Teccor® brandThyristors
High Energy Unidirectional SIDACs
Figure 2: On-state Current vs. On-state
Voltage (Typical)
Figure 1:V-I Characteristics
+I
9
8
7
6
5
4
3
2
1
0
IT
(VBO - VS)
=
IH
RS
(IS - IBO
)
IS
IBO
IDRM
-V
+V
VBO
VS
VT
VDRM
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
Instantaneous On-stateVoltage (vT) –Volts
-I
Figure 3: Power Dissipation vs. On-state Current
(Typical)
Figure 4: Repetitive Peak On-state Current (ITRM)
vs. PulseWidth atVarious Frequencies
1.2
1.0
0.8
0.6
1000
100
10
di/dt Limit Line
ITM
tO
1/f
1 kHz
5 Hz
60 Hz
5 kHz
0.4
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE:
0.2
0.0
See basic SIDAC circuit in Figure 12
1
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1
10
100
1000
RMS On-State Current [IT(RMS)] - Amps
Pulse BaseWidth (tO) - us
Figure 5: Surge Peak On-state Current
vs. Number of Cycles
Figureꢀ6:ꢀN
ormalizedꢀVBO Change
vs. JunctionTemperature
10%
8%
100
SUPPLY FREQUENCY: 60 Hz Sinusoidal
LOAD: Resistive
RMS ON-STATE CURRENT: ITRMS Maximum Rated
Value at Specified Junction Temperature
6%
4%
2%
10
0%
-2%
-4%
-6%
-8%
Notes:
1) Blocking capability may be lost during
and immediately following surge
current interval.
2) Overload may not be repeated until
junction temperature has returned
to steady-state rated value.
1
-40
-20
0
20
40
60
80
100
120
140
1
10
100
1000
JunctionTemperature (TJ) -- °C
Surge Current Duration -- Full Cycles
© 2016 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 03/25/16