SWPA4026S2R2MT Equivalent & Substitute Parts

Part Overview

The SWPA4026S2R2MT is a 2.2 µH shielded drum core wirewound inductor manufactured by Shenzhen Sunlord Electronics Co., Ltd. This surface mount component is rated for 2 A continuous current with a maximum DC resistance of 52 mOhm and operates across the temperature range of -40°C to 125°C. The part is currently active in production and available in tape and reel packaging.

Substitute parts are identified when equivalent electrical performance can be achieved within the specified parameter tolerances while maintaining mechanical compatibility with the target application footprint and thermal requirements.

Substiute Parts

SWPA4026S2R2MT

Shenzhen Sunlord Electronics Co., Ltd.In Stock: 878SWPA4026S2R2MT Datasheet

Current PartRFQ

BWVF004040262R2M00

Pulse ElectronicsIn Stock: 930BWVF004040262R2M00 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SWPA4026S2R2MT is permissible with the BWVF004040262R2M00 based on the following electrical and mechanical alignment criteria:

Matching Parameters:

• Inductance value: 2.2 µH (identical)
• Inductance tolerance: ±20% (identical)
• Core material: Ferrite (identical)
• Shielding: Shielded (identical)
• Mounting type: Surface Mount (identical)
• Package footprint: 4.00 x 4.00 mm (identical)
• Inductance test frequency: 100 kHz (identical)
• Moisture sensitivity level: 1 (Unlimited) (identical)

Allowable Variations:

• Current rating: Substitute rated at 3.5 A exceeds the 2 A requirement of the main part
• Saturation current (Isat): Substitute rated at 3.8 A exceeds the 2.1 A requirement
• DC resistance: Substitute at 45 mOhm is lower than the 52 mOhm maximum specification
• Height: Substitute at 2.80 mm is within acceptable mechanical tolerance relative to 2.60 mm maximum
• Operating temperature range: Substitute range of -55°C to 125°C encompasses the main part range

The substitute part provides equal or superior electrical performance within the specified inductance and tolerance band while maintaining identical footprint dimensions.

Parameter Comparison

Engineering Selection Recommendations

SWPA4026S2R2MT (Primary Part)

The SWPA4026S2R2MT remains the primary selection when the original design specification calls for the Sunlord Electronics SWPA series inductor. This part is active in production with 791 units in current inventory. The component meets all specified electrical and mechanical requirements for applications requiring a 2.2 µH shielded ferrite core inductor with 2 A current handling capability.

BWVF004040262R2M00 (Substitute Part)

The BWVF004040262R2M00 from Pulse Electronics is a direct substitute when supply constraints affect the primary part availability. This part is also active in production with 871 units in current inventory. The substitute provides superior current handling (3.5 A vs. 2 A) and lower DC resistance (45 mOhm vs. 52 mOhm maximum), resulting in reduced power dissipation in the application circuit. The substitute maintains identical inductance value, tolerance, footprint, and shielding characteristics.

The substitute part carries RoHS3 compliance and REACH unaffected status, meeting regulatory requirements for restricted substance control. Both parts are classified under ECCN EAR99 and HTSUS 8504.50.8000.

Frequently Asked Questions (FAQ)

Q: Can the BWVF004040262R2M00 be used as a direct replacement for the SWPA4026S2R2MT on the PCB?

A: Yes. Both parts share identical footprint dimensions (4.00 x 4.00 mm) and surface mount package type. The substitute height of 2.80 mm is within acceptable mechanical tolerance relative to the main part maximum of 2.60 mm and does not create clearance conflicts in standard PCB assembly processes.

Q: What is the primary advantage of using the BWVF004040262R2M00 substitute?

A: The substitute part provides higher current rating (3.5 A vs. 2 A) and lower DC resistance (45 mOhm vs. 52 mOhm maximum). These characteristics reduce resistive losses and thermal generation in the circuit, improving overall efficiency and component reliability under sustained current operation.

Q: Are there any electrical performance differences between the two parts?

A: Both parts deliver identical inductance (2.2 µH) at the test frequency of 100 kHz with ±20% tolerance. The substitute part exhibits superior saturation current margin (3.8 A vs. 2.1 A), providing additional headroom before inductance degradation occurs at elevated current levels.

Q: Do both parts meet the same environmental and compliance standards?

A: Both parts operate across overlapping temperature ranges, with the substitute offering extended low-temperature operation (-55°C vs. -40°C minimum). Both parts carry MSL 1 (Unlimited) moisture sensitivity rating. The substitute part includes RoHS3 and REACH compliance documentation.

Q: What is the impact of the 0.20 mm height difference on PCB assembly?

A: The 0.20 mm height difference (2.80 mm substitute vs. 2.60 mm main part) is within standard PCB assembly tolerances and does not affect reflow soldering, component placement accuracy, or clearance to adjacent components in typical circuit board designs.

Q: Can the parts be intermixed in the same production batch?

A: Both parts are qualified for identical tape and reel packaging and surface mount assembly processes. However, component traceability and design documentation should reflect the specific part number used in each production unit to maintain accurate bill of materials records.