ESQ-104-44-T-S-LL

Insulation Color:	Black
Contact Finish Thickness - Post:	--
Contact Material:	Phosphor Bronze
Contact Shape:	Square
Insulation Material:	Liquid Crystal Polymer (LCP)
Applications:	--
Voltage Rating:	550VAC
Current Rating:	5.7A per Contact
Features:	--
Ingress Protection:	--
Mated Stacking Heights:	--
Contact Finish - Post:	Tin
Material Flammability Rating:	UL94 V-0
Operating Temperature:	-55°C ~ 105°C
Contact Length - Post:	0.180" (4.57mm)
Insulation Height:	0.735" (18.67mm)
Series:	ESQ
Contact Finish Thickness - Mating:	--
Contact Finish - Mating:	Tin
Fastening Type:	Push-Pull
Termination:	Kinked Pin, Solder
Mounting Type:	Through Hole
Row Spacing - Mating:	--
Number of Rows:	1
Pitch - Mating:	0.100" (2.54mm)
Number of Positions Loaded:	All
Number of Positions:	4
Style:	Board to Board
Contact Type:	Forked
Connector Type:	Elevated Socket
Part Status:	Active
Packaging:	Bulk

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ESQ-104-44-T-S-LL Application Field and Working PrincipleRectangular connectors are widely used in communication systems and other transmission lines for ensuring reliable electrical connections between PCB (Printed Circuit Board) and electronic components in various kind of products. This article will discuss the application field and working principle of ESQ-104-44-T-S-LL, a specification of rectangular connectors - headers, receptacles, female sockets. ESQ-104-44-T-S-LL is a brand of high quality surface mount rectangular header connectors, consist of two parts, a female plug and a male receptacle. This series is commonly used in space-constrained environments and applications such as in LAN cards, server cards, wireless communication devices, monitoring systems and so on. It mainly features in high yield strength, high temperature soldering and current-carrying capability as well as excellent EMI and RFI noise attenuation.This series of rectangular connectors applies to the standard 104-pin soldering pin size and is made of UL approved thermoplastic material. Its mating parts have both insulation skirt and insulation post design. With its well-designed interface, it ensures reliable mating and unmating. The ESQ-104-44-T-S-LL connects two PCBs (Printed Circuit Boards), through two module boards electrically and mechanically.The working principle of ESQ-104-44-T-S-LL\'s is that each terminal within the plug and receptacle has metal contact that will create an electrical connection when mated. Moreover, some of the terminals on the receptacle side are also grounded which ensures the PC boards are well shielded from potential EMI interference. Furthermore, when unmated, each terminal within the plug provides a form fit to securely retain the contact in the sealed thermoplastic insulator.When it comes to the connection between the plug and the receptacle, a unique double cantilever corner to corner contact system is used to provide a very high level of contact lifetime durability and reliability. The contact system on ESQ-104-44-T-S-LL utilizes a \'power contact\' design whereby every contact has an integral TPA (Thermal Plastic Alloy) pin. The inserted end of every TPA pin is formed into a contact that is soldered to the printed circuit board. This design enables the pins to easily act as the strain relief to absorb any shock or vibration that may occur and prevent any damage to the interconnect of the two components.In conclusion, ESQ-104-44-T-S-LL is a great choice of high quality surface mount rectangular header connectors with high yield strength, high temperature soldering and current-carrying capability as well as excellent EMI and RFI noise attenuation. Its well-designed double cantilever corner to corner contact system ensures a high level of contact lifetime durability and reliability. The two modules it connects will be well shielded from potential EMI interference.

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