SWPA6045S3R3NT Equivalent & Substitute Parts

Part Overview

The SWPA6045S3R3NT is a 3.3 µH shielded drum core wirewound inductor manufactured by Shenzhen Sunlord Electronics Co., Ltd. This surface mount component is rated for 3.7 A continuous current with a maximum DC resistance of 27 mOhm and operates across the temperature range of -40°C to 125°C. The part is currently active in production with 1880 units in stock.

Substitute parts are identified when equivalent inductance values, current ratings, shielding characteristics, and package dimensions align within acceptable electrical and mechanical tolerances. Alternative components may be required due to supply chain availability, inventory levels, or specific compliance certifications needed for particular applications.

Substiute Parts

SWPA6045S3R3NT

Shenzhen Sunlord Electronics Co., Ltd.In Stock: 1977SWPA6045S3R3NT Datasheet

Current PartRFQ

BWVS006060453R3M00

Pulse ElectronicsIn Stock: 12379BWVS006060453R3M00 Datasheet

SimilarRFQ

SDCH1V6045-3R3M-R

Eaton - Electronics DivisionIn Stock: 3091SDCH1V6045-3R3M-R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SWPA6045S3R3NT are qualified based on the following critical parameters:

Electrical Equivalence Criteria:

• Inductance value of 3.3 µH at 100 kHz test frequency
• Current rating equal to or greater than 3.7 A
• DC resistance within acceptable limits (27 mOhm maximum for primary specification)
• Saturation current (Isat) sufficient to support application requirements
• Ferrite core material composition

Mechanical Compatibility Criteria:

• Surface mount package type
• Nonstandard case dimensions of 6.00 mm length × 6.00 mm width
• Height compatibility within 4.50 mm to 4.70 mm seated maximum
• Tape & Reel packaging format

Environmental & Compliance Criteria:

• Operating temperature range of -40°C to 125°C minimum
• Moisture Sensitivity Level 1 (Unlimited)
• ECCN EAR99 classification
• HTSUS code 8504.50.8000

The substitute parts listed below meet these criteria and are therefore electrically and mechanically interchangeable with the SWPA6045S3R3NT in applications where the specified parameters are required.

Parameter Comparison

Engineering Selection Recommendations

BWVS006060453R3M00 (Pulse Electronics)

This substitute part exceeds the electrical specifications of the SWPA6045S3R3NT. The current rating of 4.3 A provides 16% additional capacity over the main part's 3.7 A rating. The saturation current of 7.5 A is 21% higher, and the DC resistance of 24 mOhm is 11% lower, resulting in reduced power dissipation. The inductance tolerance of ±20% is tighter than the main part's ±30%. Both parts feature shielded construction and identical package footprints. The BWVS006060453R3M00 carries ROHS3 compliance and REACH Unaffected status. Inventory availability is significantly higher at 12,301 units. This part is suitable for applications requiring improved thermal performance and tighter inductance control.

SDCH1V6045-3R3M-R (Eaton - Electronics Division)

This substitute part meets the core electrical requirements with a 4.0 A current rating, providing 8% additional capacity. The saturation current of 8.5 A is 37% higher than the main part, offering substantial margin for transient conditions. The DC resistance of 26 mOhm is 4% lower. The primary distinction is the semi-shielded construction compared to the fully shielded design of the SWPA6045S3R3NT. The inductance tolerance of ±20% is tighter than the main part. The SDCH1V6045-3R3M-R carries ROHS3 compliance and REACH Unaffected status. Inventory availability is 3,030 units. This part is suitable for applications where semi-shielded performance is acceptable and higher saturation current margin is beneficial.

Both substitute parts are active products with established supply chains and compliance certifications. Selection between them depends on specific application requirements regarding shielding effectiveness and thermal performance characteristics.

Frequently Asked Questions (FAQ)

Q: Can the BWVS006060453R3M00 be used as a direct replacement for the SWPA6045S3R3NT?

A: Yes. Both parts share identical inductance values of 3.3 µH, ferrite core material, surface mount package type, and 6.00 × 6.00 mm footprint dimensions. The BWVS006060453R3M00 provides equal or superior electrical performance with higher current rating (4.3 A vs. 3.7 A), lower DC resistance (24 mOhm vs. 27 mOhm), and tighter inductance tolerance (±20% vs. ±30%). Both are shielded designs and operate across overlapping temperature ranges.

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

A: Shielded inductors, such as the SWPA6045S3R3NT and BWVS006060453R3M00, feature complete electromagnetic shielding that minimizes radiated emissions and susceptibility to external magnetic fields. Semi-shielded inductors, such as the SDCH1V6045-3R3M-R, provide partial shielding, resulting in lower cost and reduced height but with increased electromagnetic coupling to surrounding components. Selection depends on application-specific EMI/RFI requirements.

Q: Are there height differences between these parts?

A: The SWPA6045S3R3NT and SDCH1V6045-3R3M-R both have a maximum seated height of 4.50 mm. The BWVS006060453R3M00 has a maximum seated height of 4.70 mm, representing a 0.20 mm increase. This difference is within typical PCB assembly tolerances but should be verified if height-constrained applications are involved.

Q: Do all three parts meet RoHS and REACH compliance?

A: The BWVS006060453R3M00 and SDCH1V6045-3R3M-R are explicitly marked as ROHS3 Compliant and REACH Unaffected. The SWPA6045S3R3NT does not include RoHS or REACH status information in the provided specifications. If compliance certification is required, the Pulse Electronics or Eaton parts are the appropriate selections.

Q: What is the significance of inductance tolerance differences?

A: The SWPA6045S3R3NT has an inductance tolerance of ±30%, while both substitute parts specify ±20%. Tighter tolerance means the actual inductance value will be closer to the nominal 3.3 µH specification. Applications requiring precise inductance values for frequency-dependent circuits benefit from the ±20% tolerance of the substitute parts.

Q: Can the SDCH1V6045-3R3M-R be used in applications requiring full shielding?

A: The SDCH1V6045-3R3M-R is semi-shielded, not fully shielded. Applications with strict EMI/RFI requirements or high sensitivity to external magnetic field coupling require fully shielded inductors such as the SWPA6045S3R3NT or BWVS006060453R3M00. Semi-shielded construction is suitable for general-purpose applications with moderate electromagnetic isolation requirements.

Q: What are the saturation current differences and why do they matter?

A: The SWPA6045S3R3NT has an Isat of 6.2 A, the BWVS006060453R3M00 has 7.5 A, and the SDCH1V6045-3R3M-R has 8.5 A. Saturation current represents the point at which the inductor's core becomes magnetically saturated, causing inductance to drop significantly. Higher saturation current provides greater margin for transient current spikes and peak load conditions. Applications with variable or pulsed current loads benefit from higher saturation ratings.

Q: Are all three parts available in Tape & Reel packaging?

A: Yes. All three parts are supplied in Tape & Reel (TR) packaging format, suitable for automated surface mount assembly processes. Inventory levels differ: SWPA6045S3R3NT (1,880 units), BWVS006060453R3M00 (12,301 units), and SDCH1V6045-3R3M-R (3,030 units).

Q: What is the operating temperature range for each part?

A: The SWPA6045S3R3NT and SDCH1V6045-3R3M-R both operate from -40°C to 125°C. The BWVS006060453R3M00 operates from -55°C to 125°C, providing 15°C additional low-temperature capability. Applications requiring operation in extreme cold environments benefit from the extended lower temperature limit of the Pulse Electronics part.