SxX8xSx
Thyristor Datasheet
SxX8xSx Series
EV Series 0.8 A Sensitive SCRs
Product Description
This new component series offers high static dv/dt
and low turn off time (tq) sensitive SCR. It is
specifically designed for Ground Fault Circuit
Interrupter (GFCI) and Gas Ignition
applications. All SCRs junctions are glasspassivated to ensure long term reliability and
parametric stability.
Features
• Surge capability > 10 A
• Blocking voltage (VDRM / VRRM) capability up to
800 V
• High dv/dt noise immunity
• Improved turn-off time (tq) < 25 µsec
• Sensitive gate for direct microprocessor interface
• Through-hole and surface-mount packages
• RoHS compliant and Halogen-Free
Agency Approvals and Environmental
Environmental Approvals
Product Summary
Characteristic
Value
Unit
IT(RMS)
0.8
A
VDRM / VRRM
400, 600, or 800
V
IGT
5 to 200
µA
Applications
The SxX8xSx EV series is specifically designed for
Ground Fault Circuit Interrupter (GFCI) and gas
ignition applications.
Schematic Symbol
1
Specifications are subject to change without notice.
Read complete Disclaimer Notice at www.littelfuse.com/disclaimer-electronics.
© 2021 Littelfuse, Inc.
Revised: 6/11/2021
SxX8xSx
Thyristor Datasheet
1. Maximum Ratings...........................................................................................................................................3
2. Thermal Characteristics ..................................................................................................................................3
3. Electrical Characteristics (TJ = 25 °C unless otherwise specified) .................................................................3
4. Static Characteristics (TJ = 25 °C unless otherwise specified) .......................................................................3
5. Performance Curves .......................................................................................................................................4
6. Soldering Parameters .....................................................................................................................................7
7. Physical Specifications....................................................................................................................................7
8. Environmental Specifications..........................................................................................................................7
9. Design Considerations ....................................................................................................................................8
10. Package Dimensions ....................................................................................................................................9
11. Part Numbering and Marking ......................................................................................................................10
12. Product Selector .........................................................................................................................................11
13. Packing Options ..........................................................................................................................................11
14. Packing Specifications ................................................................................................................................11
2
Specifications are subject to change without notice.
Read complete Disclaimer Notice at www.littelfuse.com/disclaimer-electronics.
© 2021 Littelfuse, Inc.
Revised: 6/11/2021
SxX8xSx
Thyristor Datasheet
1. Maximum Ratings
Symbol
Characteristic
Conditions
IT(RMS)
RMS On-state Current (Full Sine Wave)
IT(AV)
Average On-state Current
ITSM
Non-repetitive Surge Peak On-state Current
(Single Cycle, TJ,Initial = 25 °C)
I2t
I2t Value for Fusing
TO-92
SOT-89
SOT-223
TO-92
SOT-89
SOT-223
TO-92
SOT-89
SOT-223
tp = 10 ms
tp = 8.3 ms
TO-92
SOT-89
SOT-223
Critical Rate of Rise of On-state Current
IG =10 mA
di/dt
IGM
Peak Gate Current
Value
Unit
0.8
A
0.51
A
TC = 55 °C
TC = 60 °C
TL = 60 °C
TC = 55 °C
TC = 60 °C
TL = 60 °C
f = 50 Hz
8
f = 60 Hz
10
f = 50 Hz
f = 60 Hz
0.32
0.41
A2s
TJ = 125 °C
50
A/µs
tp = 10 µs
TJ = 125 °C
1.0
A
A
PG(AV)
Average Gate Power Dissipation
-
TJ = 125 °C
0.1
W
TSTG
Storage Junction Temperature Range
-
-
-40 to 150
°C
Operating Junction Temperature Range
-
-
-40 to 125
°C
Value
Unit
TJ
2. Thermal Characteristics
Symbol
Characteristic
Rth(JC)
Thermal Resistance, junction-to-case (AC)
IT = 0.8 A(RMS)1
Rth(JA)
Thermal Resistance, junction-to-ambient
IT = 0.8 A(RMS)1
TO-92
SOT-223
SOT-89
TO-92
SOT-223
75
30
50
150
60
SOT-89
90
°C/W
°C/W
Note 1: 60 Hz AC resistive load condition, 100% conduction
3. Electrical Characteristics (T
J
Symbol
= 25 °C unless otherwise specified)
Description
Conditions
Min
IGT
DC Gate Trigger Current
VD = 6 V, RL = 10
0.5
VGT
DC Gate Trigger Voltage
VD = 6 V, RL = 10
-
VGRM
IH
Peak Reverse Gate Voltage
Holding Current
(dv/dt)s
Critical Rate-of-rise of
Off-stage Voltage
SxX8yS1
Typ Max
-
Min
5
1
0.8
-
SxX8yS2
Typ Max
-
Min
50
15
0.8
-
SxX8yS
Typ Max
-
Unit
200
µA
0.8
V
IRG = 10 µA
5
-
5
-
5
-
V
RGK
,
Initial current = 20 A
-
5
-
5
-
5
mA
75
-
75
-
75
-
V/µs
30
-
25
-
25
µs
-
-
-
-
-
µs
-
0.2
-
0.2
-
V
TJ = 125 °C, VD =VDRM/VRRM,
RGK
tq
Turn-off Time
tgt
Turn-on Time
IG = 10 mA, PW
TJ = 25 °C @ 600 V, RGK
VGD
Gate Non-trigger Voltage
VD = VDRM, RGK = 1
T
J
= 1.6 APK
-
2
= 125 °C
0.2
2
2
Note: x = voltage /100, y = package
4. Static Characteristics (T
J
Symbol
VTM
IDRM
= 25 °C unless otherwise specified)
Description
Conditions
Peak On-state Voltage
Off-state Current, Peak Repetitive
ITM = 1.6 Apk
Value
Unit
Min
Max
-
1.70
TJ = 25 °C @ VD = VDRM, RGK
-
3
TJ = 125 °C @ VD = VDRM, RGK
-
500
3
V
µA
Specifications are subject to change without notice.
