MBR230HW Equivalent & Substitute Parts

Part Overview

The MBR230HW is an active Schottky rectifier diode manufactured by SMC Diode Solutions, designed for surface mount applications in the SOD-123 package. This component operates at a maximum reverse voltage of 30 V with an average rectified current rating of 2 A, making it suitable for fast recovery rectification circuits. The part is RoHS3 compliant and carries unlimited moisture sensitivity classification.

Substitute parts are identified when equivalent electrical performance can be achieved within the specified parameter ranges while maintaining the same physical package and mounting characteristics. Alternative sources become necessary due to inventory availability, supply chain considerations, or specific application requirements within the defined electrical operating envelope.

Substiute Parts

MBR230HW

SMC Diode SolutionsIn Stock: 746MBR230HW Datasheet

Current PartRFQ

BAT43W-G3-18

Vishay General Semiconductor - Diodes DivisionIn Stock: 10326BAT43W-G3-18 Datasheet

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SD103BW-TP

Micro Commercial CoIn Stock: 15523SD103BW-TP Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MBR230HW is determined by the following critical parameters:

Primary Electrical Criteria:

• Voltage - DC Reverse (Vr) (Max): Must equal or exceed 30 V
• Package / Case: Must be SOD-123
• Mounting Type: Must be Surface Mount
• Technology: Must be Schottky diode

Secondary Electrical Criteria:

• Current - Average Rectified (Io): Substitute parts must support the application's current requirements
• Operating Temperature Range: Must encompass the application's thermal operating envelope
• Compliance Status: RoHS3 compliance required

The identified substitute parts (SD103BW-TP and BAT43W-G3-18) share the same reverse voltage rating, package type, and mounting technology. However, current ratings differ based on specific application requirements. SD103BW-TP supports 350 mA average rectified current, while BAT43W-G3-18 supports 200 mA. These parts are suitable only for applications where the required current does not exceed their respective ratings.

Parameter Comparison

Engineering Selection Recommendations

MBR230HW (Primary Selection): The MBR230HW remains the primary component choice for applications requiring 2 A average rectified current at 30 V reverse voltage. This part is active in production, RoHS3 compliant, and available in high inventory quantities (691 pcs). The component supports the full operating temperature range of -55°C to 125°C and is supplied in Tape & Reel packaging suitable for automated assembly.

SD103BW-TP (Partial Current Substitute): The SD103BW-TP is suitable for applications where the required average rectified current does not exceed 350 mA. This part maintains the same 30 V reverse voltage rating, SOD-123 package, and full temperature operating range (-55°C to 125°C). It is RoHS3 compliant and available in Tape & Reel packaging. Fast recovery characteristics (≤500 ns for >200 mA) are preserved. Inventory availability is 15,435 pcs.

BAT43W-G3-18 (Low Current Substitute): The BAT43W-G3-18 is suitable only for applications where the required average rectified current does not exceed 200 mA. This part shares the 30 V reverse voltage rating and SOD-123 package. However, the maximum operating temperature is specified as 125°C only, without a minimum temperature specification. The part is RoHS3 compliant but supplied in Cut Tape packaging rather than Tape & Reel. Inventory availability is 10,300 pcs.

Frequently Asked Questions (FAQ)

Q: Can BAT43W-G3-18 replace MBR230HW in all applications?

A: No. The BAT43W-G3-18 is limited to applications requiring maximum 200 mA average rectified current. The MBR230HW is rated for 2 A. Additionally, the BAT43W-G3-18 specifies only a maximum operating temperature of 125°C without a defined minimum temperature, whereas the MBR230HW operates from -55°C to 125°C.

Q: Can SD103BW-TP replace MBR230HW in all applications?

A: No. The SD103BW-TP is limited to applications requiring maximum 350 mA average rectified current. The MBR230HW is rated for 2 A. For applications requiring the full 2 A rating, the MBR230HW must be used.

Q: Are all three parts in the same physical package?

A: Yes. All three parts use the SOD-123 surface mount package. However, packaging format differs: MBR230HW and SD103BW-TP are supplied in Tape & Reel (TR), while BAT43W-G3-18 is supplied in Cut Tape (CT).

Q: What is the primary difference between these Schottky diodes?

A: The primary difference is current rating. MBR230HW supports 2 A, SD103BW-TP supports 350 mA, and BAT43W-G3-18 supports 200 mA. All share the same 30 V reverse voltage rating and SOD-123 package.

Q: Are all parts RoHS3 compliant?

A: Yes. MBR230HW, SD103BW-TP, and BAT43W-G3-18 are all RoHS3 compliant with unlimited moisture sensitivity classification (MSL 1).

Q: What is the forward voltage difference between these parts?

A: Forward voltage specifications are measured at different current levels. MBR230HW specifies 500 mV @ 2 A, SD103BW-TP specifies 600 mV @ 200 mA, and BAT43W-G3-18 specifies 450 mV @ 15 mA. Direct comparison requires evaluation at equivalent current levels.

Q: Can these parts be used interchangeably in PCB designs?

A: Yes, from a physical standpoint, as all use SOD-123 surface mount packages. However, electrical substitution is valid only when the application's current requirement does not exceed the substitute part's rating.