TISP83121D

TISP83121D DUAL-GATE UNIDIRECTIONAL OVERVOLTAGE PROTECTOR Copyright © 1999, Power Innovations Limited, UK FEBRUARY 1999 OVERVOLTAGE PROTECTION FOR DUAL-VOLTAGE RINGING SLICS q Programmable Protection Configurations up to ±100 V Typically 5 Lines Protected by Two TISP83121D + Diode Steering Networks High Surge Current - 150 A 10/1000 µs - 150 A 10/700 µs - 500 A 8/20 µs Pin compatible with the LCP3121 - Functional Replacement in Diode Steering Network Applications - 50% more surge current Small Outline Surface Mount Package - Available Ordering Options CARRIER Tube Taped and reeled PART # TISP83121D TISP83121DR D PACKAGE (TOP VIEW) q K G1 G2 K 1 2 3 4 8 7 6 5 K A A K MD6XAYA q For operation at the rated current values connect pins 1, 4, 5 and 8 together. q device symbol A q G2 G1 description The TISP83121D is a dual-gate reverse-blocking unidirectional thyristor designed for the protection of dual-voltage ringing SLICs (Subscriber Line Interface Circuits) against overvoltages on the telephone line caused by lightning, a.c. power contact and induction. The device chip is a four-layer NPNP silicon thyristor structure which has an electrode connection to every layer. For negative overvoltage protection the TISP83121D is used in a common anode configuration with the voltage to be limited applied to the cathode (K) terminal and the negative reference potential applied to the gate 1 (G1) terminal. For positive overvoltage protection the TISP83121D is used in a common...