279
Revised: 09/23/13
©2013 Littelfuse, Inc
Specifications are subject to change without notice.
Teccor® brand Thyristors
12 Amp Standard SCRs
Sxx12x Series
Sxx12x 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
t3P)4DPNQMJBOU
t(MBTToQBTTJWBUFE
junctions
t7PMUBHFDBQBCJMJUZVQ
to 1000 V
t4VSHFDBQBCJMJUZVQUP
120 A
Main Features
Symbol Value Unit
IT(RMS) 12 A
VDRM/VRRM 400 to 1000 V
IGT 20 mA
Schematic Symbol
Absolute Maximum Ratings
Symbol Parameter Test Conditions Value Unit
IT(RMS) RMS on-state current
Sxx12R
Sxx12D
Sxx12V
TC = 105°C 12 A
IT(AV) Average on-state current
Sxx12R
Sxx12D
Sxx12V
TC =105°C 7.6 A
ITSM Peak non-repetitive surge current
single half cycle; f = 50Hz;
TJ (initial) = 25°C 100
A
single half cycle; f = 60Hz;
TJ (initial) = 25°C 120
I2tI
2t Value for fusing tp = 8.3 ms 60 A2s
di/dt Critical rate of rise of on-state current f = 60Hz; TJ = 125°C 100 A/s
IGM Peak gate current TJ = 125°C 2A
PG(AV) Average gate power dissipation TJ = 125°C 0.5 W
Tstg Storage temperature range -40 to 150 °C
TJOperating junction temperature range -40 to 125
Note: xx = voltage
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.
A
K
G
280
Revised: 09/23/13
©2013 Littelfuse, Inc
Specifications are subject to change without notice.
Teccor® brand Thyristors
12 Amp Standard SCRs
Sxx12x Series
Electrical Characteristics (TJ = 25°C, unless otherwise specified)
Symbol Test Conditions Value Unit
IGT
VD = 12V RL = 60
MAX. 20 mA
VGT
MIN. 1
MAX. 1.5 V
dv/dt
VD = VDRM; gate open; TJ = 100°C
400V
MIN.
350
V/s
600V
300
800V
250
1000V
100
VD = VDRM; gate open; TJ = 125°C
400V
250
600V
225
800V
200
VGD VD = VDRM RL = 3.3 k TJ = 125°C MIN. 0.2 V
IHIT = 200mA (initial) MAX. 40 mA
tqIT = 2A; tp = 50µs; dv/dt = 5V/µs; di/dt = 30A/µs MAX. 35 s
tgt IG = 2 x IGT PW = 15µs IT = 20A TYP. 2 s
Static Characteristics
Symbol Test Conditions Value Unit
VTM IT = 24A; tp = 380 µs MAX. 1.6 V
IDRM / IRRM VDRM = VRRM
TJ = 25°C o7
MAX.
10
A
o7 20
TJ = 100°C o7 500
1000V 3000
TJ = 125°C o7 1000
Thermal Resistances
Symbol Parameter Value Unit
R(J-C) Junction to case (AC)
Sxx12R 1.5
°C/WSxx12V 1.6
Sxx12D 1.4
R(J-A) Junction to ambient Sxx12R 40 °C/W
Sxx12V 70
Note: xx = voltage
281
Revised: 09/23/13
©2013 Littelfuse, Inc
Specifications are subject to change without notice.
Teccor® brand Thyristors
12 Amp Standard SCRs
Sxx12x 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 -15 10 35 60 85 100 125
Junction Temperature (T
J
) - (°C)
Ratio of I
GT
/ I
GT
(T
J
= 25°C)
0.0
0.5
1.0
1.5
2.0
-40 -15 10 35 60 85 110 125
Junction Temperature (TJ) - (°C)
Ratio of VGT / VGT (TJ = 25°C)
Figure 5: Power Dissipation (Typical)
vs. RMS On-State Current
0.0
0.5
1.0
1.5
2.0
-40 -15 10 35 60 85 110 125
Junction Temperature (TJ ) - (°C)
Ratio of IH / IH (TJ = 25°C)
Figure 3: Normalized DC Holding Current
vs. Junction Temperature
Figure 4: On-State Current vs. On-State
Voltage (Typical)
TJ = 25°C
0
10
20
30
40
50
60
0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6
Instantaneous On-state Voltage (vT) – Volts
Instantaneous On-state
Current (i
T
) – Amps
0
2
4
6
8
10
12
0 2 4 6 8 10 12
RMS On-State Current [I T(RMS)] - (Amps)
Average On-State Power
Dissipation [PD(AV)] - (Watts)
282
Revised: 09/23/13
©2013 Littelfuse, Inc
Specifications are subject to change without notice.
