PS2911-1-AX

Overview

The PS2911-1-AX is a single-channel transistor output optocoupler manufactured by Renesas Electronics. It features an NPN phototransistor output and utilizes an SSOP-4 surface-mount package. The device provides 2500 Vrms insulation voltage for signal isolation. Key electrical parameters include a maximum collector-emitter voltage of 40 V, a maximum collector current of 40 mA, and a power dissipation of 180 mW. The current transfer ratio ranges from 100% to 400%, with a typical forward voltage of 1.3 V at a maximum forward current of 50 mA. Operating temperatures span from -55°C to +100°C.

Feature Summary

• Provides galvanic isolation between input and output circuits using infrared LED and NPN phototransistor technology.
• Designed for high-speed switching applications with defined rise and fall times.
• Offers robust insulation performance suitable for protecting low-voltage control circuits from high-voltage loads.

Applications

• Industrial automation control systems
• Power supply feedback loops
• Microcontroller interface circuits

Procurement Notes

Verify the specific manufacturer designation on the datasheet, as the suffix AX may correspond to different packaging or manufacturing origins such as CEL or Renesas depending on the source. Confirm the component lifecycle status, as some listings indicate NRND (Not Recommended for New Designs) or obsolete status. Ensure the ordering information matches the required package type and compliance standards before finalizing procurement.

Selection Notes

Select this component when a single-channel isolation barrier is required with moderate speed capabilities. The SSOP-4 package offers a compact footprint for space-constrained designs. Verify that the 40 V collector-emitter voltage rating meets the load requirements. Consider the current transfer ratio range to ensure sufficient gain for the driving circuit. Check for alternative packages if higher pin counts are needed in the future.

Part Context

This part belongs to the PS2911 series of transistor output optocouplers. The series typically includes variants with different suffixes indicating package types or specific electrical characteristics. The PS2911-1-AX represents a standard configuration within this family, focusing on general-purpose isolation tasks. Related parts in the lineup may offer multiple channels or different output types.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Users should consult official cross-reference guides or contact the manufacturer for verified alternatives. Ensure any replacement maintains the same isolation voltage, package dimensions, and electrical ratings.