133104-3

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The ARINC (Aeronautical Radio Incorporated) 133104-3, also known as the ARINC Interconnect, is a multiconductor power and signal connector commonly found in the aerospace industry. This connector system offers twenty-two contacts rated at 0.75A when connected at 28VDC, 6A at 12VDC, or 10A at 24VDC. With an operating temperature range of -54°C to 85°C, the connectors are extremely reliable even in extreme environmental conditions. The ARINC 133104-3 is widely used in avionics system interconnections such as flight control systems, the interface between computers and communication systems, and power connections for the various onboard systems. It is found in applications such as - but not limited to - turboprop, turbofan, and piston-engine aircraft of all sizes, as well as in military helicopters.

The ARINC Interconnect system consists of three components, each of which can be purchased individually or together: A coupling housing, a coupling ring, and the mating ARINC 133104-3 connector. The coupling housing is a rectangular shape, measuring 9.4mm x 8.3mm, and is used to receive and hold the mating ARINC 133104-3 connector. The coupling ring is a circular shaped ring which is used to connect the coupling housing to the mating connector. This provides the electrical connection between the two connectors. The ARINC 133104-3 connector is a high reliability connector system containing fifteen contacts, rated for 0.75 Amperes, military specification Mil-C-81621.

The ARINC 133104-3 connector utilizes an elastomeric contact circuit board for making electrical contact. This board contains twenty-two individual contacts which are spaced at 0.5mm pitch. The contacts are gold-plated and are rated for 0.75A when connected at 28VDC, 6A at 12VDC, or 10A at 24VDC. The contacts are arranged in two separate strips of eleven each. Each strip functions separately and can be connected to the mating connector independently.

The contact arrangement on the ARINC 133104-3 connector is keyed such that any contact in the signal strip can only mate with its corresponding contact in the control strip. This prevents cross-talking between the control and signal lines and reduces the risk of interference between the two. Each contact is labeled to indicate its respective position on the connector. These labels are used to ensure proper mating of the connectors.

The ARINC Interconnect system is designed to provide power and signal connections in the harshest of environments. This makes it the connector of choice for a wide range of avionics applications. Its rugged construction and superior performance make it one of the most reliable power and signal connectors available.

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