| No | Part number | Description ( Function ) | Manufacturers | |
| 3 | E3F2 | Photoelectric Sensors Photoelectric Sensors E3F2 Threaded Cylindrical Photoelectric Sensors with Built-in Amplifier for Use as an Optical Proximity Switch • M18 DIN-sized cylindrical housing • Housing materials: plastic, nickel plated brass and stainless steel • Axial and radial types (with integrated 90°-optics) • Enclosure rating IP67 • DC switching types with connectors for easy maint |
 Omron |
|
| 2 | E3F2-DS10C4 | (E3F2 Series) M18 Cylindrical Photoelectric R M18 Cylindrical Photoelectric Threaded Cylindrical M18 Size Sensors with Built-in Amplifier H Rugged stainless and nickel plated brass versions E3F2 H H H H H Chemical resistant, ABS resin case type Polarized models Compact and space-saving Long detection distance (7 m) DC switching types with connectors for easy maintenance (10 to 30 VDC, or 24 to 24 |
 Omron Electronics |
|
| 1 | E3F2-xxxx | (E3F2 Series) M18 Cylindrical Photoelectric R M18 Cylindrical Photoelectric Threaded Cylindrical M18 Size Sensors with Built-in Amplifier H Rugged stainless and nickel plated brass versions E3F2 H H H H H Chemical resistant, ABS resin case type Polarized models Compact and space-saving Long detection distance (7 m) DC switching types with connectors for easy maintenance (10 to 30 VDC, or 24 to 24 |
Omron Electronics |
|
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 |
|||