Part Number: 139L20D502 (Vishay (sfernice)) Part Number: 139L4E203 (Potentiometer) Part Number: 139L4E502 (Potentiometer) Part Number: 139L50D103 (Vishay (sfernice)) Part Number: 139L8D502 (Vishay (sfernice)) Part Number: 139L9D502 (Vishay (sfernice)) Part Number: 139LB (Sop8) Part Number: 139-M0104R066B (No description) Part Number: 139M1509 (Integrated) Part Number: 139M5895 (Rectifier pde) Part Number: 139M5985 (Avail 2-4wks, drop in replacemen) Part Number: 139M6286 (Avail 2-4wks, drop in replacemen) Part Number: 139M6305 (Avail 2-4wks, drop in replacemen) Part Number: 139M6332 (Avail 2-4wks, drop in replacemen)