What is aluminum electrolytic capacitors, audio grade, DC converters

 EEV-FK Series 25 V 1000 uF Ø 12.5 x 13.5 mm 105°C Low Impedance SMT Electrolytic

https://www.futureelectronics.com/p/passives--capacitors--aluminum-electrolytic-capacitors/eev-fk1e102q-panasonic-6028596

Power regulator, switching regulator circuit, switch mode power supply

 MP2451 Series 36 V 0.6 A 2 MHz Surface Mount Step-Down Converter - SOT-23-6

https://www.futureelectronics.com/p/semiconductors--analog--regulators-reference--switching-regulators/mp2451dt-lf-z-monolithic-power-systems-2045646

Bipolar transistors switching, bjt as amplifier and switch, NPN transistors

 BAS40-06W

BAS40-06W, SOT-323

https://www.futureelectronics.com/p/semiconductors--discretes--transistors--bipolar-transistors/bas40-06w-surge-6161530

N-channel mosfet array, mosfet manufacturers, Mosfets gate

 Single N-Channel 250 V 0.28 Ohms Flange Mount Power Mosfet - TO-220AB

https://www.futureelectronics.com/p/semiconductors--discretes--transistors--mosfets/irf644pbf-vishay-2537231

Electrical contact pins, header contains, rectangular power connectors

 Ultra Fast 22-18 AWG Straight Fully Insulated Receptacle Assembly

https://www.futureelectronics.com/p/interconnect--pin-and-socket-connectors--crimp-terminals/2-520102-2-te-connectivity-1904077

Electrolytic capacitor values, Solid polymer capacitor, audio grade

 EEE-FK Series 50 V 22 uF Ø 6.3 x 5.8 mm 105 °C Low ESR SMT Electrolytic

https://www.futureelectronics.com/p/passives--capacitors--aluminum-electrolytic-capacitors/eee-fk1h220p-panasonic-2028619

Aluminum electrolytic capacitor manufacturers, electrolytic capacitor values

 EEE-S Series 50 V 100 uF Ø 8 x 10.2 mm 85 °C SMT V-Chip Aluminum Electrolytic

https://www.futureelectronics.com/p/passives--capacitors--aluminum-electrolytic-capacitors/eee-1ha101up-panasonic-2028617