Teccor® brand Thyristors
12 Amp Standard SCRs
Sxx12x Series
Figure 6: Maximum Allowable Case Temperature
vs. RMS On-State Current
Figure 7: Maximum Allowable Case Temperature
vs. Average On-State Current
95
100
105
110
115
120
125
130
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 180°
0 1 2 3 4 5 6 7 8
Average On-State Current [IT(AVE)] - Amps
Maximum Allowable Case
Temperature (TC) - °C
95
100
105
110
115
120
125
130
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 180°
0 2 4 6 8 10 12 14
RMS On-State Current [IT(RMS)] - Amps
Maximum Allowable
Case Temperature (TC)- °C
Figure 8: Maximum Allowable Ambient Temperature
vs. RMS On-State Current
0
20
40
60
80
100
120
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 180°
FREE AIR RATING
Sxx12V
Sxx12R
0.0 0.5 1.0 1.5 2.0 2.5
RMS On-State Current [IT(RMS)] - Amps
Maximum Allowable Ambient
Temperature (TA) - °C
Figure 9: Maximum Allowable Ambient Temperature
vs. Average On-State Current
0
20
40
60
80
100
120
5.10.15.00.0
CURRENT WAVEFORM: Sinusoidal
LOAD: Resistive or Inductive
CONDUCTION ANGLE: 180°
FREE AIR RATING
Sxx12R
Sxx12V
Average On-State Current [IT(AVE)] - Amps
Maximum Allowable Ambient
Temperature (T
A
) - °C
Note: xx = voltage
Figure 10: Peak Capacitor Discharge Current
10
100
1000
0.050.520.55.0
Peak Discharge Current (ITM) - Amps
Pulse Current Duration (tw) - ms
ITRM
tW
Figure 11: Peak Capacitor Discharge Current Derating
0.0
0.2
0.4
0.6
0.8
1.0
1.2
0 25 50 75 100 125 150
Normalized Peak Current
Case Temperature (TC) - °C
283
Revised: 09/23/13
©2013 Littelfuse, Inc
Specifications are subject to change without notice.
Teccor® brand Thyristors
12 Amp Standard SCRs
Sxx12x Series
1
10
100
1000
0001001011
Peak Surge (Non-repetitive)
On-state Current (ITSM ) – Amps
Surge Current Duration - Full Cycles
Figure 12: 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.
Soldering Parameters
Reflow Condition 1Co'SFFBTTFNCMZ
Pre Heat
- Temperature Min (Ts(min))150°C
- Temperature Max (Ts(max))200°C
- Time (min to max) (ts)oTFDT
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)oTFDPOET
Peak Temperature (TP)260+0/-5 °C
Time within 5°C of actual peak
Temperature (tp)oTFDPOET
Ramp-down Rate 5°C/second max
Time 25°C to peak Temperature (TP)8 minutes Max.
Do not exceed 280°C
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: 09/23/13
©2013 Littelfuse, Inc
Specifications are subject to change without notice.
Teccor® brand Thyristors
12 Amp Standard SCRs
Sxx12x Series
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 dwell-
time 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 flammability
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.
Dimensions — TO-220AB (R-Package) — Non-Isolated Mounting Tab Common with Center Lead
Dimension Inches Millimeters
Min Max Min Max
A 0.380 0.420 9.65 10.67
B 0.105 0.115 2.67 2.92
C 0.230 0.250 5.84 6.35
D 0.590 0.620 14.99 15.75
E 0.142 0.147 3.61 3.73
F 0.110 0.130 2.79 3.30
G 0.540 0.575 13.72 14.61
H 0.025 0.035 0.64 0.89
J 0.195 0.205 4.95 5.21
K 0.095 0.105 2.41 2.67
L 0.060 0.075 1.52 1.91
M 0.085 0.095 2.16 2.41
N 0.018 0.024 0.46 0.61
O 0.178 0.188 4.52 4.78
P 0.045 0.060 1.14 1.52
R 0.038 0.048 0.97 1.22
K
J
A
H
G
B
F
E
C
D
L
R
T
C
MEASURING POINT
ANODE
O
P
N
M
.276
7. 0 1
.526
13.36
.320
8.13
AREA (REF.) 0.17 IN
2
NOTCH IN
GATE LEAD
TO ID.
NON-ISOLATED
TAB
GATECATHODE ANODE
Note: Maximum torque to
be applied to mounting tab
is 8 in-lbs. (0.904 Nm).
285
Revised: 09/23/13
©2013 Littelfuse, Inc
Specifications are subject to change without notice.
