PS2861B-1Y-M-A

Overview

The PS2861B-1Y-M-A is a single-channel transistor output optocoupler manufactured by Renesas Electronics. It integrates a GaAs infrared emitting diode and an NPN silicon phototransistor within a 4-pin Shrink Small Outline Package (SSOP). The device provides high isolation voltage of 3750 Vrms and supports an operating ambient temperature up to 110°C. Key electrical parameters include a maximum collector-emitter voltage of 70 V, maximum collector current of 50 mA, and typical rise/fall times of 4 μs and 5 μs respectively. It features a minimum isolation distance of 0.4 mm and complies with multiple international safety standards including UL, CSA, and BSI.

Feature Summary

• High-speed switching capability with typical rise time of 4 μs and fall time of 5 μs
• High isolation voltage rating of 3750 Vrms for reliable signal transfer
• Extended operating ambient temperature range up to 110°C
• Shielded package design to cut off ambient light interference

Applications

• Interface circuits requiring surface mounting
• Signal transfer circuits in high-density PCB layouts
• Industrial control systems requiring galvanic isolation
• Power supply feedback loops

Procurement Notes

Verify the specific suffix 'M' against the official Renesas datasheet to confirm if it denotes a specific tape-and-reel quantity or packaging variant distinct from standard 'F3' reels. Confirm RoHS compliance status and safety certification approvals (UL, CSA, etc.) as these may vary by manufacturing batch or regional regulatory requirements. Ensure the component is suitable for new designs, noting that some related PS2861 variants may carry NRND status.

Selection Notes

Select this component when high isolation voltage and compact SSOP footprint are required. The 110°C temperature rating makes it suitable for environments with elevated thermal stress. Verify input forward current requirements align with the 5 mA typical drive level. Ensure the application does not require higher speed than the 4 μs rise time allows. Check compatibility with the target PCB land pattern for 4-pin SSOP packages.

Part Context

This part belongs to the PS2861B-1 series of photocouplers designed for general-purpose isolation applications. The series utilizes a Shrink SOP package to facilitate high-density mounting on printed circuit boards. The technology combines a GaAs LED with an NPN phototransistor to provide optical coupling between input and output circuits while maintaining electrical isolation.

Replacement Considerations

Direct substitutes include other PS2861B-1 variants such as PS2861B-1Y-F3-L-A or PS2861B-1Y-V-F3-L-A, provided the packaging and safety certifications match the system requirements. Verify pinout compatibility and electrical parameter equivalence before substitution.