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ESQT-142-02-H-5-375 Rectangular Connectors – Headers, Receptacles, Female Sockets

The ESQT-142-02-H-5-375 connecting system is a family of Rectangular Connectors – Headers, Receptacles, Female Sockets that are used in an array of products and applications. It is a versatile and reliable connection system available in various sizes and custom configurations. It features 10.5mm or 12.7mm centerline spacing and accommodates high-speed differential or single ended signals.

The ESQT-142-02-H-5-375 connector family is designed for a variety of applications including board-board, board-cable, wire-board, and optical connections. It is suitable for use in data and telecommunications, instrumentation, factory automation, medical, test and measurement, military and aerospace, automotive, and audio/video applications. Some of the product benefits include high power density, dense array designs, easy mating and unmating with dual latches, robust construction, no RF emissions due to metal/plastic shell combination, and despriction acceptability.

ESQT-142-02-H-5-375 connectors feature precise and reliable connection, reduced insertion and with-drawal force, and improved vibration resistance. The headers and receptacles are designed so that a mating pair have an automatic alignment mechanism and a dual-ended latch that ensures secure mating of the connectors. It has two-partmating system comprising a Header and a Receptacle. The Header, which is mounted on the printed circuit board, has two rows of contacts and comes with extra long contact tails for soldering. The Receptacle, which is mounted on the cable or board, has two rows of female contacts and comes with a keyed latching mechanism for secure and reliable mating.

The contacts of the ESQT-142-02-H-5-375 connectors are rated for up to 5A/contact at 10A/contact maximum. The contact material is high-performance copper alloy with gold plating. It has four mounting holes on the front of the header for secure PCB mounting and current capacity of up to 20A. The standard operating temperature range is -40 to +125°C. Its flammability rating is UL 94V-2 and contact resistance is 5mOhms max.

Working Principle

The ESQT-142-02-H-5-375 connector operating principle is based on the mechanical properties of its components and their arrangement. The contact surface is made of contacts that are specifically optimized to match the application. A contact mating sequence ensures that all contacts make reliable electrical connection. Additionally, a dual latching system helps hold the connectors together to ensure a secure connection.

During operation, the header is provided with a sliding de-mating mechanism that helps prevent accidental disconnection. The latching system on the Receptacle side helps hold the connectors together until a single latch disengagement releases both sides for easy de-mating. The contact surface is provided with a recessed latching surface and a pressure guide that centers the connector during mating. The recessed latching surface produces optimum mating clearance, and the pressure guide ensures contact pressures are optimized during assembly.

The ESQT-142-02-H-5-375 connectors feature multiple pins for signal and power connections. It utilizes a wide range of contact configurations including circuit sizes from 2 to 20 pins, grounding, grounding per channel, and keying configurations. Additionally, the connectors are sealed to a minimum of IP67 rating and MIL-STD-883 rated for shock and vibration. The keyed latching feature of the connectors helps sustain a secure electrical connection.

Conclusion

The ESQT-142-02-H-5-375 family of connectors is a versatile, reliable, and secure connection system suited to an array of applications and products. The connectors provide a high power density, tight contact spacing, robust construction, easy assembly and disassembly, along with a dual latch feature for secure mating and vibration resistance. Additionally, the connectors are rated for up to 10A/contact current capacity, have gold-plated contacts, and are sealed to a minimum of IP67.

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