SSQ-121-03-S-D

Rectangular connectors are useful for a variety of applications due to their variety of shape and size options. Rectangular connectors are used for both signal and power distribution and their design allows for high packing density of contacts in a small area. This article will discuss the SSQ-121-03-S-D connector in particular and its application field and working principle.

Application Field

The SSQ-121-03-S-D connector is a rectangular connector primarily used in the telecommunications industry and, as such, it is designed with a small but reliable level of contact density. It is suitable for inner board connection and board-to-board applications where reliability and signal integrity are key. Other applications where the SSQ-121-03-S-D connector is used includes consumer electronics, computers, medical equipment, machines and industrial control, and power tools.

Working Principle

The SSQ-121-03-S-D connector is a 2-part connector system consisting of three rows of 12 contacts each. It features stacking height for additional board connections and provides for 50Mil (12.7mm) pitch contact spacing in both vertical and horizontal orientations. The contacts of the SSQ-121-03-S-D connector are machined from gold plated brass for reliable electrical connection and corrosion resistance. The contacts are held in place with a snap-in feature and the receptacles accept a wide range of pin sizes.

The SSQ-121-03-S-D connector features a two-piece design, allowing for quick and easy assembly in the field. The contacts are soldered onto the printed circuit board first, followed by the header. The header is designed with a keyway and can only be assembled in one orientation, ensuring the correct mating of the pins. The pins are shrouded, providing electromagnetic interference (EMI) and radio frequency interference (RFI) protection.

The SSQ-121-03-S-D connector is also designed with an integrated latching mechanism, which helps to securely lock the connector into place. The latching mechanism ensures contacts are properly seated and delivers a reliable connection every time. This also prevents the connector from being inadvertently disconnected, further increasing the reliability of the connection.

Conclusion

The SSQ-121-03-S-D connector is a reliable, compact rectangular connector that is suitable for a variety of applications. Its two-piece design allows for quick and easy assembly in the field and its latching mechanism ensures a secure, reliable connection every time. Additionally, its contacts are machined from gold plated brass for reliable electrical connection and corrosion resistance, ensuring a high-performance connection even in extreme or highly-dynamic environments.