What are MIL-DTL-83513 connectors?
Meet the Connector: MIL-DTL-83513
MIL-DTL-83515 specifies the requirements for micro-D connectors used in military applications.
MIL-DTL-83513 is a detailed specification controlling dimensions, materials, performance, and testing of plastic and metal shell micro-D connectors. This specification applies to micro-D connectors used in military applications, although because of their ruggedness, micro-Ds are also found in many industrial and other harsh environment applications, like geophysical and medical equipment.
Size: Typically, these connectors are half the size of standard D-Subminiature connectors with contacts on .050 inch (1.3 mm) centers.
Layouts: Eight standard layouts (9, 15, 21, 25, 31, 37, 51, and 100 pin).
PCB termination: Straight printed circuit board, right angle printed circuit board, narrow profile right angle printed circuit board.
Wire termination: Products are available with pre-terminated insulated or uninsulated leads in a variety of wire colors and lengths based on customer specifications. They are also available in solder.
Some of the specifications outlined in MIL-DTL-83513
Shells: Die cast or extruded aluminum type A380 in accordance with ASTM B85, or bar stock aluminum in accordance with ASTM B 221, or aluminum alloy 2024 in accordance with SAE AMS-QQ-A-250/4 or 6061, in accordance with SAE AMS-QQ-A-200/8 or SAE AMS-QQ-A-250/11 or 7075 in accordance with SAE AMS-QQ-A-200/11 or SA
Finishes: Class M. Must withstand 48-hour salt spray.
A – Pure electrodeposited aluminum in accordance with MIL-DTL-83488, type II, color shall be nonreflective
C – Cadmium in accordance with SAE-AMS-QQ-P-416, type II, class 3. A suitable underplate is permissible for aluminum shells when cadmium plating is used.
K – Zinc nickel in accordance with ASTM B841 over a suitable underplate
N – Electroless nickel (space applications only) in accordance with SAE AMS2404, class 3 or 4, .0005 inch minimum thickness or ASTM B733, class 3 or 4, service code SC2 for space applications only.
P – Passivated stainless steel
T – Nickel fluorocarbon polymer, High phosphate nickel with fluorocarbon polymer additive over a suitable underplate. Color shall be non-reflective. Finishes shall withstand 48-hour salt spray.
Temperature extremes: Low -55 °C +0, -3; High +125° C +3, -0
Interfacial seals: Made from silicone or fluorosilicone elastomer in accordance with A-A-59588 or SAE-AMS-R-25988.
Tin content: The use of pure tin is prohibited; tin content used in connector materials shall not exceed 97%. An alloy material must be chosen to inhibit the growth of tin whiskers.
Contacts: Nonremovable solder and crimp contacts. Contacts are either a unique twist pin or solid tube socket construction. The twist pin contact is constructed by welding seven wires together. Unlike regular D-sub contacts, pin contacts are housed inside the insulator to protect them from damage, while socket contacts extend from the socket insulator.
Shell polarization: Keystone shape shell design with polarization accomplished before engagement of the pins and sockets.
Mating and unmating force: The maximum force shall not exceed a value equal to 10 ounces times the number of contacts. Mating life is a minimum of 500 cycles.
Contact retention: Contacts for connectors shall be retained in the insulators by a 5-pound minimum force.
Dielectric withstanding voltage: Mated or unmated connectors shall show no evidence of breakdown or flashover when subjected to the test voltages and altitude. Corona shall not be considered.
Markets/Applications: Military, aerospace, industrial, navigation and guidance systems, smart munitions, downhole equipment (oil & gas), medical equipment, geophysical equipment, and other harsh environment applications.
Suppliers: Many suppliers offer MIL-DTL-83513 connectors, including AirBorn, Axon’ Cable, Bel Cinch, ITT Cannon, Mouser Electronics , Nicomatic, Omnetics Connector Corporation, PEI-Genesis, TE Connectivity, BTC Electronics, Glenair, Hermetic Solutions Group, Newark.