The PS2381-1-V-F3, manufactured by Renesas Electronics America, is a high-performance photocoupler designed for various industrial and electronic applications. This device integrates an infrared emitting diode (IRED) optically coupled to a phototransistor, providing electrical isolation between the input and output circuits. The Renesas PS2381 series are known for their reliability, high isolation voltage, and excellent current transfer ratio, making them suitable for demanding environments.

Applications

• Programmable Logic Controllers (PLCs): Used for isolating input and output modules, protecting the control system from voltage spikes and noise.
• Inverter Circuits: Provides isolation in inverter control stages, enhancing safety and performance.
• AC Servo Drives: Protects the servo drive controller from motor-induced noise and high voltage transients.
• Switching Power Supplies: Used in feedback circuits for isolation and control.
• Industrial Automation Equipment: Integrates into various automated systems to ensure safe and reliable signal transmission.

Features

• High Isolation Voltage: Offers a high level of electrical isolation, crucial for safety in high-voltage applications.
• Compact Package: Designed in a compact package for space-saving integration into circuit boards.
• High Current Transfer Ratio (CTR): Ensures efficient signal transfer from input to output.
• Low Input Current: Requires minimal input current for activation, making it compatible with various control circuits.
• Operating Temperature Range: Suitable for use in a wide range of operating temperatures, ensuring reliability in diverse environments.
• Pb-Free Construction: Compliant with RoHS standards, ensuring environmental friendliness.

Benefits

• Enhanced Safety: Provides a robust barrier against high voltage transients, protecting sensitive control circuitry and personnel.
• Improved Reliability: Offers stable performance over a wide range of operating conditions, reducing the risk of system failures.
• Noise Immunity: Reduces the effects of electrical noise, ensuring accurate and reliable signal transmission.
• Simplified Circuit Design: Simplifies the design of isolated control and feedback circuits.
• Compact Integration: Its small footprint allows for easy integration into densely populated circuit boards.
• Reduced Power Consumption: Low input current requirements contribute to overall energy efficiency.

Additional Details

The PS2381-1-V-F3 typically features a minimum isolation voltage of 5 kVrms. The current transfer ratio (CTR) can vary, but is generally specified at a particular input current and collector-emitter voltage. The forward voltage drop of the input diode is typically around 1.2V, while the collector-emitter breakdown voltage is a key parameter for the output transistor. Detailed specifications can be found in the Renesas datasheet, including parameters such as response time, saturation voltage, and leakage current. It is crucial to consult the datasheet for specific application requirements and derating curves.

This photocoupler is commonly available in a through-hole package. The “F3” suffix likely indicates specific packaging or testing characteristics. Renesas offers comprehensive support documentation to aid in the integration of this device into various applications. The PS2381-1-V-F3 is a reliable and efficient solution for isolating control signals in a multitude of industrial and electronic systems.