Littelfuse-S4X8ES
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T
e
ccor
®
bran
d
T
hyristors
EV Series 0.8 Amp Sensitive SCRs
RoHS
SxX8xSx Series
Description
This new sensitive SCR component series offers a high
static dv/dt with a low turn off (tq) time. It is specifically
designed for GFCI (Ground Fault Circuit Interrupter) and
Gas Ignition applications. All SCRs junctions are glass-
passivated to ensure long term reliability and parametric
stability.
Features
• RoHS compliant and
Halogen-Free
• High dv/dt noise immunity
• Improved turn-off time (t
q
)
< 30 μsec
•
T
hru-hole and surface
mount packages
• Sensitive gate for direct
microprocessor interface
• Surge current
Main Features
capability < 10Amps
Symbol
I
T(RMS)
Value
0.8
Unit
A
• Blocking voltage
( V
DRM
/ V
RRM
)
capability – up to 800V
V
DRM
/ V
RRM
I
GT
400 to 800
0.5 to 200
V
μA
Schematic Symbol
A
Applications
The SxX8xSx EV series is specifically designed for
GFCI (Ground Fault Circuit Interrupter) and gas ignition
applications.
G
K
Absolute Maximum Ratings
Symbol
Parameter
Value
Unit
TO-92
SO
T
–
89
SO
T
–
223
TO-92
T
C
= 55°C
0.8
0.8
A
A
I
T(RMS)
RMS on-state current (full sine wave)
Average on-state current
T
C
= 60°C
T
L
= 60°C
T
C
= 55°C
T
C
= 60°C
T
L
= 60°C
F= 50Hz
0.8
A
0.51
0.51
0.51
8
A
I
T(AV)
SO
T
–
89
SO
T
–
223
A
A
TO-92
SO
T
–
89
SO
T
–
223
A
Non repetitive surge peak on-state current
(Single cycle, T
J
initial = 25°C)
I
TSM
I
2
t
F= 60Hz
10
A
t
p
= 10 ms
t
p
= 8.3 ms
F = 50 Hz
F = 60 Hz
0.32
0.41
A
2
s
A
2
s
I
2
t Value for fusing
TO-92
SO
T
–
89
SO
T
–
223
di/dt
Critical rate of rise of on-state current I
G
= 10mA
T
J
= 125°C
50
A/µs
I
GM
Peak Gate Current
t
p
= 10 μs
T
J
= 125°C
1
.
0
A
P
G(AV)
T
stg
T
J
Average gate power dissipation
Storage junction temperature range
Operating junction temperature range
—
—
—
T
J
= 125°C
0.1
W
°C
°C
—
—
-40 to 150
-40 to 125
© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: May 4, 2017
T
e
ccor
®
bran
d
T
hyristors
EV Series 0.8 Amp Sensitive SCRs
Electrical Characteristics
(T
J
= 25°C, unless otherwise specified)
Value
Symbol
Description
T
e
st Conditions
Limit
Unit
SxX8yS1 SxX8yS2
SxX8yS
15
MIN.
0.5
5
1
μA
μA
V
D
= 6V
R
L
= 1
0
0
Ω
I
GT
DC Gat
e
T
r
igger Current
MAX.
50
200
V
D
= 6V
V
GT
DC Gat
e
T
r
igger Voltage
MAX.
MIN.
0.8
5
V
V
R
L
= 1
0
0
Ω
I
RG
= 10μA
V
GRM
Peak Reverse Gate Voltage
R
= 1 KΩ
Initial
C
G
u
K
rrent = 20mA
I
H
Holding Current
MAX.
5
mA
T
J
= 125°C
V
D
= V
DRM
/V
RRM
Exp. Waveform
R
GK
=1 k
Ω
Critical Rate-of-Rise of
Off-State Voltage
(dv/dt)s
MIN.
75
V/μs
V
D
= V
R
=1
D
k
R
Ω
M
Gate Non-
T
r
igger Voltage
T
u
rn-Of
f
T
ime
MIN.
