PS2502-4-A

The PS2502-4-A is a high-performance optocoupler manufactured by California Eastern Laboratories (CEL). This device is designed to provide electrical isolation between its input and output, making it ideal for applications where signal integrity and safety are paramount.

Key Features:

1. Isolation Voltage: The PS2502-4-A offers a high isolation voltage, typically around 5000 Vrms, ensuring that the input and output circuits are electrically isolated from each other. This feature is crucial for protecting sensitive components from voltage spikes and noise.

2. Input Configuration: The optocoupler consists of an infrared LED as the input component. When a current flows through the LED, it emits infrared light, which is detected by the phototransistor on the output side.

3. Output Configuration: The output of the PS2502-4-A is a phototransistor that can switch on and off in response to the input signal. This allows for the transmission of digital signals across the isolation barrier.

4. Transfer Characteristics: The device typically exhibits a high current transfer ratio (CTR), which indicates the efficiency of the optocoupler in transferring input current to output current. This is essential for ensuring that the output can drive subsequent stages in a circuit effectively.

5. Temperature Range: The PS2502-4-A is designed to operate over a wide temperature range, making it suitable for various environmental conditions. This reliability is important for industrial applications.

6. Package Type: The device is usually available in a compact DIP (Dual In-line Package) form factor, which facilitates easy integration into circuit boards and helps save space in electronic designs.

7. Applications: Common applications for the PS2502-4-A include signal isolation in data communication, power supply feedback, and interfacing between different voltage levels in electronic systems. It is widely used in industrial automation, telecommunications, and consumer electronics.

Electrical Specifications:

• Input Forward Current (IF): The typical forward current for the LED is around 10 mA, which is sufficient to activate the phototransistor.
• Output Collector-Emitter Voltage (VCE): The maximum collector-emitter voltage is typically around 30 V, allowing it to handle a variety of output conditions.
• Rise and Fall Times: The device is designed for fast switching, with rise and fall times in the microsecond range, making it suitable for high-speed applications.

Conclusion:

The PS2502-4-A from California Eastern Laboratories is a versatile and reliable optocoupler that provides essential isolation and signal transmission capabilities for a wide range of electronic applications. Its robust design, high isolation voltage, and efficient performance make it a preferred choice for engineers looking to enhance the safety and reliability of their circuits.