EL3H7(F)-VG Datasheet/PDFOptoisolators - Transistor, Photovoltaic Output
Optocouplers, which are also known as optoisolators, are devices that use optical components (optical source) and electrical components such as semiconductors to provide isolation between two circuits. The device isolates the input from the output by blocking direct electrical conduction between the two circuits. The optocoupler EL3H7(F)-VG is a transistor photovoltaic output optocoupler, which can provide electrical insulation at the outputs. It is used for applications such as switching electronics, data communication, process control, and controlling electrical loads.
Application Field of EL3H7(F)-VG
The EL3H7(F)-VG optocoupler is mainly used in applications where isolation between devices is required. It is widely used in the switching of electrical circuits where it can be used to switch load current or voltage. This device can also be used to switch signals or control multiple circuits. Other applications where this optocoupler is used include thermostats, alarms, safety systems, and optical fiber transceivers.
Working Principle of EL3H7(F)-VG
The EL3H7(F)-VG optocoupler is composed of two main components, an optical source and a photovoltaic cell. The optical source is a gallium arsenide (GaAs) infrared LED and the photovoltaic cell is an NPN silicon transistor. The LED emits infrared light when a current is passed through it. This light is detected by the photovoltaic cell which produces an electrical signal. This signal is then conducted to the output circuit to be used for switching or controlling electrical loads. The isolation between the input and output circuit is ensured as the LED emits light and the photovoltaic cell receives it, blocking direct electrical conduction between them.
Advantages of Using EL3H7(F)-VG
The EL3H7(F)-VG optocoupler can provide up to 2500Vrms for a short duration of time for isolation between input and output circuits. It also has a peak current rating of 5A. The optocoupler is also resistant to voltage transients and surges and can provide very good response times (up to 1 μs). The device also has the benefit of being highly reliable and has a long life expectancy.
Conclusion
The EL3H7(F)-VG optocoupler is a transistor photovoltaic output optocoupler used for applications such as switching electronics, data communication, process control, and controlling electrical loads. It has the advantage of providing up to 2500Vrms, a peak current rating of 5A, and a fast response time. The device is extremely reliable and is resistant to voltage transients and surges. It is an ideal choice for applications where isolation between devices is required.