MAX.
TY
P
.
0.2
25
V
V
GD
T
G
J
K
= 25°C
T
J
= 25°C @ 600 V
30
25
μs
μs
t
q
R
GK
=1 k
Ω
I
G
=10mA
PW = 15μsec
I
T
=
1
.
6A(pk)
T
u
rn-O
n
T
ime
2.0
2.0
2.0
t
gt
Note: x
= voltage, y = package
Static Characteristics
(T
J
= 25°C, unless otherwise specified)
Symbol
V
TM
Description
T
e
st Conditions
TM
=
1
.
6A (pk)
Limit
Value
Unit
Peak On-State Voltage
I
MAX.
1
.
70
V
T
J
= 25°C @ V
D
= V
DRM
MAX.
MAX.
3
μA
μA
R
GK
=1 k
Ω
I
DRM
Off-State Current, Peak Repetitive
T
J
= 125°C @ VD = V
DRM
500
R
GK
=1 k
Ω
Thermal Resistances
Symbol
Description
T
e
st Conditions
Value
75
Unit
°C/W
°C/W
°C/W
°C/W
°C/W
°C/W
TO-92
1
SO
T
–
223
SO
T
–
89
TO-92
Junction to case (AC)
I
T
= 0.8A
(RMS)
30
R
th(j-c)
50
150
60
1
SO
T
–
223
SO
T
–
89
I
T
= 0.8A
(RMS)
Junction to ambient
R
th(j-a)
90
1
60Hz AC resistive load condition, 100% conduction.
© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: May 4, 2017
T
e
ccor
®
bran
d
T
hyristors
EV Series 0.8 Amp Sensitive SCRs
Figure 1: Normalized DC Gat
e
T
r
igger Current For All
Quadrants vs. Junctio
n
T
e
mperature
Figure 2: Normalized DC Holding Current
vs. Junctio
n
T
e
mperature
2.0
1
.
5
1
.
0
0.5
0.0
4.0
3.0
2.0
1
.
0
0.0
-40
-15
+25
+65
+105
+125
-55
-35
-15
+5
+25
+45
+65
+85
+105
+125
Junctio
n
T
e
mperature (T
J
) – °C
Junctio
n
T
e
mperature (T
J
) –
°C
Figure 3: Normalized DC Gat
e
T
r
igge
r
V
o
ltage
vs. Junctio
n
T
e
mperature
Figure 4: On-State Current vs. On-State
V
o
ltage (
T
y
pical)
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
10
8
SxX8xS1
SxX8xS
6
SxX8xS2
4
2
0
-40
-25
-10
+5
+20
+35
+50
+65
+80
+95 +110
+125
0.9
1.3
1.7
2.1
2.5
2.9
3.3
3.7
Instantaneous On-state Voltage (VT) – Volts
Junction Temperature (T
J
) – °C
Figure 5: Power Dissipation (
T
y
pical)
vs. RMS On-State Current
Figure 6: Maximum Allowable Cas
e
T
e
mperature
vs. On-State Current
0.8
130
CURREN
T
W
AVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CURREN
T
W
AVEFORM: Sinusoidal
CONDUCTION ANGLE: 180
o
0.7
120
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 180
o
CAS
E
T
EMPER
A
T
URE: Measured as
shown on dimensional drawings
0.6
110
SO
T
–
223 & SO
T
–
89
0.5
0.4
0.3
0.2
0.1
0.0
1
0
0
90
TO-92
80
70
60
50
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
RMS On-state Current [I
T(RMS)
] – Amps
RMS On-state Current [I
T(RMS)
] – Amps
© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: May 4, 2017
T
e
ccor
®
bran
d
T
hyristors
EV Series 0.8 Amp Sensitive SCRs
Figure 7: Surge Peak On-State Current vs. Number of Cycles
20
Supply Frequency: 60Hz Sinusoidal
Load: Resistive
RMS On-State Current [I
T(RMS)
]: Max Rated Value at
Specific Cas
e
T
e
mperature
10
9
8
7
Notes:
1.
