The PS2502 is a high-isolation optocoupler manufactured by CEL (California Eastern Laboratories, now Renesas Electronics America). It's designed to provide electrical isolation between circuits, safeguarding sensitive components from high voltages and electrical noise. This optocoupler features a gallium arsenide (GaAs) light-emitting diode (LED) on the input side and a silicon phototransistor on the output side.

Applications

• Programmable Logic Controllers (PLCs): Used for isolating input and output signals, improving system reliability and protecting against damage from voltage surges.
• Inverter Circuits: Offers isolation between the control circuitry and the high-voltage power stage.
• Microprocessor Input/Output Interfaces: Protects microprocessors from voltage transients and ground loops.
• Power Supplies: Isolates the primary and secondary sides of the power supply, enhancing safety and preventing noise transmission.
• Industrial Control Equipment: Employed in various industrial applications to isolate control signals and protect sensitive electronics from harsh electrical environments.

Features

• High Isolation Voltage: Provides a high degree of electrical isolation between the input and output, typically around 5000 Vrms.
• Current Transfer Ratio (CTR): Delivers a good CTR, enabling efficient signal transfer.
• Low Input Current: Requires a minimal input current to activate the LED, making it compatible with diverse logic circuits.
• Compact Package: Available in a small package for space-saving designs.
• RoHS Compliant: Manufactured to meet environmental standards, reducing hazardous substances.

Benefits

• Enhanced Safety: Isolates high-voltage circuits, protecting users and equipment.
• Noise Immunity: Prevents noise from propagating between circuits, improving signal integrity.
• Ground Loop Isolation: Eliminates ground loops, reducing noise and improving system performance.
• Protection from Voltage Transients: Shields sensitive electronics from voltage spikes and surges.
• Improved System Reliability: Prevents damage to components, extending the lifespan of the equipment.

Technical Specifications (Typical):

• Isolation Voltage: 5000 Vrms
• Forward Current (IF): 50 mA
• Collector-Emitter Voltage (VCEO): 80 V
• Operating Temperature: -55°C to +100°C