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TE Connectivity PolyZen Devices

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.
Features
  • RoHS compliant
  • Overvoltage transient suppression
  • Holds currents up to 2.3A
  • Time delayed, overvoltage trip
  • Time delayed, reverse bias trip
  • Power handling on the order of 30 watts
  • Integrated device construction
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
  • Portable media players
  • Global positioning systems
  • Hard disk drives 5V & 12V bus
  • Solid State Drives (SSD) 5V bus
  • Cellphone charger port and USB power
  • Automotive peripheral input power
  • DC power port protection
  • Industrial handheld POS
General Characteristics for PolyZen Devices

Operating Temperature
-40ºC to +85ºC
 
Storage Temperature
-40ºC to +85ºC
 
ESD withstand
15kV
Human body model
Diode capacitance
4200pF
Typical @ 1MHz, 1V RMS
Construction
RoHS compliant
 

Typical Application Block Diagram for PolyZen Devices
  • TE Connectivity
  • Circuit Protection
게시일: 2016-03-29 | 갱신일: 2016-03-29