Dedicated to telecommunication equipment protection, these devices provide a triple bidirectional protection function.They ensure the same protection capability with the same breakdown voltage both in longitudinal mode and transversal mode.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.Dynamic characteristics have been defined for several types of surges to meet the SLIC maximum ratings.bidirectional crowbar protection between TIP and GND, RING and GND and between TIP and RINGpeak pulse current:IPP= 30 A for 10/1000 µs surgeholding current: IH= 150 mAComplies with Bellcore standardTR-NWT-001089-Core, (second level) with line series resistors:10/1000 µs, 1000 V2/10 µs, 2500 V (first level)2/10 µs, 5000 V