305
Revised: June 21, 2011 04:14 PM
©2011 Littelfuse, Inc
Teccor® brand Thyristors
Specifications are subject to change without notice.
Please refer to http://www.littelfuse.com for current information.
65 / 70 Amp Standard SCRs
Sxx65x & Sxx70x Series
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
Schematic Symbol
Main Features
Symbol Value Unit
IT(RMS) 65 & 70 A
VDRM /VRRM 400 to 1000 V
IGT 50 mA
Absolute Maximum Ratings
Symbol Parameter Test Conditions Value Unit
IT(RMS) RMS on-state current
Sxx65J
Sxx65K TC = 75°C 65 A
Sxx70W TC = 80°C 70
IT(AV) Average on-state current
Sxx65J
Sxx65K TC = 75°C 41.0 A
Sxx70W TC = 80°C 45.0 A
ITSM Peak non-repetitive surge current
single half cycle; f = 50Hz;
TJ (initial) = 25°C 800
A
single half cycle; f = 60Hz;
TJ (initial) = 25°C 950
I2t I2t Value for fusing tp = 8.3 ms 3745 A2s
di/dt Critical rate of rise of on-state current f = 60Hz ; TJ = 125°C 200 A/μs
IGM Peak gate current TJ = 125°C
PW = µS 5.0 A
PG(AV) Average gate power dissipation TJ = 125°C 1. 0 W
Tstg Storage temperature range -40 to 150 °C
TJOperating junction temperature range -40 to 125 °C
Applications
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.
AK
G
Agency Approval
Agency Agency File Number
®J & K Packages: E71639
®
306
Revised: June 21, 2011 04:14 PM
©2011 Littelfuse, Inc
Teccor® brand Thyristors
Specifications are subject to change without notice.
Please refer to http://www.littelfuse.com for current information.
65 / 70 Amp Standard SCRs
Sxx65x & Sxx70x Series
Electrical Characteristics (TJ = 25°C, unless otherwise specified)
Symbol Test Conditions Value Unit
IGT VD = 12V; RL = 30 Ω
MAX. 50
mA
MIN. 5
VGT MAX. 2.0 V
dv/dt
VD = VDRM; gate open; TJ = 100°C
400V
MIN.
650
V/μs
600V 600
800V 500
1000V 250
VD = VDRM; gate open; TJ = 125°C
400V 550
600V 500
800V 475
VGD VD = VDRM; RL = 3.3 kΩ; TJ = 125°C MIN. 0.2 V
IHIT = 400mA (initial) MAX. 80 mA
tq(1) MAX. 35 μs
tgt IG = 2 x IGT; PW = 15µs; IT = 140A TYP. 2.5 μs
Note :
(1) IT=2A; tp=50µs; dv/dt=5V/µs; di/dt=-30A/µs
Thermal Resistances
Symbol Parameter Value Unit
Rθ(J-C) Junction to case (AC)
Sxx65J
Sxx65K 0.86
°C/W
Sxx70W 0.6
Note: xx = voltage
Static Characteristics
Symbol Test Conditions Value Unit
VTM
65A Device IT = 130A; tp = 380μs
MAX. 1. 8 V
70A Device IT = 140A; tp = 380μs
IDRM / IRRM VDRM / VRRM
TJ = 25°C
400 – 800V
MAX.
20
μA
1000 V 30
TJ = 100°C
400 – 600V 1500
800V 2000
1000V 5000
TJ = 125°C
400V – 600V 3000
800V 5000
307
Revised: June 21, 2011 04:14 PM
©2011 Littelfuse, Inc
Teccor® brand Thyristors
Specifications are subject to change without notice.
Please refer to http://www.littelfuse.com for current information.
65 / 70 Amp Standard SCRs
Sxx65x & Sxx70x Series
Figure 1: Normalized DC Gate Trigger Current
vs. Junction Temperature
Figure 2: Normalized DC Gate Trigger Voltage
vs. Junction Temperature
0.0
0.5
1.0
1.5
2.0
-40 -1510356085110
Ratio of IGT /IGT (TJ = 25°C)
Junction Temperature (TJ) -- (°C)
125
Figure 5: Power Dissipation (Typical)
vs. RMS On-State Current
Figure 6: Maximum Allowable Case Temperature
vs. RMS On-State Current
Figure 3: Normalized DC Holding Current
vs. Junction Temperature
Figure 4: On-State Current vs. On-State
Voltage (Typical)
0.0
0.5
1.0
1.5
2.0
-40 -1510356085110
Ratio of VGT /VGT (TJ=25°C)
Junction Temperature (TJ) -- (°C)
125
0.0
0.5
1.0
1.5
2.0
-40 -1510356085110
Ratio of IH /IH (TJ =25°C)
Junction Te mperature (TJ) -- (°C)
125
0
20
40
60
80
100
120
140
160
180
200
0.7 0.8 0.9 1.01.1 1.21.3 1.41.5 1.6
Instantaneous On-state Current (iT) – Amps
Instantaneous On-state Voltage (vT) – Vo lts
TJ = 25°C
0
10
20
30
40
50
60
010203040506
07
0
Average On-State Power Dissipation
[PD (AV)] - (W atts)
RMS On-State Current [IT(R MS)] - (Am ps)
70
75
80
85
90
95
100
105
110
11 5
120
125
130
01020304050607
08
0
Maximum Allowable Case Temperature
(TC)-°C
RMS On-State Current [IT(RMS)] - Amps
Sxx70W
Sxx65K
Sxx65J
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 180°
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.
