The recommended footprint and land pattern for SMAJ150CA-TP can be found in the Micro Commercial Components' application note or on their website. Typically, it follows the standard SOD-123 footprint with a recommended land pattern of 1.5mm x 2.5mm.
Thermal considerations for SMAJ150CA-TP include ensuring good thermal conductivity between the device and the PCB, using thermal vias if necessary, and keeping the device away from heat sources. A thermal analysis or simulation can help identify potential thermal issues.
The maximum allowable voltage for SMAJ150CA-TP is 150V, as indicated in the part number. However, it's essential to consider the clamping voltage and the maximum peak pulse current to ensure the device operates within its safe operating area.
SMAJ150CA-TP is a commercial-grade device, but Micro Commercial Components may offer a higher-reliability or automotive-grade version of the device. Check with the manufacturer or their authorized distributors for availability and specific requirements.
Follow the recommended soldering profile and guidelines provided by Micro Commercial Components, and ensure the soldering process meets the IPC standards. A well-controlled soldering process and inspection can help prevent defects and ensure reliability.