Read complete Disclaimer Notice at www.littelfuse.com/disclaimer-electronics.
© 2021 Littelfuse, Inc.
Revised: 6/11/2021
SxX8xSx
Thyristor Datasheet
5. Performance Curves
Figure 2. Normalized DC Holding Current vs. Junction
Temperature
2.0
4.0
1.5
3.0
Ratio of
IH / IH (TJ = 25 °C)
Ratio of
IGT / IGT (TJ = 25 °C)
Figure 1. Normalized DC Gate Trigger Current for All Quadrants
vs. Junction Temperature
1.0
0.5
0.0
2.0
1.0
0.0
-55 -40 -25 -10
5
20
35
50
65
80
95 110 125
-55 -40 -25 -10
Junction Temperature, TJ (°C)
Figure 3. Normalized DC Gate Trigger Voltage vs. Junction
Temperature
Instantaneous On-state Current, IT (A)
Gate Trigger Voltage
VGT (V)
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
5
20
35
50
65
80
20
35
50
65
80
95 110 125
Figure 4. Typical On-state Current vs. On-state Voltage
1.0
-40 -25 -10
5
Junction Temperature, TJ (°C)
95 110 125
10
8
SxX8xS1
6
SxX8xS
4
SxX8xS2
2
0
0.7
Junction Temperature, TJ (°C)
1.1
1.5
1.9
2.3
2.7
3.1
3.5
Instantaneous On-state Voltage, VT (V)
4
Specifications are subject to change without notice.
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Revised: 6/11/2021
SxX8xSx
Thyristor Datasheet
Figure 6. Maximum Allowable Case Temperature vs. On-state
Current
0.8
Max Allowable Case Temperature, TC (°C)
Average On-state Power Dissipation,
PD(AV) (W)
Figure 5. Typical Power Dissipation vs. RMS On-state Current
0.7
Current Waveform: Sinusoidal
Load: REsistive or Inductive
Conduction Angle: 180°
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
130
120
110
100
TO-92
90
SOT-89 and SOT-223
80
Current Waveform: Sinusoidal
Load: Resistive or Inductive
Conduction Angle: 180°
Case Temperature: Measured as
shown on dimensional drawings
70
60
50
0.8
0
RMS On-state Current, IT(RMS) (A)
0.1
0.2
0.3
0.4
0.5
Figure 7. Typical DC Gate Trigger Current with RGK vs. Junction
Temperature for S6X8xS
0.8
100
RGK =
Trigger Current, IGT (mA)
RGK =
Trigger Current, IGT (mA)
0.7
Figure 8. Typical DC Gate Trigger Current with RGK vs. Junction
Temperature for S8X8xS
100
10
RGK =
RGK =
1
RGK =
0.1
10
RGK =
RGK =
1
RGK =
0.1
No RGK
No RGK
0.01
0.01
-40
-15
10
35
60
85
110
135
-40
-15
Junction Temperature, TJ (°C)
10
35
60
85
110
135
Junction Temperature, TJ (°C)
Figure 9. Typical DC Holding Current with RGK vs. Junction
Temperature for S6X8xS
Figure 10. Typical DC Holding Current with RGK vs. Junction
Temperature for S8X8xS
100
Holding Current, IH (mA)
1000
Holding Current, IH (mA)
0.6
RMS On-state Current, IT(RMS) (A)
100
RGK =
RGK =
10
RGK =
RGK =
1
RGK =
RGK =
10
RGK =
RGK =
1
No RGK
No RGK
0.1
0.1
-40
-15
10
35
60
85
110
135
-40
Junction Temperature, TJ (°C)
-15
10
35
60
85
110
135
Junction Temperature, TJ (°C)
5
Specifications are subject to change without notice.
