78538-204HLF

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Rectangular Connectors - Headers, Male Pins

Rectangular connectors, also called headers or male pins, are an array of cylinder-shaped pins that are used to interconnect an electronic device to the printed circuit board (PCB) during its assembly. They come in many standard sizes and most commonly feature a square or rectangular pattern of pins in rows or columns. 78538-204HLF is a typical rectangular connector for use in a variety of applications.

78538-204HLF Application Field

The 78538-204HLF header is a popular 4-pin connector typically used to connect a PCB to an external device or power source. Each header features four cylindrical pins that are either threaded or friction-locked in place. The pins are arranged in rectangular or square patterns that allow the connector to fit into small spaces. The 78538-204HLF header has been used in a variety of applications including automotive, industrial, consumer, and medical equipment.

The 78538-204HLF header is also widely used in personal computers (PCs) for connecting external devices such as keyboards, mice, and game controllers. It is also used in home theater systems and sound systems to connect speakers. Additionally, the header can be used to connect other devices such as cameras, probes, and flash drives.

78538-204HLF Working Principle

The 78538-204HLF header has a typical working principle. Each pin features two metal contacts that connect to an electrical circuit. When these contacts are touched, they create a bridge for electricity to pass through. Protruding from the center of the connector are the four cylindrical pins. Each pin is fitted with a rubber bushing or insulator, which serves as a buffer between the metal contacts and the pins.

When the 78538-204HLF is inserted into the PCB, the pins make contact with the electrical traces of the PCB. A seal is created by the rubber bushing and the insulating material of the PCB, which ensures that the contacts of the pins remain in parallel. Therefore, electricity can pass through the connector without any leakage.

Once the connector is inserted into the PCB, it is secured in place by the use of a locking mechanism. Depending on the type of connector, the locking mechanism can either be a spring clip, thumbscrew, or locking latch. The locking mechanism prevents the connector from becoming loose or falling out due to vibration or shock.

Conclusion

The 78538-204HLF rectangular connector is widely used in a variety of applications due to its flexibility and versatility. It features 4 cylindrical pins that are either threaded or friction-locked and arranged in rectangular or square patterns. Additionally, the connector comes with an integrated locking feature to ensure that it stays securely in place once it is inserted on to the PCB. With its standard design, the 78538-204HLF is an ideal choice for applications that require reliable connections.

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