PS2501-1-K-A

Overview

The PS2501-1-K-A is a single-channel transistor output optoisolator manufactured by CEL. It features a plastic DIP-4 package with high isolation voltage of 5000Vrms. The device operates within a temperature range of -55°C to 100°C. Key electrical parameters include a maximum collector-emitter saturation voltage of 300mV and a typical rise/fall time of 50ns. The current transfer ratio ranges from 300% to 600% at an input current of 5mA.

Feature Summary

• High isolation voltage capability for safe signal transmission between circuits
• Wide operating temperature range suitable for industrial environments
• Fast switching speed with low propagation delay times
• Compact through-hole packaging for standard PCB integration

Applications

• Industrial control systems requiring galvanic isolation
• Power supply feedback loops
• Microcontroller interface circuits

Procurement Notes

Verify the specific suffix K-A against official datasheets to confirm pinout and electrical characteristics match your design requirements. Ensure compatibility with existing PCB footprints and thermal management strategies before finalizing procurement decisions.

Selection Notes

Select this component when high isolation voltage and fast switching are required in a single-channel configuration. Consider the DIP-4 package constraints and verify that the current transfer ratio meets the drive requirements of the downstream circuitry under all operating conditions.

Part Context

This part belongs to the PS2501 series of NEC/CEL photocouplers, designed for general-purpose isolation applications. The series includes variants with different channel counts and packages, offering flexibility for various electronic designs requiring reliable signal transmission across isolated boundaries.

Replacement Considerations

Cross-reference with PS2501-1 or PS2501L-1 for similar performance. Verify pinout compatibility and electrical specifications before substitution to ensure circuit functionality remains intact.