1975250000

Mounting Type:	Through Hole
Screw Thread:	M3
Torque - Screw:	0.5-0.6 Nm (4.4-5.3 Lb-In)
Screw Material - Plating:	--
Clamp Material - Plating:	--
Contact Material - Plating:	Copper Alloy - Tin Plated
Housing Material:	Thermoplastic, Wemid
Operating Temperature:	-50°C ~ 120°C
Color:	Orange
Features:	Interlocking (Front, Rear, Side), Mid Wire Entry Level
Wire Termination:	Screw - Clamping Yoke, Tension Sleeve
Series:	Omnimate LL
Wire Gauge:	12-28 AWG
Voltage:	300V
Current:	20A
Mating Orientation:	Horizontal with Board
Pitch:	0.197" (5.00mm)
Positions Per Level:	2
Number of Levels:	1
Part Status:	Active
Packaging:	Bulk

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< div >< p >Terminal blocks are electrical connectors used in industrial applications. They include both wire-to-board (WTB) styles, which connect two pre-determined junction points on a PCB (printed circuit board) using wire leads, and wire-to-wire (WTW) styles, which connect two wires without the use of a PCB. WTB terminal blocks are designed to securely attach wires to a PCB while protecting them from shorts and other commonly encountered electrical hazards.< p >An WTB terminal block consists of a base, which is usually made of an electrically insulating material such as phenolic resin, and an electrically conductive insert which goes into the base and provides the electrical contact between the wire and the board. The base and insert can be either a one-piece design or two separate pieces which are then joined together. The base typically has two pins which protrude through the board and act as the connection points between the wire and the board. The insert typically has two rows of spring-loaded contacts which make contact with the two rows of pins on the board. The contacts are typically rated at 30A or higher.< p >WTB terminal blocks come in a variety of configurations and sizes. Some are designed for larger gauge wires, while others are intended for smaller gauge wires. Additionally, some blocks can be used to connect multiple wires in parallel, while others are designed to connect only one wire. Additionally, some blocks are available with a vibration-resistant design, while others are not. < p >The working principle of a WTB terminal block can be explained in three steps. First, the wire is inserted into the insert and the spring-loaded contacts make electrical contact with the two rows of pins on the board. Second, an insulation sleeve is then put over the insert and the base, thus insulating the wires from each other and preventing shorts. Finally, the wire and the board are secured together using a screw or a compression nut, depending on the particular design of the block. < p >In conclusion, WTB terminal blocks are an efficient and reliable solution for connecting two pre-determined junction points on a PCB. They have a wide variety of sizes and configurations, allowing for the connection of multiple wires in parallel or the connection of a single wire. Additionally, they are designed with a high degree of vibration resistance, allowing for secure and robust connections even in high vibration applications.

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