11

MARCH 1999 - REVISED MARCH 2000

TISP7070H3SL THRU TISP7095H3SL, TISP7125H3SL THRU TISP7210H3SL

TISP7250H3SL THRU TISP7400H3SL

TRIPLE BIDIRECTIONAL THYRISTOR OVERVOLTAGE PROTECTORS

P R O D UCT

INFORM A T ION

standard (JESD51-3, 1996) defines two test PCBs for surface mount components; one for packages smaller

than 27 mm on a side and the other for packages up to 48 mm. The thermal measurements used the smaller

76.2 mm x 114.3 mm (3.0 “ x 4.5 “) PCB. The JESD51-3 PCBs are designed to have low effective thermal

conductivity (high thermal resistance) and represent a worse case condition. The PCBs used in the majority

of applications will achieve lower values of thermal resistance and so can dissipate higher power levels than

indicated by the JESD51 values.