OPI120TXV

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Optoisolators, notably those of the Transistor, Photovoltaic Output type, enable the transmission of electrical signals across two isolated circuits, providing protection against static surges and noise, as well as enabling the transmission of low-level or high-level signals without the risk of signal crossing. The OPI120TXV is a common Optoisolator device specifically designed for digital output applications.

The OPI120TXV device consists of two main parts: an LED and a phototransistor. The LED is infrared, which means it produces invisible light when it is electrically activated. When the LED is on, it emits light which then falls on the collector of the phototransistor. This causes the transistors collector voltage to change, producing a digital output signal. As the LED and phototransistor are electrically isolated, this allows high-voltage signals (up to 40V) to be transmitted across otherwise electrically isolated circuits.

The OPI120TXV is primarily designed for digital output applications, such as in industrial automation, telecommunications and medical equipment. Due to its isolated properties, it is often used in environments with high levels of electrical interference, such as power plants, computer networks and radio systems. It can also be used to protect sensitive electronic devices from damage caused by surges and arcs that may occur during the operation of the circuit.

The OPI120TXV has two modes of operation: active and standby. In active mode, the LED is on, producing light which then falls on the phototransistor’s collector. In standby mode, the LED is off and thus no light is produced. Standby mode is generally used to minimize power consumption and signal loss in applications where the signal is low or there is little electrical interference.

The OPI120TXV offers excellent protection against signal interference and static surges, and is capable of operating in temperatures from -40°C to +100°C, making it ideal for use in harsh industrial environments. Additionally, its low capacitance, ruggedness and fast response time make it ideal for digital output applications. Its low power consumption further ensures the device can be used in low-power applications and embedded systems.

The OPI120TXV is an effective and reliable solution for transferring digital output signals across isolated circuits, offering excellent protection for sensitive electronic components. Its ability to operate at a wide range of temperatures, its low power consumption, fast response time, and low capacitance make it a popular choice for a variety of applications in the industrial, telecommunications, and medical sectors.

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