PS2502-4-A

Overview

The PS2502-4-A is a four-channel transistor output optocoupler manufactured by Renesas Electronics. It features NPN photodarlington outputs with a minimum current transfer ratio of 200% at 1 mA forward current. The device supports a maximum DC forward current of 80 mA and has a typical forward voltage of 1.17 V. It provides high isolation capability with an insulation voltage of 5000 Vrms. The collector-emitter saturation voltage is maximized at 1 V, while the maximum collector-emitter voltage is rated at 40 V. The component operates within a temperature range of -55°C to +100°C and utilizes a 16-DIP package.

Feature Summary

• Four independent channels for multi-circuit isolation
• High isolation voltage rating for safety applications
• NPN photodarlington output configuration
• Wide operating temperature range

Applications

• Industrial control systems requiring signal isolation
• Power supply feedback loops
• Microprocessor input/output isolation
• Motor drive control circuits

Procurement Notes

Verify the specific suffix and revision level against the official datasheet before procurement. Confirm that the 16-DIP package dimensions match the target PCB footprint. Check RoHS compliance status as per the latest manufacturer documentation. Ensure the NRND status does not conflict with long-term production requirements. Validate thermal management capabilities for the intended operating environment.

Selection Notes

Select this component when four isolated channels are required in a single package. The photodarlington output offers high gain suitable for direct logic interface. Consider the 100 µs switching speed limitations compared to faster logic outputs. Evaluate the 5000 Vrms isolation barrier for safety compliance needs. Compare power dissipation limits against the expected load currents.

Part Context

This part belongs to the PS2502L series of high-isolation optocouplers from Renesas Electronics. It is designed for general-purpose isolation tasks where multiple channels are necessary. The series typically includes variants with different channel counts and pin configurations. The PS2502-4-A specifically addresses applications needing quad-channel isolation in a standard DIP format.

Replacement Considerations

Public confirmed substitute part numbers: PS2502L-4-A.