SSQ-121-03-T-D-RA

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Rectangular Connectors - Headers, Receptacles, Female Sockets are widely used in electronic applications. They are often found on printed circuit boards, providing a reliable and solid connection between components. One of the most common types is the SSQ-121-03-T-D-RA, a thru-hole rectangular connector used for a variety of applications. In this article we take a look at the application field and working principle of the SSQ-121-03-T-D-RA rectangular connector.

The SSQ-121-03-T-D-RA can be easily identified by its size. It measures 12.1mm by 9.7mm, and is equipped with three pins with a blade and dimple connections. The pins are spaced at intervals of 4.5mm. This type of connector is usually sold in bulk, in blocks of 40 or 120 depending on the specific model.

The SSQ-121-03-T-D-RA is most often used in PCB applications. It is typically used to quickly and securely connect various components to the board. For example, in a motor controller system, the SSQ-121-03-T-D-RA can be used to easily connect the motor’s driver board, breakout board, power supply, and other components. It can also be used in LED lighting circuits, ATM machines, and other electronic devices.

The SSQ-121-03-T-D-RA connector works on the principle of electromechanical connection, which is based on the force between two metal pins that are pressed together. When power is applied to the SSQ-121-03-T-D-RA connector, the pins come into contact and the electrical connection is established. This connection is then reinforced by the dimple feature of the pins. The dimple on the blade contacts the dimple on the receptacle, which provides additional force to ensure a secure and reliable connection. Additionally, the use of solder can help improve continuity between the two pins.

The primary benefit of using the SSQ-121-03-T-D-RA connector is its versatility. It is a low-cost solution, and can be used in various applications due to its size and number of pins. Additionally, it is relatively easy to install, with only a few simple steps required. It is also a reliable connector, with a contact resistance of less than 0.03 ohms, a rated current and amperage of 1.8A, and a voltage rating of 30V.

In summary, the SSQ-121-03-T-D-RA rectangular connector is a versatile and reliable connector, commonly used in PCB applications. It is small in size, easy to install, and provides a secure and reliable connection. Additionally, it has a low contact resistance and can handle a wide range of voltages and currents. Due to these features, the SSQ-121-03-T-D-RA is widely used in various electronic applications.

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