PS9821-1-V-AX

Logic Output Optoisolators Overview

The PS9821-1-V-AX is a high-speed optocoupler manufactured by Renesas Electronics Corporation. It features a single channel with an open collector output type, designed for surface mount installation in an 8-SSOP package. The device supports a data rate of 15 Mbps and provides an insulation voltage of 2500 Vrms. Key electrical parameters include a typical forward voltage of 1.65 V, a maximum DC forward current of 10 mA, and an output current capability of 25 mA per channel. Propagation delays are specified at 75 ns maximum for both low-to-high and high-to-low transitions. The component operates within a temperature range of -40°C to 85°C.

Logic Output Optoisolators Feature Summary

• High common-mode transient immunity rated at 15 kV/µs for noise-resistant signal transmission
• Active-low logic output configuration compatible with standard digital interfaces
• Integrated AlGaAs LED source ensures reliable optical coupling performance

Logic Output Optoisolators Applications

• Industrial communication bus isolation
• Microcontroller input/output isolation
• Power supply feedback loop isolation

Logic Output Optoisolators Procurement Notes

Verify the specific suffix 'V-AX' against the official Renesas datasheet to confirm packaging and tape-and-reel specifications. Confirm RoHS compliance status and check for any recent Product Change Notices (PCN) regarding label or wafer changes. Ensure the design-in process accounts for the recommended operating conditions defined in the electrical characteristics table.

Logic Output Optoisolators Selection Notes

Select this component when a single-channel high-speed isolation solution with open collector output is required. Compare propagation delay and CMTI ratings against system timing requirements. Verify that the 8-SSOP package dimensions fit the PCB layout constraints. Consider thermal dissipation limits if operating near maximum current thresholds.

Logic Output Optoisolators Part Context

This part belongs to the PS9821 series of high-speed photocouplers from Renesas. The series utilizes AlGaAs light-emitting diodes for efficient optical transmission. The PS9821-1 variant specifically denotes a single-channel configuration, distinguishing it from dual-channel counterparts like the PS9821-2. The NEPOC series designation indicates its classification within Renesas's product portfolio.

Logic Output Optoisolators Replacement Considerations

PS9821-1-F3-AX is listed as a direct replacement option.