| No | Part number | Description ( Function ) | Manufacturers | |
| 2 | A8181SLB | Surface-Mount/ Low Circuit Current/ Low Dropout Voltage Dropper Type qA8181SLB Series A8181SLB Series Allegro Microsystems, INC. product Surface-Mount, Low Circuit Current, Low Dropout Voltage Dropper Type sFeatures • Surface-mount package • Output current: 0.5A • Low circuit current Iq≤120µA (Output ON) Iq(off)≤20µA(Output OFF) • Low dropout voltage: VDIF≤0.3V (at IO=0.5A) • Output ON/OFF control terminal is compatible with |
 Sanken electric |
|
| 1 | A8181SLB | LOW-DROPOUT/ 5 V REGULATOR . HIGH EFFICIENCY 8181 LOW-DROPOUT, 5 V REGULATOR 8181 LOW-DROPOUT, 5 V REGULATOR — HIGH EFFICIENCY Especially suited for hand-held, portable, battery-operated equipment such as cellular telephones, the A8181SLB low dropout voltage regulator provides high efficiency for maximum battery life in a minimum package size. Equally applicable to camcorders and portable computers, the device provide |
 Allegro MicroSystems |
|
List of most widely used semiconductors
| Part Number | Function | Manufacturers | |
| 1N4007 | The 1N4007 is a rectification diode that is designed for high-voltage applications, typically up to 1000V. It has a maximum current rating of 1A and a forward voltage drop of around 0.7V. |
 Vishay |
|
| LM317 | This is a popular adjustable voltage regulator. |
 ON Semiconductor |
|
6N137 | LM393 | 2N3906 | 2N2222 | TIP120 | 1N5818 | LM324N | A1015 | SMAJ20CA |
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