The Lite-On LTV181B is a phototransistor optocoupler that is commonly used in electronic circuits to isolate signals and protect sensitive components from high voltages. The optocoupler features:

• High Isolation Voltage: 3750Vrms
• Collector-Emitter Voltage: 80V
• Collector Current: 50mA

The LTV181B is a reliable and efficient solution for signal isolation and voltage protection in electronic circuits. It is commonly used in power supplies, motor control, and lighting applications. The optocoupler is manufactured by Lite-On Inc., a leading supplier of optoelectronic components.