FOD817B3SD

The FOD817B3SD is an optoisolator (or optocoupler) that provides electrical isolation between its input and output while allowing signal transmission. It features an infrared LED and a phototransistor in a single package. The device is designed to ensure high-speed switching and low input-to-output capacitance, making it suitable for a variety of applications, including signal isolation in digital circuits and interfacing between different voltage domains.
Key specifications of the FOD817B3SD include a maximum isolation voltage of 5,000V, a forward current of up to 20mA for the LED, and a collector current capability of 50mA for the phototransistor. It operates over a wide temperature range, typically from -40°C to +100°C, making it versatile for industrial applications.
The FOD817B3SD is commonly used in power supply circuits, communication systems, and data acquisition modules where maintaining electrical isolation is essential for safety and signal integrity.

The FOD817B3SD is an optocoupler that features a phototransistor output and a gallium arsenide infrared LED input. Key features include:
1. Isolation Voltage: It offers high isolation voltage rating, typically around 5000 VDC.
2. High Speed: Fast switching capabilities, with a typical rise time of 15 µs and fall time of 6 µs, enabling efficient data transmission.
3. Wide Operating Temperature Range: Operates effectively within a temperature range of -40°C to +100°C.
4. Low Input Current: A low forward current requirement allows for efficient operation, typically around 10 mA.
5. Compact Package: Available in a DIP-4 package, facilitating easy integration into various circuit designs.
6. High Gain: With a current transfer ratio (CTR) of 100% to 600% at 10 mA, it ensures effective signal transmission.
7. Versatility: Suitable for various applications including signal isolation, switching power supplies, and microcontroller interfacing.
Overall, the FOD817B3SD is known for its reliability and efficiency in providing electrical isolation in diverse electronic applications.

The FOD817B3SD is typically packaged in a 4-pin DIP (Dual In-line Package) configuration.

The FOD817B3SD is an optoisolator featuring a total of 6 pins. Its primary function is to provide electrical isolation between its input and output while allowing signal transmission. The pin configuration is as follows:
1. Anode (A) - Input pin for the LED.
2. Cathode (K) - Input pin for the LED, connected to ground.
3. Emitter (E) - Output pin where the phototransistor's emitter is connected.
4. Collector (C) - Output pin where the phototransistor's collector is connected.
5. NC (Not Connected) - This pin is not connected internally and is typically left unused.
6. NC (Not Connected) - Another unused pin.
The FOD817B3SD is designed for applications requiring isolation, such as signal interfacing in communication systems, and provides a high degree of reliability and performance in various environments.

The FOD817B3SD is manufactured by Fairchild Semiconductor, which is now part of ON Semiconductor. Fairchild Semiconductor was a leading global supplier of high-performance semiconductor solutions. The company specialized in a wide range of products including analog and mixed-signal devices, power management technologies, and optoelectronics. They catered to various industries such as automotive, consumer electronics, industrial, and telecommunications. After being acquired by ON Semiconductor in 2016, Fairchild's legacy continues under ON Semiconductor, which focuses on providing efficient and innovative semiconductor solutions for a diverse array of applications.

The FOD817B3SD is an optocoupler used in various applications, including electrical isolation in switching power supplies, data communication interfaces, and microcontroller-to-peripheral connections. It provides signal isolation between high-voltage and low-voltage circuits, ensuring protection against voltage spikes. Additional uses include industrial automation, consumer electronics, and medical devices, where reliable isolation is critical for safety and performance.

The FOD817B3SD is a photocoupler (optocoupler) with a built-in transistor output. Equivalent products include the MOC3063, TLP181, and EL817. These alternatives may vary in specifications such as voltage ratings and current transfer ratio, so it's essential to check the datasheets for compatibility with your specific application.