Case Outline and Dimensions - TO-258AA 0.12 [.005] A 4.19 [.165] 3.93 [.155] 21.20 [.835] 20.70 [.815] 17.95 [.707] 17.70 [.697] 37.00 [1.457] 20.40 [1.197] 1 19.05 [.750] 12.70 [.500] 2 2X 1.14 [.045] 0.88 [.035] 13.97 [.550] 13.46 [.530] 3 B C 5.08 [.200] 3X 3.55 [.140] 1.65 [.065] 1.39 [.055] 0.50 [.020] C A 0.25 [.010] C NOT ES : 1. 2. 3. 4. 6.85 [.270] 6.09 [.240] 17.65 [.695] 17.39 [.685] DIMENS IONING & T OLERANCING PER AS ME Y14.5M-1994. ALL DIMENS IONS ARE S HOWN IN MILLIMET ERS [INCHES ]. CONT ROLLING DIMENS ION: INCH. CONFORMS T O JEDEC OUT LINE T O-258AA. B PIN AS S IGNMENT S 1 = DRAIN 2 = S OURCE 3 = GAT E