DESCRIPTION

This device has been especially designed to protect subscriber line cards against overvoltage.

Two diodes clamp positive overloads while negative surges are suppressed by two protection thyristors.

A particular attention has been given to the internal wire bonding. The “4-point” configuration ensures a reliable protection, eliminating overvoltages introduced by the parasitic inductances of the wiring (Ldi/dt), especially for very fast transient overvoltages.

FEATURES

■ DUALASYMETRICALTRANSIENTSUPPRESSOR

■ PEAK PULSE CURRENT : IPP = 40A, 10/100µs

■ HOLDING CURRENT : 150 mA min.

■ BREAKDOWN VOLTAGE : 65 V min.

■ LOW DYNAMIC CHARACTERISTICS

■ STAND CCITT K20 AND LSSGR