Thyristors
20 Amps
/ 25 Amp
Standard
20
High
JunctionSCRs
Temperature SCRs
SJxx20xx Series
RoHS
Description
This SJxx20xx high temperature SCR series is ideal for
uni-directional switch applications such as phase control
in heating, motor speed controls, converters/rectifiers and
inrush current controllers.
These SCRs have a low gate current trigger level of 6
mA,10 mA or 35 mA maximum at approximately 1.5 V.
Features & Benefits
• Halogen free and RoHS
compliant
• Surge capability up to
300A at 60 Hz half cycle
• 150 °C maximum junction
temperature
Schematic Symbol
Applications
A
K
G
Typical applications include AC Generator (ACG) rectifiers,
battery voltage regulators, generic converters and inrush
current controller in various AC to DC applications.
Additional applications include controls for power tools,
home/brown good and white goods appliances.
Isolated packages offered for ease of heat sinking.
Agency Approval
Main Features
Agency
Symbol
Value
Unit
20
A
VDRM / VRRM
400 or 600
V
IGT
6, 10, to 35
mA
Agency File Number
L Packages: E71639
IT(RMS)
Absolute Maximum Ratings — 20A SCR
Symbol
Parameter
Test Conditions
Value
Unit
VDSM/VRSM
Peak non-repetitive blocking voltage
Pw=100 μs
VDRM/VRRM+100
V
SJxx20Lx
IT(RMS)
RMS on-state current
TC = 105 °C
SJxx20Rx
SJxx20Nx
TC = 130 °C
20
A
SJxx20Lx
IT(AV)
Average on-state current
TC = 105 °C
SJxx20Rx
SJxx20Nx
TC = 130 °C
12.8
A
single half cycle; f = 50Hz;
TJ (initial) = 25 °C
225
single half cycle; f = 60Hz;
TJ (initial) = 25 °C
300
A
ITSM
Peak non-repetitive surge current
I 2t
I2t Value for fusing
tp = 8.3 ms
374
A2s
di/dt
Critical rate of rise of on-state current
f = 60Hz ; TJ = 150 °C
125
A/μs
IGM
Peak gate current
TJ = 150 °C
3
A
PG(AV)
Average gate power dissipation
TJ = 150 °C
0.6
W
Tstg
Storage temperature range
-40 to 150
°C
TJ
Operating junction temperature range
-40 to 150
°C
Note: xx=voltage/10, x=sensitivity
SJxx20xx
Sxx20x &Series
Sxx25x Series
©2018 Littelfuse, Inc
Specifications are subject to change without notice.
Revised: 07/25/18
Thyristors
20 Amps
/ 25 Amp
Standard
20
High
JunctionSCRs
Temperature SCRs
Electrical Characteristics (TJ = 25°C, unless otherwise specified)
Symbol
Test Conditions
IGT
VD = 12V; RL = 60 Ω
VGT
SJxx20x
SJxx20x1
SJxx20x2
MIN.
8
2
5
MAX.
35
6
10
MAX.
VD = 67%VDRM; gate open; TJ = 125°C
dv/dt
MIN.
VD = 67% VDRM; gate open; TJ = 150°C
Unit
mA
1.5
1.5
1.5
800
70
500
400
-
200
0.2
0.2
V
VGD
VD = VDRM RL = 3.3 kΩ TJ = 110°C
MIN.
0.2
V
V/μs
IH
IT = 200mA (initial)
MAX.
75
15
35
mA
tq
IT=2A; tp=50µs; dv/dt=5V/µs; di/dt=-30A/µs
MAX.
40
40
40
μs
tgt
IG = 2 x IGT PW = 15µs IT = 40A
TYP.
2
2
2
μs
Note: xx=voltage/10, x=package
Static Characteristics
Symbol
Test Conditions
IT = 40A; tp = 380μs
VTM
Value
Unit
MAX.
1.6
V
MAX.
1000
TJ = 25°C
IDRM / IRRM
VDRM / VRRM
10
TJ = 125°C
TJ = 150°C
μA
3000
Thermal Resistances
Symbol
Parameter
Value
Junction to case (AC)
Rθ(JC)
SJxx20Rx
SJxx20Nx
1.0
SJxx20Lx
2.4
Unit
°C/W
Note: xx=voltage/10, x=sensitivity
Figure 1: Normalized DC Gate Trigger Current
vs. Junction Temperature
Figure 2: N
ormalized DC Gate Trigger Voltage
vs. Junction Temperature
1.4
2.0
Ratio of IH / IH (TJ = 25ºC)
1.2
Ratio of IGT / IGT (TJ = 25ºC)
1.6
1.2
0.8
0.4
1.0
0.8
0.6
0.4
0.2
0.0
-40
-15
10
35
60
85
Junction Temperature (TJ) – (ºC)
SJxx20xx Series
Sxx20x & Sxx25x Series
110
135
150
0.0
-40
-15
10
35
60
85
110
135
150
Junction Temperature (TJ) – (ºC)
©2018 Littelfuse, Inc
Specifications are subject to change without notice.
