The TVST59031 uses a (also known as DO-27) molded plastic package. The 2021 revision provides updated mechanical drawings with millimeters and inches.
Because this is a "universal" board, it does not "know" which screen it is attached to until the correct firmware is installed. tvst59031 datasheet pdf 2021
Check the full part number. “A” suffix usually means unidirectional; “CA” suffix means bidirectional. The 2021 datasheet clearly marks polarity. The TVST59031 uses a (also known as DO-27)
The 2021 datasheet recommends the TVST59031 when through-hole assembly and medium power are required. tvst59031 datasheet pdf 2021
(If you need precise numeric values — e.g., exact voltages, gains, noise figures, and register addresses — consult the full 2021 PDF datasheet for those authoritative numbers.)