6N139S(TA)-V

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Optoisolators are solid-state electronic devices designed to transfer electrical signals between two isolated circuits. The 6N139S (TA)-V is an opto-isolator device that combines a light source, typically an infrared (IR) LED, with a detector, usually a photovoltaic (PV) cell. When the LED is energized, the PV cell produces a signal. By connecting the LED to one circuit, and the PV cell to a separate circuit, electrical isolation between the two circuits is achieved.

The 6N139S (TA)-V opto-isolator has a nominal voltage rating of 5 V. It is available in several forms including transistor output, open collector output, open emitter output, voltage output, or current regulator output. As its name implies, the TA-V version has a voltage output. A voltage output is a high impedance and able to drive signal or logic circuits.

The common 6N139S (TA)-V optoisolator package consists of two active elements. One is an infrared (IR) LED and the other is a PV cell. When the LED is energized, the PV cell produces a voltage which is proportional to the current passing through the LED. This voltage, which is a replica of the input signal, is known as an "optically-coupled" signal and can be used to switch digital or logic signals.The 6N139S (TA)-V optoisolator is a low-voltage device specifically designed for applications requiring a small package size and high electrical isolation. The TA-V is used in a variety of applications. For example, it can be used to switch power supplies on and off in industrial control systems or to sense current in automotive systems. It can also be used in systems that require isolated sensing of level or temperature, pulse or frequency sensing, and motor drive control.

At the heart of the 6N139S (TA)-V opto-isolator is its working principle. The opto-isolator makes use of the detector\'s photovoltaic effect. The photovoltaic effect is the process by which light energy is converted to electrical energy. When the LED is energized, the photovoltaic effect causes electrons to be extracted from the PV cell and creates a voltage difference between the cathode and anode of the device. This voltage difference is proportional to the current passing through the LED. The output voltage of the opto-isolator is then equal to the difference between the cathode and anode.

The 6N139S (TA)-V opto-isolator is a versatile electronic device that provides electrical isolation between two circuits. It is ideal for use in systems that require isolated sensing of level or temperature, pulse or frequency sensing, and motor drive control. The TA-V version is designed for applications that require a voltage output and a small package size. The 6N139S is easy to use and offers high electrical isolation.

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