Murata Power Solutions 41220C Equivalent & Substitute Parts

Part Overview

The Murata Power Solutions 41220C is a 22 µH unshielded toroidal inductor rated for 3.3 A with a maximum DC resistance of 33mOhm, designed for surface mount applications in the 4100 series. This component is classified as obsolete, making identification of suitable equivalent parts essential for ongoing system support and new design implementations. The part operates across a temperature range of -40°C to 85°C and is RoHS compliant with unlimited moisture sensitivity rating.

Substiute Parts

41220C

Murata Power Solutions Inc.In Stock: 91141220C Datasheet

Current PartRFQ

PL8122NL

iNRCORE, LLCIn Stock: 1105PL8122NL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 41220C is determined by the following critical parameters:

• Inductance Value: 22 µH nominal (tolerance range acceptable within standard engineering margins)
• Current Rating: Minimum 3.3 A to maintain circuit performance
• DC Resistance: Maximum 33mOhm to ensure thermal and efficiency specifications
• Type & Shielding: Toroidal, unshielded configuration
• Mounting Type: Surface mount compatibility
• Temperature Range: Must support -40°C to 85°C minimum
• Compliance: RoHS compliance required

The PL8122NL from iNRCORE, LLC meets the core functional requirements as an unshielded toroidal surface mount inductor with comparable inductance and operating characteristics, though with parameter variations noted in the comparison table below.

Parameter Comparison

Engineering Selection Recommendations

The PL8122NL is an active production component from iNRCORE, LLC, providing continuity for applications previously using the obsolete 41220C. Both parts are RoHS compliant and feature identical toroidal unshielded construction with surface mount configuration.

Key considerations for selection:

• The PL8122NL operates across an extended temperature range (-55°C to 130°C) compared to the 41220C (-40°C to 85°C), providing broader environmental coverage.
• The inductance values are closely matched at 22 µH and 21.9 µH respectively, with negligible functional difference at the 10 kHz test frequency.
• The PL8122NL current rating of 2.7 A is lower than the 41220C specification of 3.3 A; circuit designs operating near maximum current limits require thermal and performance validation.
• DC resistance of the PL8122NL (72mOhm Max) is higher than the 41220C (33mOhm Max), resulting in increased power dissipation in high-current applications.
• Both components carry unlimited moisture sensitivity rating (MSL 1).

Frequently Asked Questions (FAQ)

Q: Can the PL8122NL directly replace the 41220C in all applications?

A: The PL8122NL is functionally equivalent for inductance and mounting characteristics. However, applications operating at or near 3.3 A current levels or with strict thermal budgets require circuit validation due to the lower current rating (2.7 A) and higher DC resistance (72mOhm vs. 33mOhm) of the substitute part.

Q: What is the significance of the inductance difference between 22 µH and 21.9 µH?

A: The 0.1 µH difference represents a 0.45% variance, which is within typical engineering tolerance for toroidal inductor applications and does not constitute a functional limitation for standard circuit designs.

Q: Are there packaging differences between these parts?

A: Both parts use nonstandard package configurations for toroidal inductors. The PL8122NL is supplied in tube packaging, while the 41220C packaging specification is not detailed. Verify mechanical fit and PCB footprint compatibility for your specific application.

Q: Why is the operating temperature range different?

A: The PL8122NL supports -55°C to 130°C, exceeding the 41220C range of -40°C to 85°C. This extended range does not affect substitution for applications within the original 41220C temperature specification.

Q: Are both parts RoHS compliant?

A: Yes. The 41220C is RoHS compliant, and the PL8122NL is ROHS3 compliant, meeting current regulatory requirements for both legacy and new designs.