1779103

Series:	COMBICON MCV
Packaging:	Bulk
Part Status:	Active
Type:	Header, Male Pins, Shrouded (4 Side)
Number of Positions:	4
Positions Per Level:	4
Number of Levels:	1
Pitch:	0.138" (3.50mm)
Header Orientation:	Vertical
Plug Wire Entry:	--
Termination Style:	Solder
Mounting Type:	Through Hole
Current - IEC:	8A
Voltage - IEC:	250V
Wire Gauge or Range - AWG:	--
Wire Gauge or Range - mm²:	--
Color:	Black
Operating Temperature:	--
Contact Mating Finish:	Tin
Features:	Mating Flange
Material Flammability Rating:	UL94 V-0
Ingress Protection:	--
Screw Size:	--
Torque - Screw:	--
Wire Strip Length:	--
Contact Material:	--
Housing Material:	Liquid Crystal Polymer (LCP)
Contact Tail Length:	0.102" (2.60mm)
Insulation Height:	0.362" (9.20mm)

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Terminal blocks, also commonly known as headers, plugs and sockets, are a vital part of expert designers and engineers electronic equipment. For industrial, military and commercial applications, these types of electrical devices are often the backbone of power distribution, allowing for better control, efficiency and safety. This guide will guide you through the 1779103 application field and working principle of terminal blocks.Terminal blocks are specialized electrical connection elements used for the connection and termination of multiple conductors, and for connecting them to other devices, like switches, circuit breakers and more. They are often used to secure related wires together while eliminating the need for a larger more cumbersome space like a junction box. Terminal blocks are designed to accept wires up to a certain gauge or AWG size, making them truly versatile.Terminal blocks are available in various styles and sizes for different applications. For low level signals, general purpose terminal blocks are used. They are rated for use in temperatures ranging from 32 - 120ºF (0 - 49°C) and can handle maximum current up to 4 amps. For industrial applications, many terminal blocks are also designed for use at higher voltages and temperature ranges. When used with the proper wire gauges, these blocks can safely handle up to 30 amps.Terminal blocks are also found in various types and sizes, including traditional screw connections, spring-clamps, and quick-connects, all of which have their own specific working principles. Screw connections are the most common and simplest terminal blocks available. In this type, the wire is connected to the terminal block using a metal screw and nut. The terminal block is then secured by tightening the screw onto the nut at the desired tension. Spring-clamps provide a snap-on approach to connecting wires to the terminal block. This type of connection requires no tools for installation but provides an insulation barrier ensuring a secure connection. Quick-connects provide a secure connection without the need for proper crimping and are also considered one of the fastest and most convenient methods of terminal block connection.Terminal blocks are also now available in both DIN rail and PCB mount variants. DIN rail mounting has long been popular for industrial use thanks to its robustness and durability. This type of mounting is inserted into the DIN rail of an electrical enclosure or terminal box for simple and efficient wiring. PCB terminal blocks, on the other hand, are designed to mount directly to printed circuit boards (PCBs). These types of terminal blocks typically feature inspection windows that allows for quick visualization of the connection, and a dust-proof design for protection from corrosion and other environmental factors.In summary, terminal blocks, headers, plugs and sockets are essential electrical components for both industrial and consumer applications. With multiple types and sizes available, these terminals blocks are used to provide secure power distribution for a variety of purposes. Their general working principles are simple and straightforward and allow for quick and efficient wiring and connection. Although connectors are most commonly found on DIN rail mountings, PCB terminal blocks are now also available for use in more specific applications. By understanding the various features and principles related to terminal blocks, design engineers can become better equipped to create reliable and efficient electronic systems.

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