95278-101-28

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Rectangular Connectors – Headers, Male Pins – are commonly used in a range of applications from industrial control systems to consumer electronic devices. This document is dedicated to the 95278-101-28 header from a manufacturer such as Molex Inc., and outlines the types of applications it is suited for and how this particular part works.

What is the 95278-101-28?

The 95278-101-28 is an engineered connector designed to allow for the transmission of power, signals and data in a variety of applications. It has a 3.96 mm pitch and consists of 42 signal pins in two rows, an additional 4 ground terminals in two rows, and two contacts for the mating housing. There is a key notch that can be used to mate with similarly keyed components to ensure the parts are correctly aligned. This type of connector is usually found in applications that require the transmission of several signals and power in digital designs and can streamline the design process in systems that have to custom fabricate their own wiring harnesses.

Specifications

The 95278-101-28 is designed for up to 4 W signal transmission, a current rating of 2 Amps and a temperature range between -40 to 80C. As a compression type connector, this particular part carries a voltage rating of 125 VAC. Dimensions are also important when selecting any connector, and this model has a width of 10.16mm and a length of 49.06mm. The individual pins are made from copper alloy coated with gold, and the housing is composed of nylon alloys.

Application Fields

The 95278-101-28 is suitable for a range of applications and is regularly used in industrial control systems, automotive electronics, telecommunications, computing systems, and consumer electronic devices. These can range from simple vacuum cleaners to more complex applications such as cars, or even spacecraft. As an example, the connector could be used to connect telemetry systems in satellites to cameras that collect data for transport back to ground stations.

Working Principle

Rectangular connectors such as the 95278-101-28 work on the principle of compression. That is, contact with the mating housing is achieved through pin and socket compression. As the connector is inserted, the connector pins are compressed against the mating material and a force spread across the resulting contact area creates a reliable electrical connection. This compression-style connection offers superior vibration and shock resistance when compared to other types of connectors, while also being resistant to dust and other debris.

In some cases, locking mechanisms may be added to provide additional protection when usage is in harsh environments or when the connector is expected to experience high levels of vibration. With the 95278-101-28, a locking notch in the housing ensures that the pins make contact and are held in place. Keyed housings can help prevent misalignment when connecting and prevent users from making costly mistakes.

Conclusion

The 95278-101-28 is a durable and reliable connector designed for a variety of applications. From industrial control systems to consumer electronics, its compression-style connection offers superior vibration and shock resistance, while its locking mechanism helps protect the pins. With its 3.96 mm pitch, 42 signal pins, 4 ground terminals, and a temperature range of -40 to 80C, the 95278-101-28 can handle a wide variety of data, power, and signal transmission.

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