ZEN056V130A24LS

TE PolyZen devices are polymer
enhanced, precision Zener diode microassemblies. They offer resettable
protection against multi-Watt fault events
without the need for multi-Watt heat sinks.
The Zener diode used for voltage
clamping in a PolyZen micro-assembly
was selected due to its relatively flat
voltage vs current response. This helps improve output
voltage clamping, even when input voltage is high and diode
currents are large.
An advanced feature of the PolyZen micro-assembly is that
the Zener diode is thermally coupled to a resistively nonlinear, polymer PTC (positive temperature coefficient) layer.
This PTC layer is fully integrated into the device, and is
electrically in series between VIN and the diode clamped VOUT.
This advanced PTC layer responds to either extended diode
heating or overcurrent events by transitioning from a low to
high resistance state, also known as ”tripping”. A tripped PTC
will limit current and generate voltage drop. It helps to protect
both the Zener diode and the follow on electronics and
effectively increases the diode’s power handling capability.
The polymer enhanced Zener diode helps protect sensitive
portable electronics from damage caused by inductive
voltage spikes, voltage transients, incorrect power supplies
and reverse bias. These devices are particularly suitable for
portable electronics and other low-power DC devices.