SWPA3015S3R3MT Equivalent & Substitute Parts

Part Overview

The SWPA3015S3R3MT is a 3.3 µH shielded drum core wirewound inductor manufactured by Shenzhen Sunlord Electronics Co., Ltd. This surface mount component is rated for 1.36 A continuous current with a maximum DC resistance of 104mOhm 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 electrical performance can be maintained within the specified parameter tolerances while meeting the same functional requirements for surface mount inductors in this inductance and current rating class.

Substiute Parts

SWPA3015S3R3MT

Shenzhen Sunlord Electronics Co., Ltd.In Stock: 21510SWPA3015S3R3MT Datasheet

Current PartRFQ

BWVF003030153R3M00

Pulse ElectronicsIn Stock: 19764BWVF003030153R3M00 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SWPA3015S3R3MT is determined by the following critical parameters:

Inductance Value: The substitute part must maintain 3.3 µH inductance within the ±20% tolerance band.

Current Rating: The substitute must support the application's current requirements. The SWPA3015S3R3MT is rated for 1.36 A continuous current; substitute parts with equal or higher current ratings are acceptable.

DC Resistance: The substitute's DC resistance must not exceed the maximum specified value, as higher resistance increases power dissipation and heat generation.

Core Material and Shielding: Both the main part and substitute utilize ferrite core material with shielding to minimize electromagnetic interference.

Package Dimensions: The substitute must fit the same 3.00 x 3.00 x 1.50 mm footprint for mechanical compatibility in surface mount applications.

Operating Temperature Range: The substitute must support the specified temperature range or a superset thereof.

Moisture Sensitivity: MSL 1 rating indicates unlimited moisture exposure tolerance, meeting the same environmental classification.

Parameter Comparison

Engineering Selection Recommendations

SWPA3015S3R3MT (Primary Part): This part remains the preferred selection when available. It offers the lowest DC resistance at 104 mOhm maximum, resulting in minimal power dissipation. The part is actively manufactured by Shenzhen Sunlord Electronics with confirmed inventory availability of 21,479 units.

BWVF003030153R3M00 (Substitute Part): This Pulse Electronics inductor is a functional equivalent suitable for applications where the SWPA3015S3R3MT is unavailable. The substitute provides higher current and saturation ratings (1.8 A and 1.9 A respectively), making it suitable for designs with current headroom requirements. The DC resistance is 125 mOhm, representing a 20.2% increase over the primary part. The operating temperature range extends to -55°C, providing enhanced low-temperature performance. The substitute is ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. Inventory availability is confirmed at 19,683 units.

Both parts share identical inductance values, tolerance specifications, package dimensions, and moisture sensitivity ratings. Selection between these parts depends on application-specific requirements for DC resistance, current margin, and temperature range.

Frequently Asked Questions (FAQ)

Q: Can the BWVF003030153R3M00 directly replace the SWPA3015S3R3MT in all applications?

A: The BWVF003030153R3M00 is mechanically and electrically compatible for most applications. Both parts maintain 3.3 µH inductance within ±20% tolerance, fit the same 3.00 x 3.00 x 1.50 mm footprint, and operate across overlapping temperature ranges. The primary difference is DC resistance: the substitute is rated at 125 mOhm maximum versus 104 mOhm for the primary part. Applications sensitive to power dissipation or thermal performance should account for this 20.2% resistance increase.

Q: What is the impact of the higher DC resistance in the substitute part?

A: DC resistance directly affects power dissipation according to the formula P = I²R. At the rated current of 1.36 A, the primary part dissipates approximately 192 mW, while the substitute dissipates approximately 231 mW. This 39 mW difference is significant in thermally constrained designs. Applications operating at lower currents experience proportionally smaller differences.

Q: Are both parts suitable for high-frequency applications?

A: The primary part SWPA3015S3R3MT specifies a self-resonant frequency of 68 MHz with inductance testing performed at 100 kHz. The substitute part BWVF003030153R3M00 does not specify self-resonant frequency but lists inductance testing at 1 MHz. For applications requiring operation above 1 MHz, the substitute's higher test frequency may indicate better high-frequency performance characteristics, though direct comparison requires additional frequency response data.

Q: Do both parts meet current environmental and compliance standards?

A: The SWPA3015S3R3MT carries ECCN EAR99 classification and HTSUS code 8504.50.8000. The BWVF003030153R3M00 is ROHS3 compliant and REACH unaffected, meeting current European regulatory requirements. Both parts are classified as MSL 1 (Unlimited moisture sensitivity level), indicating no moisture-related handling restrictions.

Q: What are the saturation current differences between these parts?

A: The SWPA3015S3R3MT saturates at 1.81 A, while the BWVF003030153R3M00 saturates at 1.9 A. Both parts exceed their continuous current ratings, providing saturation margin. The substitute offers 4.9% higher saturation current, which may be beneficial in applications experiencing transient current spikes.

Q: Can the substitute part operate at lower temperatures than the primary part?

A: Yes. The BWVF003030153R3M00 operates from -55°C to 125°C, extending 15°C lower than the SWPA3015S3R3MT's -40°C to 125°C range. Applications requiring operation below -40°C must use the substitute part.