Avalanche thyristors

Features 
nbsp;Hermetic metal case with ceramic insulator.
nbsp;Precise internal pressure contacts for high
nbsp;Resistance to power cycling.
nbsp;Guaranteed maximum avalanche power
nbsp;dissipation in reverse direction.
Typical applications
Controlled and half-controlled rectifiers.
nbsp;AC controllers.
nbsp;High power drives for industrial and traction
Type designations thyristors
T -L -3-7-1-2-5-0
1 -2-3-4-5-6-7-8
1.Letter code T,for “ thyristor &rdquo
2.Letter code for subtype of thyristor:B-fast, BH-fast switching,TC-triac,L-avalanche
3.Serial number of construction modification
4.Designation of modification according to hexahedron size for stud thyristors or according to case diameter for press-pack thyristors
5.Designation of constructive design of case
on-state current,max,RMS forward current for triacs,max.Turn-off current for GTO(A)
7.Class according to VDRM,VRRM
8.Group according to(dv/dt) crit
9.Group according to tq
10.Group according to tgt(for TB and TBH)