The PSLIC1 is a programmable transient voltage protector, designed to protect Subscriber Line Interface Circuit (SLIC) cards for xDSL communication ports. The device can be set referenced to -VBAT, through the gate to trigger the thyristor on negative transients, while the other two diodes act as clippers for positive overloads in the circuit. PSLIC1 is configured to ensure reliable protection, eliminating the overvoltage transients introducted by the parasitic inductance of the wiring, in particular for very fast transients. The device is available in an SOIC-8 package.