MBRD650CT Equivalent & Substitute Parts

Part Overview

The MBRD650CT is a Schottky diode array manufactured by Vishay General Semiconductor - Diodes Division, configured as a 1 Pair Common Cathode arrangement with a maximum reverse voltage of 50 V and average rectified current of 3 A per diode. The device is housed in a TO-252-3 DPAK surface mount package and is part of the SWITCHMODE™ series.

The MBRD650CT has reached obsolete product status. Locating equivalent or substitute components is necessary to support ongoing maintenance, repair, and redesign activities for systems currently utilizing this diode array. Alternative parts with matching or superior electrical and mechanical specifications are available from multiple manufacturers.

Substiute Parts

MBRD650CT

Vishay General Semiconductor - Diodes DivisionIn Stock: 3035MBRD650CT Datasheet

Current PartRFQ

VS-MBRD650CT-M3

Vishay General Semiconductor - Diodes DivisionIn Stock: 30497VS-MBRD650CT-M3 Datasheet

Parametric EquivalentRFQ

MBRD650CTT4G

onsemiIn Stock: 2962MBRD650CTT4G Datasheet

UpgradeRFQ

RB085BM-40TL

Rohm SemiconductorIn Stock: 1781RB085BM-40TL Datasheet

MFR RecommendedRFQ

RB095BM-40FHTL

Rohm SemiconductorIn Stock: 2106RB095BM-40FHTL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MBRD650CT is determined by the following critical parameters:

Electrical Compatibility Requirements:

• Diode Configuration: 1 Pair Common Cathode (pinout and functional arrangement)
• Technology: Schottky (switching characteristics and forward voltage behavior)
• Voltage - DC Reverse (Vr) (Max): Minimum 50 V (equal or greater)
• Current - Average Rectified (Io) (per Diode): Minimum 3 A (equal or greater)
• Voltage - Forward (Vf) (Max) @ If: 700 mV @ 3 A or lower (thermal and efficiency considerations)
• Speed: Fast Recovery ≤ 500 ns, > 200 mA (Io) (switching performance)
• Current - Reverse Leakage @ Vr: 100 µA @ 50 V or lower (leakage characteristics)

Mechanical Compatibility Requirements:

• Mounting Type: Surface Mount
• Package / Case: TO-252-3, DPAK (2 Leads + Tab), SC-63 (PCB footprint compatibility)

Substitute parts are grouped into three categories based on their relationship to the main part: parametric equivalents (identical electrical and mechanical specifications), upgrades (enhanced specifications with active product status), and manufacturer-recommended alternatives (different electrical specifications but compatible package and configuration).

Parameter Comparison

Engineering Selection Recommendations

Parametric Equivalent: VS-MBRD650CT-M3

The VS-MBRD650CT-M3 from Vishay General Semiconductor is a parametric equivalent to the MBRD650CT. It maintains identical electrical specifications across all critical parameters: 50 V reverse voltage, 3 A average rectified current per diode, 700 mV forward voltage at 3 A, and 100 µA reverse leakage at 50 V. The device shares the same TO-252-3 DPAK package and 1 Pair Common Cathode configuration. The primary distinction is product status: VS-MBRD650CT-M3 is active and ROHS3 compliant, whereas the original MBRD650CT is obsolete and RoHS non-compliant. This part is suitable for direct replacement in existing designs and new applications.

Upgrade Option: MBRD650CTT4G

The MBRD650CTT4G from onsemi is functionally equivalent to the MBRD650CT with identical electrical specifications and package configuration. This part is manufactured by onsemi under the SWITCHMODE™ series designation and carries active product status with ROHS3 compliance. The MBRD650CTT4G offers an extended operating temperature range of -65°C to 175°C compared to the original -40°C to 150°C, providing enhanced thermal performance for demanding applications. This part is suitable for direct replacement and new designs.

