Capsule Thyristor
Line Thyristor
SKT 491
Features
    

   
 
    

  
    
 !"" #
$% 
Typical Applications
&  
() )   *
 
() )  % *
$ 
() )   *
+  
) )  ##+, - ."" #/
+ 0 11 2314 56 0 "6.7 89
SKT
#+, #++,6 #&+, :+, 0 """ $ (;    *
# # :$# 0 .<" $ () !"= &= :0 !" >*
?"" ."" @: .< 3".A
<"" !"" @: .< 3"!A
1"" 4"" @: .< 3 4A
?"" ."" @: .< 3 .A
7"" B"" @: .< 3 BA
<"" !"" @: .< 3 !A
Symbol Conditions Values Units
:$# ) !"= :0 "" (!?* > 14 (.?4 * $
&4 ; C!3 !"= :0 .? >= D4 3 DB 14" 3 .?" $
4 ; C!3 !"9= :0 1? >= D4 3 DB 7B" 3 """ $
+, 4 ; C!3 !"= :0 .? >= 5  1?" $
:, :E 0 4? >= "  !""" $
:E 0 4? >= "  7""" $
F :E 0 4? >= !61 ))) "  14"""" $F
:E 0 4? >= !61 ))) "  4.?""" $F
#::E 0 4? >= :0 ?"" $ ;) 46 #
#:(:* :E 0 4? > 6 #
::E 0 4? > "67 2
&&= +& :E 0 4? >= #+& 0 #++,= #&& 0 #&+, ;) ?" $
 :E 0 4? >= G0 $= G3 0 $3H H
 #&0 "6B7 I #&+, H
(3* :E 0 4? > ;) 4? $3H
(3* :E 0 4? > ;) """ #3H
J:E 0 4? > ?" ))) ?" H
:E 0 4? >= %) 3 ;) ?" 3 ?"" $
K:E 0 4? > +G0 11 L= %) 3 ;) "6? 3 4 $
#G: :E 0 4? >= )) ) 1 #
G: :E 0 4? >= )) ) 4?" $
#G& :E 0 4? >= )) ;) "64? #
G& :E 0 4? >= )) ;) " $
+(E* )= & "6".? @35
+(E* ) !"= & 3  "6".7 3 "6 @35
+(E* ) 4"= & 3  "6"?. 3 "6 1 @35
+(* & 3  "6" 4 3 "6"4. @35
:E ." ))) M 4? >
: ." ))) M 1" >
# #N
9   ?64 ))) ! O
3F
;) "?
 D
SKT 491
1 07-08-2003 JEL © by SEMIKRON
Fig. 1L Power dissipation vs. on-state current Fig. 1R Power dissipation vs. ambient temperature
Fig. 2L Rated on-state current vs. case temperature Fig. 2R Rated on-state current vs. case temperature
Fig. 3 Recovered charge vs. current decrease Fig. 4 Transient thermal impedance vs. time
SKT 491
2 07-08-2003 JEL © by SEMIKRON
Fig. 5 Thermal resistance vs. conduction angle Fig. 6 On-state characteristics
Fig. 7 Power dissipation vs. on-state current Fig. 8 Surge overload current vs. time
SKT 491
3 07-08-2003 JEL © by SEMIKRON
Fig. 9 Gate trigger characteristics
Dimensions in mm
 D (PA&A/ :4""$D*
This technical information specifies semiconductor devices but promises no characteristics. No warranty or guarantee
expressed or implied is made regarding delivery, performance or suitability.
SKT 491
4 07-08-2003 JEL © by SEMIKRON