Free Newsletter
Register for our Free Newsletters
Airport, Border and Port Safety and Security
Left Nav Sep
Left Nav Sep
Civil Aircraft
Left Nav Sep
Civil Airlines, Airports and Services
Left Nav Sep
Communications and Navigation
Left Nav Sep
Education, Training and Professional Services
Left Nav Sep
Manufacturing and Materials
Left Nav Sep
Military and Defence Facilities
Left Nav Sep
Military Aviation
Left Nav Sep
Military Vehicles
Left Nav Sep
Naval Systems
Left Nav Sep
Personal Equipment
Left Nav Sep
Software and IT Services
Left Nav Sep
Space and Satellite
Left Nav Sep
Weapons, Ammunition and Explosives
Left Nav Sep
View All
Other Carouselweb publications
Carousel Web
Defense File Logo
New Material Logo
Pro Health Service Zone
Pro Manufacturing Zone
Prosecurity Zone
Web Lec Logo
Pro Engineering Zone

TTI - New resettable Polyzen Zener / PPTC assemblies

TTI (Europe) : 27 July, 2007  (New Product)
Now available from TTI Europe is Raychem Circuit Protection's PolyZen, a polymer-enhanced, precision Zener diode micro-assembly, is designed to meet the growing need for over-current and over-voltage protection on portable equipment that uses barrel jacks for DC power input. PolyZen helps protect sensitive electronics from damage caused by inductive voltage spikes, voltage transients, incorrect power supplies and reverse bias.
The component incorporates a stable Zener diode for precise voltage clamping and a resistively non-linear, polymer positive temperature coefficient (PPTC) layer that responds to either diode heating or over-current events by transitioning from a low to high resistance state. Devices are capable of withstanding very high power fault conditions.

PolyZen devices are resettable, so they are effective against multi-watt fault events. In the event of sustained high power conditions, the PPTC element of the device trips to limit current and generate voltage drop. This functionality helps protect both the Zener and the secondary protection elements, effectively increasing the diode's power handling capacity.

These RoHS-compliant devices offer power handling up to 100 watts in a 4mm package and dissipate only 0.7W.

Bookmark and Share
Home I Editor's Blog I News by Zone I News by Date I News by Category I Special Reports I Directory I Events I Advertise I Submit Your News I About Us I Guides
   © 2012
Netgains Logo