MBRB735HE3_A/P Equivalent & Substitute Parts

Part Overview

The MBRB735HE3_A/P is a Schottky rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 35 V DC reverse voltage and 7.5 A average rectified current in a TO-263AB surface mount package. This component is classified as obsolete, necessitating identification of equivalent substitute parts for ongoing design requirements and procurement needs. Substitute parts must maintain functional compatibility while meeting automotive-grade specifications and AEC-Q101 qualification standards.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	35 V
Current - Average Rectified (Io)	7.5 A
Voltage - Forward (Vf) (Max) @ If	840 mV @ 15 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	100 µA @ 35 V
Technology	Schottky
Grade	Automotive
Qualification	AEC-Q101
Package / Case	TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
Mounting Type	Surface Mount
Operating Temperature - Junction	-65°C ~ 150°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the MBRB735HE3_A/P are selected based on the following substitution criteria:

Primary Substitution Logic: Schottky rectifier diodes are functionally interchangeable when the substitute part meets or exceeds the original specifications in the following parameters:

Voltage - DC Reverse (Vr) rating must be equal to or greater than 35 V
Current - Average Rectified (Io) rating must be equal to or greater than 7.5 A
Technology must be Schottky
Speed classification must be Fast Recovery (≤ 500ns, > 200mA)
Grade must be Automotive with AEC-Q101 qualification
Mounting type must be Surface Mount
Package compatibility or functional equivalence in thermal and electrical performance

Allowed Parameter Variations:

Forward voltage (Vf) may vary within typical Schottky diode ranges
Reverse leakage current may vary within acceptable automotive specifications
Operating temperature range may extend beyond original specifications
Package form factor may differ if electrical and thermal performance are maintained

Substitute parts identified: V8P45HM3_A/I and MBRS1035 MNG

Parameter Comparison

Parameter	MBRB735HE3_A/P	V8P45HM3_A/I	MBRS1035 MNG
Manufacturer	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division	Taiwan Semiconductor Corporation
Technology	Schottky	Schottky	Schottky
Voltage - DC Reverse (Vr) (Max)	35 V	45 V	35 V
Current - Average Rectified (Io)	7.5 A	8 A	10 A
Voltage - Forward (Vf) (Max) @ If	840 mV @ 15 A	580 mV @ 8 A	840 mV @ 10 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	100 µA @ 35 V	600 µA @ 45 V	100 µA @ 35 V
Grade	Automotive	Automotive	Not specified
Qualification	AEC-Q101	AEC-Q101	Not specified
Package / Case	TO-263-3, D2PAK (2 Leads + Tab), TO-263AB	TO-277, 3-PowerDFN	TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Operating Temperature - Junction	-65°C ~ 150°C	-40°C ~ 150°C	-55°C ~ 175°C
Product Status	Obsolete	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

V8P45HM3_A/I (Vishay General Semiconductor - Diodes Division)

This substitute provides superior voltage rating (45 V vs. 35 V) and equivalent current capacity (8 A vs. 7.5 A). The part maintains Automotive grade classification and AEC-Q101 qualification, ensuring compliance with original design requirements. Forward voltage performance is improved (580 mV @ 8 A vs. 840 mV @ 15 A). The TO-277A package differs from the original TO-263AB, requiring PCB layout modification. This part is currently in active production status with 725 units in stock. RoHS3 compliance and REACH unaffected status are maintained.

MBRS1035 MNG (Taiwan Semiconductor Corporation)

This substitute maintains identical voltage rating (35 V) and exceeds current capacity (10 A vs. 7.5 A). The part uses the same TO-263AB package as the original, eliminating PCB redesign requirements. Forward voltage characteristics are equivalent (840 mV @ 10 A). Operating temperature range extends to 175°C, providing enhanced thermal margin. This part is currently in active production status with 900 units in stock. RoHS3 compliance and REACH unaffected status are maintained. Automotive grade and AEC-Q101 qualification status are not specified in available documentation.

Frequently Asked Questions (FAQ)

Q: Can the V8P45HM3_A/I be used as a direct replacement for the MBRB735HE3_A/P?

A: The V8P45HM3_A/I meets all electrical substitution criteria with superior voltage and current ratings. However, the package differs (TO-277A vs. TO-263AB), requiring PCB layout modification. Both parts maintain Automotive grade and AEC-Q101 qualification.

Q: What are the package differences between substitute options?

A: The MBRS1035 MNG uses the identical TO-263AB (D2PAK) package as the original MBRB735HE3_A/P, enabling direct PCB compatibility. The V8P45HM3_A/I uses a TO-277A (SMPC) package, which requires PCB footprint redesign.

Q: Does the MBRS1035 MNG meet automotive qualification requirements?

A: Automotive grade and AEC-Q101 qualification status are not specified in the available technical documentation for the MBRS1035 MNG. Verification with Taiwan Semiconductor Corporation is required for applications with mandatory automotive qualification requirements.

Q: How do forward voltage characteristics compare between substitutes?

A: The V8P45HM3_A/I exhibits lower forward voltage (580 mV @ 8 A) compared to both the original part (840 mV @ 15 A) and the MBRS1035 MNG (840 mV @ 10 A). This results in reduced power dissipation in the V8P45HM3_A/I application.

Q: Are both substitute parts currently available?

A: Both substitute parts are in active production status. V8P45HM3_A/I has 725 units in stock; MBRS1035 MNG has 900 units in stock.

Q: What is the impact of different operating temperature ranges?

A: The original MBRB735HE3_A/P operates from -65°C to 150°C. The V8P45HM3_A/I operates from -40°C to 150°C (reduced low-temperature range). The MBRS1035 MNG operates from -55°C to 175°C (extended high-temperature range). Application requirements determine suitability.

Q: Do both substitutes maintain RoHS3 compliance?

A: Both substitute parts are ROHS3 compliant and REACH unaffected, matching the original part's environmental compliance status.

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