A transient voltage suppressor (TVS) apparatus includes a plurality of input/output (I/O) pins, a plurality of ground pins, and a substrate. The substrate includes a plurality of division parts and a carrier part. The carrier part carries a chip. The division parts are disposed between each of the I/O pins and the ground pins. The chip is electrically connected to the I/O pins and the ground pins, and the division parts are electrically insulated from the I/O pins and the ground pins.