Note: xx = voltage
308
Revised: June 21, 2011 04:14 PM
©2011 Littelfuse, Inc
Teccor® brand Thyristors
Specifications are subject to change without notice.
Please refer to http://www.littelfuse.com for current information.
65 / 70 Amp Standard SCRs
Sxx65x & Sxx70x Series
Figure 7: Maximum Allowable Case Temperature vs. Average On-State Current
70
75
80
85
90
95
100
105
110
11 5
120
125
130
0510 15 20 25 30 35 40 45 50
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 180°
Sxx65K
Sxx65J
Maximum Allowable Case Temperature
(TC) - °C
Average On-State Current [IT(AVE)] - Amps
Sxx70W
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.
10
100
1000
110100 1000
Sxx65K
Sxx65J
Sxx70W
Surge Current Duration -- Full Cycles
Peak Surge (Non-repetitive)
On-state Current (ITSM) – Amps
Figure 10: Surge Peak On-State Current vs. Number of Cycles
SUPPLY FREQUENCY: 60 Hz Sinusoidal
LOAD: Resistive
RMS On-State Current: [IT(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.
Figure 8: Peak Capacitor Discharge Current Figure 9: Peak Capacitor Discharge Current Derating
100
1000
10000
0.5 1.
01
0.0 50.0
Peak Discharge Current (ITM) - Amps
Pulse Current Duration (tw) - ms
ITRM
tW
0.0
0.2
0.4
0.6
0.8
1.0
1.2
0255075100 12
51
50
Normalized Peak Current
Case Te mperature (TC) - °C
Note: xx = Voltage
309
Revised: June 21, 2011 04:14 PM
©2011 Littelfuse, Inc
Teccor® brand Thyristors
Specifications are subject to change without notice.
Please refer to http://www.littelfuse.com for current information.
65 / 70 Amp Standard SCRs
Sxx65x & Sxx70x Series
Soldering Parameters
Reflow Condition 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) 217°C
- Temperature (tL)60 – 150 seconds
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 Environmental Specifications
Test Specifications and Conditions
AC Blocking MIL-STD-750, M-1040, Cond A Applied
Peak AC voltage @ 125°C for 1008 hours
Temperature Cycling
MIL-STD-750, M-1051,
100 cycles; -40°C to +150°C;
15-min dwell-time
Temperature/
Humidity
EIA / JEDEC, JESD22-A101
1008 hours; 320V - DC: 85°C;
85% rel humidity
High Temp Storage MIL-STD-750, M-1031,
1008 hours; 150°C
Low-Temp Storage 1008 hours; -40°C
Thermal Shock
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
Autoclave
EIA / JEDEC, JESD22-A102
168 hours (121°C at 2 ATMs) and
100% R/H
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
Terminal Finish 100% Matte Tin-plated
Body UL recognized epoxy meeting ammability
classification 94V-0
Lead Material Copper Alloy
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.
Time
Temperature
TP
TL
TS(max)
TS(min)
25
tP
tL
tS
time to peak temperature
Preheat
P
r
e
h
eat
Ramp-upRamp-up
Ramp-down
R
am
p
-
do
310
Revised: June 21, 2011 04:14 PM
©2011 Littelfuse, Inc
Teccor® brand Thyristors
Specifications are subject to change without notice.
Please refer to http://www.littelfuse.com for current information.
65 / 70 Amp Standard SCRs
Sxx65x & Sxx70x Series
Dimensions – TO-218X (W Package) — Non-Isolated Mounting Tab
Dimensions – TO-218AC (K Package) — Isolated Mounting Tab
Dimension Inches Millimeters
Min Max Min Max
A 0.810 0.835 20.57 21.21
B 0.610 0.630 15.49 16.00
C 0.178 0.188 4.52 4.78
D 0.055 0.070 1.40 1.78
E 0.487 0.497 12.37 12.62
F 0.635 0.655 16.13 16.64
G0.022 0.029 0.56 0.74
H0.075 0.095 1.91 2.41
J 0.575 0.625 14.61 15.88
K 0.256 0.264 6.50 6.71
L 0.220 0.228 5.58 5.79
M 0.080 0.088 2.03 2.24
N 0.169 0.177 4.29 4.49
P 0.034 0.042 0.86 1.07
R 0.113 0.121 2.87 3.07
S 0.086 0.096 2.18 2.44
T 0.156 0.166 3.96 4.22
U 0.164 0.165 4.10 4.20
V 0.603 0.618 15.31 15.70
W 0.000 0.005 0.00 0.13
X 0.003 0.012 0.07 0.30
Y 0.028 0.032 0.71 0.81
Z 0.085 0.095 2.17 2.42
G
R
YH
D
C
K
B
A
EF
N
T
MP
J
L
S
V
U (diameter)
WX
CATHODE
ANODE
ANODE
Tc
Measurement
Point
GATE
Note: Maximum torque to
be applied to mounting tab
is 8 in-lbs. (0.904 Nm).
