The Fairchild/ON Semiconductor isolator is a 4-mini-flat surface-mount transistor designed for use in isolator applications. This device features a forward voltage of 1.3V (Max), a minimum DC current transfer ratio of 50% at 5mA, and a maximum DC current transfer ratio of 600% at 5mA. With an isolation voltage of 3750Vrms and a maximum output voltage of 80V, this isolator is ideal for use in high-voltage applications. The device has a channel output current of 80mA and a continuous forward current of 50mA. It is rated for operation in a temperature range of -40°C to 100°C and is obsolete (EOL). This isolator has a medium popularity.