The OLI100 is designed especially for hybrid applications that require optical isolation with a high current transfer ratio and low saturation VCE. The device consists of a light emitting diode, and an N-P-N silicon phototransistor mounted and coupled in a miniature custom ceramic package.

The very low input current makes the OLI100 well suited for direct CMOS to Low Power Schottky Transistor to Transistor Logic (LSTTL/TTL) interfaces.

The OLI100 is mounted by standard hybrid assembly with nonconductive epoxies. Gold or aluminum wire bonding can be used to make electrical connections for maximum placement flexibility.