The P6KE51CA is an 8.7A, 1µA, 600W, 70.1V, 48.5V, 43.6V, 53.6V bi-directional DO-15 TVS (transient voltage suppressor) with RoHS certification manufactured by Liown. The device is designed to provide protection against electrical transients caused by nearby lightning or electrical wiring faults. It can be used to protect a variety of consumer and professional level electrical equipment, including PCs, networking and telecoms equipment. The device is designed to safely absorb high-voltage transients and will clamp the voltage back to within specified limits. It is also RoHS compliant, meaning it meets the strictest standards of hazardous material control.