L-503ED и другие
| Компонент | Описание | Производитель | |
| 2SC3503ESTU | NPN Epitaxial Silicon Transistor |
Fairchild Semiconductor |
 |
| 303UC503E | Miniature 3 mm surface mount chip-type cermet trimmer potentiometer |
CTS Corporation |
|
| 307UC503E | Commercial miniature 6 mm cermet trimmer potentiometer |
CTS Corporation |
|
| 307UC503EA | Commercial miniature 6 mm cermet trimmer potentiometer |
CTS Corporation |
|
| 307XC503E | Commercial miniature 6 mm cermet trimmer potentiometer |
CTS Corporation |
|
| 307XC503EA | Commercial miniature 6 mm cermet trimmer potentiometer |
CTS Corporation |
|
| 3314G-1-503E | 3314 - 4 mm Square Trimpot^ Trimming Potentiometer |
Bourns Electronic Solutions |
|
| 450TA503EB1 | Industrial 15/16 (24mm) diameter 1/2 watt composition variable resistor |
CTS Corporation |
|
| 450TA503EB1S | Industrial 15/16 (24mm) diameter 1/2 watt composition variable resistor |
CTS Corporation |
|
| 450TA503EB2 | Industrial 15/16 (24mm) diameter 1/2 watt composition variable resistor |
CTS Corporation |
|