Teccor
®
brand Thyristors
8 Amp Sensitive & Standard SCRs
Sxx08xSx & Sxx08x Series
Description
Excellent unidirectional switches for phase control
applications such as heating and motor speed controls.
Sensitive gate SCRs are easily triggered with microAmps
of current as furnished by sense coils, proximity switches,
and microprocessors.
Standard phase control SCRs are triggered with few
milliamperes of current at less than 1.5V potential.
Features & Benefits
to 1000 V
junctions
Agency Approval
Agency
®
to 100 A
Agency File Number
L Package: E71639
Applications
Typical applications are capacitive discharge systems for
strobe lights, nailers, staplers and gas engine ignition. Also
controls for power tools, home/brown goods and white
goods appliances.
Unit
A
V
mA
Main Features
Symbol
I
T(RMS)
V
DRM
/ V
RRM
I
GT
Value
8
400 to 1000
0.2 to 15
Internally constructed isolated packages are offered for
ease of heat sinking with highest isolation voltage.
Schematic Symbol
A
K
G
Sxx08xSx & Sxx08x Series
255
©2013 Littelfuse, Inc
Specifications are subject to change without notice.
Revised: 09/23/13
Teccor
®
brand Thyristors
8 Amp Sensitive & Standard SCRs
Absolute Maximum Ratings — Sensitive SCRs
Symbol
Parameter
Test Conditions
Sxx08LSy
I
T(RMS)
RMS on-state current
Sxx08RSy
Sxx08DSy
Sxx08VSy
Sxx08LSy
I
T(AV)
Average on-state current
Sxx08RSy
Sxx08DSy
Sxx08VSy
T
C
= 80°C
T
C
= 95°C
T
C
= 80°C
T
C
= 95°C
5.1
A
8
A
Value
Unit
I
TSM
I
2
t
di/dt
I
GTM
P
G(AV)
T
stg
T
J
Peak non-repetitive surge current
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 = 60 Hz ; T
J
= 110°C
T
J
= 110°C
T
J
= 110°C
83
A
100
41
70
1.6
0.4
-40 to 150
-40 to 110
A
2
s
A/μs
A
W
°C
°C
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
Note: xx = voltage, y = sensitivity
Absolute Maximum Ratings — Standard SCRs
Symbol
Parameter
Test Conditions
Sxx08L
I
T(RMS)
RMS on-state current
Sxx08R
Sxx08D
Sxx08V
Sxx08L
I
T(AV)
Average on-state current
Sxx08R
Sxx08D
Sxx08V
T
C
= 100°C
8
T
C
= 110°C
T
C
= 100°C
5.1
T
C
= 110°C
83
A
100
41
100
2
0.5
-40 to 150
-40 to 125
A
2
s
A/μs
A
W
°C
°C
A
A
Value
Unit
I
TSM
Peak non-repetitive surge current
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 = 60 Hz T
J
= 125°C
T
J
= 125°C
T
J
= 125°C
I
2
t
di/dt
I
GM
P
G(AV)
T
stg
T
J
Note: xx = voltage
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
Sxx08xSx & Sxx08x Series
256
©2013 Littelfuse, Inc
Specifications are subject to change without notice.
Revised: 09/23/13
Teccor
®
brand Thyristors
8 Amp Sensitive & Standard SCRs
Electrical Characteristics
(T
J
= 25°C, unless otherwise specified)
– Sensitive SCRs
Symbol
I
GT
V
GT
dv/dt
V
GD
V
GRM
I
H
t
q
t
gt
Test Conditions
V
D
= 6V R
L
= 100
:
V
D
= V
DRM
; R
GK
= 1kΩ; T
J
= 110°C
V
D
= V
DRM
R
L
= 3.3 k: T
J
= 110°C
I
GR
= 10μA
I
T
= 20mA (initial)
I
T
=2A; t
p
=50μs; dv/dt=5V/μs; di/dt=-30A/μs
I
G
= 2 x I
GT
PW = 15μs I
T
= 12A
MAX.
MAX.
TYP
.
MIN.
MIN.
MAX.
MAX.
TYP
.
6
50
4
Value
Sxx08xS2
200
0.8
8
0.2
6
8
45
5
Sxx08xS3
500
Unit
μA
V
V/μs
V
V
mA
μs
μs
Note: xx = voltage x = package
Electrical Characteristics
(T
J
= 25°C, unless otherwise specified)
– Standard SCRs
Symbol
I
GT
V
GT
Test Conditions
V
D
= 12V R
L
= 60
:
400V
V
D
= V
DRM
; gate open; T
J
= 100°C
dv/dt
V
D
= V
DRM
; gate open; T
J
= 125°C
V
GD
I
H
t
q
t
gt
V
D
= V
DRM
R
L
= 3.3 k: T
J
= 125°C
I
T
= 200mA (initial)
I
T
=2A; t
p
=50μs; dv/dt=5V/μs; di/dt=-30A/μs
I
G
= 2 x I
GT
PW = 15μs I
T
= 16A
600V
800V
1000V
400V
600V
800V
MIN.
