PS2506-4-A

Overview

The PS2506-4-A is a four-channel transistor output optocoupler manufactured by CEL. It features a GaAs light emitting diode coupled with NPN silicon darlington transistors, providing high isolation voltage of 5000 Vrms. The device operates within a temperature range of -55°C to 100°C and utilizes a 16-DIP package. Key electrical specifications include a maximum collector-emitter voltage of 40 V, a forward current of 80 mA, and a forward voltage of 1.4 V.

Feature Summary

• Contains four independent channels for multi-signal isolation
• Utilizes NPN silicon darlington transistor outputs for high gain
• Provides high isolation voltage capability between input and output circuits

Applications

• Industrial control systems requiring signal isolation
• Power supply feedback loops
• Microprocessor interface circuits

Procurement Notes

Verify the suffix -A confirms lead-free compliance as per manufacturer documentation. Ensure the 16-DIP package dimensions match the target PCB layout. Confirm the operating temperature range meets system requirements. Check that the isolation voltage rating satisfies safety standards for the intended application environment.

Selection Notes

Select this component when multiple isolated channels are required in a single package. The darlington output configuration offers higher current transfer ratios compared to standard phototransistor types. Consider the 16-DIP form factor for through-hole mounting applications where space allows. Verify compatibility with input drive currents against the specified 80 mA maximum forward current limit.

Part Context

This part belongs to the PS2506 family of optocouplers from CEL. Variants such as PS2506-1 and PS2506-2 offer one or two channels respectively. The PS2506L series provides similar functionality with potentially different packaging or performance characteristics. The -A suffix specifically denotes lead-free construction compliant with environmental regulations.

Replacement Considerations

Direct substitutes may include other four-channel darlington optocouplers with comparable isolation voltages. Verify pinout compatibility before substitution. Check if alternative parts meet the same thermal and electrical specifications. Consult manufacturer cross-reference lists for confirmed equivalents.