74192-090

Series:	Modulemate®
Packaging:	Tube
Part Status:	Active
Connector Type:	Header, Center Strip Contacts
Number of Positions:	90
Pitch:	0.050" (1.27mm)
Number of Rows:	2
Mounting Type:	Through Hole, Right Angle
Features:	Board Lock, Flange
Contact Finish:	Palladium-Nickel
Contact Finish Thickness:	15.0µin (0.38µm)
Mated Stacking Heights:	--
Height Above Board:	0.250" (6.35mm)

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Introduction

74192-090 is a series of connectors designed for use in edge mezzanine boards. It is a type of rectangular connector array which can provide an array of electrical connections between boards. This type of connector also includes board edge connectors, flex cables, and other connectors depending on the application. This document explores the application field and working principle of 74192-090 connectors.

Application Field

74192-090 connectors are used in a range of applications to provide a more reliable and durable connection than other types of connectors. The connectors are used in:

• Communications and networking systems
• Computer systems
• Medical devices
• Metering devices
• Industrial machines
• Robotics and automation
• Audio and video systems
• Military and aerospace systems
• Transportation and navigation systems

74192-090 connectors are specifically designed for edge mezzanine boards in these application areas, providing a reliable long-term connection between the boards.

Specifications

74192-090 connectors are designed to meet a number of specifications, ensuring they meet the demands of many different applications. Some of the specifications for 74192-090 connectors include:

• Number of contacts – 144 contacts per connector, split into 3 x 48 contact sections
• Contact size – 0.38mm pitch
• Contact resistance – 8 mΩ max.
• Contact current – 0.5A (2A max. for bias)
• Insertion and withdrawal force – 44N max.
• Vibration resistance – 10-55 Hz, double amplitude 1mm
• Durability – 100 mating cycles
• Operating temperature range – -55°C to +105°C

The specifications of the connector ensure that it is suitable for use in a variety of applications, including those with potentially harsh environmental conditions.

Design

The 74192-090 connector is designed to provide an efficient and reliable connection between the two boards it connects. It is designed with a modular system, meaning sections can be removed and added as required for a custom solution. The connector is composed of three sections. The first section contains 48 contacts at 0.38mm pitch, which connects to the main board. The second section connects to a patch board and contains a further 48 contacts with 0.38mm pitch. The third section contains 48 contacts with 0.45mm pitch, which connects to a flex cable or another board. The contacts for the connector are made of phosphor bronze and the housing is made of Zinc Nickel TAC (plated for long-term reliability in almost any environment). The flexibility of the design enables this connector to be customized for different applications.

Working Principle

When the 74192-090 connector is in use, current is supplied to the contacts in the first heavy section, travelling to the second section which is connected to a patch board. The current then travels along the contacts in the second section and is supplied to the contacts in the third light section, eventually reaching its destination. The design of the connector ensures that the current flow is reliable and eliminates the need for any further relaying, as the current is able to move freely between the sections and the destination point. This helps to reduce time and cost in the application, whilst ensuring a reliable connection.

Conclusion

The 74192-090 connectors are a reliable and efficient solution for connecting edge mezzanine boards and other board types. They can be used in a variety of applications and offer a long-term solution which is designed to meet a range of specifications. The connector’s design also ensures that it is easy to customize, making it a suitable choice for a range of applications.

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