Thyristors
40 Amp Standard SCRs
Sxx40x Series
RoHS
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
• RoHS compliant
• Glass – passivated
junctions
Main Features
• Voltage capability up
to 1000 V
• Surge capability up to
520 A
Applications
Symbol
Value
Unit
IT(RMS)
40
A
VDRM / VRRM
400 to 1000
V
IGT
40
mA
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
Parameter
Test Conditions
Value
Unit
IT(RMS)
RMS on-state current
TC = 100°C
40
A
IT(AV)
Average on-state current
A
ITSM
Peak non-repetitive surge current
TC = 100°C
25.0
single half cycle; f = 50Hz;
TJ (initial) = 25°C
430
single half cycle; f = 60Hz;
TJ (initial) = 25°C
520
A
I2t
I2t Value for fusing
tp = 8.3 ms
1122
A2s
di/dt
Critical rate of rise of on-state current
f = 60Hz ; TJ = 125°C
175
A/μs
IGM
Peak gate current
TJ = 125°C
3.5
A
PG(AV)
Average gate power dissipation
TJ = 125°C
0.8
W
Tstg
Storage temperature range
-40 to 150
°C
TJ
Operating junction temperature range
-40 to 125
°C
© 2020 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/15/20
Thyristors
40 Amp Standard SCRs
Electrical Characteristics (TJ = 25°C, unless otherwise specified)
Symbol
Test Conditions
IGT
Value
VD = 12V; RL = 30 Ω
MAX.
40
MIN.
5
MAX.
VGT
VD = VDRM; gate open; TJ = 100°C
650
600V
600
1000V
VD = VDRM; gate open; TJ = 125°C
mA
1.5
400V
800V
dv/dt
Unit
V
500
250
MIN.
400V
550
600V
500
800V
V/μs
475
VGD
VD = VDRM; RL = 3.3 kΩ; TJ = 125°C
MIN.
0.2
V
IH
IT = 400mA (initial)
MAX.
60
mA
tq
(1)
MAX.
35
μs
tgt
IG = 2 x IGT; PW = 15µs; IT = 80A
TYP.
2.5
μs
Note :
1. IT=2A; tp=50µs; dv/dt=5V/µs; di/dt=-30A/µs
Static Characteristics
Symbol
Test Conditions
IT = 80A; tp = 380μs
VTM
TJ = 25°C
IDRM / IRRM
VDRM / VRRM
TJ = 100°C
TJ = 125°C
MAX.
Value
Unit
1.8
V
400 – 600V
10
800 V
20
1000 V
30
400 – 600V
1000
800V
MAX.
1500
1000V
5000
400 – 600V
2000
800V
3000
μA
Thermal Resistances
Symbol
Value
Unit
RƟ(JC)
Junction to case (AC)
Parameter
Sxx40R / Sxx40N
0.6
°C/W
RƟ(J-A)
Junction to ambient
Sxx40R
40
°C/W
© 2020 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/15/20
Thyristors
40 Amp Standard SCRs
Figure 1: Normalized DC Gate Trigger Current
vs. Junction Temperature
Figure 2: N
ormalized DC Gate Trigger Voltage
vs. Junction Temperature
2.0
Ratio of VGT / VGT (TJ = 25°C)
Ratio of IGT / IGT (TJ = 25°C)
2.0
1.5
1.0
0.5
1.5
1.0
0.5
0.0
0.0
-40
-15
10
35
60
85
110
-40
125
-15
10
35
60
85
110
125
Junction Temperature (TJ ) --(°C)
Junction Temperature (TJ)-- (°C)
Figure 3: Normalized DC Holding Current
vs. Junction Temperature
Figure 4: O
n-State Current vs. On-State
Voltage (Typical)
120
2.0
TJ = 25°C
1.5
Instantaneous On-state
Current (iT) – Amps
Ratio of IH / IH (TJ = 25°C)
100
1.0
0.5
80
60
40
20
0.0
-40
-15
10
35
60
85
110
0
125
0.7
0.8
Junction Temperature (T J) -- (°C)
Figure 5: Power Dissipation (Typical)
vs. RMS On-State Current
1.0
1.1
1.2
1.3
1.4
1.5
1.6
Figure 6: M
aximum Allowable Case Temperature
vs. RMS On-State Current
40
130
125
35
120
Maximum Allowable
Case Temperature (TC )- °C
Average On-State Power Dissipation
[PD(AV)] - (Watts)
0.9
Instantaneous On-state Voltage (vT) – Volts
30
25
20
15
10
115
110
105
100
95
90
85
80
5
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 180°
75
0
0
5
10
15
20
25
30
RMS On-State Current [IT(RMS)] - (Amps)
35
40
70
0
5
10
15
20
25
30
35
40
45
50
RMS On-State Current [IT(RMS)] - Amps
© 2020 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/15/20
Thyristors
40 Amp Standard SCRs
Figure 7: Maximum Allowable Case Temperature
vs. Average On-State Current
Figure 8: Maximum Allowable Ambient Temperature
vs. RMS On-State Current
130
120
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 180°
