Tender For supply of thyrister diode module 1. vrsm 1900 v 2. vrrm 1800 v 3. vdrm 1800 v 4. it(av) sinus 180 at temp of 85 degree c is 570 a & 100 degree c is 435 a 5. itrms continuous operation: 1000 a techincally and physically equivalent to skkh 570/18e of semikron make or similar [ warranty period: 30 months afterthe date of delivery ]