Revised: 07/25/18
Thyristors
20 Amps
/ 25 Amp
Standard
20
High
JunctionSCRs
Temperature SCRs
Figure 3: Normalized DC Holding Current
vs. Junction Temperature
Figure 4: O
n-State Current vs. On-State
Voltage (Typical)
60
Intantaneous On-state Current (iT) – Amps
Ratio of IH / IH (TJ = 25ºC)
2.0
1.6
1.2
0.8
0.4
0.0
-40
-15
10
35
60
85
110
135
50
40
30
20
10
0
150
0.6
0.7
0.8
15
12
9
6
3
4
8
1.1
1.2
1.3
1.4
1.5
1.6
12
16
20
150
140
Maximum Allowable case Temperature
Average On-State Power Dissipation
[PD(AV)] - (Watts)
18
0
1.0
Figure 6: M
aximum Allowable Case Temperature
vs. RMS On-State Current
(TC) - ºC)
Figure 5: Power Dissipation (Typical)
vs. RMS On-State Current
0
0.9
Instantaneous On-state Voltage (vT) – Volts
Junction Temperature (TJ) – (ºC)
SJxx20Rx
SJxx20Nx
130
SJxx20Lx
120
110
100
90
80
70
0
RMS On-State Current [IT(RMS)] - (Amps)
5
10
15
20
RMS On - State Current[I T(RMS) ]Amps
Figure 8: Peak Capacitor Discharge Current
150
1000
SJxx20Rx
SJxx20Nx
140
Peak Discharge Current (ITM) - Amps
Maximum Allowable case Temperature
(TC) - ºC)
Figure 7: Maximum Allowable Case Temperature
vs. Average On-State Current
130
SJxx20Lx
120
110
100
90
80
100
ITRM
tW
70
0
2
4
6
8
10
Average On - State Current[I T(AVE)]Amps
SJxx20xx Series
Sxx20x & Sxx25x Series
12
14
10
0.5
1.0
10.0
50.0
Pulse Current Duration (tW) - ms
©2018 Littelfuse, Inc
Specifications are subject to change without notice.
Revised: 07/25/18
Thyristors
20 Amps
/ 25 Amp
Standard
20
High
JunctionSCRs
Temperature SCRs
Figure 9: Peak Capacitor Discharge Current Derating
1.2
Normalized Peak Current
1.0
0.8
0.6
0.4
0.2
0.0
0
25
50
75
100
125
150
Case Temperature (TC) - ºC
Figure 10: 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. G
ate control may be lost during and immediately
following surge current interval.
2. O
verload 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
SJxx20xx Series
Sxx20x & Sxx25x Series
©2018 Littelfuse, Inc
Specifications are subject to change without notice.
Revised: 07/25/18
Thyristors
20 Amps
/ 25 Amp
Standard
20
High
JunctionSCRs
Temperature SCRs
Soldering Parameters
Pb – Free assembly
Pre Heat
- 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)
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
Physical Specifications
Terminal Finish
Ramp-up
TL
tL
TS(max)
Preheat
TS(min)
100% Matte Tin-plated
25
Ramp-do
Ramp-down
tS
217°C
60 – 150 seconds
- Time (tL)
tP
TP
Temperature
Reflow Condition
time to peak temperature
Time
Environmental Specifications
Test
Body Material
UL Recognized compound meeting
flammability rating V-0.
AC Blocking
Lead Material
Copper Alloy
Temperature Cycling
Temperature/
Humidity
Specifications and Conditions
MIL-STD-750, M-1040, Cond A Applied
Peak AC voltage @ 150°C for 1008 hours
MIL-STD-750, M-1051,
100 cycles; -55°C to +150°C;
15-min dwell-time
EIA / JEDEC, JESD22-A101
1008 hours; 160V - DC: 85°C;
85% rel humidity
MIL-STD-750, M-1031,
1008 hours; 150°C
Design Considerations
High Temp Storage
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.
Low-Temp Storage
1008 hours; -40°C
Resistance to
Solder Heat
MIL-STD-750 Method 2031
Solderability
ANSI/J-STD-002, category 3, Test A
Lead Bend
MIL-STD-750, M-2036 Cond E
Moisture Sensitivity
Level
Level 1, JEDEC-J-STD-020D
SJxx20xx Series
Sxx20x & Sxx25x Series
©2018 Littelfuse, Inc
Specifications are subject to change without notice.
Revised: 07/25/18
Thyristors
20 Amps
/ 25 Amp
Standard
20
High
JunctionSCRs
Temperature SCRs
Dimensions — TO-220AB (R-Package) — Non-Isolated Mounting Tab Common with Center Lead
TC MEASURING POINT
AREA (REF.) 0.17 IN2
O
A
E
Dimension
8.13
.320
P
ANODE
A
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 GATE
K
N
Note: Maximum torque to
be applied to mounting tab
is 8 in-lbs. (0.904 Nm).
