DBM21W1S

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D-Sub Connectors

A D-Sub connector is a type of electrical connector used in computer and other electronic equipments. D-sub connectors also known under various other names, such as DB connectors, D-sub connectors, or D-connectors. The design consists of a female and male connector, each containing several pins or sockets. The name of the D-sub type indicates the number of pins or sockets present on the plug. For example, D-sub connectors are classified as 7, 15, 25, 37, 50, or 95—each containing 7, 15, 25, 37, 50, and 95 pins or sockets, respectively. The shape of the D-Sub connector resembles the English language letter “D”; the male version has protruding metal pins that fit into the female sockets.

DBM21W1S Application Field and Working Principle

The DBM21W1S connector is a D-sub series manufactured and marketed by Hirose Electric Company. It is classified as a 9 pin or 9 socket D-sub connector, with it being smaller in size than other comparable 9-pin connectors in the market. The connector has a lockable type feature, which allows users to latch the connector onto the mating connector so as to secure it.

The DBM21W1S D-sub connector is typically implemented in areas where frequent disconnections and reconnections are involved. It is marketed mostly in the industrial sectors of automation, hydraulics, control system, and communication, in addition to other applications such as power generation and home automation. Furthermore, this model of D-sub connector also supports the hot plugging and hot swapping of the equipment.

The connector is internally shielded with tin plating steel so as to offer greater protection against external noise. Specialized molded coupler ensures resistance against vibrations and mechanical shock. It also has a wide operating temperature range and excellent performance under extreme environments. The connector is designed with standard or a half-pitch design, with the latter providing space savings.

In terms of electrical performance, the connector is rated to carry up to 3.75A of current. A top plastic cover is provided along with the connector, which helps secure the male connectors within the female sockets. It also comes with an insulation resistance of 500MΩ at 500V DC between contacts.

While most D-sub connectors are used for data, power, or control signals, the DBM21W1S is also suitable for use in transmitting audio signals. Furthermore, with its small form factor and low profile design, the connector is also suited for usage in medical device applications due to its compliance to stringent safety requirements.

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