4N35SR2VM Isolators

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Optoisolators - Transistor, photovoltaic output, such as the 4N35SR2VM device, are used for electrical isolation between two circuits. The device consists of an LED coupled with a phototransistor. The LED emits light when a voltage is applied to it. The phototransistor, when illuminated by the LED’s light, transmits a current through it according to the amount of light it receives. The 4N35SR2VM device is specifically designed to provide isolation between high voltage and logic level circuits.

The 4N35SR2VM optoisolator uses a standard three-terminal package for the LED and a standard two-terminal package for the phototransistor. The LED is internally connected to the collector of the phototransistor so that the voltage across the collector and emitter is equal to the LED forward voltage. The optoisolator has a typical forward voltage of 3.2V and a maximum reverse voltage of 5.0V. Its maximum isolation voltage is 5,000 volts, and the typical operating temperature range is -40 to 85°C.

The operating principle of the 4N35SR2VM optoisolator is very simple. When a voltage is applied to the device, the LED emits light, which is then received by the phototransistor, whose collector and emitter are connected internally. The electrical signal applied to the LED is thus transmitted to the phototransistor, allowing its collector current to be proportional to the magnitude of the LED’s light output. The collector terminal can therefore be used to send control signals to other devices or circuits.

Optoisolators, such as the 4N35SR2VM device, find a variety of applications. They are used in relays, switches, logic circuits, and any other electronic device that requires electrical isolation between two circuits. They can also be used to prevent noise and electrical interference from damaging sensitive components on a board. In addition, optoisolators are used to sense mechanical switch positions and measure the temperature of a device.

The 4N35SR2VM optoisolator is a popular choice for many applications due to its low cost, small size, and high isolation voltage. It offers a reliable and cost-effective way to isolate digital/analog signals when necessary. Its low forward voltage makes it perfect for use in low-power circuits, such as battery powered devices. When used in circuit designs, the 4N35SR2VM optoisolator provides reliable electrical isolation, protection, and transmission of signals.

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