©2004 Littelfuse, Inc. M2 - 1 http://www.littelfuse.com
Thyristor Product Catalog +1 972-580-7777
Lead Form Dimensions
M2
The TO-202AB, TO-220AB, and TO-92 package configurations,
because of their unique design, can be mounted in a variety of
methods, depending upon heat sink requirements and circuit
packaging methods. Any of the derived types shown in this sec-
tion are available as standard parts direct from the factory. Cus-
tom package variations are available. Consult the factory for
more information.
To designate lead form options, simply indicate the type number
at the end of the Teccor standard part number.
Example: Q2004F312 (Signifies Type 12)
Note: When ordering a TO-202 F package, include a 1 for stan-
dard full tab package. When ordering anything other than full tab,
remove the 1 and add the Lead Form Type.
See “Description of Part Numbers” in the Product Selection
Guide of this catalog for a complete description of Teccor part
numbers.
Lead Bending Specifications
Leads may be bent easily and may be bent to any desired angle,
provided that the bend is made at a minimum 0.063" (0.1 for
TO-218) away from the package body with a minimum radius of
0.032". DO-15X device leads may be bent with a minimum radius
of 0.050", and DO-35 device leads may be bent with a minimum
radius of 0.028". Leads should be held firmly between the pack-
age body and the bend, so that strain on the leads is not trans-
mitted to the package body.
When bending leads in the plane of the leads (spreading), bend
only the narrow part.
Sharp angle bends should be done only once, as repetitive bend-
ing will fatigue and break the leads.
M2
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+1 972-580-7777 Thyristor Product Catalog
Lead Form Dimensions Data Sheets
TO-202AB Type 11 — F Package
TO-202AB Type 12 — F Package
TO-202AB Type 2 — F Package
TO-202AB Type 21 — F Package
Dimension
Inches Millimeters
MIN MAX MIN MAX
A0.080 0.120 2.03 3.05
B0.301 0.361 7.65 9.17
C0.080 0.120 2.03 3.05
Dimension
Inches Millimeters
MIN MAX MIN MAX
A0.435 0.495 11.05 12.57
B0.120 0.160 3.05 4.06
Tab Common to
MT2 / Anode
MT1 / Cathode
MT2 / Anode
Gate
A
B
C
MT2 / Anode
Tab Common
to MT2 / Anode
MT1 / Cathode
MT2 / Anode
Gate
A
B
Dimension
Inches Millimeters
MIN MAX MIN MAX
A0.240 0.260 6.100 6.60
B0.030 0.050 0.762 1.27
Dimension
Inches Millimeters
MIN MAX MIN MAX
A0.030 0.050 0.762 1.27
B0.240 0.260 6.100 6.60
C0.080 0.120 2.030 3.05
D0.301 0.361 7.650 9.17
E0.080 0.120 2.030 3.05
A
MT1 / Cathode
MT2 / Anode
Gate
B
MT1 / Cathode
MT2 / Anode
Gate
C
D
E
MT2 /
Anode
A
B
©2004 Littelfuse, Inc. M2 - 3 http://www.littelfuse.com
Thyristor Product Catalog +1 972-580-7777
Data Sheets Lead Form Dimensions
TO-202AB Type 23 — F Package
Sidac Only
TO-202AB Type 26 — F Package
TO-202AB Type 3 — F Package
Non-isolated
TO-202AB Type 32 — F Package
Non-isolated
Dimension
Inches Millimeters
MIN MAX MIN MAX
A0.240 0.260 6.100 6.60
B0.030 0.050 0.762 1.27
C0.030 0.050 0.762 1.27
Dimension
Inches Millimeters
MIN MAX MIN MAX
A0.240 0.260 6.100 6.60
B0.030 0.050 0.762 1.27
C0.050 0.070 0.127 1.78
D0.095 0.105 2.410 2.67
E0.172 0.202 4.370 5.13
MT1 / Pin 1
MT2 / Pin 2
C
A
B
Gate
A
MT2 / Anode
MT1 / Cathode
B
E
C
D
Dimension
Inches Millimeters
MIN MAX MIN MAX
A0.030 0.050 0.762 1.27
B0.645 0.705 16.380 17.91
Dimension
Inches Millimeters
