SWPA252012S4R7MT Equivalent & Substitute Parts

Part Overview

The SWPA252012S4R7MT is a 4.7 µH shielded drum core wirewound inductor manufactured by Shenzhen Sunlord Electronics Co., Ltd. This surface mount component is rated for 840 mA continuous current with a maximum DC resistance of 377mOhm and operates across the temperature range of -40°C to 125°C. The part is currently active in production with substantial inventory availability.

Substitute parts are identified when equivalent inductance values, core materials, shielding characteristics, and mounting specifications align with the original component's electrical and mechanical requirements. Alternative sources provide equivalent performance within the specified parameter tolerances.

Substiute Parts

SWPA252012S4R7MT

Shenzhen Sunlord Electronics Co., Ltd.In Stock: 253475SWPA252012S4R7MT Datasheet

Current PartRFQ

BWVF002520124R7M00

Pulse ElectronicsIn Stock: 3010BWVF002520124R7M00 Datasheet

SimilarRFQ

SDCL1V2512-4R7M-R

Eaton - Electronics DivisionIn Stock: 8730SDCL1V2512-4R7M-R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SWPA252012S4R7MT are qualified based on the following criteria:

Primary Matching Parameters:

• Inductance value: 4.7 µH
• Inductance tolerance: ±20%
• Core material: Ferrite
• Mounting type: Surface Mount
• Physical dimensions: 2.50mm x 2.00mm footprint
• Moisture sensitivity level: 1 (Unlimited)

Secondary Compatibility Parameters:

• Operating temperature range: Minimum -40°C to 125°C coverage
• Shielding: Shielded or semi-shielded configurations
• Current rating: Equal to or greater than 840 mA
• DC resistance: Within acceptable limits for the application

The identified substitute parts maintain the core inductance specification and ferrite construction while offering enhanced current handling capabilities and improved DC resistance characteristics in certain cases.

Parameter Comparison

Engineering Selection Recommendations

BWVF002520124R7M00 (Pulse Electronics)

This substitute provides superior DC resistance performance at 190 mOhm compared to the original 377 mOhm specification. The component supports an increased current rating of 1.1 A with saturation current matching at 1.1 A. The extended operating temperature range of -55°C to 125°C provides additional thermal margin. All three components share identical footprint dimensions and MSL rating. This part is RoHS3 compliant and REACH unaffected, meeting modern regulatory requirements.

SDCL1V2512-4R7M-R (Eaton - Electronics Division)

This substitute maintains the original operating temperature range of -40°C to 125°C and seated height of 1.20 mm, providing direct mechanical compatibility. The DC resistance of 236 mOhm represents an improvement over the original specification. Current rating is 1.1 A with saturation current of 1.35 A, offering enhanced performance headroom. The semi-shielded configuration differs from the fully shielded original but maintains ferrite core construction. This part is RoHS compliant and REACH unaffected.

All substitute parts maintain the 4.7 µH inductance specification with ±20% tolerance and are packaged in identical 2.50mm x 2.00mm surface mount form factors with MSL 1 rating.

Frequently Asked Questions (FAQ)

Q: Can BWVF002520124R7M00 be used as a direct replacement for SWPA252012S4R7MT?

A: Yes. Both components share the same 4.7 µH inductance, ±20% tolerance, ferrite core material, shielded configuration, and 2.50mm x 2.00mm footprint. The BWVF part offers improved DC resistance (190 mOhm vs. 377 mOhm) and higher current rating (1.1 A vs. 840 mA). The height difference of 0.05 mm (1.25 mm vs. 1.20 mm) is within typical PCB assembly tolerances.

Q: What is the difference between shielded and semi-shielded inductors?

A: Shielded inductors (SWPA252012S4R7MT and BWVF002520124R7M00) provide complete electromagnetic shielding to minimize radiated emissions and susceptibility to external fields. Semi-shielded inductors (SDCL1V2512-4R7M-R) provide partial shielding. Selection depends on EMI requirements of the specific application.

Q: Are all three parts compatible with the same PCB layout?

A: The SWPA252012S4R7MT, BWVF002520124R7M00, and SDCL1V2512-4R7M-R all share identical footprint dimensions of 2.50mm x 2.00mm. The seated heights are 1.20 mm, 1.25 mm, and 1.20 mm respectively. This 0.05 mm variation in the Pulse Electronics part is within standard PCB assembly clearance specifications.

Q: Which substitute offers the best DC resistance performance?

A: The BWVF002520124R7M00 provides the lowest DC resistance at 190 mOhm, compared to 377 mOhm for the original SWPA252012S4R7MT and 236 mOhm for the SDCL1V2512-4R7M-R. Lower DC resistance reduces power dissipation and heat generation in the inductor.

Q: Do all parts meet current regulatory compliance standards?

A: The BWVF002520124R7M00 is RoHS3 compliant and REACH unaffected. The SDCL1V2512-4R7M-R is RoHS compliant and REACH unaffected. All three parts carry MSL 1 (Unlimited) moisture sensitivity rating and share the same ECCN and HTSUS classifications.

Q: What is the temperature operating range difference between the parts?

A: The SWPA252012S4R7MT and SDCL1V2512-4R7M-R operate from -40°C to 125°C. The BWVF002520124R7M00 extends the lower temperature limit to -55°C, providing an additional 15°C of cold temperature margin.

Q: Can these parts be used interchangeably in high-current applications?

A: The SWPA252012S4R7MT is rated for 840 mA continuous current. Both substitute parts are rated for 1.1 A continuous current, providing 260 mA additional capacity. For applications requiring the original 840 mA specification, all three parts are suitable. For applications exceeding 840 mA, the substitute parts offer enhanced current handling capability.