A backshell is the rear portion of a connector which is normally a separate section from the connector head. It is used to secure the cable to the end of the connector in order to relieve strain on solder and crimp joints and also shields against electrical interference (EMI/RFI), mechanical injury or physical damage due to environmental conditions.
All of Nicomatic’s DMM connectors and backshells are tested to meet the stringent requirements of MIL-DTL-83513G. Their transfer impedance is under 200 mΩ from 10 kHz to 400 MHz, which allows them to offer excellent, clean data transfer from an emitting device to a receptor.
There are two available designs for these backshells: split and mono. The split backshells are designed as a two-piece nickel-coated aluminum shell. The shell cable entry can be either elliptical or circular in shape, allowing a large number of cables or a mixed layout design. Split backshells do not carry the fixing hardware; as a result they are easy and quick to assemble and are fully compatible with all Nicomatic DMM connectors.
Mono backshells are one-piece solid nickel-coated aluminium and the cable entries are elliptical in shape. Mono backshells carry the fixing hardware. They are compatible with medium-profile, long-shell DMMs.
For industries that require a more rugged design, such as aerospace and defence, backshells enhance the strength and protection of DMM connectors. They also provide design flexibility as the contacts can easily be replaced on the cable inside the connector as opposed to backpotting.
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