PS2911-1-F3

Overview

The PS2911-1-F3 is a high current transfer ratio photocoupler featuring a GaAs infrared emitting diode and an NPN silicon phototransistor. It operates with a forward current of 50mA, forward voltage of 1.1V, and reverse voltage of 6V. The device supports an output voltage up to 40V and channel current of 40mA. Typical rise and fall times are 5µs and 10µs respectively. It functions within a temperature range of -55°C to 100°C.

Feature Summary

• Ultra small package flat lead design for high density mounting applications
• High current transfer ratio typical at low input currents
• Integrated GaAs LED and NPN silicon phototransistor

Applications

• High density mounting applications requiring compact isolation
• General purpose signal isolation circuits
• Microprocessor interface circuits

Procurement Notes

Verify the specific suffix against manufacturer documentation to confirm pinout and packaging variations. Confirm availability status as some variants may be obsolete. Ensure the selected part matches the required CTR specifications for the target application circuit design.

Selection Notes

Select this component when ultra-small footprint and high CTR are required. Verify that the 40V output voltage rating meets system requirements. Check thermal limits for operation above 70°C if ambient temperatures are high.

Part Context

This part belongs to the PS2911 family of optically coupled isolators. It utilizes a 4-pin Mini-Flat or similar ultra-small package configuration. The series is designed for applications demanding space-saving solutions without compromising isolation performance.

Replacement Considerations

PS2911-1-F3-L-AX is listed as a parametric equivalent substitute. Verify pin compatibility and electrical parameters before substitution.