TLP521-4 Optocoupler IC DIP-16 (Quad Photocoupler, Optical Isolation IC)

The TLP521-4 is a quad-channel optocoupler IC designed to provide electrical isolation between input and output circuits using optical signal transmission. It integrates four infrared LEDs and four phototransistor outputs in a single DIP-16 package, making it ideal for industrial automation, microcontroller interfacing, PLC systems, SMPS circuits, and signal isolation applications.

Key Features -

• Quad-channel optocoupler

• High electrical isolation

• Infrared LED input and phototransistor output

• Low input drive current

• Excellent noise immunity

• Reliable signal transmission

• DIP-16 through-hole package

Specifications -

• Product type - Optocoupler IC

• Model - TLP521-4

• Number of channels - 4

• Input type - Infrared LED

• Output type - Phototransistor

• Package type - DIP-16

• Mounting type - Through Hole Mount

• Isolation method - Optical Isolation

• Application - Signal and circuit isolation

• Additional features - High reliability and long operational life

Applications -

• Microcontroller interfacing

• PLC systems

• Industrial automation

• SMPS feedback circuits

• Signal isolation

• Data communication circuits

• Electronic control systems