MBRB735HE3_A/I Equivalent & Substitute Parts

Part Overview

The MBRB735HE3_A/I 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.

Substiute Parts

MBRB735HE3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1188MBRB735HE3_A/I Datasheet

Current PartRFQ

V8P45HM3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 782V8P45HM3_A/I Datasheet

MFR RecommendedRFQ

MBRS1035 MNG

Taiwan Semiconductor CorporationIn Stock: 962MBRS1035 MNG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MBRB735HE3_A/I are selected based on the following electrical and mechanical compatibility criteria:

Primary Substitution Criteria:

• Technology: Schottky rectifier diode
• Voltage Rating: Equal to or greater than 35 V DC reverse voltage
• Current Rating: Equal to or greater than 7.5 A average rectified current
• Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
• Grade: Automotive qualification with AEC-Q101 certification
• Mounting Type: Surface Mount
• RoHS Compliance: ROHS3 Compliant

Substitute Parts Identified:

1. V8P45HM3_A/I (Vishay General Semiconductor - Diodes Division): Exceeds voltage rating (45 V) and current rating (8 A), maintains fast recovery speed, automotive grade with AEC-Q101 qualification. Package variant: TO-277A (SMPC).

2. MBRS1035 MNG (Taiwan Semiconductor Corporation): Maintains voltage rating (35 V) and exceeds current rating (10 A), maintains fast recovery speed, automotive grade with AEC-Q101 qualification. Package variant: TO-263AB (D2PAK), identical to original part.

Parameter Comparison

Engineering Selection Recommendations

MBRS1035 MNG is the primary substitute for direct replacement applications. This part maintains identical package geometry (TO-263AB D2PAK), matching voltage rating (35 V), and exceeds current capacity (10 A versus 7.5 A). The MBRS1035 MNG is active product status with extended operating temperature range (-55°C ~ 175°C), AEC-Q101 qualification, and ROHS3 compliance. No PCB layout modifications are required for this substitution.

V8P45HM3_A/I serves as an alternative for applications requiring higher voltage margin or improved forward voltage characteristics. This part provides elevated voltage rating (45 V) and current capacity (8 A), with superior forward voltage performance (580 mV @ 8 A). However, package geometry differs (TO-277A SMPC versus TO-263AB), requiring PCB layout evaluation. Operating temperature range is reduced to -40°C ~ 150°C. This substitute is suitable for designs where package footprint modification is acceptable and higher voltage headroom is beneficial.

Both substitute parts maintain automotive-grade specifications, AEC-Q101 qualification, and ROHS3 compliance, ensuring regulatory and quality standard alignment with the original MBRB735HE3_A/I component.

Frequently Asked Questions (FAQ)

Q: Can MBRS1035 MNG be used as a direct drop-in replacement for MBRB735HE3_A/I?

A: Yes. The MBRS1035 MNG uses identical TO-263AB D2PAK packaging, matching pin configuration and PCB footprint. Electrical parameters are compatible: 35 V voltage rating matches the original specification, and 10 A current rating exceeds the 7.5 A requirement. No design modifications are necessary.

Q: What are the key differences between MBRS1035 MNG and V8P45HM3_A/I?

A: MBRS1035 MNG maintains the original TO-263AB package and 35 V voltage rating, while V8P45HM3_A/I uses TO-277A packaging and provides 45 V voltage rating. V8P45HM3_A/I offers lower forward voltage (580 mV @ 8 A versus 840 mV @ 10 A) but requires PCB layout changes. MBRS1035 MNG provides direct compatibility without layout modifications.

Q: Are both substitute parts automotive-qualified?

A: Yes. Both MBRS1035 MNG and V8P45HM3_A/I carry automotive-grade classification with AEC-Q101 qualification, matching the original MBRB735HE3_A/I specification.

Q: What is the impact of the lower operating temperature minimum for V8P45HM3_A/I?

A: V8P45HM3_A/I operates from -40°C minimum junction temperature, compared to -65°C for MBRB735HE3_A/I and -55°C for MBRS1035 MNG. This difference is significant only for applications requiring operation below -40°C. For standard automotive temperature ranges, this parameter does not restrict substitution.

Q: How do reverse leakage currents compare between substitutes?

A: MBRS1035 MNG maintains 100 µA @ 35 V leakage, identical to the original part. V8P45HM3_A/I specifies 600 µA @ 45 V leakage, which is higher in absolute terms but measured at elevated voltage. For 35 V operation, V8P45HM3_A/I leakage would be lower than the specified 600 µA value.

Q: Is RoHS compliance maintained with both substitutes?

A: Yes. Both MBRS1035 MNG and V8P45HM3_A/I are ROHS3 compliant, matching the original MBRB735HE3_A/I specification.

Q: Can V8P45HM3_A/I be used in existing PCB designs without modification?

A: No. V8P45HM3_A/I uses TO-277A (SMPC) packaging, which differs from the original TO-263AB D2PAK package. PCB layout and footprint modifications are required. MBRS1035 MNG is the appropriate choice for designs requiring no layout changes.