FOD2743B

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The FOD2743B is a high-performance photocoupler designed specifically for use in isolation and protection circuits for signal transmission, control, and solenoid activation. The FOD2743B is ideal for use in applications such as industrial control, instrumentation, process control, audio amplifiers, pulsed current supplies, and LED lighting. This device is housed in a 4-pin through hole package that can be mounted on standard through-hole boards for easy installation. The FOD2743B is available in two variants; the standard version and the low-cost version. Both versions feature a standard photocoupler with fast switching speeds, low power consumption, and excellent isolation.

The FOD2743B is a transistor-type optoisolator. It utilizes an LED diode as its transmitting element, and a phototransistor as its receiving element. The LED is triggered by an external signal source such as a digital logic circuit. When the LED is illuminated, it emits light which is then detected by the phototransistor. The phototransistor then amplifies this light into an electrical signal. This electrical signal is then used to control a load, such as a solenoid or motor.

The FOD2743B has a fast switch time of 10 μs in both the normal mode and low-cost mode. This allows for a fast response rate when controlling an application. The standard version has a switching current of 0.5 to 12 mA, while the low-cost version has a switching current of 0.25 to 5 mA. Both versions offer excellent isolation voltage, with the standard version having an isolation voltage of 5.5 kV and the low-cost version having an isolation voltage of 1.5 kV. This ensures that the signal transmission is not affected by any interference from other devices or circuits. The FOD2743B has a wide operating temperature range of -40°C to +85°C.

The FOD2743B is an ideal solution for applications requiring isolation and protection. It is a reliable device with a long operating life, and is easy to install on standard circuit boards. In addition, it offers excellent switching speed, isolation voltage, and current capabilities, making it suitable for a wide range of applications. Its cost-effective design makes it a great choice for budget-conscious applications.

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