Teccor, Brand thyristors, High energy bidirectional sidacs – Littelfuse Kxxx0yH Series User Manual
Page 3: Vs. junction temperature
3
Revised: 12/26/13
©2013 Littelfuse, Inc
Specifications are subject to change without notice.
Teccor
®
brand Thyristors
High Energy Bidirectional SIDACs
Kxxx0yH Series
Figure 7: Normalized DC Holding Current
vs. Junction Temperature
125
0.0
0.5
1.0
1.5
2.0
-40
-15
10
35
60
85
110
Junction Temperature (T
J
) -- °C
Ratio of I
H
/ I
H
(T
J
= 25°C)
80
90
100
110
120
130
0.0
0.2
0.4
0.6
0.8
1.0
1.2
CURRENT WAVEFORM: Sinusoidal - 60Hz
LOAD: Resistive or Inductive
Kxxx0GH
Kxxx0SH
Kxxx0EH
Maximum
All
owa
ble Lead/Case
Temper
at
ur
e (T
C
) - °C
RMS On-State Current [I
T(RMS)
] - Amps
20
40
60
80
100
120
140
0.0
0.2
0.4
0.6
0.8
1.0
CURRENT WAVEFORM: Sinusoidal - 60Hz
LOAD: Resistive or Inductive
FREE AIR RATING
Kxxx0GH
Kxxx0SH
Kxxx0EH
Maximum
All
ow
able
Ambient
Temper
at
ur
e (T
A
) - °C
RMS On-State Current [I
T(RMS)
] - Amps
Figure 9: Maximum Allowable Ambient Temperature
vs. RMS On-State Current
Figure 8: Maximum Allowable Case Temperature
vs. RMS On-State Current
1
10
20
30
40
50
60
70
80
90
100
110
120
130
Repetitiv
e P
eak Br
eak
ove
r
Cur
rent (I
BO
) Multiplier
Junction Temperature (T
J
) -- °C
Figure 10: Normalized Repetitive Peak Breakover
Current (I
BO
) vs. Junction Temperature
100-250 V ac
60 Hz
Scope
Push to test
S1
Switch to test
in each direction
100
Ω
1%
Device
Under
Test
S1
Scope Indication
Trace Stops
I
H
I
PK
Figure 11: Dynamic Holding Current Test
Circuit for SIDACs
Figure 12: Basic SIDAC Circuit
Load
100-250 V ac
60 Hz
I
H
V
BO
120-145
˚
Conduction
Angle
I
H
I
H
Load Current
V
BO
V
BO