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Welding diodes
Welding diodes are designed for medium and high frequency welding equipment and optimized for high current rectifiers. The on-state voltage is very low and the output current is high.
ABB is selling both normal housed and housing-less welding diodes. The latter is becoming more and more important in high current welding applications for joining of high refractory materials.
| Medium frequency Part number | VRRM (V) | IFAVM (A) | IFSM (kA) | Package* (mm) |
| 5SDD 71X0200 | 200 | 7110 | 55.0 | 60/44 |
| 5SDD 0120C0200 | 200 | 11000 | 85.0 | 75/57 |
5SDD 71B0200 | 400 | 7110 | 55.0 | 62/44 |
| 5SDD 71X0400 | 400 | 7110 | 55.0 | 60/44 |
| 5SDD 0120C0400 | 400 | 11350 | 85.0 | 75/57 |
| 5SDD 92Z0401 | 400 | 9250 | 60.0 | 53/47 |
| 400 | 10502 | 70.0 | 56/49.5 | |
| 5SDD 0135Z0401 | 400 | 13500 | 85.0 | 63.5/57 |
| High Frequency Part number | VRRM (V) | IFAVM (A) | IFSM (kA) | Package* (mm) |
| 5SDF 63B0400 | 400 | 6266 | 44 | 63/44 |
| 5SDF 63X0400 | 400 | 6266 | 44 | 61/44 |
| 5SDF 90Z0401 | 400 | 9041 | 48 | 53/47 |
| 400 | 10159 | 70 | 75.5/57 | |
| 5SDF 0103Z0401 | 400 | 10266 | 54 | 56/49.5 |
| 5SDF 0131Z0401 | 400 | 13058 | 70 | 63.5/57 |
*Note: maximum diameter / pole-piece diameter