| Allicdata Part #: | 1781900-ND |
| Manufacturer Part#: |
1781900 |
| Price: | $ 4.39 |
| Product Category: | Connectors, Interconnects |
| Manufacturer: | Phoenix Contact |
| Short Description: | TERM BLOCK HDR 12POS 3.81MM |
| More Detail: | 12 Position Terminal Block Header, Male Pins, Shro... |
| DataSheet: | 1781900 Datasheet/PDF |
| Quantity: | 1000 |
| 50 +: | $ 3.99420 |
| Voltage - UL: | 300V |
| Insulation Height: | 0.272" (6.91mm) |
| Contact Tail Length: | 0.055" (1.40mm) |
| Housing Material: | Liquid Crystal Polymer (LCP) |
| Contact Material: | -- |
| Wire Strip Length: | -- |
| Torque - Screw: | -- |
| Screw Size: | -- |
| Ingress Protection: | -- |
| Material Flammability Rating: | UL94 V-0 |
| Features: | Mating Flange |
| Contact Mating Finish: | Tin |
| Operating Temperature: | -- |
| Color: | Black |
| Wire Gauge or Range - mm²: | -- |
| Wire Gauge or Range - AWG: | -- |
| Series: | COMBICON MC |
| Current - UL: | 8A |
| Voltage - IEC: | 250V |
| Current - IEC: | 8A |
| Mounting Type: | Through Hole |
| Termination Style: | Solder |
| Plug Wire Entry: | -- |
| Header Orientation: | 90°, Right Angle |
| Pitch: | 0.150" (3.81mm) |
| Number of Levels: | 1 |
| Positions Per Level: | 12 |
| Number of Positions: | 12 |
| Type: | Header, Male Pins, Shrouded (4 Side) |
| Part Status: | Active |
| Packaging: | Bulk |
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Terminal Blocks – Headers, Plugs and Sockets
Terminal blocks are an essential component of any circuit setup and they are designed to make the job of connecting electrical components very simple and streamlined. Terminal blocks are typically used to connect two or more wires within a circuit and they come in a variety of shapes and sizes that will accommodate different components in a variety of configurations. The terminal block is often an inexpensive, functional component that is often seen in the home or in industrial application.
Headers, Plugs and Sockets
The most common type of terminal block used for residential and commercial use is the header, plug and socket. They are typically manufactured in either plastic or metal and can come in both single and multiple pole varieties. The header typically has two poles that are separated by a middle section which helps to align the two wires for connection. The plug and socket is a slightly more common type of terminal block and is most likely to be seen in wiring applications or even in DIY wiring projects.
The plug typically consists of two separate contacts, one male and one female, which are often separated by a divider or gap that prevents the two from making contact. The socket is typically a more robust type of terminal block with multiple contacts and can easily be used to accommodate a range of different types of wiring. Plug and socket terminal blocks are often used in automotive applications or in medical equipment, where a secure connection between two wires is necessary.
1781900 Applications and Working Principle
Terminal blocks are used in a variety of applications and the most common is the connection of electrical equipment such as motors or compressors to AC power sources. In most cases, the terminal blocks will be installed between a control panel and the equipment, allowing for easy connection of the power source. In addition, terminal blocks are also used in industrial applications such as automation, train control, and machine control, as well as in a wide variety of other applications.
Terminal blocks, regardless of their form factor, facilitate the connection of two wires, and the required connection may be achieved by using either a traditional screw terminal or a pressure contact approach. The traditional screw terminal approach requires the user to tighten the screws to form a secure connection between the two wires, whereas the pressure contact approach requires the user to apply pressure to the contacts to create the contact force necessary to form the connection.
In addition, certain specialized terminal blocks such as insulation displacement connectors (IDC) provide an innovative contact system that eliminates the need to splice the wire, thus eliminating the potential for short circuits. IDC terminal blocks also provide a more secure connection and are often used in the automotive, industrial, and telecommunications industries.
Terminal blocks provide a wide range of benefits, including versatility, cost effectiveness, ease of installation, improved safety, and many others. They are an essential component of any wiring setup, and they play an important role in helping to ensure that electrical connections are safe and reliable. As such, they can provide a valuable and cost-effective solution for many wiring applications.
