Hermetic Packages for Integrated Circuits Metal Can Packages (Can) T8.C MIL-STD-1835 MACY1-X8 (A1) REFERENCE PLANE A 8 LEAD METAL CAN PACKAGE e1 L L2 L1 INCHES ØD2 4.19 4.70 - 0.019 0.41 0.48 1 Øb1 0.016 0.021 0.41 0.53 1 N Øb2 0.016 0.024 0.41 0.61 - ØD 0.335 0.375 8.51 9.40 - α ØD1 0.305 0.335 7.75 8.51 - ØD2 0.110 0.160 2.79 4.06 - k C L e BASE AND SEATING PLANE Q BASE METAL Øb1 LEAD FINISH Øb2 SECTION A-A NOTES: 1. (All leads) Øb applies between L1 and L2. Øb1 applies between L2 and 0.500 from the reference plane. Diameter is uncontrolled in L1 and beyond 0.500 from the reference plane. 2. Measured from maximum diameter of the product. 3. α is the basic spacing from the centerline of the tab to terminal 1 and β is the basic spacing of each lead or lead position (N -1 places) from α, looking at the bottom of the package. 4. N is the maximum number of terminal positions. 5. Dimensioning and tolerancing per ANSI Y14.5M - 1982. 6. Controlling dimension: INCH. 64 NOTES 0.185 1 β MAX 0.016 k1 Øb1 Øb MIN 0.165 Øe F MAX A A 2 MIN Øb A ØD ØD1 MILLIMETERS SYMBOL 0.200 BSC e1 0.100 BSC F - 0.040 5.08 BSC - 2.54 BSC - - 1.02 - k 0.027 0.034 0.69 0.86 - k1 0.027 0.045 0.69 1.14 2 L 0.500 0.750 12.70 19.05 1 L1 - 0.050 1.27 1 - L2 0.250 - 6.35 - 1 Q 0.010 0.045 0.25 1.14 - α 45o BSC 3 β 45o BSC 45o BSC 3 N 8 8 BSC 45o 4 Rev. 0 5/18/94