MIN MAX MIN MAX
A0.030 0.050 0.762 1.27
B0.435 0.495 11.050 12.57
C0.120 0.160 3.050 4.06
MT2 / Anode
MT1 / Cathode
A
B
Gate
MT2 / Anode
MT1 / Cathode
Gate
B
C
A
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+1 972-580-7777 Thyristor Product Catalog
Lead Form Dimensions Data Sheets
TO-202AB Type 4 — F Package
TO-202AB Type 41 — F Package
TO-202AB Type 43 — F Package
Surface Mount
TO-220 Type 51 — R or L Package
Replaces RCA 6249
Dimension
Inches Millimeters
MIN MAX MIN MAX
A0.240 0.260 6.100 6.600
B0.114 0.134 2.900 3.400
C0.023 0.029 0.584 0.737
D0.030 0.050 0.762 1.270
E0.297 0.327 7.540 8.310
F0.030 0.050 0.765 1.270
G0.297 0.327 7.540 8.310
Dimension
Inches Millimeters
MIN MAX MIN MAX
A0.380 0.420 9.65 10.67
B0.180 0.220 4.57 5.59
ABC
MT2 / Anode
D
EF
G
Gate
MT1 / Cathode
MT2 / Anode
Gate
MT1 / Cathode
B
A
Dimension
Inches Millimeters
MIN MAX MIN MAX
A0.030 0.050 0.762 1.270
B0.680 0.760 17.270 19.300
C0.110 0.130 2.800 3.300
D0.080 0.100 2.030 2.540
E0.080 0.100 2.030 2.540
F0.110 0.130 2.800 3.300
G0.000 0.013 0.000 0.330
Dimension
Inches Millimeters
MIN MAX MIN MAX
A0.320 0.340 8.13 8.64
B0.190 4.83
C0.795 0.850 20.19 21.59
MT2 / Anode
A
Gate
MT1 / Cathode
B
F
E
D
C
0.150
0.450
0.150
0.050
Five
PLCs
Pad Outline
G
A
C
MT2 / Anode
Gate
B
Ref Only
Mounting Tab
Common to
MT2 / Anode
for Non-isolated
R Package
MT1 / Cathode
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Thyristor Product Catalog +1 972-580-7777
Data Sheets Lead Form Dimensions
TO-220 Type 52 — R or L Package
TO-220 Type 53 — R or L Package
TO-220 Type 54 — R Package
Replaces Motorola Form 4, G.E. Type 4, RCA 6206
TO-220 Type 55 — R or L Package
Replaces G.E. Type 5
Dimension
Inches Millimeters
MIN MAX MIN MAX
A0.169 0.189 4.29 4.80
B0.040 0.060 1.02 1.52
C0.250 6.35
D0.110 0.170 2.79 4.32
Dimension
Inches Millimeters
MIN MAX MIN MAX
A0.175 4.45
B0.542 0.582 13.77 14.78
C0.167 0.207 4.24 5.26
D0.355 0.395 9.02 10.03
AC
Gate / Trigger
MT2 / Anode
MT1 / Cathode
B
Mounting Tab
Common to
MT2 / Anode
for Non-isolated
R Package
D
Mounting Tab
Common to
MT2 / Anode
for Non-isolated
R Package
MT1 / Cathode
MT2 / Anode
Gate / Trigger
MT2 / Anode
A
D
C
B
Dimension
Inches Millimeters
MIN MAX MIN MAX
A0.040 0.070 1.02 1.78
B0.500 12.70
Dimension
Inches Millimeters
MIN MAX MIN MAX
A0.065 0.095 1.65 2.41
B0.353 0.433 8.97 11.00
C0.115 0.130 2.92 3.30
A
MT2 / Anode
Gate
MT1 / Cathode
B
Mounting Tab
Common to
MT2 / Anode
for Non-isolated
R Package
MT1 / Cathode
MT2 / Anode
Gate / Trigger
C
B
A
MT2 / Anode
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+1 972-580-7777 Thyristor Product Catalog
Lead Form Dimensions Data Sheets
TO-220 Type 56 — R or L Package
Replaces G.E. Type 6, Motorola Lead Form 3, RCA 6221
TO-220 Type 57 — R Package
Similar to TO-66, Gate-Cathode Reversed
TO-220 Type 58 — R or L Package
TO-220 Type 59 — R or L Package
Dimension
Inches Millimeters
MIN MAX MIN MAX
A0.570 0.590 14.48 14.99
B0.120 0.130 3.05 3.30
C0.172 0.202 4.37 5.13
Dimension
Inches Millimeters
MIN MAX MIN MAX
A0.040 0.070 1.02 1.78
B0.570 0.590 14.48 14.99
C0.340 0.422 8.64 10.72
Mounting Tab
Common to
MT2 / Anode
for Non-isolated
R Package
MT1 / Cathode
A
C
MT2 / Anode
Gate / Trigger
MT2 / Anode
B
MT1 / Cathode C
Gate
MT2 / Anode
B
A
Dimension
Inches Millimeters
MIN MAX MIN MAX
A0.175 4.45
B0.542 0.582 13.77 14.78
