TO-220 7-Lead Package Outline (Flow 44) (Reference LTC DWG # 05-08-1484) .147 – .155 (3.734 – 3.937) DIA .390 – .415 (9.906 – 10.541) .165 – .180 (4.191 – 4.572) SEATING PLANE .045 – .055 (1.143 – 1.397) .230 – .270 (5.842 – 6.858) .570 – .620 (14.478 – 15.748) .460 – .500 (11.684 – 12.700) .600 – .620* (15.240 – 15.748) .330 – .370 (8.382 – 9.398) .025R (0.635) TYP .095 – .115 (2.413 – 2.921) .140 – .160* (3.556 – 4.064) T7 (TO-220)( FLOW 44) 0502 .040 – .060 (1.016 – 1.524) BSC .026 – .036 (0.660 – 0.914) *MEASURED AT SEATING PLANE CONTROLLING DIMENSIONS ARE IN INCHES .013 – .023 (0.330 – 0.584) .275 (6.985) TYP .445 (11.303) TYP