SWPA3012S2R2NT Equivalent & Substitute Parts

Part Overview

The SWPA3012S2R2NT is a 2.2 µH shielded drum core wirewound inductor manufactured by Shenzhen Sunlord Electronics Co., Ltd. This surface mount component is rated for 1.55 A continuous current with a maximum DC resistance of 98 mOhm and operates across the temperature range of -40°C to 125°C. The part is currently active in production with 5,315 units available in inventory.

Substitute parts are identified when equivalent inductance values, current ratings, shielding characteristics, and physical dimensions align within acceptable tolerances for the application. Alternative components may be required due to supply chain availability, lead time considerations, or specific compliance certifications needed for particular manufacturing environments.

Substiute Parts

SWPA3012S2R2NT

Shenzhen Sunlord Electronics Co., Ltd.In Stock: 5412SWPA3012S2R2NT Datasheet

Current PartRFQ

BWVF003030122R2M00

Pulse ElectronicsIn Stock: 3221BWVF003030122R2M00 Datasheet

SimilarRFQ

SDCL1V3012-2R2M-R

Eaton - Electronics DivisionIn Stock: 9156SDCL1V3012-2R2M-R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SWPA3012S2R2NT is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value of 2.2 µH (exact match required)
• Ferrite core material composition
• Surface mount nonstandard package format (3.00mm x 3.00mm footprint)
• Tape & Reel packaging format
• Operating temperature range compatibility (-40°C to 125°C minimum)

Secondary Compatibility Factors:

• Current rating equal to or greater than 1.55 A
• DC resistance within acceptable limits for the application
• Saturation current (Isat) sufficient for circuit requirements
• Shielding characteristics (shielded or semi-shielded acceptable based on EMI requirements)

The two identified substitute parts meet these criteria with variations in current rating capacity, DC resistance specifications, and shielding configuration. Both alternatives maintain the same inductance value, core material, physical footprint, and mounting technology as the primary component.

Parameter Comparison

Engineering Selection Recommendations

BWVF003030122R2M00 (Pulse Electronics)

This substitute provides enhanced current handling capability at 2.0 A, exceeding the primary component's 1.55 A rating. The DC resistance of 92 mOhm is lower than the SWPA3012S2R2NT specification, resulting in reduced power dissipation. The inductance tolerance is tighter at ±20% compared to ±30%. The component maintains full shielding and operates across an extended temperature range (-55°C to 125°C). This part is ROHS3 compliant and REACH unaffected. Selection of this substitute is appropriate for applications requiring higher current capacity or lower resistance characteristics within the same physical footprint.

SDCL1V3012-2R2M-R (Eaton - Electronics Division)

This substitute features semi-shielded construction rather than full shielding, which may reduce electromagnetic interference containment compared to the primary component. The current rating of 1.4 A is slightly below the SWPA3012S2R2NT specification, and the DC resistance of 105 mOhm Max exceeds the primary component. The saturation current of 1.55 A matches the primary component's current rating. The inductance tolerance is ±20%. This part is RoHS compliant and REACH unaffected. Selection of this substitute is appropriate for applications where semi-shielded performance is acceptable and current requirements do not exceed 1.4 A continuous operation.

All three components share identical inductance values, ferrite core material, surface mount technology, and nonstandard 3.00mm x 3.00mm footprint. Physical height variation between the primary component (1.20mm) and the Eaton substitute (1.30mm) must be verified against PCB assembly clearance requirements.

Frequently Asked Questions (FAQ)

Q: Can the BWVF003030122R2M00 be used as a direct replacement for the SWPA3012S2R2NT?

A: Yes, the BWVF003030122R2M00 is electrically and mechanically compatible. Both components share the same 2.2 µH inductance, ferrite core material, 3.00mm x 3.00mm footprint, and surface mount configuration. The Pulse Electronics part provides superior current handling (2.0 A vs. 1.55 A) and lower DC resistance (92 mOhm vs. 98 mOhm Max). Identical PCB layout and reflow profiles apply to both components.

Q: What are the differences between shielded and semi-shielded inductors?

A: Shielded inductors (SWPA3012S2R2NT and BWVF003030122R2M00) provide complete electromagnetic field containment, reducing radiated emissions and susceptibility to external magnetic fields. Semi-shielded inductors (SDCL1V3012-2R2M-R) offer partial field containment with lower cost and reduced profile height. Selection depends on EMI requirements and circuit sensitivity specifications.

Q: Is the 0.10mm height difference between the SWPA3012S2R2NT and SDCL1V3012-2R2M-R significant?

A: The SWPA3012S2R2NT has a maximum seated height of 1.20mm, while the SDCL1V3012-2R2M-R measures 1.30mm maximum. This 0.10mm difference must be evaluated against PCB assembly clearance specifications, conformal coating requirements, and component stacking constraints. Verification with manufacturing documentation is required before substitution.

Q: Which substitute part has the lowest DC resistance?

A: The BWVF003030122R2M00 (Pulse Electronics) has the lowest DC resistance at 92 mOhm, compared to 98 mOhm Max for the SWPA3012S2R2NT and 105 mOhm Max for the SDCL1V3012-2R2M-R. Lower DC resistance reduces I²R power losses in the inductor.

Q: Are all three parts RoHS and REACH compliant?

A: The BWVF003030122R2M00 is explicitly ROHS3 compliant and REACH unaffected. The SDCL1V3012-2R2M-R is RoHS compliant and REACH unaffected. The SWPA3012S2R2NT compliance status is not specified in the provided documentation. Verification with the manufacturer is recommended for applications requiring explicit compliance certification.

Q: What is the significance of inductance tolerance differences?

A: The SWPA3012S2R2NT has ±30% tolerance, while both substitute parts specify ±20% tolerance. Tighter tolerance reduces inductance variation across production batches, improving circuit performance consistency. Applications with strict inductance requirements benefit from the ±20% specification of the substitute parts.

Q: Can the SDCL1V3012-2R2M-R be used in high-current applications?

A: The SDCL1V3012-2R2M-R is rated for 1.4 A continuous current, which is below the SWPA3012S2R2NT specification of 1.55 A. This substitute is not suitable for applications requiring sustained current above 1.4 A. The BWVF003030122R2M00 with 2.0 A rating is the appropriate choice for higher current requirements.

Q: What inventory considerations apply to these substitute parts?

A: The SDCL1V3012-2R2M-R (Eaton) has the highest inventory availability at 9,072 units, followed by the SWPA3012S2R2NT (Sunlord) at 5,315 units, and the BWVF003030122R2M00 (Pulse Electronics) at 3,131 units. Lead time and supply chain continuity may influence substitution decisions based on production volume requirements.