ESQT-139-02-G-Q-309

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:	0.541" (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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Rectangular connectors come in many different forms, shapes, sizes, and styles, but all generally utilize one of two basic types of connection, headers and receptacles. The most commonly used type of rectangular connectors is the header, which is essentially a single plug that is commonly used to connect two plugs in an electrical system.The standardized ESQT-139-02-G-Q-309 is a rectangular header with two pins. Its physical form factor is in accordance to the industry specific DIN-41612 standard. This type of header is generally used in the automotive, telecommunications, and medical equipment industry, due to its various built-in protective features such as anti-vibration and anti-shorting.The working principle behind the ESQT-139-02-G-Q-309 header is simple. The two pins on the header connect the two plugs of a circuit. The electrical contacts on the pin\'s surface provide a mechanically secure connection that can be used to provide power, transmit digital information, or control signals.The ESQT-139-02-G-Q-309 header also has a variety of features that make it particularly suitable for use in the automotive, telecommunications, and medical equipment markets. One such feature is its 2-hole mounting, which makes the header particularly easy to mount onto components and simplifies the installation of multiple headers. The header also has improved energy- and signal-transfer characteristics thanks to its specialized contacts and contact slots. This provides excellent mechanical stability and allows for increased electrical signals transmission rate and performance.The ESQT-139-02-G-Q-309 header has a specialized latching mechanism that prevents accidental disconnection. Additionally, it has strain relief features that reduce the mechanical stresses that could otherwise be induced during normal operation. Finally, the header has also been designed with sealed contacts to prevent corrosion and keep its contacts from becoming contaminated.The ESQT-139-02-G-Q-309 header is certified for use in a variety of electronic equipment across a number of industries. It has been designated as an RoHS compliant product, which means that it is safe for use in medical and consumer electronic products. With its various features and compliance with safety guidelines, the ESQT-139-02-G-Q-309 header is a preferred choice for many industries as an economical and reliable rectangular connector.

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