TE Connectivity PolyZen Device
TE Connectivity PolyZen Devices are polymer enhanced precision Zener diode micro-assemblies that help protect sensitive electronics from damage caused by inductive voltage spikes, voltage transients, use of incorrect power supplies and reverse bias. The PolyZen Device from TE Connectivity, composed of a Zener diode and a resistively non-linear, polymeric positive temperature coefficient (PPTC) layer, is a smaller, more consumer driven device that offers a slim profile for single component placement and space restrained applications. These devices help provide resettable protection against damage caused by multi-watt fault events and require only 0.7W power dissipation. When sustained high power conditions emerge, the PPTC element "trips" to limit current and generate voltage drop, a protection mechanism that increases the Zener diode's power handling capacity.