G
ate 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.
6
5
4
3
2
1
1
2
3
4
5
6 7 8 9 10
20
30 40 60
80 100
200 300
400 600
1000
Surge Current Duration – Full Cycle
Soldering Parameters
Reflow Condition
Pb – Free assembly
150°C
t
P
T
P
–
T
e
mperature Min (T
s(min)
)
Ramp-up
T
L
T
S(max)
Pre Heat
–
T
e
mperature Max (T
s(max)
)
200°C
t
L
-Time (min to max) (t
s
)
60 – 180 secs
Ramp-down
Average ramp up rate (Liquidu
s
T
e
mp)
(T
L
) to peak
5°C/second max
T
S(min)
t
S
T
S(max)
t
o
T
L
– Ramp-up Rate
5°C/second max
217°C
–
T
e
mperature (T
L
) (Liquidus)
Reflow
25
time to peak temperature
-Time (min to max) (t
s
)
60 – 150 seconds
260
+0/-5
°C
Time
Pea
k
T
e
mperature (T
P
)
Time within 5°C of actual peak
T
e
mperature (t
p
)
20 – 40 seconds
Ramp-down Rate
5°C/second max
8 minutes Max.
280°C
Time 25°C to pea
k
T
e
mperature (T
P
)
Do not exceed
Additional Information
© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: May 4, 2017
T
e
ccor
®
bran
d
T
hyristors
EV Series 0.8 Amp Sensitive SCRs
Physical Specifications
Reliability/Environmenta
l
T
e
sts
T
e
st
AC Blocking
Specifications and Conditions
T
e
rminal Finish
Body Material
Lead Material
1
0
0% Matt
e
T
in-plated.
MIL-STD-750, M-1040, Cond A Applied
Peak AC voltage @
1
1
0
°C for 1008 hours
UL recognized epoxy meeting flammability
classification 94V-0.
MIL-STD-750, M-1051,
1
0
0 cycles; -40°C to +150°C; 15-min
dwell-time
T
e
mperature Cycling
Copper Alloy
EIA / JEDEC, JESD22-A101
1
0
08 hours; 320V – DC: 85°C; 85%
rel humidity
T
e
mperature/
Humidity
Design Considerations
MIL-STD-750, M-1031,
1
0
08 hours; 150°C
Hig
h
T
e
mp Storage
Low-
T
e
mp 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.
1
0
08 hours; -40°C
Resistance to
Solder Heat
MIL-STD-750 Method 2031
Solderability
Lead Bend
ANSI/J-STD-002, category 3,
T
e
st A
MIL-STD-750, M-2036 Cond E
Dimensions
–
T
O-92
A
B
C
D
E
F
0.175
0.170
0.500
0.135
0.125
0.080
0.016
0.045
0.095
0.015
0.205
0.210
4.450
4.320
12.70
3.430
3.180
2.040
0.407
1
.
150
2.420
0.380
5.200
5.330
A
T
C
MEASURING POINT
B
0.165
0.105
0.021
0.055
0.105
0.020
4.190
2.660
0.533
1
.
390
2.660
0.500
SEATING
PLANE
G
H
I
C
GATE
J
ANODE
G
H
CATHODE
I
D
E
F
J
F
© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: May 4, 2017
T
e
ccor
®
bran
d
T
hyristors
EV Series 0.8 Amp Sensitive SCRs
Dimensions – SO
T
–
223
Anode
Inches
Millimeters
Dimensions
Min
0.248
0.130
—
T
y
p
0.256
0.138
—
Max
0.264
0.146
0.071
0.004
0.124
0.034
—
Min
6.30
3.30
—
T
y
p
6.50
3.50
—
Max
6.70
3.70
1
.
80
0.10
3.15
0.85
—
A
B
C
D
E
F
Gate
Anode
Cathode
3.3
(0.130”)
0.001
0.
