Surge protection circuit and electronic equipment

The embodiment of the invention discloses a surge protection circuit and electronic equipment. The surge protection circuit comprises three clamping type surge protection devices, three switch type surge protection devices and three impedance branches, and the three clamping type surge protection devices are in triangular connection; the three switch type surge protection devices are in one-to-onecorrespondence with three voltage protection ends of the surge protection circuit, and each of the three ends of the three clamping type surge protection devices after triangular connection is electrically connected with one voltage protection end of the corresponding surge protection circuit through the corresponding switch type surge protection device; and the impedance branches are in one-to-one correspondence with the switch type surge protection devices, and the impedance branches are connected with the corresponding switch type surge protection devices in parallel, wherein for the samehigh frequency, the high-f