Murata Power Solutions 41101C Equivalent & Substitute Parts

Part Overview

The Murata Power Solutions 41101C is a 100 µH unshielded toroidal inductor rated for 1.47 A with a maximum DC resistance of 158mOhm. This surface mount component operates across the temperature range of -40°C to 85°C and is classified as obsolete. Due to its obsolete status and limited current rating, identifying equivalent substitute parts is essential for ongoing design support and production continuity.

Substiute Parts

41101C

Murata Power Solutions Inc.In Stock: 82441101C Datasheet

Current PartRFQ

PTHF100R-50SM

API Delevan Inc.In Stock: 684PTHF100R-50SM Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 41101C is determined by the following critical parameters:

• Inductance Value: Must be 100 µH to maintain circuit functionality
• Current Rating: Substitute must meet or exceed 1.47 A minimum requirement
• DC Resistance: Lower DCR values improve efficiency; 158mOhm is the maximum acceptable threshold
• Mounting Type: Surface mount configuration required for PCB compatibility
• Toroidal Type: Core geometry must remain toroidal for electromagnetic performance
• Temperature Range: Operating temperature must support -40°C to 85°C minimum

The API Delevan PTHF100R-50SM meets these substitution criteria with superior electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The PTHF100R-50SM from API Delevan is the qualified substitute for the obsolete 41101C. Selection is based on the following factors:

• Compliance: Both parts maintain RoHS and REACH compliance; the substitute achieves ROHS3 status, meeting current regulatory requirements
• Electrical Performance: The substitute exceeds the current rating requirement (3.14 A vs. 1.47 A) and provides superior DC resistance (60mOhm vs. 158mOhm), resulting in lower power dissipation
• Physical Compatibility: Dimensional differences are minimal (0.010" length, 0.010" width, 0.010" height), permitting direct PCB layout substitution with negligible impact
• Product Status: The substitute is active and in production, ensuring long-term availability and supply chain stability
• Shielding Enhancement: The shielded design of the substitute provides improved electromagnetic isolation compared to the unshielded original

Frequently Asked Questions (FAQ)

Q: Can the PTHF100R-50SM directly replace the 41101C without PCB modifications?

A: Yes. The dimensional differences are within typical PCB layout tolerances. Verify footprint compatibility with your PCB design tool before production release.

Q: What is the impact of the shielded design in the substitute part?

A: Shielding reduces electromagnetic interference emission and susceptibility. This is a functional improvement over the unshielded original and does not create compatibility issues.

Q: Does the lower DC resistance of the substitute affect circuit operation?

A: No. Lower DC resistance improves efficiency by reducing I²R losses. This is a performance enhancement and maintains full backward compatibility.

Q: Are there any temperature range limitations with the substitute?

A: The substitute does not specify an operating temperature range in the provided data. Verify temperature performance requirements against your application specifications before final selection.

Q: What is the significance of the higher current saturation rating in the substitute?

A: The substitute's 3.14 A current rating and 1.5 A saturation current provide design margin above the original 1.47 A requirement, reducing risk of inductor saturation in your circuit.

Q: Are both parts compatible with the same supply chain and procurement processes?

A: Yes. Both parts share identical ECCN, HTSUS, MSL, and REACH classifications, ensuring compatibility with standard procurement and logistics workflows.