MBRB30H35CTHE3_A/I Equivalent & Substitute Parts

Part Overview

The MBRB30H35CTHE3_A/I is a Schottky diode array manufactured by Vishay General Semiconductor - Diodes Division. This component features a 1 Pair Common Cathode configuration rated for 35 V DC reverse voltage and 15 A average rectified current per diode. The device is packaged in TO-263-3 (D2PAK) surface mount format with automotive-grade qualification (AEC-Q101).

The MBRB30H35CTHE3_A/I is classified as Obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this diode array.

Key Parameters

Parameter	Value
Diode Configuration	1 Pair Common Cathode
Technology	Schottky
Voltage - DC Reverse (Vr) (Max)	35 V
Current - Average Rectified (Io) (per Diode)	15 A
Voltage - Forward (Vf) (Max) @ If	620 mV @ 15 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)
Operating Temperature - Junction	-65°C ~ 175°C
Package / Case	TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
Mounting Type	Surface Mount
Grade	Automotive
Qualification	AEC-Q101
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the MBRB30H35CTHE3_A/I are categorized based on electrical and mechanical compatibility within the following parameters:

Primary Substitution Criteria:

Diode Configuration: 1 Pair Common Cathode
Technology: Schottky
Voltage - DC Reverse (Vr) (Max): 35 V or higher
Current - Average Rectified (Io) (per Diode): 15 A
Package / Case: TO-263-3, D2PAK surface mount format
Mounting Type: Surface Mount

Substitution Categories:

Parametric Equivalents (35 V Rating): Parts maintaining identical 35 V reverse voltage rating with matching 15 A current capacity and TO-263-3 package format. These parts provide direct functional replacement with identical electrical specifications.

Manufacturer Recommended Substitute (45 V Rating): The V30DM45CHM3/I offers higher voltage rating (45 V) while maintaining 15 A current capacity and TO-263-3 package compatibility. This part is suitable for applications where higher voltage margin is acceptable or beneficial.

Parameter Comparison

Parameter	MBRB30H35CTHE3_A/I	VS-30CTQ035SHM3	VS-30CTQ035S-M3	30CTQ035S	V30DM45CHM3/I
Diode Configuration	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode
Technology	Schottky	Schottky	Schottky	Schottky	Schottky
Voltage - DC Reverse (Vr) (Max)	35 V	35 V	35 V	35 V	45 V
Current - Average Rectified (Io) (per Diode)	15 A	15 A	15 A	15 A	15 A
Voltage - Forward (Vf) (Max) @ If	620 mV @ 15 A	620 mV @ 15 A	620 mV @ 15 A	620 mV @ 15 A	600 mV @ 15 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Operating Temperature - Junction	-65°C ~ 175°C	-55°C ~ 175°C	-55°C ~ 175°C	-55°C ~ 175°C	-40°C ~ 175°C
Package / Case	TO-263-3, D2PAK, TO-263AB	TO-263-3, D2PAK, TO-263AB	TO-263-3, D2PAK, TO-263AB	TO-263-3, D2PAK, TO-263AB	TO-263-3, D2PAK, Variant
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Grade	Automotive	Automotive	Not specified	Not specified	Automotive
Qualification	AEC-Q101	AEC-Q101	Not specified	Not specified	AEC-Q101
Product Status	Obsolete	Active	Active	Obsolete	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS non-compliant	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Parametric Replacement (35 V Applications):

VS-30CTQ035SHM3 is the primary recommended substitute. This part maintains identical electrical specifications (35 V, 15 A, 620 mV forward voltage) and TO-263-3 package format. The part is Active status with AEC-Q101 automotive qualification and ROHS3 compliance. Operating temperature range is -55°C to 175°C, which covers the majority of automotive applications. Current inventory availability is 856 pieces.

VS-30CTQ035S-M3 provides equivalent electrical performance with identical 35 V and 15 A ratings. This part is Active status and ROHS3 compliant. Operating temperature range is -55°C to 175°C. Current inventory availability is 906 pieces. This part does not specify automotive grade or AEC-Q101 qualification.

For Higher Voltage Margin Applications:

V30DM45CHM3/I is the manufacturer-recommended substitute offering 45 V reverse voltage rating while maintaining 15 A current capacity. This part is Active status with AEC-Q101 automotive qualification and ROHS3 compliance. Forward voltage is 600 mV at 15 A, providing improved performance. Operating temperature range is -40°C to 175°C. Current inventory availability is 785 pieces. This part is suitable for applications where higher voltage headroom is required or beneficial.

Obsolete Parts to Avoid:

30CTQ035S is Obsolete status and RoHS non-compliant. This part should not be selected for new designs or ongoing production.

Frequently Asked Questions (FAQ)

Q: Can VS-30CTQ035SHM3 directly replace MBRB30H35CTHE3_A/I?

A: Yes. Both parts share identical electrical specifications: 35 V reverse voltage, 15 A average rectified current, 620 mV forward voltage at 15 A, and Fast Recovery Schottky technology. Both use TO-263-3 D2PAK surface mount packaging. VS-30CTQ035SHM3 is Active status with AEC-Q101 qualification and ROHS3 compliance, making it suitable for direct substitution in automotive applications.

Q: What is the difference between VS-30CTQ035SHM3 and VS-30CTQ035S-M3?

A: Both parts have identical electrical specifications and package format. The primary difference is that VS-30CTQ035SHM3 specifies Automotive grade and AEC-Q101 qualification, while VS-30CTQ035S-M3 does not specify these qualifications. For automotive applications, VS-30CTQ035SHM3 is the preferred choice.

Q: When should V30DM45CHM3/I be used instead of the 35 V alternatives?

A: V30DM45CHM3/I should be selected when the application requires higher voltage margin or operates at voltages approaching the 35 V limit of the original part. The 45 V rating provides additional safety margin. This part also offers slightly lower forward voltage (600 mV vs. 620 mV at 15 A), which can reduce power dissipation. V30DM45CHM3/I is Active status with AEC-Q101 qualification and ROHS3 compliance.

Q: Are all substitute parts available in the same packaging?

A: All substitute parts use TO-263-3 D2PAK surface mount packaging, which is mechanically and electrically compatible with the original MBRB30H35CTHE3_A/I. Packaging variants (TO-263AB vs. TO-263AC) are minor designations within the same D2PAK family and do not affect PCB layout or thermal performance.

Q: What is the operating temperature difference between the original part and substitutes?

A: The original MBRB30H35CTHE3_A/I operates from -65°C to 175°C. The 35 V substitute parts (VS-30CTQ035SHM3 and VS-30CTQ035S-M3) operate from -55°C to 175°C, providing 10°C less low-temperature capability. The 45 V substitute (V30DM45CHM3/I) operates from -40°C to 175°C, providing 25°C less low-temperature capability. For applications requiring operation below -55°C, the original part specifications must be maintained.

Q: Are all substitute parts ROHS3 compliant?

A: VS-30CTQ035SHM3, VS-30CTQ035S-M3, and V30DM45CHM3/I are all ROHS3 compliant. The 30CTQ035S is RoHS non-compliant and should not be used for new designs or applications with RoHS requirements.

Q: What is the current inventory status for substitute parts?

A: VS-30CTQ035SHM3 has 856 pieces in stock. VS-30CTQ035S-M3 has 906 pieces in stock. V30DM45CHM3/I has 785 pieces in stock. All substitute parts are currently available from inventory.

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