PS2761B-1-F3-L-A

Overview

The PS2761B-1-F3-L-A is a single-channel transistor output optocoupler housed in a 4-pin SOP package. It features an NPN phototransistor output with a maximum collector-emitter voltage of 70 V and a peak forward current of 5 mA. The device provides 3750 Vrms isolation voltage and operates within a temperature range of -55°C to 110°C. Key electrical parameters include a minimum current transfer ratio of 100% at 5 mA, a maximum C-E saturation voltage of 300 mV, and rise/fall times of 5 µs.

Feature Summary

• High isolation voltage capability for safe signal transmission between isolated circuits
• Wide operating temperature range suitable for demanding industrial environments
• Fast switching characteristics with defined rise and fall times
• Compact surface-mount packaging for automated assembly

Applications

• Industrial control systems requiring galvanic isolation
• Power supply feedback loops
• Microcontroller interface circuits
• Signal transmission across isolation barriers

Procurement Notes

Verify the exact suffix 'L-A' against manufacturer documentation, as variations may indicate specific tape-and-reel packaging or regional compliance differences. Confirm availability status, as some sources list this variant as discontinued or limited stock. Ensure the ordering part number matches the required insulation class and package type specified in the official datasheet before placing orders.

Selection Notes

Select this component when high isolation voltage and wide temperature operation are required. The NPN output suits digital switching applications. Verify that the 5 mA forward current requirement aligns with the driving circuit capabilities. Consider the SOP-4 footprint for PCB layout constraints. Ensure the 3750 Vrms rating meets the safety standards of the target application.

Part Context

This part belongs to the PS2761 series of single-channel photocouplers from CEL (now Renesas). The series is designed for general-purpose isolation applications. The 'B' suffix typically denotes specific CTR bins or performance grades. The 'F3' indicates the SOP-4 package style. This family offers a balance of speed, isolation, and reliability for industrial use.

Replacement Considerations

Check for direct cross-reference models from Renesas or other manufacturers offering identical pinouts and electrical specs. Verify that any substitute maintains the 3750 Vrms isolation and 110°C max operating temperature. Ensure the replacement has compatible current transfer ratio ranges and switching times.