Littelfuse Sxx35x Series - Manual (Page 3)

307
Revised: 09/23/13
©2013 Littelfuse, Inc
Specifications are subject to change without notice.
Teccor ® brand Thyristors
35 Amp Standard SCRs
Sxx35x Series
Figure 1: Normalized DC Gate Trigger Current
vs. Junction Temperature
Figure 2: Normalized DC Gate Trigger Voltage
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)
R
a
ti
o of
I GT
/ I
GT
(T
J
= 2
5
°C
)
Figure 3: Normalized DC Holding Current
vs. Junction Temperature
Figure 4: On-State Current vs. On-State
Voltage (Typical)
125
0.0
0.5
1.0
1.5
2.0
-40 -15 10 35 60 85 110
Junction Temperature (T
J
) -- (°C)
R
a
ti
o of
V
GT
/ V
GT
(T
J
= 2
5
°C
)
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
= 2
5
°C)
T
J
= 25°C
0
20
40
60
80
100
120
0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6
Instantaneous On-state Voltage (v
T
) – Volts
In
stan
tan
e
o
u
s O
n
-state C
u
rr
e
n
t
(i T
) –
Am
p
s
Figure 5: Power Dissipation (Typical)
vs. RMS On-State Current
Figure 6: Maximum Allowable Case Temperature
vs. RMS On-State Current
0
5
10
15
20
25
30
0 5 10 15 20 25 30 35
RMS On-State Current [I
T(RMS)
] - (Amps)
Av
e
ra
g
e
O
n
-S
tate
P
o
wer D
is
s
ip
a
ti
o
n
[P
D(
AV
)
] - (Watts
)
80
85
90
95
100
105
110
115
120
125
130
0 5 10 15 20 25 30 35 40
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 180°
RMS On-State Current [I
T(RMS)
] - Amps
M
axi
m
u
m
A
ll
o
w
a
b
le C
ase
T
e
m
p
er
at
u
re (
T C
) - °
C