Littelfuse, Inc. Fuses & Overcurrent Protection - PolySwitch® Resettable PPTC Devices - Series: LS - ZEN132V075A48LS ZEN132V075A48LS

Help improve output voltage clamping – even when input voltage is high and diode currents are large. Our PolySwitchdevices are polymer-enhanced, precision Zener diode micro-assemblies. The advanced feature of these devices is that the Zener diode is thermally coupled to a resistively non-linear PPTC (Polymer Positive Temperature Coefficient) layer. This PPTC layer is fully integrated into the devices and is electrically in series between VIN and the diode-clamped VOUT. These offer resettable protection against multi-watt fault events without the need for multi-watt heat sinks. Use PolySwitchdevices to help protect low-power DC applications from damage caused by inductive voltage spikes, voltage transients, incorrect power supplies, and reverse bias. Multi-Watt and Time Delayed Protection Overvoltage transient suppression Stable VZ vs. fault current Time delayed, overvoltage trip Time delayed, reverse bias trip Multi-Watt power handling capability Integrated device construction RoHS compliant