The ON Semiconductor FOD817AS is a versatile optocoupler device designed to provide electrical isolation between a low-voltage input signal and a high-voltage output circuit. This robust component is a crucial link in a wide range of applications where signal integrity and isolation are of paramount importance, such as industrial controls, power supply circuits, and digital communications systems.
Key Features
- High Isolation Voltage: The FOD817AS offers an impressive isolation voltage of 5000Vrms, ensuring that the input and output are securely separated to prevent electrical noise and surges from affecting the control side of the circuit.
- Current Transfer Ratio (CTR): With a CTR range from 50% to 600%, this optocoupler ensures reliable signal transmission and is suitable for a variety of digital interfacing applications, including microprocessor inputs.
- Lead-Free and RoHS Compliant: This product adheres to environmental standards, being lead-free and compliant with the Restriction of Hazardous Substances (RoHS) directive, making it a responsible choice for electronic designs.
- UL Recognized: The FOD817AS is UL recognized, which means it meets stringent safety standards and is suitable for use in UL-certified products.
Applications
The FOD817AS is an essential component in applications that require high-voltage insulation to protect sensitive electronic circuits. It is commonly used in:
- Switching power supplies
- Motor control systems
- Line receivers
- Computer peripheral interfaces
- Microprocessor system interfaces
Technical Specifications
Parameter
Value
Isolation Voltage
5000Vrms
Current Transfer Ratio (CTR)
50% - 600%
Input Forward Voltage
1.2V (typical)
Output Collector-Emitter Voltage
70V (maximum)
Operating Temperature
-55°C to +110°C
With its high isolation voltage, wide CTR range, and compliance with international safety standards, the FOD817AS from ON Semiconductor is an ideal choice for designers looking to enhance the reliability and safety of their electronic systems.
