description
The TISPL758LF3 is an integrated combination of a symmetrical bidirectional overvoltage protector and an asymmetrical bidirectional overvoltage protector. It is designed to limit the peak voltages on the line terminals of the Lucent Technologies L7581/2/3 LCAS (Line Card Access Switches). An LCAS may also be referred to as a Solid State Relay, SSR, i.e. a replacement of the conventional electro mechanical relay.
The TISPL758LF3D voltages are chosen to give adequate LCAS protection for all switch conditions. The most potentially stressful condition is low level power cross when the LCAS switches are closed. Under this condition, the TISPL758LF3D limits the voltage and corresponding LCAS dissipation until the LCAS thermal trip operates and opens the switches.

● Symmetrical and Asymmetrical
   Characteristics for Optimum Protection of Lucent L7581/2/3 LCAS
● Rated for International Surge Wave Shapes
● Ion-Implanted Breakdown Region
   Precise And Stable Voltage
   Low Voltage Overshoot Under Surge
● Planar Passivated Junctions
   Low Off-State Current < ±10 µA
● Small Outline Surface Mount Package
   - Available Ordering Options