22-Lead Plastic DIP Modified Pinout For Isolator [PDIP_DOUBLE] (ND-22-1) Dimensions shown in inches and (millimeters). a 0.550 (13.97) MAX 1.500 (38.10) MAX 0.440 (11.18) MAX SIDE VIEW 1 11 0.050 (1.27) 0.160 (4.06) 0.140 (3.56) 0.075 (1.91) 12 END VIEW 22 0.030 (0.762) 0.020 (0.508) 0.010 (0.254) 22 PLACES 0.100 (2.54) 0.350 (8.89) PIN 1 0.250 (6.35) SYSTEM *0.50 (12.20) BOTTOM VIEW FIELD 0.050 (1.27) 0.350 (8.89) *CREEPAGE PATH (SUBTRACT APPROXIMATELY 0.079 (2mm) FOR SOLDER PAD RADII ON PC BOARD. THIS SPACING SUPPORTS THE INTRINSICALLY SAFE RATING OF 750V. WAVE SOLDERING IS NOT RECOMMENDED.