Pre-packaged in heat-sealed plastic bags for use on assembly line.
Stock mounting hardware using one number for better control and identification. Part number can be printed on the bag if
requested.
Standard kit contains Thermalfilm insulator. For high maximum operating temperatures (550°C), order a mica insulator by
adding suffix letter "M" to the part number. For electrical isolation and excellent thermal resistance, use In-Sil-8 for an
insulator by adding suffix letter "S' to the part number.
Other insulator materials available include: hard anodized aluminum and aluminum oxide.
Refer to proper product section for drawings of insulators and shoulder washers used in the mounting kits.
TO-220 Mounting Kit
Part Number Properties RoHS PCN
4880G Thermalfilm
4880MG Mica Insulator
4880SG Thermalsil III
Item Qty Description Part Number
1 1
Insulator
Thermalfilm
Mica
Thermalsil III
43-77-9
(56-77-9)
(53-77-9)
2 1 Shoulder Washer 7721-7PPS
3 1 Flat Washer #4 MS15795-804
4 1 No. 4-40 UNC-2B
Hex Nut MS35649-244
5 1 No. 4-40 UNC-2A X
1/2 Long Phillips Pan Head Screw MS51957-17
6 1 Lockwasher, No.4 MS35338-135
Note: Smooth side of flat washer should be placed against insulator when using
the kit.
TO-3 Mounting Kit No.4804G
Part Number Properties RoHS PCN
4804G Thermalfilm
4804MG Mica Insulator
4804SG Thermalsil III
Item Qty Description Part Number
1 1
Insulator
Thermalfilm
Mica
Thermalsil III
43-03-2
(56-03-2)
(53-03-2)
2 2 Shoulder Washer 7721-5PPS
3 2 Flat Washer #6 MS15795-805
4 2 No. 6-32 UNC-2B
Hex Nut MS35649-264
5 2 No. 6-32 UNC-2A X
1/2 Long Phillips Pan Head Screw MS51957-30
6 2 Lockwasher, No.4 MS35338-136
7 1 Solder Lug 322-156
DO-4 Mounting Kit No.4860
Item Qty
No. 4860 (Thermalfilm)
No. 4860M (Mica Insulator)
No. 4860S (Thermalsil III)
Description
Part Number
1 2
Insulator
Thermalfilm
Mica
Thermalsil III
43-02-10
(56-02-10)
(53-02-10)
2 1 PTFE Bushing 110
3 1 Flat Washer #10 AN960-C10L
4 1 No. 10-32 UNF-2B
Hex Nut MS35650-304
5 1 Terminal, Locking MS77066-4
DO-5 Mounting Kit No.4870
RoHS Compliant
Mounting Kits
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Item Qty
No. 4870 (Thermalfilm)
No. 4870M (Mica Insulator)
Description
Part Number
1 2
Insulator:
Thermalfilm
Mica
Thermalsil III
43-02-25
(56-02-93)
(53-02-25)
2 1 PTFE Bushing 113
3 1 Flat Washer #1/4 AN960-C416L
4 1 No. 1/4-32 UNF-2B
Hex Nut MS51972-1
5 1 Terminal, Locking MS77069-3
TO-66 Mounting Kit No.4813
Item Qty No. 4813 (Thermalfilm) Part Number
1 1 Insulator:
Thermalfilm 43-66-2
2 2 Shoulder Washer 7721-6PPS
3 2 Flat Washer #6 MS15795-803
4 2 No.4-40 UNC-2B
Hex Nut MS35649-244
5 2 No. 4-40 UNC-2A X 1/2 Long PPH Screw MS1957-17
6 2 Lockwasher, No.6 MS35338-135
7 1 Solder Lug 322-.144
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