IXThe PESDU0771D1F is a transient voltage suppressor (TVS) diode manufactured by PN Siliconix. It is packaged in a SOD-123FL form, which is a low-profile surface mounted package used for the two-terminal devices such as diodes, resistors, transistors, etc. This device is RoHS compliant, meaning it contains no hazardous substances like lead. It is designed to protect sensitive electronic equipment from voltage spikes and other electrical transients commonly found in the industrial, consumer, and computer/telecommunications markets. Its maximum stand-off voltage is 22.5V, and its clamping voltage is at limits of 7.5V and 7V for each respective value.