CNX38U3SD

Transistor, Photovoltaic Output Optoisolators Overview

The CNX38U3SD is a single-channel transistor output optocoupler manufactured by onsemi. It features an NPN phototransistor output with a base terminal for enhanced switching performance and stability. The device provides high isolation voltage of 5300 Vrms, suitable for demanding industrial applications. Key electrical parameters include a maximum collector-emitter voltage of 30 V, a maximum forward current of 100 mA, and a power dissipation of 200 mW. The unit operates within a temperature range of -40°C to +100°C and is available in an SMD-DIP-6 package.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Integrated base terminal on the phototransistor output for improved switching speed and reduced storage time.
• High insulation voltage capability ensuring robust signal isolation between input and output circuits.
• Surface-mount SMD-DIP-6 package design facilitating automated assembly and compact board layouts.

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial automation control systems requiring galvanic isolation.
• Power supply feedback loops for voltage regulation.
• Signal transmission across isolated barriers in data communication interfaces.

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to obsolete status. Confirm RoHS compliance documentation matches specific production batches. Validate package integrity upon receipt as surface-mount components are sensitive to handling. Ensure storage conditions adhere to moisture sensitivity levels specified in the datasheet to prevent soldering defects during reflow processes.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when base-driven phototransistor performance is required for faster switching applications compared to standard emitter-only outputs. Consider the 5300 Vrms isolation rating for safety-critical designs. Evaluate thermal management requirements given the 200 mW power dissipation limit in enclosed environments. Compare against similar models like CNX39U3SD if different current transfer ratios are needed for specific gain requirements.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to onsemi's CNX series of high-voltage optocouplers designed for industrial and commercial applications. The series emphasizes reliability and high insulation capabilities. The CNX38U3SD specifically targets applications needing fast response times facilitated by the base connection. It represents a specialized solution within the broader transistor output optoisolator category.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Check for pin-compatible alternatives such as CNX39U3SD or CNX36U3SD from the same manufacturer family. Verify that substitute parts meet the same 5300 Vrms isolation and 30 V collector-emitter voltage specifications. Ensure the replacement maintains the SMD-DIP-6 package form factor for existing PCB footprints.