C0.167 0.207 4.24 5.26
D0.355 0.395 9.02 10.03
Dimension
Inches Millimeters
MIN MAX MIN MAX
A0.685 0.725 17.40 18.42
B0.558 0.598 14.17 15.19
C0.375 9.53
D0.250 6.35
Mounting Tab
Common to
MT2 / Anode
for Non-isolated
R Package
MT1 / Cathode Gate
MT2 / Anode
A
D
C
B
MT2 / Anode
Mounting Tab
Common to
MT2 / Anode
for Non-isolated
R Package
MT1 / Cathode Gate
D
C
B
MT2 / Anode
MT2 /
Anode
A
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Thyristor Product Catalog +1 972-580-7777
Data Sheets Lead Form Dimensions
TO-220 Type 65 — R or L Package
Replaces RCA 6210
TO-220 Type 67 — R Package
Surface Mount
TO-220 Type 68 — R or L Package
Surface Mount
TO-92 Type 70 — E Package
Sidac Only
Dimension
Inches Millimeters
MIN MAX MIN MAX
A0.550 0.580 13.97 14.73
B0.820 0.860 20.83 21.84
C0.530 0.570 13.46 14.48
D0.080 0.120 2.03 3.05
Dimension
Inches Millimeters
MIN MAX MIN MAX
A0.780 0.850 19.05 21.59
B0.080 0.100 2.03 2.54
C0.110 0.130 2.79 3.30
D0.013 0.33
MT1 / Cathode
MT2 / Anode
A
B
Mounting Tab
Common to
MT2 / Anode
for Non-isolated
R Package
Gate / Trigger MT2 / Anode
C
D
MT1 / Cathode
Gate
BC
A
D
MT2 / Anode
0.460
0.270
0.170
0.150
0.050 TYP
0.155
0.230 0.115
0.860
Pad Outline
This Footprint
Optional
Dimension
Inches Millimeters
MIN MAX MIN MAX
A0.780 0.850 19.05 21.59
B0.080 0.100 2.03 2.54
C0.110 0.130 2.79 3.30
D0.013 0.33
Dimension
Inches Millimeters
MIN MAX MIN MAX
A0.060 1.52
B0.50 12.7
MT1 / Cathode
Gate / Trigger
MT2 / Anode
BC
A
D
Mounting Tab
Common to
MT2 / Anode
for Non-isolated
R Package
0.460
0.270
0.170
.150
0.860
0.050 TYP0.045
0.055 TYP
0.230
0.115
Pad Outline
This Footprint
Optional
A
MT1 / Pin 1
B
MT2 / Pin 3
Flat
Side
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+1 972-580-7777 Thyristor Product Catalog
Lead Form Dimensions Data Sheets
TO-92 Type 73 — E Package
Surface Mount
TO-92 Type 75 — E Package
Replaces TO-5 Pinout
TO-218 Type 81 — K, M, J, or W Packages
TO-218 Type 82 — M and W Packages
Dimension
Inches Millimeters
MIN MAX MIN MAX
A0.000 0.010 0.000 0.254
B0.052 0.067 1.320 1.700
C0.295 0.315 7.490 8.000
Dimension
Inches Millimeters
MIN MAX MIN MAX
A0.400 10.16
B0.500 12.70
C0.080 0.120 2.03 3.05
D0.045 0.085 1.14 2.16
E0.180 0.220 4.57 5.59
F0.080 0.120 2.03 3.05
A
B
CMT2 / Anode/ Pin 3
Gate / Pin 2
MT1 / Cathode / Pin 1
0.034
TYP 0.016
TYP
0.08
Pad Outline
MT2 / Anode / Pin 3
F
B
AGate / Pin 2
Flat Side
D TYP
E
C
MT1 / Cathode / Pin 1
Gate / Pin 2
Dimension
Inches Millimeters
MIN MAX MIN MAX
A0.080 0.120 2.03 3.05
B0.580 0.640 14.73 16.26
Dimension
Inches Millimeters
MIN MAX MIN MAX
A0.095 2.41
B0.080 0.120 2.03 3.05
C0.580 0.640 14.73 16.26
B
MT1 / Cathode
A
Gate
Mounting Tab Common to
MT2 / Anode on W Package
MT2 / Anode
C
MT1 / Cathode
B
Gate
Mounting Tab
Common to
MT2 / Anode
A
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Thyristor Product Catalog +1 972-580-7777
Data Sheets Lead Form Dimensions
DO-35 Type 91 — Y Package
DO-35 Type 92 — Y Package
DO-35 Type 93 — Y Package
Surface Mount
Dimension
Inches Millimeters
MIN MAX MIN MAX
A0.519 0.521 12.18 13.23
B0.140 0.172 3.56 4.37
Dimension
Inches Millimeters
MIN MAX MIN MAX
A0.610 0.630 15.49 16.00
B0.140 0.172 3.56 4.37
A
B
A
B
Dimension
Inches Millimeters
MIN MAX MIN MAX
A0.020 0.060 0.508 1.52
B0.290 0.310 7.370 7.87
C0.370 0.430 9.400 10.92
D0.040 0.060 1.020 1.52
B
C
A
D
Notes
