7261

Series:	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Accessory Type:	Jackscrew Socket
Moisture Sensitivity Level (MSL):	--
For Use With/Related Products:	D-Sub Connectors
Length - Threaded Portion Below Head:	0.250" (6.40mm)
Thread Size:	4-40 Socket, 4-40 Screw

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D-Sub, D-Shaped Connectors Accessories - Jackscrews

D-sub connectors are commonly used as connectors for electrical and electronic components or for connecting various types of computer peripherals. The use of jackscrews to secure the connection provides a reliable connection and can also serve as a grounding point.

7261 Application Field And Working Principle

The 7261 series of D-sub connectors is a high-density, board-mounted connector with a proven push-on termination technique. Its design uses two thermoplastic housings with contacts to provide connections between two printed circuit boards. It also features jackscrews, which are small screws used to secure the housing together and provide electrical grounding.The jackscrews are not usually necessary for making a connection, as the mating of the two housings is enough to create a current path. However, they are useful when connecting multiple printed circuit boards, where signal paths may have a higher potential for interference. The jackscrews, when used together with the grounding wires, provide an extra layer of protection from potential interference. The jackscrews are designed to provide a secure connection, and ensure that the housings cannot be disconnected without first unscrewing the jackscrews. This prevents accidental disconnection in the field, and provides a robust system that is dependable and proven.When connecting two printed circuit boards, the connectors should first be aligned and held firmly in place. The jackscrews are then inserted through the housing and into the mating board, and tightened using a wrench or similar tool. The jackscrews are then tightened until they are securely fastened. This ensures that the connection is secure and will not become disconnected.

Advantages

The use of jackscrews to secure the connection of the two housings has a number of advantages. Firstly, it provides a secure and reliable connection. The additional protection from potential interference provided by the grounding wires also ensures that the connection is robust and dependable. Furthermore, the added security of the jackscrews ensures that the connection is not inadvertently disconnected in the field.

Disadvantages

The main disadvantage of the jackscrews is that they require manual tightening. This can be a time-consuming process, especially when connecting multiple printed circuit boards. In addition, the jackscrews can be difficult to access and difficult to remove. This can be particularly problematic when the connections need to be disassembled or reused.

Conclusion

The 7261 series of D-sub connectors offers a reliable and secure connection through the use of jackscrews. The jackscrews provide an additional layer of protection against potential interference and ensure that the connections are secure. Although the use of jackscrews can be time-consuming, it provides a dependable connection system that is proven and trusted.

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