DIY LM338K 3A Step Down Power Supply Module DIY Kit for Arduino Raspberry pi
Parameters:

 1.Circuit board size: 9.6*5.8cm
 2.DC input: 3-35V
 3.AC input: 1-25V
 4.DC output:1.2-30V
 5.Maximum current: 3A
 6.Input and output the minimum differential pressure: 3V
 7.Maximum power consumption: 50W

 Listing:

 PCB    x1
 KF301-2    x1
 terminal(red and black)    x1
 1N4007    x2
 KBL608     x1
 200ohm 1W resistor    x1
 4.7K ohm resistor    x1
 3MM blue LED    x1
 104 capacitor    x3
 50V100UF capacitor    x1
 50V2200UF capacitor    x1
 50V4700UF capacitor    x1
 101 switch    x1
 Potentiometer knob    x1
 Potentiometer stents    x1
 M3*6 screw    x2
 5K Potentiometer and the screw nut    x1
 LM7812    x1
 338K Heat sink     x1
 12V fun    x1
 LM338K    x1
 30V3A PPTC     x1
 M3*50MM screw    x4
 3MM nut    x20
 20mm copper cylinder    x4
 4MM copper sheet    x4
 4MM nut    x2
 4*10 screw    x2

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