78940-520

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Rectangular connectors - headers, male pins - are a versatile and reliable tool often used in electronic equipment. The 78940-520 connector is a common model employed in many consumer and commercial products, from telephones to computers to medical equipment. This header can be found in applications that span multiple industries, making it an essential component in today\'s interconnected world.

Design

The 78940-520 header is an inline connector with a 2.54mm pitch and 2.54mm stacked pin spacing. It has a single row, with 20 positions for pins, each being 2.54mm square. The 78940-520 is made from UL 94V-0 rated nylon material and features gold-plated contacts. The comprehensive design allows it to be suitable for board-to-board, inline, and other connection applications.

Performance

The 78940-520 header is designed to perform in harsh environments, both indoor and outdoor. Its inner contacts are constructed with copper alloy and plated with gold finish to ensure a secure and reliable connection after multiple insertions and removals. It is compliant with all safety standards and RoHS regulation.

The 78940-520 is also designed to offer a secure physical connection along with high-performance electrical conductivity. The UL rated nylon material ensures an insulation rating of up to 250 volts. The gold-plated contacts offer excellent electrical connection, even in adverse conditions.

Using the 78940-520 also guarantees minimal signal loss. It is designed to function with a maximum current of 2A, for which no additional board modification is required. It has a contact resistance of no more than 3mΩ and insulation resistance of more than 100MΩ at 500Vdc.

Applications

The 78940-520 header enjoys widespread use in many industries. It is popularly used in the electronics, telecom, IT, medical, industrial, power supply, plus consumer and commercial products. It can be found in equipment like computers, routers, cable modems, telephones, medical electronics, power supplies, industrial control systems, and other electronic circuits.

Working Principle

The 78940-520 is a two-piece connector. It consists of a male and a female component, each with an array of pins. When connected, the pins of the two components make contact. The male components pins pass through the female component via holes in the base material and contact the contact points within. This ensures a secure and reliable connection.

The 78940-520 connector has several design features that help ensure proper and reliable electrical signal transmission. The contacts of the male and female components are designed in such a way that it ensures good contact force between connectors. The contacts are gold-plated to ensure a low contact resistance. The materials used for both the male and female components have also been optimized for long term use and reliability.

In addition, the 78940-520 connector has plastic walls that prevent improper mating and maintain an appropriate level of stress on the contacts. These walls provide physical insulation and also make inadvertent mating more difficult, which helps improve the safety of the connected circuit against short circuits.

Conclusion

The 78940-520 connector is a reliable and versatile component often used in a variety of electronic equipment. It provides security and high performance electrical conductivity. The UL rated materials and gold-plated contacts provide excellent long-term use and reliability. With its broad application range and easy to use design, it is one of the most sought-after rectangular connectors - headers, male pins.

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