Teccor
®
brand Thyristors
65 / 70 Amp Standard SCRs
Sxx65x & Sxx70x Series
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
• Voltage capability up
to 1000 V
• Surge capability up to
950 A
Agency Approval
Agency
®
Applications
Agency File Number
J & K Packages: E71639
Typical applications are AC solid-state switches, industrial
power tools, exercise equipment, white goods and
commercial appliances.
Internally constructed isolated packages are offered for
ease of heat sinking with highest isolation voltage.
Schematic Symbol
Main Features
Symbol
I
T(RMS)
V
DRM
/V
RRM
I
GT
Value
65 & 70
400 to 1000
50
Unit
A
V
mA
A
K
G
Absolute Maximum Ratings
Symbol
I
T(RMS)
Parameter
RMS on-state current
Test Conditions
Sxx65J
Sxx65K
Sxx70W
I
T(AV)
Average on-state current
Sxx65J
Sxx65K
Sxx70W
T
C
= 75°C
T
C
= 80°C
TC = 75°C
T
C
= 80°C
Value
65
70
41.0
45.0
800
A
950
3745
200
5.0
1.0
-40 to 150
-40 to 125
305
Revised: June 21, 2011 04:14 PM
©2011 Littelfuse, Inc
Specifications are subject to change without notice.
Please refer to http://www.littelfuse.com for current information.
Unit
A
A
A
I
TSM
I
2
t
di/dt
I
GM
P
G(AV)
T
stg
T
J
Sxx65x & Sxx70x Series
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 = 60Hz ; T
J
= 125°C
T
J
= 125°C
P
W
= µS
T
J
= 125°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
A
2
s
A/μs
A
W
°C
°C
Teccor
®
brand Thyristors
65 / 70 Amp Standard SCRs
Electrical Characteristics
(T
J
= 25°C, unless otherwise specified)
Symbol
I
GT
V
GT
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 kΩ; T
J
= 125°C
I
T
= 400mA (initial)
(1)
I
G
= 2 x I
GT
; PW = 15µs; I
T
= 140A
600V
800V
1000V
400V
600V
800V
MIN.
MAX.
MAX.
TYP
.
MIN.
V
D
= 12V; R
L
= 30
Ω
Test Conditions
MAX.
MIN.
MAX.
Value
50
5
2.0
650
600
500
250
550
500
475
0.2
80
35
2.5
V
mA
μs
μs
V/μs
Unit
mA
V
Note :
(1) I
T
=2A; t
p
=50µs; dv/dt=5V/µs; di/dt=-30A/µs
Static Characteristics
Symbol
V
TM
Test Conditions
65A Device I
T
= 130A; t
p
= 380μs
70A Device I
T
= 140A; t
p
= 380μs
T
J
= 25°C
400 – 800V
1000 V
400 – 600V
I
DRM
/ I
RRM
V
DRM
/ V
RRM
T
J
= 100°C
800V
1000V
T
J
= 125°C
400V – 600V
800V
MAX.
MAX.
Value
1.8
20
30
1500
2000
5000
3000
5000
μA
Unit
V
Thermal Resistances
Symbol
R
θ(J-C)
Note: xx = voltage
Parameter
Junction to case (AC)
Sxx65J
Sxx65K
Sxx70W
Value
0.86
0.6
Unit
°C/W
Sxx65x & Sxx70x Series
306
Revised: June 21, 2011 04:14 PM
©2011 Littelfuse, Inc
Specifications are subject to change without notice.
Please refer to http://www.littelfuse.com for current information.
Teccor
®
brand Thyristors
65 / 70 Amp Standard SCRs
Figure 1: Normalized DC Gate Trigger Current
vs. Junction Temperature
2.0
Figure 2: Normalized DC Gate Trigger Voltage
vs. Junction Temperature
2.0
Ratio of I
GT
/I
GT
(T
J
= 25°C)
Ratio of V
GT
/V
GT
(T
J
=25°C)
-15
10
35
60
85
110
125
1.5
1.5
1.0
1.0
0.5
0.5
0.0
-40
0.0
-40
-15
10
35
60
85
110
125
Junction Temperature (T
J
) -- (°C)
Junction Temperature (T
J
) -- (°C)
Figure 3: Normalized DC Holding Current
vs. Junction Temperature
2.0
Figure 4: On-State Current vs. On-State
Voltage (Typical)
200
Instantaneous On-state Current (i
T
) – Amps
180
160
140
120
100
80
60
40
20
0
T
J
= 25°C
Ratio of I
H
/I
H
(T
J
=25°C)
1.5
1.0
0.5
0.0
-40
-15
10
35
60
85
110
125
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.6
Junction Temperature (T
J
) -- (°C)
Instantaneous On-state Voltage (v
T
) – Volts
Figure 5: Power Dissipation (Typical)
vs. RMS On-State Current
60
Figure 6: Maximum Allowable Case Temperature
vs. RMS On-State Current
130
50
Maximum Allowable Case Temperature
(T
C
)-°C
Average On-State Power Dissipation
[P
D (AV)
] - (W atts)
125
120
115
110
105
100
95
90
85
80
75
70
0
40
The "K" package rating with its narrow leads is intended
for high surge condition use only and not recom-
mended for >50A rms continuous current use since lead
temperature depending on lead length can exceed PCB
solder melting temperature. "J" or "W" packages are
recommended for >50A rms continuous current require-
ments.
