CNX39US

Transistor, Photovoltaic Output Optoisolators Overview

The CNX39US is a single-channel transistor output optocoupler manufactured by onsemi. It features an NPN phototransistor with a base terminal for improved switching performance and isolation reliability. The device provides a high isolation voltage of 5300 Vrms, ensuring robust signal transmission in electrically noisy environments. Key electrical parameters include a maximum collector-emitter voltage of 30 V, a collector current rating of 100 mA, and a forward current capability of 100 mA. The unit operates within a temperature range of -40°C to +100°C and is housed in a compact SMD-DIP-6 package.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Integrated base terminal on the phototransistor output to enhance switching speed and reduce storage time.
• High insulation voltage rating of 5300 Vrms for reliable galvanic isolation between input and output circuits.
• Compact surface-mount DIP-6 package design suitable for automated assembly and space-constrained applications.

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial control systems requiring isolated signal transmission
• Power supply feedback loops for voltage regulation
• Microcontroller interface circuits for noise immunity

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify component authenticity through authorized distribution channels due to end-of-life status. Confirm RoHS compliance documentation matches specific manufacturing lot requirements. Validate package marking against official datasheet specifications to prevent counterfeit substitution. Ensure storage conditions adhere to moisture sensitivity level guidelines prior to reflow soldering processes.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when high isolation voltage and fast switching are required in a small footprint. The integrated base allows for faster turn-off times compared to standard phototransistors. Consider thermal dissipation limits of 200 mW during continuous operation. Verify that the 30 V collector-emitter voltage meets the load requirements of the target circuit application.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the general category of transistor output optocouplers from onsemi. It serves as a legacy component for designs prioritizing high isolation integrity. The SMD-DIP-6 form factor bridges through-hole layout compatibility with surface-mount assembly techniques. It replaces older through-hole variants while maintaining similar electrical characteristics for retrofitting purposes.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Check for direct pin-compatible substitutes with identical isolation ratings. Verify if newer generations offer improved CTR consistency or lower power consumption. Ensure any replacement maintains the same 5300 Vrms insulation class for safety certification compliance.