Murata Power Solutions 41150C Equivalent & Substitute Parts

Part Overview

The Murata Power Solutions 41150C is a 15 µH unshielded toroidal surface mount inductor rated for 4 A continuous current with a maximum DC resistance of 28 mOhm. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and production continuity. The part operates across an industrial temperature range of -40°C to 85°C and is RoHS compliant with unlimited moisture sensitivity rating.

Substiute Parts

41150C

Murata Power Solutions Inc.In Stock: 75241150C Datasheet

Current PartRFQ

P0846SNLT

Pulse ElectronicsIn Stock: 1935P0846SNLT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 41150C is determined by the following critical parameters:

Primary Electrical Criteria:

• Inductance value: 15 µH (exact match required)
• Current rating: Minimum 4 A (equal or higher acceptable)
• DC resistance: Maximum 28 mOhm (lower or equal acceptable)

Physical & Mechanical Criteria:

• Toroidal inductor type (core geometry match)
• Surface mount configuration
• Nonstandard package footprint compatibility
• Physical dimensions within tolerance for PCB placement

Environmental & Compliance Criteria:

• Operating temperature range: Minimum -40°C to 85°C coverage
• RoHS compliance status
• Moisture sensitivity level: MSL 1 (unlimited)

The Pulse Electronics P0846SNLT qualifies as a substitute based on matching inductance (15 µH), exceeding current rating (5 A vs. 4 A), meeting DC resistance specification (27 mOhm vs. 28 mOhm max), and maintaining toroidal surface mount configuration with compatible physical dimensions.

Parameter Comparison

Engineering Selection Recommendations

The Pulse Electronics P0846SNLT is a qualified substitute for the obsolete Murata 41150C based on electrical and mechanical parameter alignment. The substitute part meets or exceeds all critical specifications: matching inductance value, providing higher current capacity (5 A vs. 4 A), achieving lower DC resistance (27 mOhm vs. 28 mOhm maximum), and maintaining compatible physical dimensions for PCB integration.

Both parts maintain RoHS compliance and unlimited moisture sensitivity rating, ensuring regulatory and environmental consistency. The P0846SNLT operates across an extended temperature range (-40°C to 130°C), providing additional thermal margin beyond the original specification (-40°C to 85°C).

The primary design consideration is the transition from unshielded to shielded construction in the substitute part. This change reduces electromagnetic interference emission and susceptibility, which is generally beneficial in most applications. PCB layout verification is recommended to confirm that the slightly larger footprint (0.700" x 0.670" vs. 0.690" x 0.660") accommodates existing placement constraints.

Frequently Asked Questions (FAQ)

Q: Can the P0846SNLT directly replace the 41150C in existing designs?

A: Yes, provided PCB layout accommodates the marginally larger footprint dimensions (0.010" increase in length and width). The electrical performance and mounting configuration are compatible.

Q: What is the significance of the shielded vs. unshielded difference?

A: The P0846SNLT shielded construction reduces radiated electromagnetic interference compared to the unshielded 41150C. This is advantageous in noise-sensitive applications and does not negatively impact functionality in standard applications.

Q: Are there packaging differences between these parts?

A: The 41150C is supplied in standard packaging, while the P0846SNLT is supplied in Tape & Reel (TR) format. Both use nonstandard package cases. Verify packaging requirements for your procurement and assembly processes.

Q: Does the higher current rating of the P0846SNLT affect circuit performance?

A: No. The 5 A rating of the substitute part exceeds the 4 A requirement of the original design. The inductor will operate within safe margins with no performance degradation.

Q: What is the tolerance specification for the P0846SNLT inductance?

A: The P0846SNLT is specified with ±20% inductance tolerance. Verify that this tolerance is acceptable for your circuit design requirements.

Q: Are both parts compliant with current environmental regulations?

A: Yes. The 41150C is RoHS compliant, and the P0846SNLT is ROHS3 compliant. Both parts are REACH unaffected and carry EAR99 export classification.