6N139-X009

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Optoisolators are devices that isolate two circuits electrically using a light in one circuit as the signal for the other. The 6N139-X009 is a specific optoisolator which falls into the category of transistor, photovoltaic output. This particular optoisolator is used to isolate public circuit effectively from communication tors, as well as provide electrical isolation and protection for both parties.

Application Field

The 6N139-X009 optoisolator is ideal for use in KVM switches, audio interfaces, and low-cost microprocessor systems. Its use in low-cost microprocessor systems is especially beneficial since the optoisolator allows the circuit to be operated in a noisy and hostile environment. The optoisolator can also be used to isolate inputs on communications line cards and high-speed serial lines or backplanes.

The 6N139-X009 optoisolator is also used in power control and sensing applications. It offers the ability to control one or more external electrical loads with a ground- and power supply-independent Serial Data Interface (SDI). This makes it a great choice for telecasters, fire alarms, HVAC applications, lighting control and access control systems.

Working Principle

The 6N139-X009 optoisolator consists of an LED mounted in a package along with a photovoltaic detector. Light emitted by the LED passes through a layer of solid insulation which electrically isolates the transmit and receive sections. When the LED receives an input signal voltage, the emitted light reaches the photovoltaic detector, causing a low-level current to pass through the electrodes, generating a voltage across the device.

In many optoisolators, the detected voltage level must be amplified into a usable signal level. In the 6N139-X009, however, the detector provides a voltage output directly, eliminating the need for amplification circuitry. This optoisolator is capable of providing an isolation voltage rating of 150 to 300 Volts, making it suitable for use in industrial control systems.

The 6N139-X009 is a highly versatile optoisolator for use in industrial control systems. Its ability to provide electrical isolation between two circuits, its capability to detect and generate voltage levels, and its ability to operate in noisy and hostile environments make it an ideal choice for use in industrial control systems. It is also a great choice for use in communications line cards, high-speed serial lines or backplanes, and power control and sensing applications.

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