The recommended footprint and land pattern for SMBJ40A-Q can be found in the Bourns Application Note S-8151, which provides guidelines for PCB layout and assembly.
To select the correct TVS diode, consider factors such as the maximum voltage, current, and power rating required for your application. Also, consider the package type, operating temperature range, and response time. Bourns provides a TVS Diode Selection Guide that can help with the selection process.
The main difference between SMBJ40A-Q and SMBJ40CA-Q is the AEC-Q101 qualification. SMBJ40CA-Q is AEC-Q101 qualified, which means it meets the automotive industry's standards for reliability and performance. SMBJ40A-Q is not AEC-Q101 qualified, but still meets the standard specifications for TVS diodes.
While SMBJ40A-Q is a high-quality TVS diode, it may not meet the specific requirements for high-reliability or military applications. Bourns offers other TVS diode products that are specifically designed and qualified for these types of applications, such as the SMF series.
To ensure proper soldering and assembly, follow the recommended soldering profile and handling procedures outlined in the Bourns Application Note S-8151. Additionally, ensure that the PCB layout and design meet the recommended guidelines for TVS diode placement and routing.
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SMBJ40A-Q Overview
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