FREE AIR RATING
Maximum Allowable Ambient
Temperature (TA) - °C
Maximum Allowable
Case Temperature (TC) - °C
125
120
115
110
105
100
95
90
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 180°
85
100
80
60
40
20
0
80
0
5
10
15
20
25
0.0
0.5
1.0
1.5
2.0
2.5
RMS On-State Current [IT(RMS)] - Amps
Average On-State Current [IT(AVE)] - Amps
Figure 9: Maximum Allowable Ambient Temperature vs. Average On-State Current
Maximum Allowable
Ambient Temperature (Tc) - °C
120
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 180°
FREE AIR RATING
100
80
60
40
20
0
0.0
0.5
1.0
1.5
Average On-State Current [IT(AVE)] - Amps
Figure 10: Peak Capacitor Discharge Current
Figure 11: Peak Capacitor Discharge Current Derating
1.2
1.0
Normalized Peak Current
Peak Discharge Current (ITM) - Amps
10000
1000
ITRM
0.8
0.6
0.4
0.2
tW
100
0.0
0.5
1.0
10.0
Pulse Current Duration (tw) - ms
50.0
0
25
50
75
100
125
150
Case Temperature (TC) - °C
© 2020 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/15/20
Thyristors
40 Amp Standard SCRs
Figure 12: Surge Peak On-State Current vs. Number of Cycles
Peak Surge (Non-repetitive)
On-state Current (ITSM) – Amps
1000
Supply Frequency: 60 Hz Sinusoidal
Load: Resistive
RMS On-State Current: [IT(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
Pre Heat
Pb – Free assembly
- Temperature Min (Ts(min))
150°C
- Temperature Max (Ts(max))
200°C
- Time (min to max) (ts)
60 – 180 secs
Average ramp up rate (Liquidus Temp) (TL) to peak
5°C/second max
TS(max) to TL - Ramp-up Rate
5°C/second max
Reflow
- Temperature (TL) (Liquidus)
217°C
- Time (tL)
60 – 150 seconds
Peak Temperature (TP)
260+0/-5 °C
Time within 5°C of actual peak Temperature (tp)
20 – 40 seconds
Ramp-down Rate
5°C/second max
Time 25°C to peak Temperature (TP)
8 minutes Max.
Do not exceed
280°C
tP
TP
Temperature
Reflow Condition
Ramp-up
TL
tL
TS(max)
Preheat
TS(min)
25
Ramp-do
Ramp-down
tS
time to peak temperature
Time
© 2020 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/15/20
Thyristors
40 Amp Standard SCRs
Physical Specifications
Environmental Specifications
Terminal Finish
100% Matte Tin-plated
Body Material
UL recognized compound meeting flammability rating V-0.
Lead Material
Copper Alloy
Test
Specifications and Conditions
AC Blocking
Temperature Cycling
Design Considerations
Careful selection of the correct component for the
application’s operating parameters and environment will
go a long way toward extending the operating life of the
Thyristor. Good design practice should limit the maximum
continuous current through the main terminals to 75% of
the component rating. Other ways to ensure long life for
a power discrete semiconductor are proper heat sinking
and selection of voltage ratings for worst case conditions.
Overheating, overvoltage (including dv/dt), and surge
currents are the main killers of semiconductors. Correct
mounting, soldering, and forming of the leads also help
protect against component damage.
Temperature/Humidity
High Temp Storage
Low-Temp Storage
Resistance to
Solder Heat
Solderability
MIL-STD-750, M-1040, Cond A Applied Peak AC
voltage @ 125°C for 1008 hours
MIL-STD-750, M-1051,
100 cycles; -40°C to +150°C;
15-min dwell-time
EIA / JEDEC, JESD22-A101
1008 hours; 320V - DC: 85°C;
85% rel humidity
MIL-STD-750, M-1031,
1008 hours; 150°C
1008 hours; -40°C
MIL-STD-750 Method 2031
ANSI/J-STD-002, category 3, Test A
MIL-STD-750, M-2036 Cond E
Lead Bend
Dimensions — TO-220AB (R-Package) — Non-Isolated Mounting Tab Common with Center Lead
TC Measuring Point
Dimension
O
A
E
Area (REF.) 0.17 IN2
8.13
.320
P
A
Anode
B
C
13.36
.526
D
7.01
.276
NOTCH IN
GATE LEAD
TO ID.
