TLP521 Optocoupler Phototransistor Output (DIP-4)

The TLP521 is a general-purpose optocoupler that provides electrical isolation between input and output circuits. It integrates an infrared LED and a phototransistor in a single 4-pin package, making it ideal for signal isolation, microprocessor interfacing, and switching applications in electronic circuits.

Specifications:

Type: Optocoupler / Phototransistor Output

Package: DIP-4

Input Type: Infrared LED

Output Type: NPN Phototransistor

Isolation Voltage: 5000 Vrms

Collector-Emitter Voltage (Vce): 80 V (max)

Current Transfer Ratio (CTR): 50% to 600%

Operating Temperature: -55°C to +110°C

Applications: Signal isolation, microcontroller interface, switching circuits, SMPS feedback, data communication