Shell Material, Finish:	Aluminum, Yellow Chromate Cadmium Plated
Backset Spacing:	--
Contact Material:	Copper Alloy
Wire Gauge:	--
Housing Material:	Liquid Crystal Polymer (LCP)
Contact Form:	--
Color:	--
Voltage Rating:	--
Operating Temperature:	-55°C ~ 125°C
Current Rating:	3A
Material Flammability Rating:	--
Ingress Protection:	--
Contact Finish Thickness:	--
Contact Finish:	Gold
Series:	83513-Style Micro D Metal Shell (MDM)
Features:	Shielded
Termination:	Solder Cup
Flange Feature:	Housing/Shell (Unthreaded)
Mounting Type:	Panel Mount
Contact Type:	Signal
Shell Size, Connector Layout:	0.050 Pitch x 0.043 Row to Row
Number of Rows:	2
Number of Positions:	31
Connector Type:	Plug, Male Pins
Connector Style:	D-Type, Micro-D
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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D-Sub Connectors

D-sub connectors, also known as D-Subminiature connectors, are compact, multi-pin electrical connectors used to link computers and their peripherals. Primarily designed for accurate power and signal transmission, D-sub connectors are used in various industries such as consumer electronics, telecommunications, automotive, military and aerospace. Due to their widespread use and reliability, D-subs are one of the most popular connectors used today. The MDM-31PSB is a D-sub connector and its application field and working principle will be discussed in this article.

Application Field of MDM-31PSB Connectors

The MDM-31PSB is a D-sub mini connector designed for use in harsh environments. It is certified to IP68 and IP69K standards, making it resilient to shock, vibration, and water. It is commonly used in industrial automation, such as oil and gas, transportation, medical and IT equipment, military and aerospace applications. The MDM-31PSB has a variety of features that make it the ideal choice for these applications. It has two universal snap sizes that are suitable for different pin configurations. The pins are end-closed for a rigid and reliable connection. The overmolded boot fits firmly to the back of the connector and ensures a safe and secure connection. Additionally, the MDM-31PSB connector is corrosion-resistant and has a working temperature range of -40°C to 125°C.

Working Principle of MDM-31PSB Connectors

The MDM-31PSB is a two-piece connector and consists of a back shell and front shell. The back shell is the larger component and is used to secure the connector onto the application. It contains two integrated screws that enable the connector to be fixed securely onto the application. The front shell is the smaller component and is used to provide added protection to the pins located within the connector. It is made up of two plastic casings that fit together and secure the pins in position. The back shell also secures the front shell firmly in place.The MDM-31PSB connector has two contact styles; points and blades. The points contact style consists of copper alloy pins capable of contacting power and transferring data signals. It also has inserted or molded phosphor bronze blades which are used to provide electrical isolation and provide strain relief for cable stress. The contact points and blades are then inserted into corrugated slits within the connector and are held firmly in place with the use of a spring mechanism. This ensures that a reliable connection is established and maintained.

Conclusion

To conclude, the MDM-31PSB is a D-sub connector designed for use in harsh conditions such as shock, vibration, and water. It is ideal for industrial automation, such as oil and gas, transportation, medical and IT equipment, military and aerospace applications. It consists of a back shell and a front shell, both of which work together to provide a secure and reliable connection. Additionally, the MDM-31PSB connector has two contact styles; points and blades. This ensures that a reliable connection is established and maintained.

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