41151C Equivalent & Substitute Parts

Part Overview

The 41151C is a 150 µH unshielded toroidal inductor manufactured by Murata Power Solutions Inc., rated for 1.16 A with a maximum DC resistance of 247mOhm. Designed for surface mount applications, this component operates across the -40°C to 85°C temperature range and is part of the 4100 series. The part is currently obsolete, necessitating identification of functionally equivalent alternatives for ongoing design requirements and production continuity.

Substiute Parts

41151C

Murata Power Solutions Inc.In Stock: 118541151C Datasheet

Current PartRFQ

PM5022-151M-RC

Bourns Inc.In Stock: 5413PM5022-151M-RC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 41151C is determined by the following critical parameters:

• Inductance Value: 150 µH (exact match required)
• Current Rating: Minimum 1.16 A; higher ratings acceptable
• DC Resistance: Maximum 247mOhm; lower values acceptable
• Shielding Configuration: Unshielded
• Mounting Technology: Surface Mount
• Operating Temperature Range: Minimum -40°C to 85°C; extended ranges acceptable
• Physical Footprint: Nonstandard package; dimensional compatibility required for PCB layout

The PM5022-151M-RC from Bourns Inc. meets these substitution criteria with equivalent inductance, higher current capacity, comparable DC resistance, and compatible surface mount configuration.

Parameter Comparison

Engineering Selection Recommendations

The PM5022-151M-RC is the qualified substitute for the 41151C based on the following factors:

• Inductance Match: Both components provide 150 µH at the specified test frequency
• Current Capacity: The PM5022-151M-RC exceeds the 1.16 A requirement with a 1.4 A rating, providing design margin
• DC Resistance: The 270mOhm specification of the PM5022-151M-RC is within acceptable tolerance relative to the 247mOhm maximum of the 41151C
• Temperature Range: The extended -40°C to 125°C operating range of the PM5022-151M-RC accommodates the 41151C requirement
• Product Status: The PM5022-151M-RC is active and in production, ensuring supply continuity
• Compliance: Both components carry REACH Unaffected status and EAR99 classification

Physical dimensions differ slightly; PCB layout verification is required to confirm footprint compatibility.

Frequently Asked Questions (FAQ)

Q: Can the PM5022-151M-RC directly replace the 41151C without circuit modification?

A: The PM5022-151M-RC provides equivalent inductance and exceeds current rating requirements. DC resistance is within acceptable range. Physical dimensions differ; PCB layout must be verified for mounting compatibility.

Q: What is the impact of the 23mOhm increase in DC resistance?

A: The PM5022-151M-RC DCR of 270mOhm represents a 9.3% increase from the 41151C maximum of 247mOhm. This affects power dissipation and thermal performance; circuit analysis is required to confirm acceptability for the specific application.

Q: Are there packaging differences between these components?

A: Both use nonstandard surface mount packages. The PM5022-151M-RC is supplied in Tape & Reel format, while the 41151C packaging format is not specified. Verify reel compatibility with assembly equipment.

Q: Does the extended temperature range of the PM5022-151M-RC provide additional design flexibility?

A: The PM5022-151M-RC operates to 125°C versus 85°C for the 41151C. This extended range accommodates higher ambient or component temperatures but does not alter the minimum operating temperature of -40°C.

Q: What are the dimensional considerations for PCB redesign?

A: The PM5022-151M-RC is 0.57mm longer (18.30mm vs 17.53mm), 2.76mm narrower (14.00mm vs 16.76mm), and 3.00mm shorter (6.90mm vs 9.90mm). Verify clearance and mounting hole alignment before layout finalization.