Teccor
®
brand Thyristors
40 Amp Standard SCRs
Sxx40x Series
Description
Excellent unidirectional switches for phase control
applications such as heating and motor speed controls.
Standard phase control SCRs are triggered with few
milliamperes of current at less than 1.5V potential.
Features & Benefits
to 1000 V
junctions
520 A
Main Features
Symbol
I
T(RMS)
V
DRM
/ V
RRM
I
GT
Value
40
400 to 1000
40
Unit
A
V
mA
Applications
Typical applications are AC solid-state switches, industrial
power tools, exercise equipment, white goods and
commercial appliances.
Schematic Symbol
A
K
G
Absolute Maximum Ratings
Symbol
I
T(RMS)
I
T(AV)
Parameter
RMS on-state current
Average on-state current
Test Conditions
T
C
= 100°C
T
C
= 100°C
single half cycle; f = 50Hz;
T
J
(initial) = 25°C
single half cycle; f = 60Hz;
T
J
(initial) = 25°C
t
p
= 8.3 ms
f = 60Hz ; T
J
= 125°C
T
J
= 125°C
T
J
= 125°C
Value
40
25.0
430
A
520
1122
175
3.5
0.8
-40 to 150
-40 to 125
A
2
s
A/μs
A
W
°C
°C
Unit
A
A
I
TSM
Peak non-repetitive surge current
I
2
t
di/dt
I
GM
P
G(AV)
T
stg
T
J
I
2
t Value for fusing
Critical rate of rise of on-state current
Peak gate current
Average gate power dissipation
Storage temperature range
Operating junction temperature range
Sxx40x Series
313
©2013 Littelfuse, Inc
Specifications are subject to change without notice.
Revised: 09/23/13
Teccor
®
brand Thyristors
40 Amp Standard SCRs
Electrical Characteristics
(T
J
= 25°C, unless otherwise specified)
Symbol
I
GT
V
GT
400V
V
D
= V
DRM
; gate open; T
J
= 100°C
dv/dt
600V
800V
1000V
400V
V
D
= V
DRM
; gate open; T
J
= 125°C
600V
800V
V
GD
I
H
t
q
t
gt
V
D
= V
DRM
; R
L
= 3.3 k:; T
J
= 125°C
I
T
= 400mA (initial)
(1)
I
G
= 2 x I
GT
; PW = 15μs; I
T
= 80A
MIN.
MAX.
MAX.
TYP
.
MIN.
V
D
= 12V; R
L
= 30
:
Test Conditions
MAX.
MIN.
MAX.
Value
40
5
1.5
650
600
500
250
550
500
475
0.2
60
35
2.5
V
mA
μs
μs
V/μs
Unit
mA
V
Note :
(1) I
T
=2A; t
p
=50μs; dv/dt=5V/μs; di/dt=-30A/μs
Static Characteristics
Symbol
V
TM
Test Conditions
I
T
= 80A; t
p
= 380μs
MAX.
Value
1.8
10
T
J
= 25°C
800 V
1000 V
I
DRM
/ I
RRM
V
DRM
/ V
RRM
MAX.
20
30
1000
T
J
= 100°C
800V
1000V
T
J
= 125°C
1500
5000
2000
800V
3000
μA
Unit
V
Thermal Resistances
Symbol
R
T(J-C)
R
T(J-A)
Note: xx = voltage
Parameter
Junction to case (AC)
Junction to ambient
Sxx40R /
Sxx40N
Sxx40R
Value
0.6
40
Unit
°C/W
°C/W
Sxx40x Series
314
©2013 Littelfuse, Inc
Specifications are subject to change without notice.
