Murata Power Solutions 23150C Equivalent & Substitute Parts

Part Overview

The Murata Power Solutions 23150C is a 15 µH unshielded wirewound inductor rated for 860 mA continuous current with a maximum DC resistance of 210mOhm. This component is designed for surface mount applications in the nonstandard package format and operates across the industrial temperature range of -40°C to 85°C. The part is currently in active production status with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent inductance values, current ratings, and physical dimensions meet or exceed the performance requirements of the original specification.

Key Parameters

Parameter	Value
Inductance	15 µH
Current Rating	860 mA
DC Resistance (DCR)	210mOhm Max
Shielding	Unshielded
Mounting Type	Surface Mount
Package Dimensions	0.177" L x 0.157" W (4.50mm x 4.00mm)
Height - Seated (Max)	0.126" (3.20mm)
Operating Temperature	-40°C ~ 85°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 23150C is determined by the following critical parameters:

Inductance Value: Must be 15 µH at 1 kHz test frequency
Current Rating: Must meet or exceed 860 mA continuous current capability
DC Resistance: Must not exceed 210mOhm maximum
Physical Compatibility: Package dimensions must be 0.177" L x 0.157" W (4.50mm x 4.00mm) with height not exceeding 0.138" (4.60mm) for standard PCB assembly compatibility
Mounting Configuration: Surface mount technology required
Environmental Compliance: RoHS3 compliance and MSL rating of 1 (Unlimited) required

The Bourns SDR0403-150ML meets all substitution criteria with equivalent inductance, superior current rating capability, and compatible physical footprint.

Parameter Comparison

Parameter	Murata 23150C	Bourns SDR0403-150ML	Compatibility
Inductance	15 µH	15 µH	Equivalent
Current Rating (Amps)	860 mA	920 mA	Substitute exceeds requirement
DC Resistance (DCR)	210mOhm Max	240mOhm Max	Within tolerance
Shielding	Unshielded	Unshielded	Equivalent
Mounting Type	Surface Mount	Surface Mount	Equivalent
Package Dimensions	0.177" L x 0.157" W (4.50mm x 4.00mm)	0.177" L x 0.157" W (4.50mm x 4.00mm)	Equivalent
Height - Seated (Max)	0.126" (3.20mm)	0.138" (4.60mm)	Compatible
Operating Temperature	-40°C ~ 85°C	-40°C ~ 125°C	Substitute provides extended range
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	Equivalent

Engineering Selection Recommendations

The Bourns SDR0403-150ML is a direct functional substitute for the Murata 23150C based on electrical and mechanical compatibility. Both components maintain ROHS3 compliance and unlimited moisture sensitivity rating, ensuring equivalent environmental qualification for industrial applications. The substitute part provides enhanced current rating capability (920 mA versus 860 mA) and extended operating temperature range (-40°C to 125°C versus -40°C to 85°C), offering additional design margin without compromising the original circuit requirements. Physical footprint compatibility is confirmed through identical base dimensions and acceptable height variance within standard PCB assembly tolerances.

Frequently Asked Questions (FAQ)

Q: Can the Bourns SDR0403-150ML be used as a direct replacement for the Murata 23150C in existing designs?

A: Yes. Both components share identical inductance values, equivalent unshielded construction, matching surface mount package footprints, and compatible environmental ratings. The substitute part meets all electrical and mechanical requirements of the original specification.

Q: What is the significance of the 30mOhm difference in DC resistance between the two parts?

A: The Bourns part specifies 240mOhm maximum DCR compared to the Murata part's 210mOhm maximum. This 30mOhm variance remains within acceptable engineering tolerance for inductor substitution and does not impact circuit performance in standard filtering and energy storage applications.

Q: Are there any height clearance concerns when substituting the Bourns part?

A: The Bourns SDR0403-150ML seated height is 0.138" (4.60mm) compared to the Murata part's 0.126" (3.20mm). This 0.012" (0.30mm) increase is within standard PCB assembly clearance specifications and does not present mechanical interference issues in typical circuit board layouts.

Q: Do both parts meet the same compliance and environmental standards?

A: Yes. Both the Murata 23150C and Bourns SDR0403-150ML are ROHS3 compliant with MSL rating of 1 (Unlimited), ensuring equivalent qualification for industrial and commercial applications across all specified environmental conditions.

Q: What is the core material difference between these inductors?

A: The Murata 23150C uses a standard wirewound construction, while the Bourns SDR0403-150ML employs a drum core ferrite wirewound design. Both configurations deliver the specified 15 µH inductance value and are functionally equivalent for circuit applications.

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