PS9817-2-A

Logic Output Optoisolators Overview

The PS9817-2-A is an active-low high-speed photocoupler manufactured by CEL. It utilizes a GaAlAs light-emitting diode coupled with an open-collector output stage to provide digital isolation. The device supports data transmission rates up to 10Mbps, classifying it as a high-speed optocoupler. It features a 2-channel configuration within a single package, offering electrical isolation capabilities rated at 2.5kV. The component is designed for surface-mount applications, specifically in the SOP-8 (SSOP) package format, ensuring compact integration into modern electronic circuits requiring fast signal transfer and galvanic separation between input and output domains.

Logic Output Optoisolators Feature Summary

• Active-low logic output configuration for direct interface with digital logic families
• High-speed data transmission capability supporting up to 10Mbps signaling rates
• Dual-channel architecture providing independent signal isolation paths within one package
• GaAlAs LED emitter technology ensuring reliable optical coupling performance

Logic Output Optoisolators Applications

• Industrial communication bus interfaces requiring high-speed isolation
• Digital signal processing systems needing galvanic separation
• Automotive electronic control units with noise immunity requirements
• Medical instrumentation equipment demanding patient safety isolation

Logic Output Optoisolators Procurement Notes

Verify current availability status as this specific part number may be obsolete or discontinued by the manufacturer. Confirm that any substitute components maintain identical pinout compatibility and electrical characteristics. Ensure the replacement source provides valid datasheets matching the original specifications. Check for any ordering suffix variations that might affect package type or temperature range. Validate supplier authenticity to prevent counterfeit components in critical applications.

Logic Output Optoisolators Selection Notes

Choose this component when high-speed digital isolation is required alongside compact surface-mount packaging. The active-low output characteristic suits logic families expecting low-active signals. Consider the 2.5kV isolation rating for safety-critical applications. Verify that the 10Mbps speed meets system timing requirements. Evaluate thermal management needs for the SOP-8 package in dense PCB layouts.

Logic Output Optoisolators Part Context

This part belongs to the PS9817 series of high-speed optocouplers from CEL. The series includes variants like PS9817-1 and PS9817-2, differing primarily in channel count and output configuration. The PS9817-2-A specifically denotes the dual-channel version with active-low outputs. This family targets applications requiring robust digital isolation with fast response times in industrial and consumer electronics.

Logic Output Optoisolators Replacement Considerations

PS9817A-2-AX is listed as a direct substitute available from Renesas Electronics Corporation. Verify pin compatibility and electrical parameters before substitution.