NON-ISOLATED
TAB
F
R
G
L
H
Cathode
Anode
K
J
Gate
N
M
Note: Maximum torque to
be applied to mounting tab
is 8 in-lbs. (0.904 Nm).
Inches
Millimeters
Min
Max
Min
Max
0.380
0.420
9.65
10.67
2.92
B
0.105
0.115
2.67
C
0.230
0.250
5.84
6.35
D
0.590
0.620
14.99
15.75
E
0.142
0.147
3.61
3.73
F
0.110
0.130
2.79
3.30
G
0.540
0.575
13.72
14.61
H
0.025
0.035
0.64
0.89
J
0.195
0.205
4.95
5.21
K
0.095
0.105
2.41
2.67
L
0.060
0.075
1.52
1.91
M
0.085
0.095
2.16
2.41
N
0.018
0.024
0.46
0.61
O
0.178
0.188
4.52
4.78
P
0.045
0.060
1.14
1.52
R
0.038
0.048
0.97
1.22
© 2020 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/15/20
Thyristors
40 Amp Standard SCRs
Dimensions – TO- 263 (N-package) — D2-Pak Surface Mount
TC Measuring Point
B
Area: 0.11 in
C
V
2
Dimension
8.41
.331
Min
A
0.360
0.370
9.14
9.40
B
0.380
0.420
9.65
10.67
C
0.178
0.188
4.52
4.78
0.025
0.035
0.63
0.89
E
0.048
0.055
1.22
1.40
U
F
0.060
0.075
1.52
1.91
J
G
0.095
0.105
2.41
2.67
H
0.083
0.093
2.11
2.36
J
0.018
0.024
0.46
0.61
K
0.090
0.110
2.29
2.79
S
0.590
0.625
14.99
15.87
S
K
Gate
Cathode
G
8.13
.320
H
D
F
11.68
.460
2.16
.085
7.01
.276
Max
D
7.01
.276
A
W
Millimeters
Max
E
Anode
Inches
Min
7.01
.276
V
0.035
0.045
0.89
1.14
U
0.002
0.010
0.05
0.25
W
0.040
0.070
1.02
1.78
16.89
.665
8.89
.350
1.40
.055
3.81
.150
2.03
.080
6.60
.260
Part Numbering System
S 60 40 R
Device Type
S: SCR
Voltage Rating
40: 400V
60: 600V
80: 800V
K0: 1000V
Part Marking System
56
TO-220 AB - (R Package)
TO-263 AB - (N Package)
Lead Form Dimensions
xx: Lead Form Option
Sensitivity Type
[blank]: 40mA
S6040R
YM
®
Currenting Rating
40: 40A
Package Type
R: TO-220 (Non-isolated)
2 - Pak)
N: TO-263 (D
Date Code Marking
Y:Year Code
M: Month Code
XXX: Lot Trace Code
© 2020 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/15/20
Thyristors
40 Amp Standard SCRs
Product Selector
Part Number
Voltage
400V
600V
800V
Gate Sensitivity
1000V
Type
Package
Sxx40R
X
X
X
X
40mA
Standard SCR
TO-220R
Sxx40N
X
X
X
X
40mA
Standard SCR
TO-263
Note: xx = Voltage
Packing Options
Part Number
Marking
Weight
Packing Mode
Base Quantity
Sxx40RTP
Sxx40R
2.2g
Tube
1000 (50 per tube)
Sxx40NTP
Sxx40N
1.6g
Tube
1000 (50 per tube)
Sxx40NRP
Sxx40N
1.6g
Embossed Carrier
500
Note: xx = Voltage
Reel Pack (RP) for TO-263 Embossed Carrier Specifications
Meets all EIA-481-2 Standards
0.63
(16.0)
0.157
(4.0)
Gate
0.059
DI A
(1.5)
0.945
(24.0)
0.827
(21.0)
Cathode
*
* Co ver tape
Anode
0.512 (13.0) Arbor
Hole Dia.
12.99
(330.0)
Dimensions
are in inches
(and millimeters).
1.01
(25.7)
Direction of F eed
Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications. Littelfuse products are
not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at: www.littelfuse.com/disclaimer-electronics.
© 2020 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/15/20
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