1
14
0.024
—
—
0.02
2.90
0.60
—
—
0.
1
18
0.027
0.090
0.181
0.276
0.010
3.00
0.70
2.30
4.60
7. 0 0
0.26
1.5
(0.059”)
1.2
6.4
(0.252”)
G
H
I
2.3
(0.091”)
(0.047”)
(3x)
—
—
—
—
1.5
(0.059”)
0.264
0.009
0.287
0.014
6.70
0.24
7
.
30
0.35
4.6
(0.181”)
J
K
10° MAX
Dimensions in Millimeters (Inches)
Dimensions – SO
T
–
89
A
J
C
Tc Measuring Point
Anode
B
E
D
H
F
Cathode
Inches
T
y
p
—
Millimeters
Gate
Dimension
G
Anode
Min
Max
0.181
0.102
0.063
0.167
0.047
0.062
0.121
0.017
0.019
0.072
Min
4.40
2.29
1
.
40
3.94
0.89
1
.
42
2.92
0.35
0.36
1
.
62
T
y
p
—
—
—
—
—
—
—
—
—
—
Max
4.60
2.60
1
.
60
4.25
1
.
20
1
.
57
3.07
0.44
0.48
1
.
83
A
B
C
D
E
F
0.173
0.090
0.055
0.155
0.035
0.056
0.
1
15
0.014
0.014
0.064
Pad Layout for SO
T
–
89
—
(2.21)
.087
—
(
1
.
12)
.044
—
—
(3.91)
.154
—
(
1
.
19)
.047
G
H
I
—
(0.91)
.036
—
(
1
.
63)
.064
(
1
.
63)
.064
Dimensions in Millimeters (Inches)
—
J
—
© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: May 4, 2017
T
e
ccor
®
bran
d
T
hyristors
EV Series 0.8 Amp Sensitive SCRs
Product Selector
Voltage
Part Number
Gate Sensitivity
Package
400V
X
600V
—
X
800V
—
—
X
S4X8ES
200 μA
200 μA
200 μA
200 μA
200 μA
200 μA
200 μA
200 μA
5 μA
TO-92
TO-92
S6X8ES
—
—
X
S8X8ES
—
—
X
TO-92
S4X8TS
—
—
X
SO
T
–
223
SO
T
–
223
SO
T
–
223
SO
T
–
89
SO
T
–
89
TO-92
S6X8TS
—
—
X
S8X8TS
—
—
X
S4X8BS
S6X8BS
S4X8ES1
S6X8ES1
S8X8ES1
S4X8TS1
S6X8TS1
S8X8TS1
S4X8ES2
S6X8ES2
S8X8ES2
S4X8TS2
S6X8TS2
S8X8TS2
S4X8BS1
S6X8BS1
S4X8BS2
S6X8BS2
—
—
—
—
X
—
X
—
X
—
—
X
5 μA
TO-92
—
—
X
5 μA
TO-92
—
—
X
5 μA
SO
T
–
223
SO
T
–
223
SO
T
–
223
TO-92
—
—
X
5 μA
—
—
X
5 μA
—
—
X
50 μA
50 μA
50 μA
50 μA
50 μA
50 μA
5 μA
—
—
X
TO-92
—
—
X
TO-92
—
—
X
SO
T
–
223
SO
T
–
223
SO
T
–
223
SO
T
–
89
SO
T
–
89
SO
T
–
89
SO
T
–
89
—
—
X
—
—
X
—
—
—
—
—
X
5 μA
—
X
50 μA
50 μA
—
Packing Options
Part Number
Marking
Weight
Packing Mode
Base Quantity
SxX8ESy
SxX8ESy
SxX8ESy
SxX8ESy
SxX8TSy
xX8
0.217g
0.217g
0.217g
0.120g
0.053g
0.053g
Bulk
2500
2000
2000
1
0
00
1
0
00
1
0
00
SxX8ESyAP
SxX8ESyRP
SxX8TSyRP
SxX8BSyRP
SxX8BSyRP1
Ammo Pack
T
a
pe & Reel
T
a
pe & Reel
T
a
pe & Reel
T
a
pe & Reel
xX8
Note: x = voltage, y = gate sensitivity
© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: May 4, 2017
T
e
ccor
®
bran
d
T
hyristors
EV Series 0.8 Amp Sensitive SCRs
TO-92 (3-lead) Reel Pack (RP) Radial Leaded Specifications
Meets all EIA-468-C Standards
0.02 (0.5)
0.236
(6.0)
0.098 (2.5) MAX
1.26
(32.0)
1.6
(41.0)
0.708
(18.0)
0.354
(9.0)
0.5
(12.7)
Anode
Cathode
0.2 (5.08)
0.1 (2.54)
14.17(360.0)
Gate
0.157
(4.0)
DIA
Flat up
1.97
(50.0)
Dimensions
are in inches
(and millimeters).
