PS2915-1-A

Overview

The PS2915-1-A is a photovoltaic output optoisolator manufactured by CEL. It integrates a GaAs light-emitting diode and an NPN silicon phototransistor within a single ultra-small flat-lead package measuring 4.6 mm in length, 2.5 mm in width, and 2.1 mm in height. The device provides 2500Vrms isolation voltage between input and output channels. Key electrical specifications include a minimum current transfer ratio of 100% at 1mA forward current, a maximum collector-emitter voltage of 40V, and a maximum collector current of 40mA.

Feature Summary

• Integrates GaAs LED and NPN phototransistor for high-speed signal transmission
• Ultra-small flat-lead package design for space-constrained applications
• High current transfer ratio ensuring reliable signal coupling

Applications

• Industrial control systems requiring galvanic isolation
• Measurement and testing equipment circuits
• Communication interface isolation barriers

Procurement Notes

Verify the specific suffix designation carefully during procurement, as variations such as -F3 or -AX may indicate different tape-and-reel packaging configurations or minor mechanical distinctions while maintaining identical electrical performance. Confirm that the component status is acceptable for your production timeline, as some listings indicate obsolete status for certain manufacturing batches. Ensure compatibility with standard surface-mount assembly processes given the small form factor.

Selection Notes

Select this component when a compact footprint is critical alongside moderate speed requirements. The 40V collector-emitter voltage rating suits low-voltage logic interfacing. Consider the typical 200% current transfer ratio for efficient drive capability. Verify that the 5us rise time meets the timing constraints of your specific application circuit before finalizing the design integration.

Part Context

This part belongs to the PS2915 series of transistor output optocouplers produced by CEL, now often associated with Renesas Electronics distribution channels. The series is characterized by its small SSOP4 or flat-lead package options designed for high-density PCB layouts. It serves as a direct replacement for legacy isolators requiring similar isolation voltages and pin configurations in industrial and consumer electronics.

Replacement Considerations

Publicly confirmed substitute part numbers are not explicitly listed in the provided documentation. Engineers should verify pinout compatibility and electrical parameters against potential alternatives from other manufacturers offering similar 4-pin flat-lead optoisolators with comparable CTR and isolation ratings.