4N35 (OptoCoupler Optoisolator) DIP-6

The 4N35 Optocoupler is a general-purpose opto-isolator that combines an infrared LED and a phototransistor in a single 6-pin DIP package. By transferring signals optically instead of electrically, it effectively isolates input and output sections, helping protect sensitive electronics from voltage spikes, ground loops, and electrical noise.

This component is commonly used in digital interfaces, microcontroller inputs, and power control circuits where signal integrity and safety are critical. Its simple operating principle, reliable performance, and long-standing industry adoption make the 4N35 a trusted choice for hobbyists, students, and professional engineers alike.

Features:

• Provides electrical isolation between input and output.
• Infrared LED coupled with phototransistor output.
• Suitable for logic level signal interfacing.
• Reduces noise and ground loop problems.
• Compatible with microcontrollers and digital circuits.
• Through-hole package for easy PCB mounting.
• Reliable and widely supported industry standard.