PS2501-1-A

Overview

The PS2501-1-A is a single-channel optoisolator featuring an NPN silicon phototransistor output and a GaAs infrared LED input. It provides high isolation voltage of 5000Vrms with a collector-emitter voltage of 80V and output current per channel of 50mA. The device operates within a temperature range of -55°C to +100°C, dissipating up to 150mW. Typical switching times include a rise time of 3μs and fall time of 5μs.

Feature Summary

• High isolation voltage capability for safe signal transmission between isolated circuits
• Single-channel configuration integrating GaAs LED and NPN phototransistor
• Wide operating temperature range suitable for industrial environments

Applications

• Industrial control systems requiring galvanic isolation
• Power supply feedback loops
• Signal transmission in noisy electrical environments

Procurement Notes

Verify the specific suffix 'A' against manufacturer documentation to confirm pinout and packaging details. Ensure compatibility with required isolation voltage ratings and thermal management constraints before integration into final designs.

Selection Notes

Select this component when single-channel transistor output isolation is required. Consider the 5000Vrms rating for safety compliance. Verify that the 50mA output current meets load requirements and that the 150mW power dissipation fits the thermal design.

Part Context

This part belongs to the PS2501 series of high isolation voltage photocouplers. The series includes variants like PS2501-4 for quad-channel applications. Manufactured by CEL (formerly NEC), these devices are standard solutions for basic digital isolation tasks.

Replacement Considerations

Check datasheets for equivalent parts from other manufacturers offering similar 5000Vrms isolation and DIP-4 packages. Confirm pin compatibility and electrical parameters match before substitution.