The specific data is subject to PDF, and the above content is for reference
| Part Number | Manufacturer | Price | Quantity | Description |
|---|
| 1781939 | Phoenix Cont... | 2.62 $ | 1000 | TERM BLOCK HDR 4POS 90DEG... |
| 1781069 | Phoenix Cont... | 10.61 $ | 84 | TERM BLOCK PLUG 10POS STR... |
| 3-178141-3 | TE Connectiv... | 2.38 $ | 1434 | CONN HDR 6POS VERT KEY-XY... |
| 178125-4 | TE Connectiv... | 0.32 $ | 9997 | U/POWER PLUG HSG 2P 7.29M... |
| 3-178137-2 | TE Connectiv... | 1.78 $ | 836 | CONN HDR 6POS R/A KEY-XY ... |
| 1-178129-6 | TE Connectiv... | 0.84 $ | 1194 | CONN RECEPT 5.08 6POS KEY... |
| 1-178138-3 | TE Connectiv... | 1.64 $ | 3938 | CONN HDR 3POS R/A KEY-X 3... |
| 2-178136-3 | TE Connectiv... | 1.64 $ | 1233 | CONN HEADR 3POS STR KEY-Y... |
| 3-178140-5 | TE Connectiv... | 1.3 $ | 415 | CONN HDR 6POS VERT KEY-XY... |
| 1781720000 | Weidmuller | 10.81 $ | 1000 | WDU 2.5 PACK |
| 1781220000 | Weidmuller | 1.82 $ | 1000 | WTW WF 6 EPOXY |
| 1-178139-2 | TE Connectiv... | 1.78 $ | 508 | CONN HDR 6POS R/A KEY-XX ... |
| 1781874 | Phoenix Cont... | 3.55 $ | 1000 | TERM BLOCK HDR 9POS 90DEG... |
| 2-178137-5 | TE Connectiv... | 0.57 $ | 1000 | CONN HDR 6POS R/A KEY-YY ... |
| 2-178139-3 | TE Connectiv... | 1.37 $ | 1000 | CONN HDR 6POS R/A KEY-YY ... |
| 1781942 | Phoenix Cont... | 2.88 $ | 1000 | TERM BLOCK HDR 5POS 90DEG... |
| 1781930000 | Weidmuller | 2.49 $ | 1000 | TERMINAL ZBW 1/3.5 |
| 10-88-1781 | Molex, LLC | 0.0 $ | 1000 | CONN HEADER 78POS .100 VE... |
| 3-178139-2 | TE Connectiv... | 1.78 $ | 3507 | CONN HDR 6POS R/A KEY-XY ... |
| 1-178141-3 | TE Connectiv... | 2.28 $ | 422 | CONN HDR 6POS VERT KEY-XX... |
| 2-178128-6 | TE Connectiv... | 0.88 $ | 1502 | CONN RECEPT 5.08 6POS KEY... |
| 2-178140-5 | TE Connectiv... | 1.3 $ | 1085 | CONN HDR 6POS VERT KEY-YY... |
| 2-178140-3 | TE Connectiv... | 1.44 $ | 1000 | CONN HDR 6POS VERT KEY-YY... |
| 178125-1 | TE Connectiv... | 0.23 $ | 8459 | CONN PLUG 2POS .156 IN-LI... |
| 1781890 | Phoenix Cont... | 4.17 $ | 1000 | TERM BLOCK HDR 11POS 3.81... |
| 1781913 | Phoenix Cont... | 2.1 $ | 1000 | TERM BLOCK HDR 2POS 90DEG... |
| 2-178136-2 | TE Connectiv... | 1.27 $ | 632 | CONN HEADR 3POS STR KEY-Y... |
| 1-178140-5 | TE Connectiv... | 1.3 $ | 1373 | CONN HDR 6POS VERT KEY-XX... |
| 1781580000 | Weidmuller | 4.99 $ | 1000 | HOOD COVER BLACK |
| 1781085 | Phoenix Cont... | 12.73 $ | 32 | TERM BLOCK PLUG 12POS STR... |
| 1-178140-3 | TE Connectiv... | 1.37 $ | 1000 | CONN HDR 6POS VERT KEY-XX... |
| 3-178140-2 | TE Connectiv... | 1.91 $ | 493 | CONN HDR 6POS VERT KEY-XY... |
| 1781040000 | Weidmuller | 5.7 $ | 1000 | JUMPER FOR WF 12 3POS |
| 178125-6 | TE Connectiv... | 0.12 $ | 1000 | U/POWER PLUG HSG 2P 7.292... |
| 1781111 | Phoenix Cont... | 14.46 $ | 1000 | TERM BLOCK PLUG 15POS STR... |
| 1781600000 | Weidmuller | 5.26 $ | 1000 | HOOD COVER BLACK |
| 1781680000 | Weidmuller | 5.74 $ | 1000 | HOOD COVER BLACK |
| 1781030000 | Weidmuller | 4.87 $ | 1000 | JUMPER FOR WF 12 2POS |
| 1-178136-2 | TE Connectiv... | 1.27 $ | 432 | CONN HEADR 3POS STR KEY-X... |
| 1-178136-3 | TE Connectiv... | 1.64 $ | 227 | CONN HEADR 3POS STR KEY-X... |
TERM BLOCK PLUG 20POS STR 5.08MM20 Posit...
TERM BLOCK PLUG 20POS STR 5.08MM20 Posit...
TERM BLOCK PLUG 20POS STR 5.08MM20 Posit...
TERM BLOCK PLUG 19POS STR 5.08MM19 Posit...
TERM BLOCK PLUG 19POS STR 5.08MM19 Posit...
TERM BLOCK PLUG 19POS STR 5.08MM19 Posit...
1781900 Datasheet/PDF