Murata Power Solutions 41100C Equivalent & Substitute Parts

Part Overview

The Murata Power Solutions 41100C is a 10 µH unshielded toroidal surface mount inductor rated for 4.7 A continuous current with a maximum DC resistance of 24mOhm. 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

41100C

Murata Power Solutions Inc.In Stock: 98741100C Datasheet

Current PartRFQ

P0847SNL

Pulse ElectronicsIn Stock: 1898P0847SNL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 41100C is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Inductance value: 10 µH (exact match required)
• Current rating: minimum 4.7 A (equal or higher acceptable)
• DC resistance: maximum 24mOhm (equal or lower acceptable)
• Operating temperature range: minimum -40°C to 85°C coverage required

Mechanical Compatibility Criteria:

• Mounting type: Surface Mount (required)
• Package type: Nonstandard toroidal form factor
• Physical dimensions: compatible with 0.690" L x 0.660" W footprint and 0.390" height envelope

The Pulse Electronics P0847SNL meets these substitution criteria with equivalent inductance, higher current rating (5 A vs 4.7 A), comparable DC resistance (25mOhm vs 24mOhm), and extended operating temperature range (-40°C to 130°C). Physical dimensions remain within acceptable tolerance for board-level integration.

Parameter Comparison

Engineering Selection Recommendations

The Pulse Electronics P0847SNL is the qualified substitute for the obsolete Murata 41100C based on the following factors:

Electrical Performance: The P0847SNL delivers equivalent inductance at 10 µH with a higher current rating (5 A versus 4.7 A), providing design margin. DC resistance of 25mOhm is within acceptable tolerance relative to the 24mOhm maximum specification of the original part.

Thermal Performance: The extended operating temperature range of -40°C to 130°C exceeds the original -40°C to 85°C specification, supporting applications across broader environmental conditions.

Compliance Status: Both components maintain RoHS compliance. The P0847SNL carries ROHS3 certification, meeting current regulatory requirements. Both parts are REACH unaffected and carry EAR99 classification.

Physical Integration: Dimensional differences are minimal. The P0847SNL footprint (0.700" L x 0.670" W) represents a 1.4% and 1.5% increase respectively over the original part, with height remaining effectively identical at 0.390". These variations remain within standard PCB layout tolerances for nonstandard toroidal packages.

Availability: The P0847SNL is actively manufactured and stocked, ensuring supply chain continuity for production and field service applications.

Frequently Asked Questions (FAQ)

Q: Can the P0847SNL directly replace the 41100C without PCB modification?

A: Physical dimensions are compatible within standard manufacturing tolerances. The P0847SNL footprint is marginally larger (approximately 1.4% in length and 1.5% in width), but remains within the nonstandard toroidal package envelope. PCB layout verification is recommended to confirm clearance with adjacent components.

Q: What is the significance of the shielding difference between the two parts?

A: The 41100C is unshielded while the P0847SNL is shielded. Shielding reduces electromagnetic interference emission and susceptibility. In applications where the original design did not require shielding, the shielded substitute provides equivalent or improved performance without adverse effects.

Q: Are there any current rating implications for substitution?

A: The P0847SNL current rating of 5 A exceeds the 41100C requirement of 4.7 A. This provides additional thermal margin and reduces core saturation risk under peak current conditions. No derating is necessary.

Q: How do the DC resistance specifications compare?

A: The P0847SNL DC resistance of 25mOhm is 1mOhm higher than the 41100C maximum of 24mOhm. This represents a 4.2% increase in resistive loss. For most power distribution and filtering applications, this difference is negligible and does not require circuit redesign.

Q: Is the extended temperature range of the P0847SNL beneficial?

A: The P0847SNL operating range of -40°C to 130°C provides additional thermal headroom compared to the original -40°C to 85°C specification. This supports applications in elevated ambient or high-power environments without component derating.

Q: What packaging format is used for the P0847SNL?

A: The P0847SNL is supplied in tube packaging, suitable for automated assembly processes. Verify compatibility with your production equipment and handling procedures.