Teccor® brand Thyristors
12 Amp Standard SCRs
Sxx12x Series
Dimensions — TO-251AA (V/I-Package) — V/I-PAK Through Hole
Dimension Inches Millimeters
Min Typ Max Min Typ Max
A 0.040 0.044 0.050 1.02 1.11 1.27
B 0.235 0.242 0.245 5.97 6.15 6.22
C 0.350 0.361 0.375 8.89 9.18 9.53
D 0.205 0.208 0.213 5.21 5.29 5.41
E 0.255 0.262 0.265 6.48 6.66 6.73
F 0.027 0.031 0.033 0.69 0.80 0.84
G 0.087 0.090 0.093 2.21 2.28 2.36
H 0.085 0.092 0.095 2.16 2.34 2.41
I 0.176 0.180 0.184 4.47 4.57 4.67
J 0.018 0.020 0.023 0.46 0.51 0.58
K 0.038 0.040 0.044 0.97 1.01 1.12
L 0.018 0.020 0.023 0.46 0.52 0.58
P 0.042 0.047 0.052 1.06 1.20 1.32
Q 0.034 0.039 0.044 0.86 1.00 1.11
R 0.034 0.039 0.044 0.86 1.00 1.11
S 0.074 0.079 0.084 1.86 2.00 2.11
AREA: 0.040 IN
2
T
C
MEASURING POINT
GATE G
I
E
D
A
B
C
F
J
H
K
L
5.28
.208
5.34
.210
Anode
Cathode
Anode
P
Q
RS
Dimensions — TO-252AA (D-Package) — D-PAK Surface Mount
Dimension Inches Millimeters
Min Typ Max Min Typ Max
A 0.040 0.043 0.050 1.02 1.09 1.27
B 0.235 0.243 0.245 5.97 6.16 6.22
C 0.106 0.108 0.113 2.69 2.74 2.87
D 0.205 0.208 0.213 5.21 5.29 5.41
E 0.255 0.262 0.265 6.48 6.65 6.73
F 0.027 0.031 0.033 0.69 0.80 0.84
G 0.087 0.090 0.093 2.21 2.28 2.36
H 0.085 0.092 0.095 2.16 2.33 2.41
I 0.176 0.179 0.184 4.47 4.55 4.67
J 0.018 0.020 0.023 0.46 0.51 0.58
K 0.038 0.040 0.044 0.97 1.02 1.12
L 0.018 0.020 0.023 0.46 0.51 0.58
M 0.000 0.000 0.004 0.00 0.00 0.10
N 0.021 0.026 0.027 0.53 0.67 0.69
O 0°0°5°0°0°5°
P 0.042 0.047 0.052 1.06 1.20 1.32
Q 0.034 0.039 0.044 0.86 1.00 1.11
M
O
N
H
J
L
K
.118
3
.063
1.60
.071
1.80
.264
6.71
.264
6.71
.181
4.60
GATE
Anode
Cathode
Anode
T
C
MEASURING POINT
G
I
D
E
A
B
C
F
5.28
.208
5.34
.210
: 0.040 IN
2
AREA
P
Q
286
Revised: 09/23/13
©2013 Littelfuse, Inc
Specifications are subject to change without notice.
Teccor® brand Thyristors
12 Amp Standard SCRs
Sxx12x Series
Product Selector
Packing Options
Part Number Voltage Gate Sensitivity Type Package
400V 600V 800V 1000V
Sxx12R XXXX 20mA Sensitive SCR TO-220R
Sxx12V XXXX 20mA Standard SCR TO-251
Sxx12D XXXX 20mA Standard SCR TO-252
Note: xx = voltage
Part Number Marking Weight Packing Mode Base Quantity
Sxx12R Sxx12R 2.2 g Bulk 500
Sxx12RTP Sxx12R 2.2 g Tube 500 (50 per tube)
Sxx12DTP Sxx12D 0.3 g Tube 750 (75 per tube)
Sxx12DRP Sxx12D 0.3 g Embossed Carrier 2500
Sxx12VTP Sxx12V 0.4 g Tube 750 (75 per tube)
Note: xx = Voltage
0.512 (13.0)
Arbor Hole
Diameter
DC
XXXXXX
XXXXXX
DC
XXXXXX
DC
XXXXXX
XX
Gate Cathode
Anode
0.63
(16.0)
0.157
(4.0)
0.64
(16.3)
12.99
(330.0)
0.524
(13.3)
0.315
(8.0)
0.059 DIA
(1.5)
*
*
Cover tape
XX
XX
Direction of Feed
Dimensions
are in inches
(and millimeters).
TO-252 Embossed Carrier Reel Pack (RP) Specifications
Meets all EIA-481-2 Standards
Part Numbering System
Part Marking System
S60 12 R56
DEVICE TYPE
S: SCR
VOLTAGE RATING
40: 400V
60: 600V
80: 800V
K0: 1000V
CURRENT RATING
12: 12A
SENSITIVITY & TYPE
(blank): 20mA
PACKAGE TYPE
R: TO-220 Non-Isolated
V: TO-251 (V/I-Pak)
D: TO-252 (D-Pak)
LEAD FORM DIMENSIONS
xx: Lead Form Option
®
M
Y
S6012R
TO-220 AB - (R Package)
YMLDD ®
Date Code Marking
Y:Year Code
M: Month Code
L: Location Code
DD: Calendar Code
YMLDD ®
TO-251AA - (V Package)
TO-252AA - (D Package)
S6012DS6012D
Date Code Marking
Y:Year Code
M: Month Code
XXX: Lot Trace Code