1858057

Voltage - UL:	300V
Insulation Height:	0.437" (11.10mm)
Contact Tail Length:	--
Housing Material:	Polyamide (PA), Nylon
Contact Material:	--
Wire Strip Length:	7mm
Torque - Screw:	0.22-0.25 Nm (1.9-2.2 Lb-In)
Screw Size:	M2
Ingress Protection:	--
Material Flammability Rating:	UL94 V-0
Features:	Mating Flange
Contact Mating Finish:	Tin
Operating Temperature:	--
Color:	Green
Wire Gauge or Range - mm²:	0.14-1.5mm²
Wire Gauge or Range - AWG:	14-30 AWG
Series:	COMBICON IMC
Current - UL:	8A
Voltage - IEC:	320V
Current - IEC:	8A
Mounting Type:	Free Hanging (In-Line)
Termination Style:	Screw - Clamping Yoke (Tension Sleeve)
Plug Wire Entry:	180°
Header Orientation:	--
Pitch:	0.150" (3.81mm)
Number of Levels:	1
Positions Per Level:	4
Number of Positions:	4
Type:	Plug, Male Pins
Part Status:	Active
Packaging:	Bulk

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Terminal blocks, also known as headers, are used in many electrical and electronic circuits and systems. Headers are electrical components with two or more terminals, typically used for connecting internal circuitry or wiring harnesses. There are a variety of headers which can be used depending on the application.The types of terminal blocks and their application field and working principle are discussed in this article. Header blocks are the most commonly used type of terminal block. They are used to connect and hold together wires and other components. Headers consist of two parts, a block and a device such as a connector, also known as a plug or socket.Header blocks come in various designs and types and can be divided into two main categories, the surface-mount and through-hole terminal blocks. Surface-mount terminal blocks are designed to mount on the surface of the board and have a series of slots or tabs that provide the connections. Through-hole terminal blocks are designed to fit through the board and have soldering points for wire and component connection.Most headers are made of insulation material. The contact on a header block’s terminal can be made of a variety of materials such as brass or copper, and most commonly, gold-plated copper. The purpose of the contact material is to ensure a reliable and secure connection between the signal source and the receiving device.Many headers are also available in different sizes, allowing them to be used in a variety of applications, such as high-power applications, low-current applications, or standard signal-processing applications. Some header blocks are also available with a built-in shock-protection feature. These are designed to reduce signal disruptions when a device is exposed to mechanical shock or vibration.The primary working principle of headers is to connect and hold together multiple electrical elements, such as resistors, capacitors, Power transistors, ICs and other components. When the header is connected to the power supply, it allows electricity to flow in a safe and controlled manner. In some cases, headers also act as a routing pathway for electrical signals, allowing them to be sent from one point to another. This enables designers to route signals around obstacles and through tight spaces, creating a more efficient signal path.In addition to connecting components, headers also provide a variety of features, such as wire-handling and signal-protection features. Wire-handling features help to keep wires neat and organized, preventing them from becoming tangled and tangled up. They also provide strain relief for the wires, which ensure a reliable connection and prevent damage to the wires.Signal-protection features are designed to shield the signal from interference. This includes shielding from electromagnetic interference (EMI) and radio frequency interference (RFI). Shielded headers help to reduce signal noise, thus improving signal integrity.Terminal blocks are available in a range of materials to suit the needs of the application. Typical materials used for headers include plastics, metals, and ceramics. Each material has its own unique properties and benefits, such as resistance to temperature and corrosion, and strength. Therefore, it is important to choose the right material for the application.In conclusion, terminal blocks are an important component for many electrical and electronic circuits and systems. Their application field and working principle depend on the type of block used and the type of application. They are used to connect and hold together multiple electrical elements, provide routing pathways for signals, and provide signal-protection and wire-handling features. Selecting the right type of header and material is essential to ensure the function and reliability of the system.

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