PS2705-1-F4-L-A

Overview

The CEL PS2705-1-F4-L-A is a single-channel transistor output optocoupler featuring AC input response capability. It provides high isolation voltage of 3750 Vrms and supports a maximum collector current of 80 mA with a maximum collector-emitter voltage of 40 V. The device exhibits a typical current transfer ratio of 100% at 5 mA forward current, with a minimum CTR of 50%. Switching characteristics include a typical rise time of 3 µs and fall time of 5 µs. It operates within a temperature range of -55°C to +100°C and utilizes a 4-SOP surface mount package.

Feature Summary

• AC input response capability for direct connection to AC signals
• High isolation voltage rating of 3750 Vrms
• High current transfer ratio up to 300%
• Surface mount SOP-4 package design

Applications

• Solid state relays
• Motor control circuits
• Measurement equipment

Procurement Notes

Verify the manufacturer designation carefully, as this part number appears in catalogs from both Renesas Electronics and CEL (California Eastern Labs). Confirm the specific datasheet version and ordering suffix requirements with the supplier to ensure compatibility with your design specifications. Check for active status or obsolescence notices before finalizing procurement plans.

Selection Notes

Select this component when AC input detection is required without additional rectification circuitry. The 80 mA output current capacity suits moderate load driving applications. Ensure the 3750 Vrms isolation meets safety standards for the intended application. Verify that the 40 V collector voltage rating exceeds the maximum expected load voltage.

Part Context

This device belongs to the NEPOC series of high isolation voltage photocouplers. It integrates two GaAs light emitting diodes and an NPN silicon phototransistor within a shielded SOP package. The design emphasizes high density mounting and ambient light rejection capabilities for reliable signal transmission across isolated boundaries.

Replacement Considerations

PS2705-1-F3-L-A offers similar electrical characteristics but may differ in packaging or availability status. PS2705A-1-A provides higher voltage ratings but is marked as not recommended for new designs. Verify pinout compatibility and thermal performance before substituting.