MBRB1545CTHE3/81

Diode Arrays Overview

The MBRB1545CTHE3/81 is a dual common-cathode Schottky rectifier manufactured by Vishay General Semiconductor. It utilizes the D2PAK (TO-263AB) surface-mount package and features an integrated guardring for overvoltage protection. The device supports a maximum repetitive peak reverse voltage of 45 V and provides a total maximum average forward rectified current of 15 A, with each diode rated at 7.5 A. Key electrical characteristics include a low forward voltage drop ranging from 0.57 V to 0.84 V depending on operating conditions, and a high peak forward surge capability of 150 A per diode.

Diode Arrays Feature Summary

• Guardring structure designed for enhanced overvoltage protection
• Low forward voltage drop contributing to reduced power loss and high efficiency
• High forward surge current capability suitable for demanding switching applications
• AEC-Q101 qualified for automotive reliability standards

Diode Arrays Applications

• High frequency rectification in switching mode power supplies
• Freewheeling diodes in DC/DC converter circuits
• Polarity protection applications

Diode Arrays Procurement Notes

Verify that the ordering suffix /81 corresponds to the specific tube packaging configuration as defined in the official Vishay datasheet. Confirm compliance requirements such as RoHS and halogen-free status associated with the HE3 suffix. Ensure the component meets the required thermal management specifications for the D2PAK package during integration.

Diode Arrays Selection Notes

Select this component when a dual common-cathode Schottky rectifier is required for high-frequency switching applications. The D2PAK package offers efficient heat dissipation compared to standard through-hole options. Consider the 45 V reverse voltage rating and 15 A total current capacity to ensure adequate headroom for the target circuit design.

Diode Arrays Part Context

This part belongs to the MBRB15xxCT series of dual common-cathode Schottky rectifiers. The series includes variants with different reverse voltage ratings, such as 60 V models. The MBRB1545CTHE3/81 specifically denotes the 45 V version packaged in D2PAK with automotive-grade qualification and specific packaging identifiers.

Diode Arrays Replacement Considerations

Compatible substitutes within the same family include the MBRB1545CT-M3/I for commercial grade applications or the MBRB1545CTHM3/I for halogen-free automotive versions. Verify pinout compatibility and thermal resistance values before substitution.