CNX39U3S

Transistor, Photovoltaic Output Optoisolators Overview

The CNX39U3S is a single-channel transistor output optocoupler manufactured by onsemi. It features an NPN phototransistor with a base terminal for enhanced switching performance and stability. The device provides high isolation capability with an insulation voltage of 5300 Vrms. Key electrical parameters include a maximum collector-emitter voltage of 30 V, a maximum collector current of 100 mA, and a forward current of 100 mA. The typical current transfer ratio is 100% at 10 mA input. It operates within a temperature range of -40°C to +100°C and is housed in a 6-SMD,鸥翼型 (gull-wing) package.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Integrated base terminal on the NPN phototransistor output for improved switching speed and reduced storage time.
• High isolation voltage rating of 5300 Vrms ensuring robust signal transmission across isolated boundaries.
• Single-channel configuration designed for compact circuit board layouts.

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial control systems requiring galvanic isolation
• Signal transmission between microcontrollers and power stages
• General-purpose digital isolation applications

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix '3S' confirms the 6-SMD gull-wing package variant when sourcing. Confirm RoHS compliance status through official manufacturer documentation or authorized distributors prior to procurement. Ensure the supplier provides traceable origin data consistent with onsemi manufacturing standards.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when a base-driven phototransistor is required for faster switching compared to standard unbase variants. Consider the 6-SMD footprint compatibility during PCB layout design. Evaluate the 5300 Vrms isolation requirement against system safety standards. Verify that the 30 V collector-emitter voltage meets the load requirements.

Transistor, Photovoltaic Output Optoisolators Part Context

The CNX39U3S belongs to the CNX series of optocouplers from onsemi, which are designed for general-purpose isolation applications. This series typically offers small form factors suitable for surface-mount technology. The part represents a transition from traditional DIP packages to more compact SMD solutions while maintaining high isolation performance.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Check for direct pin-compatible replacements such as the CNX35UW if package variations exist within the same family. Verify functional equivalence regarding the base terminal presence and isolation voltage ratings before substitution.