The KPC817S-C is a single-channel phototransistor optocoupler manufactured by KEC. It consists of an infrared emitting diode optically coupled to a phototransistor. This device is designed for electrical isolation in various applications, providing a safe and reliable barrier between circuits with different voltage levels.

Applications

• Industrial Control Systems
• Signal Transmission between circuits of different potentials
• Microcontroller Input Isolation
• Power Supply Isolation
• Noise Suppression in Digital Circuits

Features

• High Isolation Voltage: Provides high electrical isolation between input and output.
• Compact Package: Space-saving design for high-density applications.
• CTR (Current Transfer Ratio): Offers a specified current transfer ratio. The 'C' variant typically indicates a higher CTR compared to other grades.
• High Collector-Emitter Voltage: Supports high voltage applications.
• RoHS Compliant: Environmentally friendly and complies with RoHS standards.

Benefits

• Electrical Isolation: Provides a safe and reliable barrier between circuits.
• Noise Immunity: Reduces noise and interference in digital circuits.
• Compact Design: Saves space in densely populated circuit boards.
• Ease of Use: Simple design and operation.
• Higher CTR: The 'C' variant provides a higher current transfer ratio, potentially simplifying circuit design and improving performance in certain applications.
• Compliance: RoHS compliant for environmental safety.

Additional Details

The KPC817S-C is typically used to isolate sensitive electronic components from high-voltage or noisy environments. It is commonly found in industrial control systems, where it protects microcontrollers and other digital circuits from damage. The optocoupler is available in a standard DIP-4 package, making it easy to integrate into various circuit designs. The CTR, collector-emitter voltage, and isolation voltage are important parameters to consider when selecting an optocoupler for a specific application. The KPC817S-C offers a higher CTR compared to other grades of the KPC817S series, which can be advantageous in applications where a higher signal transfer efficiency is required. These parameters are detailed in the product datasheet provided by KEC.