns Inc.In Stock: 3429SDR0403-101KL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Murata 23101C is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 100 µH (exact match required)
• Mounting type: Surface Mount
• Package footprint: 0.177" L x 0.157" W (4.50mm x 4.00mm)
• Shielding configuration: Unshielded

Secondary Compatibility Parameters:

• Current rating: Minimum 430 mA (equal or greater)
• DC resistance: Maximum 1.281 Ohm (equal or lower preferred)
• Operating temperature range: Must encompass or exceed -40°C to 85°C
• Regulatory compliance: ROHS3 and REACH status alignment

The Bourns SDR0403-101KL qualifies as a direct substitute based on matching inductance, identical footprint dimensions, surface mount configuration, and unshielded design. While the SDR0403-101KL exhibits a lower current rating (350 mA versus 430 mA) and higher DC resistance (1.9 Ohm versus 1.281 Ohm), it remains functionally compatible for applications where the 23101C operates below its maximum current specification.

Parameter Comparison

Engineering Selection Recommendations

Both the Murata 23101C and Bourns SDR0403-101KL maintain Active product status with full ROHS3 compliance and REACH unaffected designation, ensuring regulatory alignment for current and future applications.

The Murata 23101C is the primary selection when maximum current capacity (430 mA) and minimum DC resistance (1.281 Ohm) are required within the specified operating temperature range of -40°C to 85°C.

The Bourns SDR0403-101KL serves as a functional substitute for applications operating at or below 350 mA continuous current. The extended operating temperature range (-40°C to 125°C) provides additional thermal margin in high-temperature environments. The increased DC resistance (1.9 Ohm) and lower saturation current (510 mA) must be evaluated against circuit power dissipation and current handling requirements.

Both components share identical footprint dimensions and surface mount configuration, enabling direct PCB layout compatibility without redesign.

Frequently Asked Questions (FAQ)

Q: Can the Bourns SDR0403-101KL replace the Murata 23101C in all applications?

A: The SDR0403-101KL is compatible with applications where circuit current remains at or below 350 mA. Applications requiring the full 430 mA rating of the 23101C must use the original part or verify that actual operating current does not exceed the substitute's rating.

Q: What is the impact of the higher DC resistance in the SDR0403-101KL?

A: The SDR0403-101KL exhibits 1.9 Ohm maximum DC resistance compared to 1.281 Ohm for the 23101C. At equivalent current levels, this results in increased power dissipation (P = I²R). Circuit thermal analysis is required to confirm acceptable operating conditions.

Q: Are the package dimensions identical between these parts?

A: Both components share the same footprint (0.177" L x 0.157" W / 4.50mm x 4.00mm). The seated height differs slightly: 23101C at 0.126" (3.20mm) and SDR0403-101KL at 0.138" (3.50mm). PCB clearance and component stacking must be verified for the substitute.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both the Murata 23101C and Bourns SDR0403-101KL are ROHS3 compliant and REACH unaffected, meeting current environmental and hazardous substance regulations.

Q: What is the difference in operating temperature ranges?

A: The Murata 23101C operates from -40°C to 85°C, while the Bourns SDR0403-101KL extends to -40°C to 125°C. For applications within the 23101C range, both parts are suitable. For high-temperature applications exceeding 85°C, only the SDR0403-101KL is rated.