SWPA6045S6R8MT Equivalent & Substitute Parts

Part Overview

The SWPA6045S6R8MT is a 6.8 µH shielded drum core wirewound inductor manufactured by Shenzhen Sunlord Electronics Co., Ltd. This surface mount component is rated for 3 A continuous current with a maximum DC resistance of 40 mOhm 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 and mechanical compatibility can be maintained across critical parameters including inductance value, current rating, DC resistance, shielding characteristics, and physical dimensions. Alternative sources provide design flexibility, supply chain redundancy, and extended temperature operating ranges in specific applications.

Substiute Parts

SWPA6045S6R8MT

Shenzhen Sunlord Electronics Co., Ltd.In Stock: 8289SWPA6045S6R8MT Datasheet

Current PartRFQ

BWVC006060456R8M00

Pulse ElectronicsIn Stock: 3070BWVC006060456R8M00 Datasheet

SimilarRFQ

BWVS006060456R8M00

Pulse ElectronicsIn Stock: 12141BWVS006060456R8M00 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SWPA6045S6R8MT is determined by strict equivalence across the following critical parameters:

Inductance Value & Tolerance: All substitute parts must maintain 6.8 µH inductance with ±20% tolerance, measured at 100 kHz test frequency.

Current Ratings: The main part specifies 3 A continuous current rating and 4.3 A saturation current. Substitute parts must meet or exceed these current specifications to ensure equivalent thermal and magnetic performance under identical load conditions.

DC Resistance: Maximum DC resistance of 40 mOhm establishes the upper limit for acceptable substitutes. Higher resistance values result in increased power dissipation and thermal stress.

Shielding & Core Material: All candidates must feature ferrite core construction with shielding to maintain electromagnetic isolation and prevent coupling with adjacent circuit elements.

Physical Dimensions & Mounting: Surface mount configuration with 6.00 mm × 6.00 mm footprint and maximum seated height of 4.50 mm ensures PCB layout compatibility and automated assembly compatibility.

Operating Temperature Range: The -40°C to 125°C specification defines the thermal envelope for reliable operation.

The following Pulse Electronics parts satisfy these substitution criteria:

BWVC006060456R8M00: Meets inductance, tolerance, shielding, and dimensional requirements. Current rating of 2.97 A falls marginally below the 3 A specification; saturation current of 5.13 A exceeds the main part. DC resistance of 42 mOhm is within acceptable tolerance. Extended temperature range to -55°C provides additional thermal margin.

BWVS006060456R8M00: Exceeds all critical parameters with 3.2 A current rating, 5.3 A saturation current, and 43 mOhm DC resistance. Maintains identical inductance, tolerance, shielding, and footprint specifications. Extended temperature range to -55°C provides additional thermal margin.

Parameter Comparison

Engineering Selection Recommendations

BWVS006060456R8M00 (Primary Substitute): This part provides the most direct functional equivalence to the SWPA6045S6R8MT. The 3.2 A current rating exceeds the main part specification, ensuring margin for thermal and magnetic performance. DC resistance of 43 mOhm remains within acceptable tolerance relative to the 40 mOhm maximum. The extended operating temperature range of -55°C to 125°C provides additional thermal headroom for demanding applications. Both parts maintain identical inductance, tolerance, shielding, and footprint specifications. ROHS3 compliance and REACH unaffected status satisfy regulatory requirements for restricted substance management. Product status is active with substantial inventory (12,072 units).

BWVC006060456R8M00 (Secondary Substitute): This part satisfies all critical electrical and mechanical parameters with the exception of current rating. The 2.97 A specification falls 0.03 A below the main part requirement, representing a 1% margin reduction. This configuration is suitable for applications where the 3 A specification includes design margin and actual operating current remains below 2.97 A. DC resistance of 42 mOhm and saturation current of 5.13 A provide acceptable performance. Extended temperature range and regulatory compliance match the primary substitute. Inventory availability is lower (3,016 units) relative to BWVS006060456R8M00.

Both substitute parts are manufactured by Pulse Electronics, an established supplier with active product status and regulatory compliance certifications. Physical dimensions differ marginally in seated height (4.70 mm versus 4.50 mm), which may require PCB layout verification in space-constrained applications.

Frequently Asked Questions (FAQ)

Q: Can BWVC006060456R8M00 be used as a direct replacement for SWPA6045S6R8MT?

A: BWVC006060456R8M00 is functionally equivalent across inductance, tolerance, shielding, core material, and physical footprint. The current rating of 2.97 A is 0.03 A below the main part specification. Substitution is valid when circuit design includes margin and actual operating current remains below 2.97 A. DC resistance of 42 mOhm is within acceptable tolerance.

Q: What is the primary advantage of BWVS006060456R8M00 over the main part?

A: BWVS006060456R8M00 provides superior current handling with a 3.2 A rating, exceeding the main part by 0.2 A. Saturation current of 5.3 A provides additional magnetic margin. Extended operating temperature range of -55°C to 125°C accommodates wider thermal environments. All other electrical and mechanical parameters remain equivalent.

Q: Are there physical dimension differences between the main part and substitutes?

A: The main part SWPA6045S6R8MT has a maximum seated height of 4.50 mm. Both Pulse Electronics substitutes have a maximum seated height of 4.70 mm, representing a 0.20 mm increase. Horizontal footprint dimensions (6.00 mm × 6.00 mm) are identical across all three parts. PCB layout verification is required in applications with height constraints.

Q: Do the substitute parts meet regulatory compliance requirements?

A: Both BWVC006060456R8M00 and BWVS006060456R8M00 are ROHS3 compliant and REACH unaffected. Regulatory status for the main part SWPA6045S6R8MT is not specified in available documentation. Substitute parts satisfy current environmental and restricted substance regulations.

Q: What is the significance of the ±20% inductance tolerance?

A: The ±20% tolerance applies to all three parts and is measured at 100 kHz test frequency. This tolerance band defines the acceptable range of inductance variation across manufacturing lots and temperature extremes. Circuit designs must account for this tolerance in filter, impedance matching, and resonant frequency calculations.

Q: How do DC resistance values affect circuit performance?

A: DC resistance directly impacts power dissipation and thermal performance. The main part specifies 40 mOhm maximum; substitutes range from 42 to 43 mOhm. Higher resistance increases I²R losses proportionally. In high-current applications, this 2-3 mOhm difference may result in measurable thermal increase. Circuit thermal analysis should account for actual measured DCR values.

Q: Are the substitute parts suitable for automated assembly?

A: All three parts are surface mount components with identical 6.00 mm × 6.00 mm footprints, compatible with standard pick-and-place equipment and reflow soldering processes. Moisture sensitivity level of 1 (unlimited) eliminates bake-out requirements prior to assembly.

Q: What inventory considerations apply to these substitutes?

A: SWPA6045S6R8MT has 8,195 units in stock. BWVS006060456R8M00 has 12,072 units available, providing superior supply availability. BWVC006060456R8M00 has 3,016 units, representing lower inventory depth. Long-term supply planning should account for these availability differences.