PS2506-2-A

Overview

The CEL PS2506-2-A is a dual-channel transistor output optocoupler featuring high isolation voltage. It utilizes an NPN photodarlington output configuration to provide significant current transfer ratios. The device supports a maximum collector-emitter voltage of 40 V and a peak collector current of 160 mA per channel. It operates within a temperature range of -55°C to +100°C and is housed in an 8-pin DIP package.

Feature Summary

• Dual-channel architecture for independent signal isolation
• High insulation voltage capability for safety-critical applications
• NPN photodarlington output stage for high gain

Applications

• Industrial control systems requiring galvanic isolation
• Solid-state relay driver circuits
• Microcontroller interface isolation

Procurement Notes

Verify component authenticity through authorized channels due to obsolete lifecycle status. Confirm datasheet revisions match design requirements. Check for RoHS compliance variations across manufacturing batches. Validate pinout compatibility with existing PCB footprints before integration.

Selection Notes

Evaluate thermal management needs as power dissipation limits apply. Ensure input current stays within specified forward current ratings. Consider the slow switching speed inherent to Darlington outputs for timing-sensitive designs. Verify isolation voltage withstands system transient spikes.

Part Context

This component belongs to the NEC/CEL PS2506 family of optocouplers. It shares architectural similarities with single-channel variants like the PS2506-1 but provides two isolated paths. The family is known for robust isolation performance in industrial environments.

Replacement Considerations

PS2506-2 is a direct functional equivalent from CEL. PS2506-2-A from other manufacturers may offer compatible specifications. Verify pinout and electrical parameters against original datasheets before substitution.