Manufacturer-Recommended Alternative: RB095BM-40FHTL

The RB095BM-40FHTL from Rohm Semiconductor is a 1 Pair Common Cathode Schottky diode array in TO-252-3 DPAK package with active product status and ROHS3 compliance. This part operates at 40 V maximum reverse voltage and 6 A average rectified current per diode, with 550 mV forward voltage at 3 A. The RB095BM-40FHTL is qualified to AEC-Q101 automotive standards and carries automotive-grade designation. Substitution is applicable in applications where the 40 V reverse voltage rating is sufficient and the enhanced current capability (6 A versus 3 A) is beneficial or neutral. The lower forward voltage (550 mV versus 700 mV) provides improved thermal efficiency.

Alternative Option: RB085BM-40TL

The RB085BM-40TL from Rohm Semiconductor is a single Schottky diode in TO-252 package with 45 V reverse voltage and 10 A average rectified current. This part has product status "Not For New Designs" and is not recommended for new applications. The single diode configuration differs from the 1 Pair Common Cathode arrangement of the MBRD650CT, requiring circuit redesign for functional equivalence. This part is listed for reference only and is not suitable as a direct substitute.

Frequently Asked Questions (FAQ)

Q: Can the VS-MBRD650CT-M3 be used as a direct replacement for the MBRD650CT?

A: Yes. The VS-MBRD650CT-M3 is a parametric equivalent with identical electrical specifications and package configuration. It maintains 50 V reverse voltage, 3 A average rectified current per diode, 700 mV forward voltage at 3 A, and the same TO-252-3 DPAK footprint. The primary advantage is active product status and ROHS3 compliance.

Q: What is the difference between the MBRD650CTT4G and the original MBRD650CT?

A: The MBRD650CTT4G is manufactured by onsemi and maintains identical electrical specifications to the MBRD650CT. The key difference is extended operating temperature range (-65°C to 175°C versus -40°C to 150°C) and active product status with ROHS3 compliance. Both parts are functionally equivalent for circuit operation.

Q: Can the RB095BM-40FHTL replace the MBRD650CT in all applications?

A: The RB095BM-40FHTL is suitable for substitution in applications where the 40 V reverse voltage rating is adequate. The MBRD650CT operates at 50 V maximum reverse voltage, so the RB095BM-40FHTL is appropriate only for circuits with maximum reverse voltage requirements of 40 V or less. The RB095BM-40FHTL offers higher current capability (6 A versus 3 A per diode) and lower forward voltage (550 mV versus 700 mV), which are beneficial characteristics. Both parts share the same TO-252-3 DPAK package and 1 Pair Common Cathode configuration.

Q: Why is the RB085BM-40TL not recommended as a substitute?

A: The RB085BM-40TL has a single diode configuration rather than the 1 Pair Common Cathode arrangement of the MBRD650CT. This functional difference requires circuit redesign to achieve equivalent operation. Additionally, the RB085BM-40TL carries product status "Not For New Designs," indicating it is not recommended for ongoing development or new applications.

Q: Are all substitute parts RoHS compliant?

A: The MBRD650CT is RoHS non-compliant. All recommended substitute parts—VS-MBRD650CT-M3, MBRD650CTT4G, and RB095BM-40FHTL—are ROHS3 compliant. This compliance improvement is a significant advantage for new designs and systems subject to environmental regulations.

Q: Do all substitute parts use the same package footprint?

A: Yes. The MBRD650CT, VS-MBRD650CT-M3, MBRD650CTT4G, and RB095BM-40FHTL all use the TO-252-3 DPAK (2 Leads + Tab) surface mount package with SC-63 designation. PCB footprints are compatible across these parts. The RB085BM-40TL also uses TO-252 package but is not recommended as a substitute due to configuration differences.

Q: What is the moisture sensitivity level for these parts?

A: All listed parts carry Moisture Sensitivity Level (MSL) 1, indicating unlimited shelf life without moisture control requirements.