PolyZen^™ device

The RoHS compliant PolyZen ^TM devices are polymer protected precision Zener diode micro-assemblies. The PolyZen device consists of a Zener and the follow-on electronics is additionally protected by a fully integrated resistively non-linear, polymer PTC layer. They offer resettable protection against multi-watt fault events that requires no special heat sinking.

Features

• overvoltage transient suppression
• stable Vz vs. fault current
• time delayed, overvoltage trip
• time delayed, reverse bias trip
• power handling on the order of 100 watt
• integrated device construction
• RoHS compliant

Benefits

• helps shield downstream electronics from overvoltage and reverse bias
• trip events shut out overvoltage and reverse bias sources
• analog nature of trip events minimize upstream inductive spikes
• helps reduce design costs with single component placement and minimal heat sinking requirements

Applications

• DC power port protection for systems using barrel jacks for power input
• DC power port protection in portable electronics
• internal overvoltage and transient suppression