MBRB3035CTHE3_A/I Equivalent & Substitute Parts

Part Overview

The MBRB3035CTHE3_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 housed in a TO-263-3 D2PAK surface mount package with automotive-grade qualification (AEC-Q101).

This part 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 configuration.

Substiute Parts

MBRB3035CTHE3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 896MBRB3035CTHE3_A/I Datasheet

Current PartRFQ

V30D45CHM3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 865V30D45CHM3_A/I Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MBRB3035CTHE3_A/I is determined by the following critical parameters:

Mandatory Compatibility Criteria:

• Diode Configuration: 1 Pair Common Cathode (electrical topology must match)
• Technology: Schottky (switching characteristics and forward voltage behavior)
• Current Rating: 15 A average rectified current per diode (thermal and current handling capability)
• Mounting Type: Surface Mount (assembly process compatibility)
• Package Type: TO-263-3 D2PAK (physical footprint and lead configuration)
• Automotive Grade with AEC-Q101 Qualification (reliability and qualification status)

Allowable Variation Parameters:

• Voltage - DC Reverse (Vr): Substitute parts may have equal or higher voltage ratings, provided the application does not require the exact 35 V specification
• Forward Voltage (Vf): Minor variations are acceptable within the Schottky diode technology class
• Operating Temperature Range: Substitute parts must support the application's required temperature range
• Product Status: Active parts are preferred over obsolete parts for long-term supply assurance

The V30D45CHM3_A/I qualifies as a substitute based on these criteria, with the primary difference being an elevated reverse voltage rating (45 V versus 35 V) and active product status.

Parameter Comparison

Engineering Selection Recommendations

V30D45CHM3_A/I as Primary Substitute:

The V30D45CHM3_A/I is the qualified substitute for the MBRB3035CTHE3_A/I based on the following engineering factors:

1. Product Status: The substitute part carries Active product status, ensuring long-term availability and supply chain continuity. The main part is classified as Obsolete, making the substitute necessary for ongoing production support.

2. Electrical Compatibility: Both parts maintain identical diode configuration (1 Pair Common Cathode), current rating (15 A per diode), and Schottky technology. The substitute's 45 V reverse voltage rating exceeds the main part's 35 V specification, providing design margin for applications operating within the original 35 V specification.

3. Compliance and Qualification: Both parts carry Automotive grade classification and AEC-Q101 qualification, meeting identical reliability and qualification requirements. Both are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

4. Package Compatibility: Both parts utilize TO-263-3 D2PAK surface mount packaging with identical lead configuration and footprint, enabling direct PCB assembly compatibility without layout modifications.

5. Thermal Performance: The substitute part supports the upper temperature limit of 150°C, matching the main part's maximum junction temperature. The substitute's lower minimum temperature (-40°C versus -65°C) is acceptable for applications not requiring extended low-temperature operation below -40°C.

6. Forward Voltage Characteristics: The substitute exhibits a lower forward voltage (570 mV @ 15 A) compared to the main part (600 mV @ 20 A), resulting in reduced power dissipation and improved efficiency in rectification applications.

Frequently Asked Questions (FAQ)

Q: Can the V30D45CHM3_A/I be used as a direct replacement for the MBRB3035CTHE3_A/I?

A: Yes. Both parts share identical diode configuration, current rating, mounting type, and package footprint. The substitute's higher reverse voltage rating (45 V) is compatible with applications designed for 35 V operation. Direct PCB assembly substitution is supported without design modifications.

Q: What is the significance of the higher 45 V reverse voltage rating on the substitute part?

A: The substitute's 45 V rating provides additional voltage margin above the original 35 V specification. This higher rating does not degrade performance in 35 V applications; it simply ensures the component operates with greater design margin and reliability headroom.

Q: Are there temperature range differences between the main part and substitute?

A: Yes. The main part operates from -65°C to 150°C, while the substitute operates from -40°C to 150°C. The substitute's minimum temperature is -40°C. Applications requiring operation below -40°C must verify compatibility with the substitute's lower temperature limit.

Q: Do both parts carry the same automotive qualification?

A: Yes. Both the MBRB3035CTHE3_A/I and V30D45CHM3_A/I carry Automotive grade classification and AEC-Q101 qualification, meeting identical automotive reliability standards.

Q: Is the package footprint identical between the two parts?

A: Yes. Both parts use TO-263-3 D2PAK surface mount packaging with 2 leads plus tab configuration. The physical footprint and PCB land pattern are compatible, enabling direct substitution without layout changes.

Q: What is the difference in forward voltage between the two parts?

A: The main part specifies 600 mV @ 20 A, while the substitute specifies 570 mV @ 15 A. The substitute exhibits lower forward voltage, resulting in reduced power dissipation during rectification. The measurement conditions differ (different current levels), but both values are within typical Schottky diode performance ranges.

Q: Are both parts RoHS compliant?

A: Yes. Both the MBRB3035CTHE3_A/I and V30D45CHM3_A/I are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, meeting identical environmental and regulatory requirements.

Q: Why is the main part classified as Obsolete?

A: The MBRB3035CTHE3_A/I is no longer in active production. The V30D45CHM3_A/I is the active equivalent part maintained in current production by Vishay General Semiconductor - Diodes Division.