279
Revised: June 24, 2011 04:57 PM
©2011 Littelfuse, Inc
Teccor® brand Thyristors
Specifications are subject to change without notice.
Please refer to http://www.littelfuse.com for current information.
35 Amp Standard SCRs
Sxx35x Series
Sxx35x 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
500 A
Schematic Symbol
Main Features
Symbol Value Unit
IT(RMS) 35 A
VDRM /VRRM 400 to 1000 V
IGT 40 mA
Absolute Maximum Ratings
Symbol Parameter Test Conditions Value Unit
IT(RMS) RMS on-state current TC = 95°C 35 A
IT(AV) Average on-state current TC = 95°C 22.0 A
ITSM Peak non-repetitive surge current
single half cycle; f = 50Hz;
TJ (initial) = 25°C 425
A
single half cycle; f = 60Hz;
TJ (initial) = 25°C 500
I2t I2t Value for fusing tp = 8.3 ms 1035 A2s
di/dt Critical rate of rise of on-state current f = 60Hz ; TJ = 125°C 150 A/μs
IGM Peak gate current TJ = 125°C 3.5 A
PG(AV) Average gate power dissipation TJ = 125°C 0.8 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
280
Revised: June 24, 2011 04:57 PM
©2011 Littelfuse, Inc
Teccor® brand Thyristors
Specifications are subject to change without notice.
Please refer to http://www.littelfuse.com for current information.
35 Amp Standard SCRs
Sxx35x Series
Electrical Characteristics (TJ = 25°C, unless otherwise specified)
Symbol Test Conditions Value Unit
IGT VD = 12V; RL = 30Ω
MAX. 40
mA
MIN. 5
VGT MAX. 1. 5 V
dv/dt
VD = VDRM; gate open; TJ = 100°C
400V
MIN.
450
V/μs
600V
425
800V
400
1000V
200
VD = VDRM; gate open; TJ = 125°C
400V
350
600V
325
800V
300
VGD VD = VDRM; RL = 3.3 kΩ; TJ = 125°C MIN. 0.2 V
IHIT = 400mA (initial) MAX. 50 mA
tq(1) MAX. 35 μs
tgt IG = 2 x IGT; PW = 15µs; IT = 70A TYP. 2 μs
Notes :
(1) IT=2A; tp=50µs; dv/dt=5V/µs; di/dt=-30A/µs
Static Characteristics
Symbol Test Conditions Value Unit
VTM IT = 70A; tp = 380μs MAX. 1. 8 V
IDRM / IRRM VDRM / VRRM
TJ = 25°C
400 – 600V
MAX.
10
μA
800 – 1000V 20
TJ = 100°C
400 – 600V 1000
800V 1500
1000V 3000
TJ = 125°C
400 – 600V 2000
800V 3000
Thermal Resistance
Symbol Parameter Value Unit
Rθ(J-C) Junction to case (AC) 0.7 °C/W
281
Revised: June 24, 2011 04:57 PM
©2011 Littelfuse, Inc
Teccor® brand Thyristors
Specifications are subject to change without notice.
Please refer to http://www.littelfuse.com for current information.
35 Amp Standard SCRs
Sxx35x Series
Figure 1: Normalized DC Gate Trigger Current
vs. Junction Temperature
Figure 2: Normalized DC Gate Trigger Voltage
vs. Junction Temperature
125
0.0
0.5
1.0
1.5
2.0
-40-15 10 35 60 85 110
Junction Temperature (TJ) -- (°C)
Ratio of I
GT
/ I
GT
(T
J
= 25°C)
Figure 3: Normalized DC Holding Current
vs. Junction Temperature
Figure 4: On-State Current vs. On-State
Voltage (Typical)
125
0.0
0.5
1.0
1.5
2.0
-40-15 10 35 60 85 110
Junction Temperature (TJ) -- (°C)
Ratio of VGT / VGT (TJ = 25°C)
125
0.0
0.5
1.0
1.5
2.0
-40-15 10 35 60 85 110
Junction Temperature (T
J
) -- (°C)
Ratio of IH / IH (TJ = 25°C)
T
J
= 25°C
0
20
40
60
80
100
120
0.70.8 0.91.0 1.11.2 1.31.4 1.51.6
Instantaneous On-state Voltage (v
T
) Volts
Instantaneous On-state Current (i
T
) Amps
Figure 5: Power Dissipation (Typical)
vs. RMS On-State Current
Figure 6: Maximum Allowable Case Temperature
vs. RMS On-State Current
0
5
10
15
20
25
30
0510 15 20 25 30 35
RMS On-State Current [IT(RMS)] - (Amps)
Average On-State Power Dissipation
[PD(AV)] - (Watts)
80
85
90
95
100
105
110
115
120
125
130
0510 15 20 25 30 35 40
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 180°
RMS On-State Current [I
T(RMS)
] - Amps
Maximum Allowable Case
Temperature (T
C
) - °C
282
Revised: June 24, 2011 04:57 PM
©2011 Littelfuse, Inc
Teccor® brand Thyristors
Specifications are subject to change without notice.
