PS2811-1-A

Overview

The PS2811-1-A is a single-channel transistor output optocoupler manufactured by Renesas Electronics. It features an NPN phototransistor output and is housed in an SSOP-4 surface-mount package. Key electrical parameters include a collector-emitter voltage of 40 V, a maximum collector current of 40 mA, and a forward voltage of 1.15 V at a forward current of 5 mA. The device provides an insulation voltage of 2500 Vrms and operates within a temperature range of -55°C to +100°C. Power dissipation is rated at 180 mW, with rise and fall times of 4 µs and 5 µs respectively.

Feature Summary

• High current transfer ratio for efficient signal transmission
• Low input current requirement reducing drive power
• Solid-state isolation ensuring reliable circuit separation

Applications

• Industrial control systems requiring signal isolation
• Power supply feedback loops
• Microcontroller interface circuits

Procurement Notes

Verify component authenticity through authorized channels as availability may be restricted. Confirm RoHS compliance status prior to integration. Ensure storage conditions maintain moisture sensitivity levels according to manufacturer guidelines. Validate pinout compatibility with existing PCB layouts before finalizing procurement orders.

Selection Notes

Select this component when low input current and high CTR are required in a compact SMD form factor. Compare against PS2811-1-L-A for identical specifications if lead-free variants are mandated. Ensure the 40 V collector-emitter voltage meets the load requirements of the target application circuit design.

Part Context

This part belongs to the PS2811 series of high CTR optocouplers designed for general-purpose isolation. It shares the SSOP-4 footprint with other family members but differs in specific electrical ratings such as forward current and voltage thresholds compared to higher-power variants like the PS2801 series.

Replacement Considerations

PS2811-1-L-A serves as a direct functional substitute with identical electrical characteristics. Verify that any replacement maintains the same SSOP-4 package dimensions and pin configuration to ensure mechanical compatibility.