Capsule Thyristor
Line Thyristor
SKT 491
Features
!"" #
$%
Typical Applications*
&
() ) *
() ) % *
$
() ) *
+
) ) ##+, - ."" #/
+ 0 11 2314 56 0 "6.7 89
SKT
#+, #++,6 #&+, :+, 0 """ $ (; *
# # :$# 0 .<" $ () !"= &= :0 !" >*
?"" ."" @: .< 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 #&+, ;) B" $
: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? > 6 ?" ))) ?" H
:E 0 4? >= %) 3 ;) ?" 3 ?"" $
K:E 0 4? >= +G0 11 L= %) 3 ;) ?"" 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
3F
;) "?
D
SKT 491 THYRISTOR BRIDGE,SCR,BRIDGE
1 16-02-2009 MAY © by SEMIKRON
http://store.iiic.cc/
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
RECTIFIER,DIODE,THYRISTOR,MODULE
2 16-02-2009 MAY © by SEMIKRON
http://store.iiic.cc/
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 THYRISTOR BRIDGE,SCR,BRIDGE
3 16-02-2009 MAY © by SEMIKRON
http://store.iiic.cc/
Fig. 9 Gate trigger characteristics
Dimensions in mm
D (PA&A/ :4""$D*
@3G /
&O)/11<" 4?"
( 4 *
%
* The specifications of our components may not be considered as an assurance of component characteristics.
Components have to be tested for the respective application. Adjustments may be necessary. The use of SEMIKRON
RECTIFIER,DIODE,THYRISTOR,MODULE
4 16-02-2009 MAY © by SEMIKRON
http://store.iiic.cc/
products in life support appliances and systems is subject to prior specification and written approval by SEMIKRON. We
therefore strongly recommend prior consultation of our personal.
SKT 491 THYRISTOR BRIDGE,SCR,BRIDGE
5 16-02-2009 MAY © by SEMIKRON
http://store.iiic.cc/
