22 µH Shielded Wirewound Inductor 49220SC Equivalent & Substitute Parts

Part Overview

The Murata Power Solutions 49220SC is a 22 µH shielded wirewound inductor rated for 3.1 A continuous current with a maximum DC resistance of 42 mOhm. This component is classified as Active product status and is ROHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for surface mount applications requiring 22 µH inductance in nonstandard 4-lead packages.

Substiute Parts

49220SC

Murata Power Solutions Inc.In Stock: 108149220SC Datasheet

Current PartRFQ

SRR1280-220M

Bourns Inc.In Stock: 1941SRR1280-220M Datasheet

DirectRFQ

BPSC00131380220M00

Pulse ElectronicsIn Stock: 5529BPSC00131380220M00 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 49220SC are qualified based on the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Inductance value: 22 µH (±20% tolerance maintained)
• Shielding: Shielded construction required
• Mounting: Surface mount technology
• Package configuration: Nonstandard, 4-lead form factor
• DC resistance: Maximum 42 mOhm or lower
• Current rating: Minimum 3.1 A or higher
• Operating temperature: Minimum -40°C to 85°C range coverage
• Compliance: ROHS3 compliant

Two substitute parts meet these criteria: the Bourns SRR1280-220M and the Pulse Electronics BPSC00131380220M00. Both maintain the 22 µH inductance specification, shielded construction, surface mount configuration, and nonstandard package dimensions within acceptable mechanical tolerances.

Parameter Comparison

Engineering Selection Recommendations

Bourns SRR1280-220M: This substitute provides improved electrical performance with lower DC resistance (38.6 mOhm versus 42 mOhm) and higher current rating (4.3 A versus 3.1 A). The extended operating temperature range (-40°C to 125°C) offers broader thermal coverage. All compliance certifications match the original part. Mechanical dimensions are within acceptable tolerance (12.50mm versus 12.20mm footprint).

Pulse Electronics BPSC00131380220M00: This substitute maintains the 22 µH inductance and shielded construction with ROHS3 compliance and REACH unaffected status. DC resistance is 48 mOhm, which exceeds the original specification by 6 mOhm. Operating temperature range extends to 105°C. Mechanical dimensions match the Bourns substitute at 12.50mm footprint.

Both substitutes are Active product status with unlimited moisture sensitivity rating and maintain all required compliance certifications.

Frequently Asked Questions (FAQ)

Q: Can the SRR1280-220M replace the 49220SC in all applications? A: The SRR1280-220M meets all primary substitution criteria: 22 µH inductance, shielded construction, surface mount configuration, and nonstandard package compatibility. The lower DC resistance and higher current rating provide equivalent or improved performance. Mechanical dimensions differ by 0.3mm in length and width, which is acceptable for nonstandard packages with 0.315" maximum seated height on both parts.

Q: What is the impact of the BPSC00131380220M00's higher DC resistance? A: The BPSC00131380220M00 has 48 mOhm maximum DCR compared to the original 42 mOhm specification, representing a 6 mOhm increase. This affects power dissipation and thermal performance in high-current applications. Selection depends on circuit requirements for current handling and thermal tolerance.

Q: Are all three parts mechanically compatible with the same PCB footprint? A: The 49220SC measures 12.20mm x 12.20mm, while both substitutes measure 12.50mm x 12.50mm. All three parts share the same 8.00mm maximum seated height. PCB layout must accommodate the 0.3mm dimensional difference in length and width for the substitute parts.

Q: Do the substitute parts maintain the same inductance tolerance? A: Yes. All three parts maintain ±20% inductance tolerance at their respective test frequencies, ensuring equivalent inductance accuracy for circuit design purposes.

Q: What are the temperature operating range differences? A: The original 49220SC operates from -40°C to 85°C. The SRR1280-220M extends to 125°C, and the BPSC00131380220M00 extends to 105°C. Applications requiring operation above 85°C should select one of the substitute parts accordingly.