M
J
Inches
Millimeters
Min
Max
Min
Max
0.380
0.420
9.65
10.67
B
0.105
0.115
2.67
2.92
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
Dimensions — TO-220AB (L-Package) — Isolated Mounting Tab
TC MEASURING POINT
O
A
E
P
AREA (REF.) 0.17 IN2
Dimension
8.13
.320
A
B
C
13.36
.526
D
7.01
.276
F
R
G
L
H
CATHODE
ANODE GATE
K
J
SJxx20xx Series
Sxx20x & Sxx25x Series
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
B
0.105
0.115
2.67
2.92
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
©2018 Littelfuse, Inc
Specifications are subject to change without notice.
Revised: 07/25/18
Thyristors
20 Amps
/ 25 Amp
Standard
20
High
JunctionSCRs
Temperature SCRs
Dimensions –TO- 263AB (N-package) — D2-Pak Surface Mount
TC MEASURING POINT
B
AREA: 0.11 in 2
C
V
Dimension
E
ANODE
A
B
C
D
E
F
G
H
J
K
S
V
U
W
8.41
.331
7.01
.276
A
S
W
U
K
GATE
CATHODE
G
J
8.13
.320
H
D
F
11.68
.460
2.16
.085
7.01
.276
7.01
.276
16.89
.665
8.89
.350
1.40
.055
Inches
Millimeters
Min
Max
Min
Max
0.360
0.380
0.178
0.025
0.045
0.060
0.095
0.092
0.018
0.090
0.590
0.035
0.002
0.040
0.370
0.420
0.188
0.035
0.060
0.075
0.105
0.102
0.024
0.110
0.625
0.045
0.010
0.070
9.14
9.65
4.52
0.64
1.14
1.52
2.41
2.34
0.46
2.29
14.99
0.89
0.05
1.016
9.40
10.67
4.78
0.89
1.52
1.91
2.67
2.59
0.61
2.79
15.88
1.14
0.25
1.78
3.81
.150
2.03
.080
6.60
.260
Product Selector
Part Number
Voltage
Gate Sensitivity
Type
Package
X
35mA
Standard SCR
TO-220L
X
X
35mA
Standard SCR
TO-220R
X
X
35mA
Standard SCR
TO-263
400V
600V
SJxx20L
X
SJxx20R
SJxx20N
SJxx20L1
X
X
6mA
Standard SCR
TO-220L
SJxx20R1
X
X
6mA
Standard SCR
TO-220R
SJxx20N1
X
X
6mA
Standard SCR
TO-263
SJxx20L2
X
X
10mA
Standard SCR
TO-220L
SJxx20R2
X
X
10mA
Standard SCR
TO-220R
SJxx20N2
X
X
10mA
Standard SCR
TO-263
Note: xx = Voltage/10
Packing Options
Part Number
Marking
Weight
Packing Mode
Base Quantity
SJxx20LxTP
SJxx20Lx
2.2g
Tube
500 (50 per tube)
SJxx20RxTP
SJxx20Rx
2.2g
Tube
500 (50 per tube)
SJxx20NxTP
SJxx20Nx
1.6g
Tube
500 (50 per tube)
SJxx20NxRP
SJxx20Nx
1.6g
Embossed Carrier
500
Note: xx=voltage/10, x=sensitivity
SJxx20xx Series
Sxx20x & Sxx25x Series
©2018 Littelfuse, Inc
Specifications are subject to change without notice.
Revised: 07/25/18
Thyristors
20 Amps
/ 25 Amp
Standard
20
High
JunctionSCRs
Temperature SCRs
TO-263 Embossed Carrier Reel Pack (RP) Specifications
Meets all EIA-481-2 Standards
0.63
(16.0)
0.157
(4.0)
Gate
0.059
DIA
(1.5)
0.945
(24.0)
0.827
(21.0)
Cathode
*
* Cover tape
Anode
12.99
(330.0)
0.512 (13.0) Arbor
Hole Dia.
Dimensions
are in inches
(and millimeters).
1.01
(25.7)
Direction of Feed
Part Numbering System
Part Marking System
SJ 60 20 L 1 TP
COMPONENT TYPE
SJ: high temperature SCR
VOLTAGE RATING
40: 400V
60: 600V
CURRENT RATING
20: 20A
TO-220 AB - (L and R Package)
TO-263 AB - (N Package)
PACKING TYPE
TP: Tube Pack
RP: Reel Pack
SENSITIVITY & TYPE
[blank]: 35mA
1: 6mA
2: 10mA
PACKAGE TYPE
L: TO-220 Isolated
R: TO-220 Non-Isolated
N: TO-263 (D 2-Pak)
SJ6020L1
YM
®
Date Code Marking
Y:Year Code
M: Month Code
XXX: Lot Trace Code
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 http://www.littelfuse.com/disclaimer-electronics.
SJxx20xx Series
Sxx20x & Sxx25x Series
©2018 Littelfuse, Inc
Specifications are subject to change without notice.
Revised: 07/25/18
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