DBMM9W4PD

D-Sub Connectors

D-Sub connectors are a type of electrical connector commonly used in computer and other electronic devices. They are most commonly used to connect devices such as monitors, keyboards, printers, and scanners. D-Sub connectors come in different sizes and are typically identified by the number of pins they contain, such as 9, 15, 25, and 37. The DBMM9W4PD is a common type of D-Sub connector.

Application Field

The DBMM9W4PD is a D-subminiature connector used to interconnect digital and analog signals in devices such as multimedia audio/video systems, industrial controllers, and transmit/receive equipment. It has 9 pins arranged in three rows of three, and is widely used in industrial control, communications, and other applications. The connector is designed to connect two printed circuit boards (PCBs) side by side mechanically and electrically, and can also be used in machinery and consumer electronics.

Working Principle

The DBMM9W4PD is a low-profile D-sub connector designed to work with standard PC boards sizes. It features two termination mechanisms: a “push-pull” latch at the odd-numbered pins and a threaded nut on the even-numbered pins. The connector also includes a lance and groove contact system to ensure that the pins make a gas-tight, electrical connection. This lance and groove contact system is designed to minimize contact impedance and ensure a consistent low contact resistance.

The DBMM9W4PD connectors consist of two mating parts: a standard 9-pin male connector and a female connector. The male connector is a flat metal shield and holds the odd-numbered pins, while the female connector has a metal sleeve and holds the even-numbered pins. The two connectors join together via the mating threads and secure into place through the latching mechanism of the odd-numbered pins.

The contact systems of the DBMM9W4PD connector are designed to ensure a reliable, clean electrical connection between the two parts. The contacts feature gold-plated phosphor bronze pins with a low-resistance surface, and are designed to reduce arcing and minimize corrosion. The contacts may also be soldered directly onto the PCB for increased durability and reliability.