PS2703-1-K-A

Overview

The PS2703-1-K-A is a single-channel transistor output optocoupler manufactured by Renesas Electronics. It integrates a GaAs light-emitting diode with an NPN silicon phototransistor within a plastic SOP-4 package designed for high-density applications. The device provides high isolation voltage of 3750 Vrms and supports a maximum collector-to-emitter voltage of 120 V. Key electrical parameters include a forward current of 50 mA, a forward voltage of 1.4 V, and a maximum power dissipation of 150 mW. It operates within a temperature range of -55°C to +100°C.

Feature Summary

• High isolation voltage capability of 3750 Vrms for enhanced safety
• High collector-to-emitter voltage rating of 120 V
• SOP-4 package design with shield effect to block ambient light
• Single isolated channel per package configuration

Applications

• Hybrid ICs
• Telephone and FAX equipment
• Programmable logic controllers

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and lead times prior to ordering. Ensure storage conditions maintain the specified operating temperature range. Check for specific suffix variations that may affect packaging or certification details.

Selection Notes

Select this component for circuits requiring high-voltage isolation between input and output stages. The SOP-4 package suits space-constrained designs needing density. Verify that the 120 V collector-to-emitter voltage meets system requirements. Consider the 3750 Vrms isolation rating for safety-critical signal transmission paths.

Part Context

This part belongs to the PS2703 series of high isolation voltage optocouplers. The series includes variants like PS2703-1-E4 and PS2703-1-L-A, sharing similar core specifications but differing in packaging, certifications, or manufacturing origins. The K-A suffix typically denotes specific taping or reel configurations.

Replacement Considerations

Cross-reference with PS2703-1-E4 or PS2703-1-L-A for functional compatibility. Verify pinout alignment and package dimensions before substitution. Confirm that isolation ratings and voltage limits match the original design requirements.