Revised: 09/23/13
Teccor
®
brand Thyristors
40 Amp Standard SCRs
Figure 1: Normalized DC Gate Trigger Current
vs. Junction Temperature
2.0
Figure 2: Normalized DC Gate Trigger Voltage
vs. Junction Temperature
2.0
Ratio of I
GT
/ I
GT
(T
J
= 25°C)
1.5
Ratio of V
GT
/ V
GT
(T
J
= 25°C)
1.5
1.0
1.0
0.5
0.5
0.0
-40
-15
10
35
60
85
110
125
0.0
-40
-15
10
35
60
85
110
125
Junction Temperature (T
J
)-- (°C)
Junction Temperature (T
J
) --(°C)
Figure 3: Normalized DC Holding Current
vs. Junction Temperature
2.0
Figure 4: On-State Current vs. On-State
Voltage (Typical)
120
T
J
= 25°C
100
Ratio of I
H
/ I
H
(T
J
= 25°C)
1.5
Instantaneous On-state
Current (i
T
) – Amps
-40
-15
10
35
60
85
110
125
80
1.0
60
40
0.5
20
0.0
0
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.6
Junction Temperature (T
J
) -- (°C)
Instantaneous On-state Voltage (v
T
) – Volts
Figure 5: Power Dissipation (Typical)
vs. RMS On-State Current
40
Figure 6: Maximum Allowable Case Temperature
vs. RMS On-State Current
130
125
Average On-State Power Dissipation
[P
D(AV)
] - (Watts)
35
120
30
25
20
15
10
5
0
0
5
10
15
20
25
30
35
40
70
0
5
10
15
20
25
30
35
40
45
50
Maximum Allowable
Case Temperature (T
C
)- °C
115
110
105
100
95
90
85
80
75
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 180°
RMS On-State Current [I
T(RMS)
] - (Amps)
RMS On-State Current [I
T(RMS)
] - Amps
Sxx40x Series
315
©2013 Littelfuse, Inc
Specifications are subject to change without notice.
Revised: 09/23/13
Teccor
®
brand Thyristors
40 Amp Standard SCRs
Figure 7: Maximum Allowable Case Temperature
vs. Average On-State Current
130
125
Figure 8: Maximum Allowable Ambient Temperature
vs. RMS On-State Current
120
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 180°
FREE AIR RATING
Maximum Allowable
Case Temperature (T
C
) - °C
120
115
110
105
100
95
90
85
80
0
5
10
15
20
25
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 180°
Maximum Allowable Ambient
Temperature (T
A
) - °C
100
80
60
40
20
0
0.0
0.5
1.0
1.5
2.0
2.5
Average On-State Current [I
T(AVE)
] - Amps
RMS On-State Current [I
T(RMS)
] - Amps
Figure 9: Maximum Allowable Ambient Temperature vs. Average On-State Current
120
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 180°
FREE AIR RATING
Maximum Allowable
Ambient Temperature (Tc) - °C
100
80
60
40
20
0
0.0
0.5
1.0
1.5
Average On-State Current [I
T(AVE)
] - Amps
Figure 10: Peak Capacitor Discharge Current
10000
Figure 11: Peak Capacitor Discharge Current Derating
1.2
Peak Discharge Current (I
TM
) - Amps
1.0
Normalized Peak Current
t
W
0.8
1000
0.6
0.4
I
TRM
0.2
100
0.5
1.0
10.0
50.0
0.0
0
25
50
75
100
125
150
Pulse Current Duration (t
w
) - ms
Case Temperature (T
C
) - °C
Sxx40x Series
316
©2013 Littelfuse, Inc
Specifications are subject to change without notice.
Revised: 09/23/13
Teccor
®
brand Thyristors
40 Amp Standard SCRs
Figure 12: Surge Peak On-State Current vs. Number of Cycles
1000
Peak Surge (Non-repetitive)
On-state Current (I
TSM
) – Amps
SUPPLY FREQUENCY: 60 Hz Sinusoidal
LOAD: Resistive
RMS On-State Current: [I
T(RMS)
]: Maximum Rated
Value at Specified Case Temperature
Notes:
1. Gate control 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.
100
10
1
10
100
1000
Surge Current Duration -- Full Cycles
Soldering Parameters
Reflow Condition
T
P
Temperature
- Temperature Min (T
s(min)
)
Pre Heat
- Temperature Max (T
s(max)
)
- Time (min to max) (t
s
)
Average ramp up rate (Liquidus Temp)
(T
L
) to peak
T
S(max)
to T
L
- Ramp-up Rate
Reflow
- Temperature (T
L
) (Liquidus)
- Temperature (t
L
)
260
+0/-5
t
P
Ramp-up
150°C
200°C
T
L
T
S(max)
Preheat
t
L
Ramp-do
Ramp-down
5°C/second max
5°C/second max
217°C
T
S(min)
t
S
25
time to peak temperature
Time
Peak Temperature (T
P
)
Time within 5°C of actual peak
Temperature (t
p
)
Ramp-down Rate
Time 25°C to peak Temperature (T
P
)
Do not exceed
°C
5°C/second max
8 minutes Max.
280°C
Sxx40x Series
317
©2013 Littelfuse, Inc
Specifications are subject to change without notice.
Revised: 09/23/13
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