ES51W4 и другие
| Компонент | Описание | Производитель | |
| ES51W4 | OSCILLATOR |
Ecliptek Corporation |
 |
| MS51W | RED LED LAMPS |
Micro Electronics |
|
| MS51WA | RED LED LAMPS |
Micro Electronics |
|
| SN54LS51W | AND-OR-INVERT GATES |
Texas Instruments |
|
| SN54S51W | AND-OR-INVERT GATES |
Texas Instruments |
|
| SNJ54LS51W | AND-OR-INVERT GATES |
Texas Instruments |
|
| SNJ54S51W | AND-OR-INVERT GATES |
Texas Instruments |
|