ZV20K0805121NIR1HT is a low voltage, high temperature SMD multilayer varistor from the Bourns ZVHT series, designed to protect sensitive electronic devices against high voltage surges in the low voltage region. It features a maximum continuous working voltage of 20 Vrms (26 Vdc), a varistor voltage of 33 V at 1 mA, and a clamping voltage of 54 V at 8/20 µs pulse. The device is housed in an 0805 package size with dimensions of approximately 2.0 mm × 1.25 mm, and offers a maximum surge current of 120 A. With an operating temperature range of -55°C to +150°C and RoHS compliance, this varistor is ideal for protecting integrated circuits and other sensitive electronics in automotive and industrial applications requiring high temperature stability.