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Rectangular Connectors - Housings

DMC-MA 20-22 AD Application Field and Working Principle

The DMC-MA 20-22 AD connector is an industrial-grade, rectangular housing connector that exhibits excellent mating durability and long-term service life. This type of connector is designed to meet performance and environmental requirements in demanding industrial applications. Its specialized design allows for an increased working life even when exposed to the harshest of outdoor environments.

The DMC-MA 20-22 AD is a combination of an externally sealed housing and internal structures composed of metals and non-metals like polyurethane and aluminum. This design provides superior mechanical and electrical performance, as well as solutions for complex wiring needs. The self-locking system on the connector increases the contact strength, thus providing reliable connections.

Physical Characteristics

The DMC-MA 20-22 AD has a wide range of features which make it one of the most versatile and reliable rectangular housing connectors. Measuring at 12.7 millimeters wide by 16.8 millimeters long by 9.8 millimeters high, the connector has a standard mounting and a tight tolerance of ± 0.1 millimeters. It has an operating temperature of -40°C to +85°C, a typical contact resistance of 20 milliohm, and a rated current of +12V DC.

The DMC-MA 20-22 AD connector is equipped with a dual-keyed system that eliminates mating mistakes. Its modular structure allows for the use of wired pins, which can be installed as required. Other features include clamps for easy cable assembly and locking inserts for secure cable retention.

Electrical Characteristics

The DMC-MA 20-22 AD is designed to meet common industrial requirements, such as extreme temperatures, high voltage, and low current. It offers excellent contact protection, high surge current performance, and high electromagnetic interference (EMI) protection. Its electrical characteristics offer efficient data transmission and reliable, stable performance.

The DMC-MA 20-22 AD connector has a current rating of 4.5A (max) and a voltage rating of up to 120V DC. It also has a capacitance of 0.22pF, contact resistance of less than 20 milliohm, and a dielectric withstanding voltage of 400V AC.

Working Principle

The DMC-MA 20-22 AD connector is designed to provide maximum efficiency in electrical and mechanical performance. Its self-locking feature ensures the connector and its components remain secure while in use. The combination of a metal and non-metal construction makes the connector impervious to external elements, such as vibration, dust, and moisture. Additionally, the connector is designed to support high-frequency data transmission, which makes it suitable for a variety of applications.

In terms of mating the DMC-MA 20-22 AD, the connector requires a two-step operation. First, the connector shell must be inserted into the mating components. Then, the wiring and contacts are mated into the shells. The dual-key feature ensures that connections are made correctly in the right orientation and reduces the potential for broken connections. Finally, the locking system secures the contacts in place and prevents them from loosening or disconnecting.

Applications

The DMC-MA 20-22 AD connector is an ideal choice for harsh industrial applications, outdoor environments, and industries that require high-frequency data transmission. Its excellent mechanical performance, robust design, and stable electrical characteristics make it suitable for various applications, including telecommunications, computerized machinery, and automotive electronics. The connector can also be used in distributed control systems, production plants, robotics, and optical fiber networks.

Overall, the DMC-MA 20-22 AD is an all-in-one industrial-grade, rectangular housing connector. It is specifically designed to provide long service life even in extreme conditions and to meet the most demanding of applications. Its simple design makes it easy to use, and its dual-keyed system ensures the connection remains secure and reliable.

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