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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.

Hitachi Energy 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.

For downloading and printing of data sheets in pdf format, click on the part numbers.

Medium frequency
Part number
VRRM (V) IFAVM (A) IFSM (kA) Package* (mm) Offer
5SDD 71X0200 200 7110 55.0 60/44 Request
5SDD 0120C0200 200  11000 85.0 75/57 Request
5SDD 71B0200
200 7110 55.0 62/44 Request
5SDD 71B0400 400 7110 55.0 62/44 Request
5SDD 71X0400 400 7110 55.0 60/44 Request
5SDD 0120C0400 400 11350 85.0 75/57 Request
5SDD 92Z0401 400 9244  60.0 53/47 Request
5SDD 0105Z0401 400 10502 70.0 56/49.5 Request
5SDD 0135Z0401 400 13526 85.0 63.5/57 Request
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