PS2815-4-L-A

Overview

The PS2815-4-L-A is a four-channel optically coupled isolator manufactured by CEL (California Eastern Laboratories), now part of Renesas Electronics. It integrates GaAs infrared emitting diodes with NPN silicon phototransistors in a 16-pin Shrink Small Outline Package (SSOP). The device provides an isolation voltage of 2500 Vrms and supports a collector-emitter voltage of 40V. It operates within a temperature range of -55°C to +100°C, featuring a maximum forward current of 50 mA and a power dissipation of 120 mW.

Feature Summary

• Four independent channels for high-density signal isolation
• High current transfer ratio for reliable switching performance
• Compact shrink SSOP package suitable for space-constrained designs

Applications

• Industrial control systems requiring multi-channel isolation
• Measurement and testing equipment
• Power supply feedback circuits

Procurement Notes

Verify the manufacturer origin carefully, as this component was originally produced by CEL and is now under Renesas Electronics. Confirm the specific suffix 'L-A' matches your board footprint requirements. Check current availability status, as some distributors may list limited stock or obsolete status. Ensure RoHS compliance documentation aligns with your regulatory needs.

Selection Notes

Select this component when multiple isolated channels are required in a compact form factor. The 40V output rating suits low-voltage digital logic interfaces. Consider the thermal characteristics given the 120 mW power dissipation limit in dense PCB layouts. Verify that the 2500 Vrms isolation level meets the safety standards of the target application environment.

Part Context

This part belongs to the PS2815 series of photocouplers designed for high-density applications. The series typically includes single-channel variants like the PS2815-1. The four-channel configuration distinguishes it from lower-density options, offering integrated isolation for parallel data lines or control signals within a single small outline package.

Replacement Considerations

Direct substitutes include other four-channel transistor-output optocouplers in 16-SSOP packages with similar isolation ratings. Verify pin compatibility and electrical parameters such as CTR and isolation voltage before substitution.