74221-091

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Rectangular Connectors - Arrays, Edge Type, Mezzanine (Board to Board) are a versatile type of connector intended for diverse applications ranging from high-speed data transmissions, to heavy-duty power connections. The 74221-091, also known as the DF14 Series, is a mezzanine (board-to-board) connector specifically designed for rugged mezzanine, backplane, and multi-level board structures. This connector can accommodate a wide range of cutouts and hand soldering processes.

Application Field

The 74221-091 is designed for use in multiple types of applications, such as backplane and mezzanine applications, cell phone housings, industrial process control equipment, digital audio and telecommunication systems, medical imaging equipment, and other high-end consumer electronics. It is well-suited for applications requiring robust board-to-board connection in adverse environments.

Working Principle

The 74221-091 consists of two types of contacts: polarised insulation displacement contacts, and dual beam spring contacts. These contacts are soldered to the74221-091 connectors with an array of pins on one side and a corresponding array of openings on the opposite side. The pins of the connectors are inserted into the openings and a locking nut secures the connector in place. The two contact types are polarised; this means that the pins of one side of the connector must be properly aligned with the openings of the other side before the connector can be secured. The contacts of the74221-091 are designed to ensure a reliable and secure connection. The insulation displacement contacts provide reliable, stable electrical connection, while the dual beam contacts ensure good electrical performance and durability. The contacts also feature a locking mechanism that ensures the connectors remain secured during use.

The74221-091 is designed to meet stringent industry standards for performance and durability. It is fully compliant with IEC 61076-3-109, UL1977, CSA C22.2 No. 14, and EN45545 standards, providing reliable electrical performance in diverse environments. The connectors are also designed to withstand shock and vibration, corrosion, and extreme temperatures (-40°C to +105°C). Furthermore, the connectors feature gold-plated terminals, an optional dust protector, and a range of finish options.

In conclusion, the versatile design and rugged construction make the74221-091 a cost-effective solution for a wide range of applications. The connector is designed to ensure reliable connections in harsh conditions, and is compliant with a number of industry standards. With its efficient handling and secure connections, the 74221-091 is a reliable choice for board-to-board structures.

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