4N35S1(TA)

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Optoisolators - Transistor, Photovoltaic Output

The 4N35S1(TA) optoisolator is a transistor photovoltaic output optoisolator typically found in applications where electrical isolation is needed, such as in industrial and military processes. It provides high-speed switching by using electricity to trigger a light-emitting diode (LED), which in turn activates a transistor. The 4N35S1(TA) provides excellent linearity and fast turn-on response, making it ideal for use in low-level switching environments.

Application Field

The 4N35S1(TA) optoisolator is designed for low-grade industrial and military applications, such as those involving DC control signal protection and isolation, signal and power transmission, and transducer protection. It is suitable for controlling a variety of devices, including motors, solenoids, relays, AC voltage regulators, and power lines. It is also used in high-power electrical applications, such as power supply and motor control systems.

Working Principle

The 4N35S1(TA) optoisolator is a transistor photovoltaic output device. Its design is based on the principle of collection of photons, which allows incoming signals from its LED to be converted into electric current signals. This current signal is then made available at the output terminals of the optoisolator. The optoisolator’s phototransistor is used to activate a separate switching device, which is used to switch the device’s output. The switch is triggered by applying a voltage or current to its input, which in turn initiates the switching of the output device.

The 4N35S1(TA) optoisolator has a reverse input voltage protection that prevents damage to the transistors by providing a controlled leakage path when an input voltage is greater than the maximum reverse breakdown voltage of the device. It is capable of delivering a high-speed response, with a rise and fall time of 5ns.

The 4N35S1(TA) optoisolator is a triple-input device that can be configured in two forms; either a single input or a dual input that can be preset for either high or low logic levels. It features a light-activated collector output and can function as either a switch or an amplifier depending on its output configuration.

The 4N35S1(TA) optoisolator can be used for a wide range of voltage and power supply conditions. It can be powered by either a DC voltage or AC voltage, and can handle a range of input voltages from 6V to 24V. The device has a low thermal operating drift and provides low current drain, which makes it suitable for use in energy-efficient applications.

The 4N35S1(TA) optoisolator can provide excellent electrical isolation, ensuring that unwanted signals do not interfere with the desired signal. The device is also resistant to noise and static electricity, eliminating the possibility of damaged components.

In summary, the 4N35S1(TA) optoisolator is a versatile and reliable transistor photovoltaic output optoisolator that is designed for use in low-level switching environments. The device is capable of providing high-speed switching and excellent linearity, making it ideal for use in industrial and military processes where electrical isolation is required. Its low thermal operating drift and low current drain also make it suitable for energy-efficient applications.

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