MBRD350 Equivalent & Substitute Parts

Part Overview

The MBRD350 is a Schottky rectifier diode manufactured by onsemi, rated for 50 V DC reverse voltage and 3 A average rectified current in a surface mount DPAK package. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The MBRD350 operates across a junction temperature range of -65°C to 150°C and features fast recovery characteristics suitable for switching applications within the SWITCHMODE™ series.

Substiute Parts

MBRD350

onsemiIn Stock: 3824MBRD350 Datasheet

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CSHD3-60 TR13 PBFREE

Central Semiconductor CorpIn Stock: 5900CSHD3-60 TR13 PBFREE Datasheet

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VS-30WQ06FN-M3

Vishay General Semiconductor - Diodes DivisionIn Stock: 30352VS-30WQ06FN-M3 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the MBRD350 is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Voltage - DC Reverse (Vr) rating must equal or exceed 50 V
• Current - Average Rectified (Io) must equal or exceed 3 A
• Technology must be Schottky diode
• Speed classification must be Fast Recovery (≤ 500ns, > 200mA)
• Operating temperature range must encompass or exceed -65°C to 150°C

Mechanical Compatibility Criteria:

• Package / Case must be TO-252-3, DPAK (2 Leads + Tab), SC-63
• Mounting Type must be Surface Mount

Both substitute parts listed meet these criteria. The CSHD3-60 TR13 PBFREE and VS-30WQ06FN-M3 provide equal or superior electrical ratings while maintaining identical mechanical compatibility. Both substitutes are classified as Active products, addressing the obsolescence status of the MBRD350.

Parameter Comparison

Engineering Selection Recommendations

CSHD3-60 TR13 PBFREE (Central Semiconductor Corp)

This substitute provides direct electrical and mechanical compatibility with the MBRD350. The 60 V reverse voltage rating provides 20% margin above the original 50 V specification. Current rating remains at 3 A, matching the original requirement. The component is classified as Active, ensuring continued availability. ROHS3 compliance addresses regulatory requirements not met by the obsolete MBRD350. Packaging is supplied in Tape & Reel format.

VS-30WQ06FN-M3 (Vishay General Semiconductor - Diodes Division)

This substitute exceeds the electrical specifications of the MBRD350 with a 60 V reverse voltage rating and 3.5 A current capacity, providing design margin. Forward voltage at 3 A is 610 mV, comparable to the original 600 mV specification. Reverse leakage current is significantly lower at 2 µA compared to 200 µA, indicating superior performance characteristics. The component is classified as Active with ROHS3 compliance. Operating temperature range extends to -40°C minimum, which covers the original -65°C to 150°C range for applications above -40°C. Packaging is supplied in Tube format.

Both substitutes maintain identical DPAK surface mount packaging, enabling direct board-level replacement without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the MBRD350 be directly replaced with either substitute part?

A: Yes. Both CSHD3-60 TR13 PBFREE and VS-30WQ06FN-M3 are mechanically and electrically compatible with the MBRD350. Both use identical TO-252-3 DPAK packaging and meet or exceed all critical electrical parameters.

Q: What is the primary reason for substitution?

A: The MBRD350 is classified as obsolete. The substitute parts are classified as Active, ensuring long-term availability and supply chain continuity.

Q: Are there differences in forward voltage between the substitutes?

A: Yes. The CSHD3-60 TR13 PBFREE has a maximum forward voltage of 750 mV @ 3 A, while the VS-30WQ06FN-M3 has 610 mV @ 3 A. The original MBRD350 specifies 600 mV @ 3 A. The VS-30WQ06FN-M3 provides closer performance matching to the original specification.

Q: What is the difference in reverse leakage current?

A: The MBRD350 specifies 200 µA @ 50 V. The CSHD3-60 TR13 PBFREE specifies 30 µA @ 60 V, and the VS-30WQ06FN-M3 specifies 2 µA @ 60 V. Both substitutes exhibit lower leakage current, indicating improved performance.

Q: Do the substitutes have different current ratings?

A: The CSHD3-60 TR13 PBFREE maintains the original 3 A rating. The VS-30WQ06FN-M3 provides 3.5 A, offering additional current capacity margin.

Q: What is the difference in packaging format?

A: The CSHD3-60 TR13 PBFREE is supplied in Tape & Reel format. The VS-30WQ06FN-M3 is supplied in Tube format. Both are surface mount compatible with identical DPAK footprints.

Q: Are both substitutes RoHS compliant?

A: Yes. Both CSHD3-60 TR13 PBFREE and VS-30WQ06FN-M3 are ROHS3 compliant. The original MBRD350 is RoHS non-compliant.

Q: What is the operating temperature difference?

A: The MBRD350 and CSHD3-60 TR13 PBFREE both operate from -65°C to 150°C. The VS-30WQ06FN-M3 operates from -40°C to 150°C. For applications requiring operation below -40°C, the CSHD3-60 TR13 PBFREE is the appropriate selection.

Q: Can both substitutes be used interchangeably in the same application?

A: Both substitutes meet the minimum electrical and mechanical requirements for MBRD350 replacement. Selection between them depends on specific application requirements regarding forward voltage characteristics, reverse leakage performance, current margin, and operating temperature range.