PS2811-4-A

Overview

The PS2811-4-A is a transistor output optocoupler manufactured by Renesas Electronics Corporation. It features four channels within a 16-pin SSOP package, designed for surface mount applications. The device incorporates an NPN phototransistor output and provides an insulation voltage of 2500 Vrms. Key electrical parameters include a collector-emitter voltage of 80 V, a maximum collector current of 50 mA, and a forward voltage of 1.4 V at a forward current of 50 mA. The current transfer ratio ranges from 80% to 600%, with a maximum collector-emitter saturation voltage of 300 mV. Operating temperatures span from -55°C to +100°C.

Feature Summary

• Contains four independent channels for multi-signal isolation
• Utilizes an NPN silicon phototransistor output structure
• Provides high insulation voltage capability for safety isolation
• Designed for reliable data transmission in noisy environments

Applications

• Industrial control systems requiring signal isolation
• Power supply feedback loops
• Communication interface isolation
• Microprocessor input/output isolation

Procurement Notes

Verify the component status as Not For New Designs (NRND) before procurement. Confirm that the 16-pin SSOP package aligns with existing PCB footprints. Ensure the NPN output configuration meets circuit requirements. Check datasheet revisions for any specific handling instructions related to the plastic SSOP enclosure.

Selection Notes

Select this component when four-channel isolation is required in a compact surface mount form factor. The NPN phototransistor output suits logic interfacing applications. Verify that the 80 V collector-emitter voltage rating exceeds the load voltage. Consider the 2500 Vrms insulation rating for safety compliance needs.

Part Context

This part belongs to the PS2811 series of optically coupled isolators. The series typically includes variants with different channel counts, such as single-channel models. The PS2811-4-A specifically addresses applications needing multiple isolated signals within a single package, utilizing GaAs LEDs and NPN phototransistors.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Due to the NRND status, alternative sourcing or design updates may be necessary.