4N35S1(TA)-V

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Optoisolators are electronic components designed to electrically isolate two separate circuits. The 4N35S1(TA)-V is a particular type of optoisolator which is part of the transistor, photovoltaic output family of products. It is an integrated 6-pin DIP that contains an infrared LED which, when powered, interacts with a silicon photo-transistor, forming a channel of optical communications between two distinct circuits.

Specs

The 4N35S1(TA)-V design is a 6-pin DIP, with pins 1 through 4 representing infrared LED A and pins 5 and 6 the silicon photo-transistor B. When the LED is powered with a signal from the drive circuit, it emits an infrared light which is coupled to the photo-transistor, completing a circuit and allowing electricity to flow to the output side. It has an emitter power dissipation of 125mW, a collector-emitter voltage of 30V, and an operating temperature range from -40°C to +85°C.

Applications

The 4N35S1(TA)-V’s main strength is its ability to isolate two circuits, allowing them to communicate without any electrical connection between the two. This makes it an ideal choice for a range of applications, including motor control, analog/signal switching, and electrical instrumentation. Its robust design also makes it perfect for use in industrial settings, as well as in consumer electronics and other applications.

Working Principle

The 4N35S1(TA)-V works by using its infrared LED A source and photo-transistor B detector to create an optical communications link between the two circuits. When the drive circuit sends a signal, the LED emits an infrared light which is coupled to a detector on the opposite side of the unit. This creates a path for a small amount of electric current to flow, thus allowing information to be transferred without an electrical connection.

Conclusion

The 4N35S1(TA)-V is an ideal optoisolator for use in a variety of applications. Its precise design and robust construction make it a reliable choice for isolating two circuits, allowing for electrical communication without any physical connection.

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