ST GS-R405S MODULE 20W TO 140W STEP-DOWN SWITCHING USA ship

10pcs MC34063 MC34063A 1.5A Step-Up/Down Inverting Switching Reg Replaces UC3842

2pcs LT LT1074CT TO-220 Step-Down Switching Regulator RH

10pcs New L5973D L5973 step down switching regulator SOP-8 ST

2pcs ST L4971 DIP-8 1.5A STEP DOWN SWITCHING REGULATOR RH

1-15PCS Step-Down Switching Regulator Switching Power Converter Lm2596S DC-DC

AC-DC 5V 2000mA Low Ripple Switching Step Down Power Supply Module AC 220V to DC

10 PCS L5972D SOP-8 L5972 2A SWITCH STEP DOWN SWITCHING REGULATOR new