SWPA3012S220MT Equivalent & Substitute Parts

Part Overview

The SWPA3012S220MT is a 22 µH shielded drum core wirewound inductor manufactured by Shenzhen Sunlord Electronics Co., Ltd. This surface mount component is rated for 530 mA continuous current with a maximum DC resistance of 839 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 to provide alternative sourcing options when the primary part is unavailable or when design requirements permit equivalent electrical and mechanical specifications. Substitution is based strictly on matching inductance value, current rating compatibility, shielding type, package dimensions, and operating temperature range.

Key Parameters

Parameter	Value	Unit
Inductance	22	µH
Inductance Tolerance	±20%	—
Current Rating	530	mA
DC Resistance (Max)	839	mOhm
Saturation Current	420	mA
Shielding	Shielded	—
Core Material	Ferrite	—
Mounting Type	Surface Mount	—
Package Dimensions	3.00 x 3.00 x 1.20	mm
Operating Temperature	-40 to 125	°C
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the SWPA3012S220MT is determined by the following critical parameters:

Primary Matching Criteria:

Inductance value: 22 µH (exact match required)
Inductance tolerance: ±20% (matching tolerance band)
Shielding type: Shielded (electromagnetic containment requirement)
Core material: Ferrite (magnetic performance characteristic)
Mounting type: Surface Mount (assembly compatibility)
Package dimensions: 3.00 x 3.00 x 1.20 mm (PCB footprint compatibility)

Secondary Compatibility Criteria:

Current rating: Substitute must equal or exceed 530 mA
DC resistance: Substitute must not exceed 839 mOhm maximum
Operating temperature range: Substitute must cover or exceed -40°C to 125°C
Moisture sensitivity: MSL 1 (Unlimited) acceptable

The BWVF00303012220M00 from Pulse Electronics meets all primary matching criteria and provides enhanced current rating (620 mA) and saturation current (640 mA) specifications, making it a direct functional equivalent.

Parameter Comparison

Parameter	SWPA3012S220MT (Sunlord)	BWVF00303012220M00 (Pulse Electronics)	Match Status
Inductance	22 µH	22 µH	Exact Match
Inductance Tolerance	±20%	±20%	Exact Match
Current Rating	530 mA	620 mA	Substitute Exceeds
Saturation Current	420 mA	640 mA	Substitute Exceeds
DC Resistance (Max)	839 mOhm	860 mOhm	Within Tolerance
Shielding	Shielded	Shielded	Exact Match
Core Material	Ferrite	Ferrite	Exact Match
Mounting Type	Surface Mount	Surface Mount	Exact Match
Package Dimensions	3.00 x 3.00 x 1.20 mm	3.00 x 3.00 x 1.20 mm	Exact Match
Operating Temperature	-40 to 125°C	-55 to 125°C	Substitute Exceeds
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	Exact Match

Engineering Selection Recommendations

SWPA3012S220MT (Primary Part): The SWPA3012S220MT is the specified component with active production status and substantial inventory (17,219 pcs). This part is suitable for applications requiring the exact electrical and thermal specifications defined in the design.

BWVF00303012220M00 (Substitute Part): The BWVF00303012220M00 from Pulse Electronics is an active production substitute with 4,401 pcs in inventory. This part provides identical inductance, tolerance, shielding, core material, and package dimensions. The substitute offers enhanced current rating (620 mA vs. 530 mA) and extended lower operating temperature limit (-55°C vs. -40°C). DC resistance remains within acceptable tolerance (860 mOhm vs. 839 mOhm maximum). The BWVF00303012220M00 is ROHS3 compliant and REACH unaffected, meeting regulatory requirements for restricted substance compliance.

Selection between these parts is determined by inventory availability, supply chain requirements, and regulatory compliance mandates specific to the end application.

Frequently Asked Questions (FAQ)

Q: Can the BWVF00303012220M00 be used as a direct replacement for the SWPA3012S220MT?

A: Yes. Both parts share identical inductance (22 µH), tolerance (±20%), shielding type (shielded), core material (ferrite), mounting type (surface mount), and package dimensions (3.00 x 3.00 x 1.20 mm). The substitute meets or exceeds all electrical specifications of the primary part.

Q: What is the difference in DC resistance between these parts?

A: The SWPA3012S220MT has a maximum DC resistance of 839 mOhm, while the BWVF00303012220M00 has a maximum of 860 mOhm. This 21 mOhm difference represents a 2.5% variance and remains within acceptable engineering tolerance for equivalent substitution.

Q: Does the higher current rating of the BWVF00303012220M00 affect compatibility?

A: No. A substitute part with higher current rating (620 mA vs. 530 mA) and higher saturation current (640 mA vs. 420 mA) is fully compatible. The design will operate within the substitute's specifications without degradation.

Q: Are the package dimensions identical?

A: Yes. Both parts are 3.00 mm length × 3.00 mm width × 1.20 mm maximum seated height. PCB footprint and assembly compatibility are identical.

Q: What is the operating temperature difference?

A: The SWPA3012S220MT operates from -40°C to 125°C. The BWVF00303012220M00 operates from -55°C to 125°C. The substitute provides an extended lower temperature capability of 15°C additional margin.

Q: Are there any compliance differences between these parts?

A: The BWVF00303012220M00 is explicitly ROHS3 compliant and REACH unaffected. Both parts carry MSL 1 (Unlimited) moisture sensitivity rating and EAR99 export classification.

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

A: The SWPA3012S220MT is tested at 100 kHz. The BWVF00303012220M00 is tested at 1 MHz. Both measurements confirm the 22 µH inductance specification within the ±20% tolerance band.

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