The Isocom Components 2004 LTD SFH618A-3X Optoisolator Transistor Photovoltaic Output is a high performance 5.3KV voltage isolation device with fast switching speeds and excellent noise immunity. Its integrated circuit design with transistor photovoltaic output provides improved isolation and noise immunity over standard optocoupler designs. This four-pin DIP package device is an ideal choice for power control protective isolation and making electrical isolation in industrial control systems. The SFH618A-3X offers a compact form factor, dimensional stability, and an operating temperature range of -25°C to 85°C, making it ideal for both industrial and consumer applications. With an illumination current as low as 2mA, the SFH618A-3X is capable of achieving high speed data transmission and data collection across an isolated connection. The Isocom Components 2004 LTD Optoisolator offers excellent surge protection and can easily withstand 6KV peak voltages.