The OLH1047/48/49 are designed especially for high-reliability applications that require optical isolation with high CTR and low saturation VCE. Each optocoupler consists of an LED and N-P-N silicon phototransistor, mounted and coupled in an 8-pin hermetically sealed DIP package. The low input current makes the OLH1047/48/49 compatible for direct CMOS to Low-Power Schottky Transistor-Transistor Logic (LSTTL)/ Transistor-to- Transistor Logic (TTL) interfaces.

All electrical parameters are identical to the JEDEC registered 4N47/48/49. The OLH1047/48/49 have 100 percent highreliability screenings available.