ESQT-139-02-H-5-375

Insulation Color:	Black
Contact Finish Thickness - Post:	3.00µin (0.076µm)
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:	Gold
Material Flammability Rating:	UL94 V-0
Operating Temperature:	-55°C ~ 125°C
Contact Length - Post:	0.475" (12.07mm)
Insulation Height:	0.375" (9.53mm)
Series:	ESQT
Contact Finish Thickness - Mating:	30.0µin (0.76µm)
Contact Finish - Mating:	Gold
Fastening Type:	Push-Pull
Termination:	Solder
Mounting Type:	Through Hole
Row Spacing - Mating:	0.079" (2.00mm)
Number of Rows:	5
Pitch - Mating:	0.079" (2.00mm)
Number of Positions Loaded:	All
Number of Positions:	195
Style:	Board to Board or Cable
Contact Type:	Forked
Connector Type:	Elevated Socket
Part Status:	Active
Packaging:	Bulk

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Rectangular Connectors - Headers, Receptacles, Female Sockets

ESQT-139-02-H-5-375 Application Field and Working PrincipleRectangular Connectors are used in most applications requiring a fast reliable connection of two electrical components. The ESQT-139-02-H-5-375 is one such type of connector and is a popular choice for applications involving data and signal transfer. Its application field and working principle are as follows.

Application Field

The ESQT-139-02-H-5-375 Rectangular Connector featuring headers, receptacles and female sockets is suitable for use in many different electronic components and systems including:

• Audio and Video Equipment
• Data Processing and Communications
• Computer and Computer Peripherals
• Motor Control Equipment
• Medical Instruments
• Security and Measurement Systems
• Sensor and Actuator Connections

These connectors are also popular in hobbyist projects and DIY electronics. They are designed for internal or external use and can provide a strong, secure connection for either low voltage circuits, or a high voltage, high frequency link.

Working Principle

The ESQT-139-02-H-5-375 Rectangular Connector consists of two components, the header and the female socket. The two components feature gold-plated contacts for optimum signal transfer and are designed to ensure an electrical connection is made with no misalignment between the two components.The header is the male connector and is fitted with pins in a row. These pins create the contact points, while the female sockets housings feature slots through which the pins fit. The pins fit into the slots with a tight but flexible grip, ensuring the contacts remain aligned even when subject to stresses, strains and vibration.When the pins and socket are engaged, they make electrical connection between the two components. This is accomplished through a mechanism known as ‘surface contact’, in which the two components make contact with one another using Gold-plated contact surfaces. This type of contact ensures strong and low electrical resistance connection, a property not achievable using other connector types.In order to ensure the electrical connection is reliable and long-lasting, special contact clips are available for the ESQT-139-02-H-5-375 Rectangular Connector, which secure the two components together when installed. These clips guarantee a secure connection while also enhancing the contact’s EMI (Electromagnetic Interference) shielding capabilities.

Conclusion

The ESQT-139-02-H-5-375 Rectangular Connector is designed to create strong, low-resistance, reliable electrical connections between two electronic components. Its header and socket design allow it to make contact with the female socket via gold-plated contact surfaces, while contact clips provide extra security and EMI shielding. The connector is suitable for use in a variety of electronic applications, including audio and video equipment, data processing, communications, computer peripherals, motor control and medical instruments.

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