Z
Dimension Inches Millimeters
Min Max Min Max
A 0.810 0.835 20.57 21.21
B 0.610 0.630 15.49 16.00
C 0.178 0.188 4.52 4.78
D 0.055 0.070 1.40 1.78
E 0.487 0.497 12.37 12.62
F 0.635 0.655 16.13 16.64
G0.022 0.029 0.56 0.74
H0.075 0.095 1.91 2.41
J 0.575 0.625 14.61 15.88
K 0.211 0.219 5.36 5.56
L 0.422 0.437 10.72 11. 10
M 0.058 0.068 1.47 1.73
N 0.045 0.055 1. 14 1.40
P 0.095 0.115 2.41 2.92
Q 0.008 0.016 0.20 0.41
R 0.008 0.016 0.20 0.41
U 0.164 0.165 4.10 4.20
W 0.085 0.095 2.17 2.42
C
D
H
G
F
B
A
E
Tc Measurement Point
U (diameter)
P
GATE
J
ANODE
CATHODE
M
N
K
L
R
Q
Note: Maximum torque
to be applied to mounting
tab is 8 in-lbs. (0.904 Nm).
W
311
Revised: June 21, 2011 04:14 PM
©2011 Littelfuse, Inc
Teccor® brand Thyristors
Specifications are subject to change without notice.
Please refer to http://www.littelfuse.com for current information.
65 / 70 Amp Standard SCRs
Sxx65x & Sxx70x Series
Dimensions – TO-218X (J Package) — Isolated Mounting Tab Common with Center Lead
Dimension Inches Millimeters
Min Max Min Max
A 0.810 0.835 20.57 21.21
B 0.610 0.630 15.49 16.00
C 0.178 0.188 4.52 4.78
D 0.055 0.070 1.40 1.78
E 0.487 0.497 12.37 12.62
F 0.635 0.655 16.13 16.64
G0.022 0.029 0.56 0.74
H0.075 0.095 1.91 2.41
J 0.575 0.625 14.61 15.88
K 0.256 0.264 6.50 6.71
L 0.220 0.228 5.58 5.79
M 0.080 0.088 2.03 2.24
N 0.169 0.177 4.29 4.49
P 0.034 0.042 0.86 1.07
R 0.113 0.121 2.87 3.07
S 0.086 0.096 2.18 2.44
T 0.156 0.166 3.96 4.22
U 0.164 0.165 4.10 4.20
V 0.603 0.618 15.31 15.70
W 0.000 0.005 0.00 0.13
X 0.003 0.012 0.07 0.30
Y 0.028 0.032 0.71 0.81
Z 0.085 0.095 2.17 2.42
Product Selector
Part Number Voltage Gate Sensitivity Type Package
400V 600V 800V 1000V
Sxx65K X X X X 50mA Standard SCR TO-218AC
Sxx65J X X X 50mA Standard SCR TO-218X
Sxx70W X X X 50mA Standard SCR TO-218X
Note: xx = Voltage
Packing Options
Part Number Marking Weight Packing Mode Base Quantity
Sxx65KTP Sxx65K 4.40g Tube 250 (25 per tube)
Sxx65JTP Sxx65J 5.23g Tube 250 (25 per tube)
Sxx70WTP Sxx70W 5.23g Tube 250 (25 per tube)
Note: xx = Voltage
G
R
YH
D
C
K
B
A
EF
N
T
MP
J
L
S
V
U (diameter)
WX
CATHODE
Tc
Measurement
Point
GATE
Note: Maximum torque to
be applied to mounting tab
is 8 in-lbs. (0.904 Nm).
Z
ANODE
312
Revised: June 21, 2011 04:14 PM
©2011 Littelfuse, Inc
Teccor® brand Thyristors
Specifications are subject to change without notice.
Please refer to http://www.littelfuse.com for current information.
65 / 70 Amp Standard SCRs
Sxx65x & Sxx70x Series
Part Numbering System Part Marking System
81
DEVICE TYPE
S: SCR
xx: Lead Form Option
PACKAGE TYPE
K: TO-218AC (Isolated)
W: TO-218X (Non-isolated)
J: TO-218X (Isolated)
CURRENT RATING
Lead Form Dimensions
65: 65A
70: 70A
VOLTAGE RATING
40: 400V
60: 600V
80: 800V
K0: 1000V
SENSITIVITY & TYPE
S6065K
[blank]: 50mA
TO-218AC - (K Package)
TO-218X - (W Package)
TO-218X - (J Package)
®YMLXX
S6065K