Sxx70W
30
20
Sxx65K
Sxx65J
10
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 180°
10
20
30
40
50
60
70
80
0
0
10
20
30
40
50
60
70
RMS On-State Current [I
T(R MS)
] - (Am ps)
Note: xx = voltage
Sxx65x & Sxx70x Series
307
Revised: June 21, 2011 04:14 PM
RMS On-State Current [I
T(RMS)
] - Amps
©2011 Littelfuse, Inc
Specifications are subject to change without notice.
Please refer to http://www.littelfuse.com for current information.
Teccor
®
brand Thyristors
65 / 70 Amp Standard SCRs
Figure 7: Maximum Allowable Case Temperature vs. Average On-State Current
130
Maximum Allowable Case Temperature
(T
C
) - °C
125
120
115
110
105
100
95
90
85
80
75
70
0
5
10
15
The "K" package rating with its narrow leads is
intended for high surge condition use only and not
recommended for >32A (AV) continuous current use
since lead temperature depending on lead length can
exceed PCB solder melting temperature. "J" or "W"
packages are recommended for >32A (AV) continu-
ous current requirements.
Sxx70W
Sxx65K
Sxx65J
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 180°
20
25
30
35
40
45
50
Average On-State Current [I
T(AVE)
] - Amps
Figure 8: Peak Capacitor Discharge Current
10000
Figure 9: Peak Capacitor Discharge Current Derating
1.2
Peak Discharge Current (I
TM
) - Amps
1.0
Normalized Peak Current
t
W
0.8
1000
0.6
0.4
I
TRM
0.2
100
0.0
0.5
1.0
10.0
50.0
0
25
50
75
100
125
150
Pulse Current Duration (t
w
) - ms
Case Temperature (T
C
) - °C
Figure 10: Surge Peak On-State Current vs. Number of Cycles
1000
Peak Surge (Non-repetitive)
On-state Current (I
TSM
) – Amps
Sxx70W
SUPPLY FREQUENCY: 60 Hz Sinusoidal
LOAD: Resistive
RMS On-State Current: [I
T(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
Sxx65K
Sxx65J
10
1
10
100
1000
Surge Current Duration -- Full Cycles
Note: xx = Voltage
Sxx65x & Sxx70x Series
308
Revised: June 21, 2011 04:14 PM
©2011 Littelfuse, Inc
Specifications are subject to change without notice.
Please refer to http://www.littelfuse.com for current information.
Teccor
®
brand Thyristors
65 / 70 Amp Standard SCRs
Soldering Parameters
Reflow Condition
- Temperature Min (T
s(min)
)
Pre Heat
- Temperature Max (T
s(max)
)
- Time (min to max) (t
s
)
Average ramp up rate (Liquidus Temp)
(T
L
) to peak
T
S(max)
to T
L
- Ramp-up Rate
Reflow
- Temperature (T
L
) (Liquidus)
- Temperature (t
L
)
Pb – Free assembly
T
P
Temperature
t
P
Ramp-up
150°C
200°C
60 – 180 secs
5°C/second max
5°C/second max
217°C
60 – 150 seconds
260
+0/-5
T
L
T
S(max)
t
L
Preheat
Ramp-do
Ramp-down
T
S(min)
t
S
time to peak temperature
25
Time
Peak Temperature (T
P
)
Time within 5°C of actual peak
Temperature (t
p
)
Ramp-down Rate
Time 25°C to peak Temperature (T
P
)
Do not exceed
°C
20 – 40 seconds
5°C/second max
8 minutes Max.
280°C
Physical Specifications
Terminal Finish
Body
Lead Material
100% Matte Tin-plated
UL recognized epoxy meeting flammability
classification 94V-0
Copper Alloy
Environmental Specifications
Test
AC Blocking
Temperature Cycling
Temperature/
Humidity
High Temp Storage
Low-Temp Storage
Thermal Shock
Specifications and Conditions
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, M-1056
10 cycles; 0°C to 100°C; 5-min dwelltime
at each temperature; 10 sec (max) transfer
time between temperature
EIA / JEDEC, JESD22-A102
168 hours (121°C at 2 ATMs) and
100% R/H
MIL-STD-750 Method 2031
ANSI/J-STD-002, category 3, Test A
MIL-STD-750, M-2036 Cond E
Design Considerations
Careful selection of the correct device 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 device
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.
Autoclave
Resistance to
Solder Heat
Solderability
Lead Bend
Sxx65x & Sxx70x Series
309
Revised: June 21, 2011 04:14 PM
©2011 Littelfuse, Inc
Specifications are subject to change without notice.
Please refer to http://www.littelfuse.com for current information.
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