The HCPL4503M IC-4503 OPTO DRIVER DIP8 The HCPL4503M by ONS (FAIRCHILD) is a cutting-edge phototransistor optocoupler designed for reliable and efficient isolation. With an output voltage of 20V and an output current of 8mA, it ensures excellent performance across various systems. This optocoupler features an isolation voltage of 5000Vrms and a forward voltage of 1.45V, making it suitable for demanding applications. Operating in a temperature range of -40°C~+100°C, the HCPL4503M is built to withstand challenging environments. Compliant with ROHS standards and packaged in a TUBE format, this optocoupler is the ideal choice for advanced electronic designs.