The recommended footprint for SMAJ78A is a standard SOD128 package with a pad size of 0.8mm x 0.8mm and a spacing of 0.5mm between pads.
The thermal resistance of SMAJ78A is typically handled by ensuring good thermal conduction to the PCB, using thermal vias, and keeping the component away from heat sources. A thermal resistance of 20°C/W can be assumed for most designs.
While SMAJ78A is primarily designed for ESD protection, it can be used in high-frequency circuits up to 1 GHz. However, the parasitic capacitance and inductance of the device should be considered in the design.
To ensure reliability in harsh environments, it is recommended to follow the recommended storage and handling procedures, and to operate the device within the specified temperature and voltage ranges. Additionally, consider using a conformal coating to protect the device from moisture and contaminants.
Yes, SMAJ78A is AEC-Q101 qualified, making it suitable for use in automotive applications. However, it is recommended to verify the device's performance and reliability in the specific application and environment.
