PS2761B-1-L-A

Overview

The PS2761B-1-L-A is a single-channel transistor output optocoupler manufactured by Renesas Electronics. It features an NPN phototransistor output and utilizes a SOP-4 surface-mount package. The device provides an isolation voltage of 3750 Vrms, with a maximum collector-emitter voltage of 70 V and a maximum collector current of 50 mA. Key electrical parameters include a forward current of 5 mA, a forward voltage of 1.1 V, and a reverse voltage of 6 V. Power dissipation is rated at 230 mW. The unit exhibits rise and fall times of 5 us each, with a collector-emitter saturation voltage of 300 mV. Operating temperature ranges from -55 C to +110 C.

Feature Summary

• Provides high-voltage electrical isolation between input and output circuits via optical transmission.
• Integrates an NPN phototransistor for reliable digital signal switching applications.
• Designed for surface-mount installation in compact electronic assemblies.

Applications

• Industrial control system signal isolation
• Power supply feedback loop monitoring
• Microcontroller interface protection

Procurement Notes

Verify the specific suffix configuration against official Renesas documentation to ensure compatibility with required insulation standards and packaging formats. Confirm availability status through authorized distributors as supply conditions may vary. Cross-reference datasheet specifications for thermal and electrical limits prior to integration into final designs.

Selection Notes

Select this component when a single-channel isolation barrier is required within a limited footprint. Consider the 3750 Vrms insulation rating for safety-critical interfaces. Evaluate the 50 mA collector current capacity against load requirements. Ensure the SOP-4 package aligns with PCB layout constraints and automated assembly capabilities.

Part Context

This part belongs to the PS2761B series of transistor output optocouplers. The series is designed for general-purpose isolation tasks. The specific model variant defines the pinout, insulation characteristics, and package type. It serves as a standard solution for separating low-voltage control logic from higher-voltage power stages.

Replacement Considerations

Consult official cross-reference lists for direct substitutes. Verify that alternative components match the 3750 Vrms isolation voltage and SOP-4 package dimensions. Ensure equivalent electrical parameters such as current transfer ratio and switching speeds are met for functional compatibility.