Read complete Disclaimer Notice at www.littelfuse.com/disclaimer-electronics.
© 2021 Littelfuse, Inc.
Revised: 6/11/2021
SxX8xSx
Thyristor Datasheet
Figure 11. Typical DC Static dv/dt with RGK vs. Junction
Temperature for S6X8xS
Figure 12. Typical DC Static dv/dt with RGK vs. Junction
Temperature for S8X8xS
10000
10000
RGK =
Static dv/dt (V/µs)
Static dv/dt (V/µs)
RGK =
1000
RGK =
RGK =
100
RGK =
1000
RGK =
RGK =
RGK =
100
10
10
25
45
65
85
105
125
25
45
Junction Temperature, TJ (°C)
Figure 13. Typical DC Turn-off Time with RGK vs. Junction
Temperature for S6X8xS
85
105
125
Figure 14. Typical DC Turn-off Time with RGK vs. Junction
Temperature for S8X8xS
22
26
24
20
22
16
Turn-off Time, tq (µs)
RGK =
18
Turn-off Time, tq (µs)
65
Junction Temperature, TJ (°C)
RGK =
14
12
RGK =
10
8
RGK =
6
4
RGK =
20
RGK =
18
16
14
RGK =
12
10
RGK =
8
6
4
2
2
0
0
-40
-15
10
35
60
85
110
135
-40
-15
Junction Temperature, TJ (°C)
10
35
60
85
110
135
Junction Temperature, TJ (°C)
Peak Surge (Non-repetitive) On-state
Current, ITSM (A)
Figure 15. Surge Peak On-state Current vs. Number of Cycles
Notes
1. Gate control may be lost during and immediately
following surge current interval.
10
2. Overload may not be repeated until junction
temperature has returned to steady-state rated value.
0.8 A Components
Supply Frequency: 60 Hz Sinusoidal
Load: Resistive
RMS Onstate Current [IT,RMS]: Max rated value
at specific case temperature
1
1
10
100
1000
Surge Current Duration - Full Cycle
6
Specifications are subject to change without notice.
Read complete Disclaimer Notice at www.littelfuse.com/disclaimer-electronics.
© 2021 Littelfuse, Inc.
Revised: 6/11/2021
SxX8xSx
Thyristor Datasheet
Figure 16. Peak Repetitive Sinusoidal Pulse Current
.
Peak Discharge Current, ITM (A)
180
160
140
120
100
1 Hz
80
12 Hz
60
40
60 Hz
20
0
1
10
100
Pulse Current Duration, tw (µs)
6. Soldering Parameters
Parameter
Value
Reflow Condition
Pb-free Assembly
Temperature Min, TS(Min)
Pre-Heat
150 °C
Temperature Max, TS(Max)
200 °C
Time (Min to Max), ts
60 to 180 s
Average Ramp-up Rate Liquidus Temp., TL to peak
5 °C/s (Max)
TS(Max) to TL Ramp-up Rate
5 °C/s (Max)
Temperature, TL Liquidus
Reflow
217 °C
Time, tS
60 to 150 s
Peak Temperature, TP
260 °C (±5 °C)
Time within 5 °C of Actual Peak Temperature, tP
20 to 40 s
Ramp-down Rate
5 °C/s (Max)
Time 25 °C to Peak Temperature, TP
8 minutes (Max)
Do Not Exceed
7. Physical Specifications
Device Feature
280 °C
8. Environmental Specifications
Detail
Test
Terminal Finish
100% Matte Tin-plated
AC Blocking
Body Material
UL Recognized Compound meeting Flammability
Rating V-0
Temperature Cycling
Lead Material
Copper Alloy
Temperature/Humidity
7
Specifications and Conditions
MIL-STD-750, M-1040, Cond A Applied Peak
AC voltage @ 110°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% relative humidity
High-temp Storage
MIL-STD-750, M-1031, 1008 hours, 150°C
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
Specifications are subject to change without notice.
Read complete Disclaimer Notice at www.littelfuse.com/disclaimer-electronics.
© 2021 Littelfuse, Inc.
Revised: 6/11/2021
SxX8xSx
Thyristor Datasheet
9. Design Considerations
Careful selection of the correct component for the
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.
8
Specifications are subject to change without notice.
Read complete Disclaimer Notice at www.littelfuse.com/disclaimer-electronics.
© 2021 Littelfuse, Inc.
