4N353SD

Transistor, Photovoltaic Output Optoisolators Overview

The onsemi 4N353SD is a single-channel transistor output optocoupler housed in a surface-mount SMD-DIP-6 package. It features an NPN phototransistor output with a base lead for enhanced switching performance and stability. The device provides high isolation voltage of 5300 Vrms between input and output circuits. Key electrical parameters include a maximum collector-emitter voltage of 30 V, a forward voltage of 1.5 V, and a power dissipation rating of 250 mW. It operates within a temperature range of -55°C to +100°C.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Integrated base lead on the phototransistor output to improve switching speed and reduce storage time.
• High isolation capability with 5300 Vrms insulation voltage for robust circuit protection.
• Surface-mount SMD-DIP-6 packaging designed for automated assembly processes.

Transistor, Photovoltaic Output Optoisolators Applications

• Signal isolation in industrial control systems
• Interface circuits for microcontrollers and logic devices
• Power supply feedback loops

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm lot traceability and RoHS compliance status prior to procurement. Ensure storage conditions meet specified humidity and temperature limits to maintain reliability. Review datasheet revisions for any parameter updates before finalizing design integration.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when surface-mount assembly is required alongside high isolation voltage needs. The integrated base terminal offers superior switching characteristics compared to standard phototransistor outputs without base access. Evaluate thermal management requirements based on the 250 mW power dissipation limit and operating temperature range of -55°C to +100°C.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the 4N35 series of optocouplers from onsemi, which are widely used for general-purpose signal isolation. The 4N353SD variant specifically adapts the traditional through-hole 4N35 functionality into a surface-mount format, maintaining compatibility with existing designs while enabling PCB space optimization and automated manufacturing.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult official replacement guides or contact onsemi directly for qualified alternatives if this obsolete component requires substitution.