ZT91 MECHANICAL DATA Dimensions in mm (inches) 8 .
ZT91 - MEDIUM POWER SILICON NPN PLANAR TRANSISTOR
ZT91 MECHANICAL DATA Dimensions in mm (inches) 8 .8 9 (0 .3 5 ) 9 .4 0 (0 .3 7 ) MEDIUM POWER SILICON NPN PLANAR TRANSISTOR 7 .7 5 (0 .3 0 5 ) 8 .5.