MAX.
MAX.
TYP
.
MIN.
MAX.
MAX.
Value
Sxx08x
15
1.5
350
300
250
100
250
225
200
0.2
30
35
2
V
mA
μs
μs
V/μs
Unit
mA
V
Note: xx = voltage x = package
Static Characteristics
Symbol
V
TM
Test Conditions
I
T
= 16A; t
p
= 380 μs
Sxx08xyy
T
J
= 25°C
T
J
= 110°C
T
J
= 25°C
Sxx08x
T
J
= 100°C
T
J
= 125°C
Note: xx = voltage, x = package, yy = sensitivity
Value
MAX.
400 - 600V
400 - 600V
400 - 800V
1.6
5
250
10
MAX.
20
200
3000
500
Unit
V
I
DRM
/ I
RRM
V
DRM
= V
RRM
1000V
400 - 800V
1000V
400 - 800V
μA
Sxx08xSx & Sxx08x Series
257
©2013 Littelfuse, Inc
Specifications are subject to change without notice.
Revised: 09/23/13
Teccor
®
brand Thyristors
8 Amp Sensitive & Standard SCRs
Thermal Resistances
Symbol
Parameter
Sxx08RSy
Sxx08LSy
Sxx08VSy
Sxx08DSy
R
T(J-C)
Junction to case (AC)
Sxx08R
Sxx08L
Sxx08V
Sxx08D
Sxx08RSy
Sxx08LSy
Sxx08VSy
R
T(J-A)
Junction to ambient
Sxx08R
Sxx08L
Sxx08V
Note: xx = voltage, y = sensitivity
Value
1.8
3.4
2.1
1.5
Unit
°C/W
1.8
3.4
2.0
1.5
40
65
85
°C/W
40
50
70
Figure 1: Normalized DC Gate Trigger Current
vs. Junction Temperature (Sensitive SCR)
4.0
Figure 2: Normalized DC Gate Trigger Current
vs. Junction Temperature (Standard SCR)
4.0
Ratio of I
GT
/ I
GT
(T
J
= 25°C)
-40
-15
10
35
60
85
110
Ratio of I
GT
/ I
GT
(T
J
= 25°C)
3.0
3.0
2.0
2.0
1.0
1.0
0.0
0.0
-40
-15
10
35
60
85
110
125
Junction Temperature (T
J
) - (°C)
Junction Temperature (T
J
) - (°C)
Sxx08xSx & Sxx08x Series
258
©2013 Littelfuse, Inc
Specifications are subject to change without notice.
Revised: 09/23/13
Teccor
®
brand Thyristors
8 Amp Sensitive & Standard SCRs
Figure 3: Normalized DC Gate Trigger Voltage
vs. Junction Temperature
2.0
Figure 4: Normalized DC Holding Current
vs. Junction Temperature
2.0
Ratio of V
GT
/ V
GT
(T
J
= 25°C)
Ratio of I
H
/ I
H
(T
J
= 25°C)
1.5
1.5
1.0
1.0
0.5
0.5
0.0
0.0
-40
-15
10
35
60
85
110
125
-40
-15
10
35
60
85
110
125
Junction Temperature (T
J
) - (°C)
Junction Temperature (T
J
) - (°C)
Figure 5: On-State Current
vs. On-State Voltage (Typical)
32
Figure 6: Power Dissipation (Typical)
vs. RMS On-State Current
8
Instantaneous On-state Current (i
T
) – Amps
Average On-State Power Dissipation
[P
D(AV)
] -- (Watts)
T
J
= 25°C
28
24
20
16
12
8
4
0
0.7
7
6
5
4
3
2
1
0
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.6
0
1
2
3
4
5
6
7
8
Instantaneous On-state Voltage (v
T
) – Volts
RMS On-State Current [I
T(RMS)
] - (Amps)
Figure 7: Maximum Allowable Case Temperature
vs. RMS On-State Current
130
Figure 8: Maximum Allowable Case Temperature
vs. Average On-State Current
130
Maximum Allowable Case Temperature
(T
C
) - °C
125
Maximum Allowable Case
Temperature (T
C
) - °C
Sxx08R
Sxx08D
Sxx08V
Sxx08RSy
Sxx08DSy
Sxx08VSy
Sxx08L
125
120
115
110
105
100
95
90
85
80
Sxx08RSy
Sxx08DSy
Sxx08VSy
Sxx08R
Sxx08D
Sxx08V
120
115
110
105
100
95
90
85
80
0
1
2
3
4
5
6
7
8
9
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
Conduction Angle: 180°
FREE AIR RATING
Sxx08LSy
Sxx08L
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
Conduction Angle: 180°
FREE AIR RATING
0
1
2
Sx08LSy
3
4
5
RMS On-State Current [I
T(RMS)
] - Amps
Average On-State Current [I
T(AVE)
] - Amps
Sxx08xSx & Sxx08x Series
259
©2013 Littelfuse, Inc
Specifications are subject to change without notice.
Revised: 09/23/13
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