ESQT-139-02-MM-Q-309

Insulation Color:	Black
Contact Finish Thickness - Post:	--
Contact Material:	Phosphor Bronze
Contact Shape:	Square
Insulation Material:	Liquid Crystal Polymer (LCP)
Applications:	--
Voltage Rating:	--
Current Rating:	4.5A per Contact
Features:	--
Ingress Protection:	--
Mated Stacking Heights:	--
Contact Finish - Post:	Tin
Material Flammability Rating:	UL94 V-0
Operating Temperature:	-55°C ~ 125°C
Contact Length - Post:	0.541" (13.74mm)
Insulation Height:	0.309" (7.85mm)
Series:	ESQT
Contact Finish Thickness - Mating:	20.0µin (0.51µm)
Contact Finish - Mating:	Gold
Fastening Type:	Push-Pull
Termination:	Solder
Mounting Type:	Through Hole
Row Spacing - Mating:	0.079" (2.00mm)
Number of Rows:	4
Pitch - Mating:	0.079" (2.00mm)
Number of Positions Loaded:	All
Number of Positions:	156
Style:	Board to Board or Cable
Contact Type:	Forked
Connector Type:	Elevated Socket
Part Status:	Active
Packaging:	Bulk

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Introduction

ESQT-139-02-MM-Q-309 is a type of rectangular connector in the Headers, Receptacles, Female Sockets category. This connector is designed primarily for use in applications that require high speed and current carrying capacity. It is available in both right angle and straight configurations. 

Application Field

The ESQT-139-02-MM-Q-309 is ideal for a variety of applications such as medical, automotive, aviation, telecom, networking, power, lighting, test & measurement, and instrumentation. It is typically used in high-density, high-speed applications where a reliable, rugged connection is desired.

Design

The ESQT-139-02-MM-Q-309 is constructed from flame retardant thermoplastic housing and silver-tin alloy contacts. It has a modular design which allows for a range of different configurations, including a variety of male and female sub-connectors. The contacts are designed for reliable and error-free connections even in high vibration environments. The housing is designed to provide EMI/RFI shielding and offers a high level of mechanical integrity.

Working Principle

The ESQT-139-02-MM-Q-309 rectangular connector is typically used in combination with circular connectors, providing a quick and easy way to transition between a circular connection and a rectangular one. Its modular design offers a wide variety of options and it is easy to assemble without the need for tools. It features male and female sub-connectors that snap into place and are held securely with a locking sleeve. The contacts are made from a silver-tin alloy which provides superior electrical characteristics, low insertion forces and high reliability.

Conclusion

The ESQT-139-02-MM-Q-309 is a rectangular connector designed for high current and high speed applications which require a reliable and rugged connection. It is available in both right angle and straight configurations and can be configured with a variety of configurations and sub-connectors. Its modular design provides a great deal of flexibility and it is easy to assemble without the need for tools. The contacts are made from a silver-tin alloy which provides superior electrical characteristics and reliable connections in high vibration environments.

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