258
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.
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 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.
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
G0.540 0.575 13.72 14.61
H0.025 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. 1 4 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. 01
.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).