PS2532-4

Overview

The PS2532-4 is a multi-channel optically coupled isolator manufactured by CEL. It integrates a Gallium Arsenide (GaAs) light-emitting diode with an NPN silicon Darlington-connected transistor array. The device provides four independent channels within a single package, designed for high isolation voltage applications. Key electrical specifications include a maximum collector current of 150 mA and a reverse voltage rating of 6 V. The unit offers 5000Vrms isolation capability between input and output circuits.

Feature Summary

• Integrates GaAs LED with NPN silicon Darlington transistors
• Provides four isolated signal channels in one package
• Supports high collector-to-emitter voltage operation
• Ensures robust galvanic isolation via optical coupling

Applications

• Industrial control systems requiring multi-channel isolation
• Data communication interfaces needing signal separation
• Power supply feedback loops for safety compliance
• Microcontroller I/O expansion with electrical isolation

Procurement Notes

Verify the specific suffix variant against official datasheets to confirm pinout and packaging compatibility. Ensure the selected component matches the required isolation voltage and channel count for your circuit design. Cross-reference manufacturer part numbers to avoid counterfeit or obsolete stock issues during procurement.

Selection Notes

Select this component when multiple isolated channels are required in a compact form factor. Consider the Darlington configuration's higher current gain versus switching speed limitations. Verify that the 5000Vrms isolation rating meets the safety standards of the target application environment.

Part Context

This part belongs to the PS2532 series of multi-photocouplers from California Eastern Laboratories. The series includes variants with one, two, and four channels. These devices are engineered for applications demanding high reliability and electrical safety through optical isolation technology.

Replacement Considerations

Check for direct equivalents such as the PS2532L-4 variant which shares similar architectural features. Verify pin compatibility and isolation ratings before substituting with other manufacturers' Darlington output optoisolators.