Revised: 6/11/2021
SxX8xSx
Thyristor Datasheet
10. Package Dimensions
TO-92
Dimension
Millimeters
Inches
Min
Max
Min
Max
4.450
5.200
0.175
0.205
B
4.320
5.330
0.170
0.210
C
12.700
-
0.500
-
D
3.430
-
0.135
-
E
3.180
4.190
0.125
0.165
F
2.040
2.660
0.080
0.105
G
0.407
0.533
0.016
0.021
H
1.150
1.390
0.045
0.055
I
2.420
2.660
0.095
0.105
J
0.380
0.500
0.015
0.020
A
SOT-223
Dimension
*Dimensions in millimeters (inches)
Millimeters
Inches
Min
Typ
Max
Min
Typ
Max
A
6.30
6.50
6.70
0.248
0.256
0.264
B
3.30
3.50
3.70
0.130
0.138
0.146
C
-
-
1.80
-
-
0.071
D
0.02
-
0.10
0.001
-
0.004
E
2.90
3.00
3.15
0.114
0.118
0.124
F
0.60
0.70
0.85
0.024
0.027
0.034
G
-
2.30
-
-
0.090
-
H
-
4.60
-
-
0.181
-
I
6.70
7.00
7.30
0.264
0.276
0.287
J
0.24
0.26
0.35
0.009
0.010
0.014
K
9
10° MAX
Specifications are subject to change without notice.
Read complete Disclaimer Notice at www.littelfuse.com/disclaimer-electronics.
© 2021 Littelfuse, Inc.
Revised: 6/11/2021
SxX8xSx
Thyristor Datasheet
SOT-89
Dimension
*Dimensions in millimeters (inches)
Millimeters
Inches
Min
Typ
Max
Min
Typ
Max
A
4.40
-
4.60
0.173
-
0.181
B
2.29
-
2.60
0.090
-
0.102
C
1.40
-
1.60
0.055
-
0.063
D
3.94
-
4.25
0.155
-
0.167
E
0.81
-
1.20
0.032
-
0.047
-
F
-
1.50
-
-
0.059
G
-
3
-
-
0.118
-
H
0.35
-
0.44
0.014
-
0.017
I
0.36
-
0.48
0.014
-
0.019
J
-
1.65
-
-
0.065
-
11. Part Numbering and Marking
10
Specifications are subject to change without notice.
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© 2021 Littelfuse, Inc.
Revised: 6/11/2021
SxX8xSx
Thyristor Datasheet
12. Product Selector
Voltage
Part Number
400 V
600 V
SxX8BS
X
X
SxX8ES
X
X
Gate Sensitivity
Package
-
200 µA
SOT-89
X
200 µA
TO-92
800 V
SxX8TS
X
X
X
200 µA
SOT-223
SxX8BS1
X
X
-
5 µA
SOT-89
SxX8ES1
X
X
X
5 µA
TO-92
SxX8TS1
X
X
X
5 µA
SOT-223
SxX8BS2
X
X
-
50 µA
SOT-89
SxX8ES2
X
X
X
50 µA
TO-92
SxX8TS2
X
X
X
50 µA
SOT-223
13. Packing Options
Part Number
Marking
Weight
Packing Mode
Base Quantity
SxX8ESy
SxX8ESy
0.217 g
Bulk
2500
SxX8ESyAP
SxX8ESy
0.217 g
Ammo Pack
2000
SxX8ESyRP
SxX8ESy
0.217 g
Tape & Reel
2000
SxX8TSyRP
SxX8TSy
0.120 g
Tape & Reel
1000
SxX8BSyRP
xX8y
0.053 g
Tape & Reel
1000
SxX8BSyRP1
xX8y
0.053 g
Tape & Reel
1000
Note: x = voltage/100, y = gate sensitivity
14. Packing Specifications
TO-92 (3-lead) Reel Pack (RP) Radial Leaded Specifications
Meets all EIA-468-C Standards
11
Specifications are subject to change without notice.
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© 2021 Littelfuse, Inc.
Revised: 6/11/2021
SxX8xSx
Thyristor Datasheet
TO-92 (3-lead) Ammo Pack (AP) Radial Leaded Specifications
Meets all EIA-468-C Standards
SOT-89 Reel Pack (RP) Specifications
12
Specifications are subject to change without notice.
Read complete Disclaimer Notice at www.littelfuse.com/disclaimer-electronics.
© 2021 Littelfuse, Inc.
Revised: 6/11/2021
SxX8xSx
Thyristor Datasheet
SOT-89 Reel Pack (RP1) Specifications
SOT-223 Reel Pack (RP) Specifications
For additional information please visit www.Littelfuse.com/powersemi
Disclaimer Notice - Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, lifesaving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of
the product may result in personal injury, death, or property damage) other than those expressly forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for
any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation.
Read complete Disclaimer Notice at www.littelfuse.com/disclaimer-electronics
13
Specifications are subject to change without notice.
Read complete Disclaimer Notice at www.littelfuse.com/disclaimer-electronics.
© 2021 Littelfuse, Inc.
Revised: 6/11/2021