Please refer to http://www.littelfuse.com for current information.
35 Amp Standard SCRs
Sxx35x Series
10
100
1000
110100 1000
Surge Current Duration -- Full Cycles
Peak Surge (Non-repetitive)
On-state Current (ITSM) Amps
Figure 7: Maximum Allowable Case Temperature vs.
Average On-State Current
105
80
85
90
95
100
110
115
120
125
130
0510 15 20 25
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 180°
Average On-State Current [IT(AVE)] - Amps
Maximum Allowable Case
Temperature (TC) - °C
Figure 8: Peak Capacitor Discharge Current
Figure 9: Peak Capacitor Discharge Current Derating
10
100
1000
0.5 1.
01
0.0 50.0
Pulse Current Duration (tw) - ms
Peak Discharge Current (ITM) - Amps
ITRM
tW
0.0
0.2
0.4
0.6
0.8
1.0
1.2
0255075100 125 150
Normalized Peak Current
Case Temperature (T
C
) - °C
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.
283
Revised: June 24, 2011 04:57 PM
©2011 Littelfuse, Inc
Teccor® brand Thyristors
Specifications are subject to change without notice.
Please refer to http://www.littelfuse.com for current information.
35 Amp Standard SCRs
Sxx35x 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 Material UL recognized epoxy meeting ammability
classification 94V-0
Lead Material Copper Alloy
Design Considerations
Careful selection of the correct device for the applications
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
284
Revised: June 24, 2011 04:57 PM
©2011 Littelfuse, Inc
Teccor® brand Thyristors
Specifications are subject to change without notice.
Please refer to http://www.littelfuse.com for current information.
35 Amp Standard SCRs
Sxx35x Series
Dimensions – TO- 218X (J Package) — 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
B0.610 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
F0.635 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
K0.256 0.264 6.50 6.71
L 0.220 0.228 5.58 5.79
M 0.080 0.088 2.03 2.24
N0.169 0.177 4.29 4.49
P 0.034 0.042 0.86 1.07
R 0.113 0.121 2.87 3.07
S0.086 0.096 2.18 2.44
T0.156 0.166 3.96 4.22
U0.164 0.165 4.10 4.20
V0.603 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
Tc
Measurement
Point
GATE
Note: Maximum torque to
be applied to mounting tab
is 8 in-lbs. (0.904 Nm).
Z
ANODE
Dimension Inches Millimeters
Min Max Min Max
A 0.810 0.835 20.57 21.21
B0.610 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
F0.635 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
U0.164 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
285
Revised: June 24, 2011 04:57 PM
©2011 Littelfuse, Inc
Teccor® brand Thyristors
Specifications are subject to change without notice.
Please refer to http://www.littelfuse.com for current information.
35 Amp Standard SCRs
Sxx35x Series
Product Selector
Part Number Voltage Gate Sensitivity Type Package
400V 600V 800V 1000V
Sxx35K X X X X 40mA Standard SCR TO-218AC
Sxx35J X X X 40mA Standard SCR TO-218X
Note: xx = Voltage
Packing Options
Part Number Marking Weight Packing Mode Base Quantity
Sxx35KTP Sxx35K 4.40g Tube 250 (25 per tube)
Sxx35JTP Sxx35J 5.23g Tube 250 (25 per tube)
Note: xx = Voltage
Part Numbering System Part Marking System
TO-218 AC (K Package)
TO-218 X – (J Package)
®YMLXX
S6035K
81
DEVICE TYPE
S: SCR
xx: Lead Form Option
PACKAGE TYPE
K: TO-218AC (Isolated)
J: TO-218X (Isolated)
CURRENT RATING
Lead Form Dimensions
35: 35A
VOLTAGE RATING
40: 400V
60: 600V
80: 800V
K0: 1000V
SENSITIVITY & TYPE
S6035K
[blank]: 40mA