| No | Part number | Description ( Function ) | Manufacturers | |
| 5 | LT1039 | RS232 Driver/Receiver with Shutdown LT1039/LT1039-16 RS232 Driver/Receiver with Shutdown FEATURES s s s s s s s s s s s s s DESCRIPTIO Operates from ± 5V to ±15V Supplies Fully Protected Against Overload Outputs Can Be Driven ± 30V Without Damage Three-State Outputs; Outputs Open When Off Bipolar Circuit—No Latchup ± 30V Input Range Triple Driver/Receiver No Supply Current in Shutdown 30kΩ Input Impedan |
 Linear Technology |
|
| 4 | LT1039 | Triple EIA-232 Line Transceiver (Rev. B) |
 Texas Instruments |
|
| 3 | LT1039-16 | RS232 Driver/Receiver with Shutdown LT1039/LT1039-16 RS232 Driver/Receiver with Shutdown FEATURES s s s s s s s s s s s s s DESCRIPTIO Operates from ± 5V to ±15V Supplies Fully Protected Against Overload Outputs Can Be Driven ± 30V Without Damage Three-State Outputs; Outputs Open When Off Bipolar Circuit—No Latchup ± 30V Input Range Triple Driver/Receiver No Supply Current in Shutdown 30kΩ Input Impedan |
Linear Technology |
|
| 2 | LT1039A | Triple RS232 Driver/Receiver with Shutdown LT1039A/LT1039A-16 Triple RS232 Driver/Receiver with Shutdown Features n On-Chip ESD Protection: ±15kV Human Body Model ±15kV IEC-1000-4-2 Air Gap Test** ±8kV IEC-1000-4-2 Contact Test n 125kBd Operation with 3kΩ/2500pF Load n 250kBd Operation with 3kΩ/1000pF Load n Outputs Can Be Driven ±30V Without Damage n No Supply Current in Shutdown n Operates from ±5V |
Linear Technology |
|
| 1 | LT1039A-16 | Triple RS232 Driver/Receiver with Shutdown LT1039A/LT1039A-16 Triple RS232 Driver/Receiver with Shutdown Features n On-Chip ESD Protection: ±15kV Human Body Model ±15kV IEC-1000-4-2 Air Gap Test** ±8kV IEC-1000-4-2 Contact Test n 125kBd Operation with 3kΩ/2500pF Load n 250kBd Operation with 3kΩ/1000pF Load n Outputs Can Be Driven ±30V Without Damage n No Supply Current in Shutdown n Operates from ±5V |
Linear Technology |
|
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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