Jeking Available Step Down Dc-Dc module Adjustable Power Supply Module Buck Converter XL 4015 $3.68 - $5.59 Min. order: 1 piece Original NPN Silicon RF Power Transistor MRF485 $8.00 - $11.00 Min. order: 1 piece IC AMP AUDIO 100W AB MULTIWATT15 TDA7294 ...