SWPA252012S1R5MT Equivalent & Substitute Parts

Part Overview

The SWPA252012S1R5MT is a 1.5 µH shielded drum core wirewound inductor manufactured by Shenzhen Sunlord Electronics Co., Ltd. This surface mount component is rated for 1.4 A continuous current with a maximum DC resistance of 147mOhm and operates across the temperature range of -40°C to 125°C. The part is housed in a 1008 (2520 Metric) package and is classified as Active product status.

Substitute parts are identified when equivalent inductance values, current ratings, shielding characteristics, and package dimensions align within acceptable engineering tolerances. The BWVF002520121R5M00 from Pulse Electronics serves as a functional equivalent for applications requiring the same inductance specification with compatible electrical and mechanical parameters.

Substiute Parts

SWPA252012S1R5MT

Shenzhen Sunlord Electronics Co., Ltd.In Stock: 2462SWPA252012S1R5MT Datasheet

Current PartRFQ

BWVF002520121R5M00

Pulse ElectronicsIn Stock: 2996BWVF002520121R5M00 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SWPA252012S1R5MT is determined by strict alignment of the following critical parameters:

Inductance Value: The substitute part must provide 1.5 µH inductance within the ±20% tolerance band. This is the primary functional specification.

Current Rating: The substitute part must support a minimum continuous current rating of 1.4 A. Parts with higher current ratings are acceptable as they provide additional design margin.

DC Resistance: The substitute part must not exceed 147mOhm maximum DC resistance. Lower resistance values are acceptable and represent improved performance.

Shielding: The substitute part must be shielded to maintain electromagnetic containment equivalent to the original specification.

Package Dimensions: The substitute part must fit the 1008 (2520 Metric) footprint with compatible height and mounting characteristics for surface mount assembly.

Core Material: Ferrite core construction is required for magnetic performance consistency.

Operating Temperature: The substitute part must support operation within the -40°C to 125°C range or a range that encompasses this specification.

The BWVF002520121R5M00 meets all substitution criteria with the following distinctions: it provides higher current rating (2.3 A versus 1.4 A), lower DC resistance (68mOhm versus 147mOhm maximum), and an extended lower temperature limit (-55°C versus -40°C).

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: The SWPA252012S1R5MT remains the preferred choice when original part availability and supply chain continuity are priorities. This part is Active status with 2383 units in stock.

Substitute Selection: The BWVF002520121R5M00 is a qualified substitute when the following conditions apply:

• The application circuit can accommodate the lower DC resistance (68mOhm versus 147mOhm maximum), which reduces power dissipation and heat generation.
• The higher current rating (2.3 A versus 1.4 A) provides additional thermal and electrical margin without circuit modification.
• The extended lower operating temperature limit (-55°C versus -40°C) is beneficial for applications requiring enhanced cold-temperature performance.
• Supply chain requirements necessitate an alternative source; 2936 units are in stock.

Both parts are Active status and carry identical Moisture Sensitivity Level (MSL) ratings of 1 (Unlimited), indicating equivalent handling and storage requirements. The BWVF002520121R5M00 carries ROHS3 compliance and REACH Unaffected status, providing additional regulatory alignment for certain applications.

The 0.002" (0.05mm) height difference between parts (1.20mm versus 1.25mm seated height) is within standard PCB assembly tolerances and does not present mechanical interference concerns.

Frequently Asked Questions (FAQ)

Q: Can the BWVF002520121R5M00 be used as a direct replacement for the SWPA252012S1R5MT?

A: Yes. Both parts provide 1.5 µH inductance with ±20% tolerance, shielded ferrite core construction, identical footprint dimensions (2.50mm x 2.00mm), and surface mount compatibility. The substitute part exceeds the original specification in current rating (2.3 A versus 1.4 A) and provides lower DC resistance (68mOhm versus 147mOhm maximum).

Q: What is the significance of the DC resistance difference?

A: The BWVF002520121R5M00 has 68mOhm DC resistance compared to the SWPA252012S1R5MT maximum of 147mOhm. Lower DC resistance reduces resistive power loss (I²R losses), resulting in lower operating temperature and improved efficiency. This is a performance advantage with no negative impact on circuit function.

Q: Are there any height clearance concerns with the substitute part?

A: The seated height difference is 0.002" (0.05mm), with the substitute part measuring 0.049" (1.25mm) versus the original 0.047" (1.20mm). This negligible difference is within standard PCB assembly tolerances and does not create mechanical interference or clearance issues in typical applications.

Q: Do both parts have identical moisture sensitivity requirements?

A: Yes. Both the SWPA252012S1R5MT and BWVF002520121R5M00 carry Moisture Sensitivity Level (MSL) rating of 1 (Unlimited), indicating identical handling, storage, and reflow requirements.

Q: What is the current saturation difference between these parts?

A: The SWPA252012S1R5MT has a saturation current (Isat) of 2.24 A, while the BWVF002520121R5M00 has an Isat of 1.95 A. For applications operating at or near the 1.4 A continuous rating, both parts maintain adequate saturation margin. The original part provides slightly higher saturation headroom.

Q: Can the substitute part operate at the same temperature range?

A: The BWVF002520121R5M00 operates from -55°C to 125°C, which encompasses the original part's -40°C to 125°C range. The substitute part provides extended low-temperature capability without any upper temperature limitation.

Q: Are there regulatory or compliance differences between these parts?

A: The BWVF002520121R5M00 carries ROHS3 compliance and REACH Unaffected status. Both parts carry identical ECCN (EAR99) and HTSUS (8504.50.8000) classifications. Verify specific regulatory requirements for your application and region.

Q: What inductance test frequency is used for each part?

A: The SWPA252012S1R5MT inductance is tested at 100 kHz, while the BWVF002520121R5M00 is tested at 1 MHz. Both measurements confirm the 1.5 µH specification within ±20% tolerance at their respective test frequencies.