Texas Instruments UCC3818 BiCMOS Power Factor Pregulator IC (16 Pin) 35 A It has a conductive alloy

It has a conductive alloy with a low melting point

High noise margins and strong immunity to isolation-mode transients are provided by this modulation

Brown for these 150K resistors

low-profile SOIC-8 package

Texas Instruments UCC3818 BiCMOS Power Factor Pregulator IC (16 Pin) 35 A It has a conductive alloyThe UCC3818 functions as an active power factor corrected pre regulator. The controller achieves a near unity power factor by shaping the AC input line current waveform to correspond to that of the AC input line voltage. Average current mode control maintains stable, low distortion sinusoidal line current. It is designed by Texas Instruments using the BiCMOS technology. The BiCMOS technology combines the strengths of two different process technologies