| Компонент | Описание | Производитель | |
| DCR504/10 | Thyristor. Vrrm = 1000V, Vrsm = 1100V. D.C. motor control, controlled rectifiers, A.C controllers. |
Usha India Ltd. |
|
| DCR504/12 | Thyristor. Vrrm = 1200V, Vrsm = 1300V. D.C. motor control, controlled rectifiers, A.C controllers. |
Usha India Ltd. |
|
| DCR504/14 | Thyristor. Vrrm = 1400V, Vrsm = 1500V. D.C. motor control, controlled rectifiers, A.C controllers. |
Usha India Ltd. |
|
| DCR504/16 | Thyristor. Vrrm = 1600V, Vrsm = 1700V. D.C. motor control, controlled rectifiers, A.C controllers. |
Usha India Ltd. |