637/638 SERIES D-Sub Connectors: Vertical, High Density Features: Plug and receptacle in 15, 26, 44, 62 or 78 contact sizes Pin and socket contact mating design with P.C. tail termination Metal shell provides EMI/RFI shielding, plug shell indents provide grounding and additional mating retention Grounding features include boardlock for exceptional retention to P.C. board Mounting options for panel mount or connector mating include through hole, threaded hole and threaded standoffs D-shaped connector mating outline provides polarization Design based on requirements of MIL-C-24038, EIA RS-232 and RS-449 High profile available in receptacle only Specifications: Insulator Material PBT with glass fiber, UL 94V-0, color: Black Contact Material Plug (pin): Brass Receptacle (socket): Brass or phosphor bronze Contact Plating Selective gold (see ordering code) over nickel for the mating area, tin plating for tail area Shell Material Nickel plated steel (optional tin plating) Current Rating 3 amps Contact Resistance 15 milliohms maximum Insulation Resistance 1000 megaohms minimum Dielectric Withstanding Voltage 500 V AC rms at Sea Level Operating Temperature -55C To +85C (upto +125C for high temp) Insertion Force 16 oz (4.45 N) Maximum Per Contact Position Withdrawal Force 1 oz (0.28 N) Minimum Per Contact Position Ordering Code: Contact P/N:Wire Gauge (AWG): 638-292-271 24 - 26 Contact P/N: Wire Gauge (AWG): 637-292-271 24 - 26 customerservice edac.net www.edac.net637/638 SERIES D-Sub Connectors: Vertical, High Density PLUG 637 SERIES STANDARD PROFILE CRIMP TYPE A0.35 B0.10 16.000.35 0.9 C0.15 6.00 2- 4-40UNC 6.100.35 4.0 REF 6.100.35 1 15 16 30 31 44 5.0 4.80.5 15~62 CONTACT 10-2 5.6 MAX 62 PIN 26 PIN 31.75 31.75 16.66 16.66 2.99 2.41 2.80 2.29 16.000.35 1 21 9 1 22 10 6.100.35 42 18 43 19 62 26 0.625 1.785 0.635 1.655 1.05-62 HOLES 2-3.05 1.05-26 HOLES 15 PIN 44 PIN 23.52 23.52 12.50 12.50 78 CONTACT 2.29 2.80 2.50 2.29 15 1 1 5 16 6 10 30 31 15 44 11 0.635 1.655 1.05-44 HOLES 1.40 0.89 1.05-15 HOLES 2-3.05 RECEPTACLE 638 SERIES STANDARD PROFILE CRIMP TYPE A0.35 B0.10 16.000.35 0.9 C0.15 6.0 4.0 6.100.35 6.000.35 2- 4-40UNC 1.6 1 15 16 30 31 44 4.80.5 15~62 CONTACT 5.6 MAX 10-2 26 PIN 62 PIN 31.75 31.75 16.66 16.66 2.41 2.99 2.29 2.80 16.000.35 1 21 9 1 6.000.35 22 10 42 18 26 62 43 19 1.655 0.635 1.785 0.625 1.05-26 HOLES 1.05-62 HOLES 2-3.05 44 PIN 15 PIN 78 CONTACT 23.52 23.52 12.50 12.50 2.29 2.80 2.29 2.54 15 1 1.05-15 HOLES 1 5 16 30 6 11 15 11 44 31 1.655 0.635 1.40 0.89 1.05-44 HOLES 2-3.05 C C NUMBER OF A B PLUG RECEPTACLE CONTACTS Inch (mm) Inch (mm) Inch (mm) Inch (mm) 15 1.213 (30.80) .984 (24.99) .666 (16.92) .642 (16.30) 26 1.541 (39.15) 1.312 (33.32) .994 (25.25) .970 (24.65) 44 2.087 (53.00) 1.852 (47.04) 1.534 (38.96) 1.512 (38.40) 62 2.728 (69.30) 2.500 (63.50) 2.182 (55.42) 2.157 (54.80) customerservice edac.net www.edac.net 3.96 3.96 8.480.15 7.900.15 3.96 3.96 3.96 3.96 3.96 3.96 12.600.25 12.600.25 3.20 REF 3.20 REF 3.96 3.96 15.400.25 12.600.25 15.400.25 12.600.25