TRF-4000L и другие
| Компонент | Описание | Производитель | |
| IRF4000 | IEEE 802.3af Compliant PoE Switch in Power Sourcing Equipment |
International Rectifier |
 |
| PTRF4000L | Surface Mount Tip and Ring Filters |
Coilcraft lnc. |
|
| TRF-4000L | Tip and Ring Common Mode Filters |
Coilcraft lnc. |
|
| TRF4000 | PCS RF DOWNCONVERTER |
Texas Instruments |
|
| TTTRF4000 | Surface Mount Tip and Ring Filters |
Coilcraft lnc. |
|