PS2501A-1-A

Overview

The PS2501A-1-A is a single-channel transistor output optocoupler manufactured by CEL. It features an NPN phototransistor output and operates with a DC input type. The device provides high isolation voltage of 5000Vrms. Key electrical parameters include a maximum collector-emitter voltage of 80V, a maximum collector current of 50mA, and a forward voltage of 1.4V. The unit is housed in a 4-DIP package with a pitch of 7.62mm.

Feature Summary

• High isolation voltage capability for safe signal transmission between isolated circuits
• Single channel design integrating a GaAs LED and NPN silicon phototransistor
• Surface mount or through-hole compatible packaging options within the series

Applications

• Industrial control systems requiring galvanic isolation
• Signal transmission across isolated power supplies
• Microcontroller interface circuits for noise immunity

Procurement Notes

Verify the specific suffix against official datasheets to confirm package type and lead configuration. Ensure the component matches the required isolation voltage and current transfer ratio specifications for the target application. Confirm availability status as distribution channels may vary.

Selection Notes

Select this component when a single-channel transistor output isolator is required. Consider the 5000Vrms isolation rating for safety compliance. Verify that the 80V collector-emitter voltage and 50mA collector current meet the load requirements of the receiving circuit.

Part Context

This part belongs to the PS2501 series of high isolation voltage multi photocouplers. The series includes variants such as PS2501-1 and PS2501AL-1, offering different package styles like plastic DIP and gull-wing surface mount configurations while maintaining similar core electrical characteristics.

Replacement Considerations

Cross-reference with PS2501-1-A for standard DIP versions. Check PS2501AL-1 for surface mount equivalents. Verify pinout compatibility and electrical ratings before substitution.