Teccor® brand Thyristors Lead Form Dimensions The TO-218, 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 section are available as standard parts direct from the factory. Custom package variations are available. Consult the factory for more information. 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-15 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 package body and the bend, so that strain on the leads is not transmitted to the package body. To designate lead form options, simply indicate the type number at the end of the Teccor standard part number. Example: Q4008L465 (Signifies Type 65) When bending leads in the plane of the leads (spreading), bend only the narrow part. See “Description of Part Numbers” in the Product Selection Guide of this catalog for a complete description of Teccor part numbers. ©2008 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to http://www.littelfuse.com for current information. Sharp angle bends should be done only once, as repetitive bending will fatigue and break the leads. 351 Lead Form Dimensions Lead Dimensions Lead Form Dimensions Teccor® brand Thyristors Lead Form Dimensions TO-220 Type 51 — R or L Package TO-220 Type 53 — R or L Package Replaces RCA 6249 Mounting Tab Common to MT2 / Anode for Non-isolated R Package Mounting Tab Common to MT2 / Anode for Non-isolated R Package B C A MT1 / Cathode MT2 / Anode MT2 / Anode Gate / Trigger MT2 / Anode A B C Gate D Ref Only MT1 / Cathode Dimension Inches Dimension Millimeters Min Max A 0.320 0.340 B 0.190 C 0.795 Millimeters Max Min Max Min Max A 0.175 8.13 8.64 B 0.542 0.582 13.77 14.78 C 0.167 0.207 4.24 5.26 D 0.355 0.395 9.02 10.03 4.83 0.850 Inches Min 20.19 21.59 TO-220 Type 52 — R or L Package 4.45 TO-220 Type 54 — R Package Replaces Motorola Form 4, G.E. Type 4, RCA 6206 Mounting Tab Common to MT2 / Anode for Non-isolated R Package MT2 / Anode B C D A Gate / Trigger A MT2 / Anode Gate MT1 / Cathode B MT1 / Cathode Inches Dimension Min Millimeters Max Min Max A 0.169 0.189 4.29 4.80 B 0.040 0.060 1.02 1.52 C 0.250 D 0.110 Lead Form Dimensions Dimension 6.35 0.170 2.79 Inches Millimeters Min Max Min Max A 0.040 0.070 1.02 1.78 B 0.500 12.70 4.32 352 ©2008 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to http://www.littelfuse.com for current information. Teccor® brand Thyristors TO-220 Type 55 — R or L Package TO-220 Type 57 — R Package Replaces G.E. Type 5 Similar to TO-66, Gate-Cathode Reversed Mounting Tab Common to MT2 / Anode for Non-isolated R Package Lead Dimensions Lead Form Dimensions MT2 / Anode A B MT1 / Cathode MT2 / Anode Gate / Trigger B Gate A C MT1 / Cathode MT2 / Anode Dimension Inches C Millimeters Min Max Min Dimension Max Inches Millimeters Min Max Min Max 0.040 0.070 1.02 1.78 A 0.065 0.095 1.65 2.41 A B 0.353 0.433 8.97 11.00 B 0.570 0.590 14.48 14.99 C 0.115 0.130 2.92 3.30 C 0.340 0.422 8.64 10.72 TO-220 Type 56 — R or L Package TO-220 Type 58 — R or L Package Replaces G.E. Type 6, Motorola Lead Form 3, RCA 6221 Mounting Tab Common to MT2 / Anode for Non-isolated R Package Mounting Tab Common to MT2 / Anode for Non-isolated R Package B A A Gate / Trigger MT2 / Anode B MT2 / Anode MT1 / Cathode C Gate MT2 / Anode C MT2 / Anode D MT1 / Cathode Dimension Inches Dimension Millimeters Inches Min Millimeters Max Min Max Min Max Min Max A 0.175 A 0.570 0.590 14.48 14.99 B 0.542 0.582 13.77 14.78 B 0.120 0.130 3.05 3.30 C 0.167 0.207 4.24 5.26 C 0.172 0.202 4.37 5.13 D 0.355 0.395 9.02 10.03 ©2008 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to http://www.littelfuse.com for current information. 353 4.45 Lead Form Dimensions Teccor® brand Thyristors Lead Form Dimensions TO-220 Type 59 — R or L Package TO-220 Type 67 — R Package Surface Mount Mounting Tab Common to MT2 / Anode for Non-isolated R Package This Footprint Optional 0.270 B A MT2 / Anode D MT2 / Anode 0.460 A 0.170 0.860 0.115 0.230 B MT1 / Cathode C 0.150 Gate D MT2 / Anode 0.155 0.050 TYP Gate MT1 / Cathode Pad Outline C Inches Dimension Millimeters Min Max Min Max A 0.685 0.725 17.40 18.42 B 0.558 0.598 14.17 15.19 C 0.375 9.53 D 0.250 6.35 Dimension Inches Millimeters Min Max Min Max A 0.780 0.850 19.05 21.59 B 0.080 0.100 2.03 2.54 C 0.110 0.130 2.79 3.30 D 0.013 0.33 TO-220 Type 65 — R or L Package TO-220 Type 68 — R or L Package Replaces RCA 6210 Surface Mount Mounting Tab Common to MT2 / Anode for Non-isolated R Package Mounting Tab Common to MT2 / Anode for Non-isolated R Package 0.460 B This Footprint Optional 0.270 A 0.170 0.860 D 0.115 0.230 MT1 / Cathode MT2 / Anode B C A Gate / Trigger MT2 / Anode Gate / Trigger 0.045 0.055 TYP Inches MT2 / Anode Pad Outline Millimeters Min Max Min Max A 0.550 0.580 12.70 14.27 B 0.820 0.260 14.73 15.75 C 0.530 0.570 7.62 D 0.080 0.120 2.03 Dimension 3.05 354 Inches Millimeters Min Max Min Max A 0.780 0.850 19.05 21.59 B 0.080 0.100 2.03 2.54 C 0.110 0.130 2.79 3.30 D Lead Form Dimensions 0.050 TYP MT1 / Cathode D Dimension C .150 0.013 0.33 ©2008 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to http://www.littelfuse.com for current information. Teccor® brand Thyristors TO-92 Type 70 — E Package Lead Dimensions Lead Form Dimensions TO-218 Type 81 — K, M, J, or W Packages SIDAC Only Mounting Tab Common to MT2 / Anode on W Package Flat Side A A B MT1 / Pin 1 MT1 / Cathode MT2 / Pin 3 Inches Dimension Millimeters Min Max A Min 0.060 B Dimension 0.50 MT2 / Anode B Gate Inches Millimeters Min Max Min Max Max A 0.080 0.120 2.03 3.05 1.52 B 0.580 0.640 14.73 16.26 12.7 TO-218 Type 82 — M and W Packages TO-92 Type 75 — E Package Replaces TO-5 Pinout Mounting Tab Common to MT2 / Anode Flat Side D TYP A A Gate / Pin 2 B MT1 / Cathode / Pin 1 B Gate / Pin 2 C Gate MT1 / Cathode MT2 / Anode / Pin 3 F C E Dimension A Inches Min Dimension Millimeters Max 0.400 Min Max Max Min Max 0.095 2.41 B 0.080 0.120 2.03 3.05 12.70 C 0.580 0.640 14.73 16.26 0.500 C 0.080 0.120 D 0.045 0.085 1.14 2.16 E 0.180 0.220 4.57 5.59 F 0.080 0.120 2.03 3.05 ©2008 Littelfuse, Inc. Min A Millimeters 10.16 B Specifications are subject to change without notice. Please refer to http://www.littelfuse.com for current information. Inches 2.03 3.05 355 Lead Form Dimensions