The recommended footprint and land pattern for SMBJ28A-E3 can be found in the Vishay Intertechnologies' application note AN10365, which provides guidelines for surface-mount assembly of SMBJ devices.
Thermal considerations for SMBJ28A-E3 include ensuring good thermal conductivity between the device and the PCB, using thermal vias, and keeping the device away from heat sources. The thermal resistance of the device is specified in the datasheet, and thermal modeling can be used to ensure the device operates within its thermal limits.
The SMBJ28A-E3 has an ESD rating of Class 3A (>2500 V) per IEC 61000-4-2, which means it can withstand electrostatic discharges up to 2500 V without damage.
While SMBJ28A-E3 is a high-quality device, it is not specifically designed for high-reliability or aerospace applications. For such applications, Vishay Intertechnologies offers other devices that meet the relevant standards and requirements, such as the JAN, JANTX, or JANS series.
The correct SMBJ28A-E3 variant depends on the specific requirements of your application, including the voltage rating, current rating, and package type. The datasheet provides a selection guide, and Vishay Intertechnologies' application engineers can also provide guidance on selecting the correct device.
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