CNW139S

Transistor, Photovoltaic Output Optoisolators Overview

The CNW139S is a high-voltage optocoupler manufactured by onsemi, featuring a Darlington output configuration. It provides electrical isolation between input and output circuits with a rated isolation voltage of 1000Vrms. The device utilizes an infrared LED coupled to a photodetector array to transmit signals across the isolation barrier. Designed for surface-mount applications, it offers robust performance in environments requiring reliable signal transmission with high noise immunity.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• High isolation voltage rating of 1000Vrms
• Darlington output configuration for high current transfer ratio
• Surface-mount package design for automated assembly

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial control systems
• Power supply feedback loops
• Signal isolation in noisy environments

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix and tape-and-reel quantity against the official datasheet before ordering. Confirm that the 1000Vrms isolation rating meets the safety requirements of your target application. Ensure compatibility with standard SMD reflow profiles during manufacturing integration.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when high isolation voltage and high gain are required in a compact surface-mount form factor. Consider the Darlington output's higher saturation voltage compared to single-transistor outputs when designing load circuits. Evaluate thermal management needs based on the power dissipation characteristics defined in the device specifications.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to onsemi's portfolio of optoelectronic isolation devices. Optocouplers like the CNW139S are critical for breaking ground loops and protecting low-voltage control circuitry from high-voltage transients in power electronics and industrial machinery.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Check for direct pin-compatible alternatives within the same manufacturer's lineup that may offer updated packaging or slightly different isolation ratings. Verify that any substitute maintains the 1000Vrms isolation requirement and compatible output current capabilities.