Direction of Feed
TO-92 (3-lead) Ammo Pack (AP) Radial Leaded Specifications
Meets all EIA-468-C Standards
0.02 (0.5)
0.236
(6.0)
0.098 (2.5) MAX
1.27
1.62
(32.2)
(41.2)
0.708
(18.0)
0.354
(9.0)
0.157
(4.0)
Anode
0.2 (5.08)
0.5
0.1 (2.54)
Cathode
Gate
DIA
(12.7)
Flat down
25 Devices per fold
1.85
(47.0)
12.2
(310.0)
Dimensions
are in inches
(and millimeters).
1.85
(47.0)
13.3
(338.0)
© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: May 4, 2017
T
e
ccor
®
bran
d
T
hyristors
EV Series 0.8 Amp Sensitive SCRs
SO
T
–
89 Reel Pack (RP) Specifications
4 mm
8 mm
2 mm
Ø1.5 mm
1.75 mm
ANODE
5.5 mm
12 mm
CATHODE
GATE
ANODE
180 mm
13 mm Abor
Hole Diameter
13.4 mm
DIRECTION OF FEED
SO
T
–
89 Reel
Pack (RP1) Specifications
1
.
5mm
Ф
4mm
8mm
2mm
CATHODE
ANODE
1
.
75mm
5.5mm
12mm
GATE
ANODE
180 mm
13 mm Abor
Hole Diameter
13.4 mm
DIRECTION OF FEED
© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: May 4, 2017
T
e
ccor
®
bran
d
T
hyristors
EV Series 0.8 Amp Sensitive SCRs
SO
T
–
223 Reel Pack (RP) Specifications
4 mm
8 mm
2 mm
∅
1
.
5 mm
A
1
.
75 mm
5.5 mm
12 mm
GATE
K
A
180 mm
13 mm Abor
Hole Diameter
13.4 mm
Part Numbering System
Part Marking System
S
x
X8 xxx xx
PACKING TYPE
Blank:
Bulk Pack
RP:
Reel Pack (TO-92)
SERIES
S:
SCR
Embossed Carrier Pack (SOT-223)
Embossed Carrier Pack (SOT-89)
RP1:
Embossed Carrier Pack (SOT-89)
(alternate orientation)
VOLTAGE
4:
400V
6:
600V
8:
800V
SOT89
SOT223
AP:
Ammo Pack (TO-92)
CURRENT
X8:
0.8A
SENSITIVITY & TYPE
S1:
5
µA Sensitive SCR
Line1 = Littelfuse Part Number
Line2 = continuation…Littelfuse Part Number
Y = Last Digit of Calenda
r
Y
e
ar
M = Letter Month Code (A-L for Jan-Dec)
L = Location Code
S2:
50
µA Sensitive SCR
S:
200
µA Sensitive SCR
PACKAGE TYPE
DD = Calendar Date
E:
TO-92
T:
SOT-223
B:
SOT-89
TO-92
© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: May 4, 2017
