P Package 3-Lead Plastic TO-3P (Similar to TO-247)) (Reference LTC DWG # 05-08-1450 Rev A) .515 – .580 (13.08 – 14.73) .305 – .370 (7.75 – 9.40) .265 – .293 (6.73 – 7.44) .560 – .620 (14.22 – 15.75) .187 – .207 (4.75 – 5.26) .620 – .640 (15.75 – 16.26) .819 – .870 (20.80 – 22.10) .635 – .720 (16.13 – 18.29) MOUNTING HOLE 18° – 22° .115 – .145 (2.92 – 3.68) DIA .060 – .081 (1.52 – 2.06) .170 – .215 (4.32 – 5.46) .580 – .600 (14.73 – 15.24) EJECTOR PIN MARKS .105 – .125 (2.67 – 3.18) DIA 3° – 7° .104 – .145 (2.64 – 3.68) .170 (4.32) MAX .780 – .800 (19.81 – 20.32) BOTTOM VIEW OF TO-3P HATCHED AREA IS SOLDER PLATED COPPER HEAT SINK NOTE: 1. DIMENSIONS IN INCH/(MILLIMETER) 2. DRAWING NOT TO SCALE 3. DIMENSIONS ARE INCLUSIVE OF PLATING 4. DIMENSIONS ARE EXCLUSIVE OF MOLD FLASH AND METAL BURR 5. MOLD FLASH SHALL NOT EXCEED .030" (.762mm) .042 – .052 (1.07 – 1.32) .074 – .084 (1.88 – 2.13) .215 (5.46) BSC .113 – .123 (2.87 – 3.12) .087 – .102 (2.21 – 2.59) .020 – .040 (0.51 – 1.02) P3 0512 REV A