| Компонент | Описание | Производитель | |
| 2N4221 | Junction FETs Low Frequency/ Low Noise |
Central Semiconductor Corp |
|
| 2N4221 | N - CHANNEL JFETS GENERAL - PURPOSE DEVICE TYPES |
InterFET Corporation |
|
| 2N4221 | N-Channel Silicon Junction Field-Effect Transistor |
InterFET Corporation |
|
| 2N4221 | N-CHANNEL JFET |
Intersil Corporation |
|
| 2N4221A | N-Channel Silicon Junction Field-Effect Transistor |
InterFET Corporation |
|
| 2N4221A | N - CHANNEL JFETS GENERAL - PURPOSE DEVICE TYPES |
InterFET Corporation |
|
| UN4221 | Silicon NPN epitaxial planer transistor |
Panasonic Semiconductor |