| Type of accessories for semiconductors | retaining spring |
| Symbol | Material | Manufacturer | Application | Related items | Mechanical mounting | Number of ways | Dimensions | Holding force | Wall thickness | Length | H | Colour | Width |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| [N] | [mm] | [mm] | [mm] | [mm] | |||||||||
| THF | stainless steel | FISCHER ELEKTRONIK | TO220, TO247, TO248, TO3P | SK104 | - | - | - | - | - | - | - | - | - |
| THF409/220/1 | stainless steel | FISCHER ELEKTRONIK | TO218, TO220, TO247, TO248, TO3P | SK409, SK459 | - | - | - | - | - | - | - | - | - |
| THF-B | SUS301 | TO220 | - | - | - | Fig. 1. | - | - | - | - | - | - | |
| THFU-3 | stainless steel | FISCHER ELEKTRONIK | TO218, TO220, TO247, TO248, TO3P | LAM4K, SK480, SK481, SK482, SK483, SK487, SK489, SK490, SK492, SK495, SK499, SK514, SK573, SK574, SK575, SK576, SK589 | - | - | - | - | - | - | - | - | - |
| THFU-4 | stainless steel | FISCHER ELEKTRONIK | TO218, TO220, TO247, TO248, TO3P | SK480, SK481, SK482, SK483, SK487, SK489, SK490, SK495, SK499, SK514, SK575, SK589 | - | - | - | - | - | - | - | - | - |
| THFMG-10 | stainless steel | FISCHER ELEKTRONIK | SOT32, TO218, TO220, TO247, TO264 | - | screw | 10 | - | - | - | - | - | - | - |
| THFA3 | stainless steel | FISCHER ELEKTRONIK | TO220 | - | - | - | Fig. 2. | 33 | 5.5 | - | - | - | - |
| THF129/TO220 | stainless steel | FISCHER ELEKTRONIK | TO220 | FK219, FK222, SK129 | - | - | Fig. 3. | - | - | - | - | - | - |
| THFU-2 | stainless steel | FISCHER ELEKTRONIK | TO218, TO220, TO247, TO248, TO3P | - | - | - | - | - | - | - | - | - | - |
| THFM5 | stainless steel | FISCHER ELEKTRONIK | SOT32, TO218, TO220, TO247, TO264 | - | screw | - | - | 60 | - | - | - | - | - |
| THFU-5 | stainless steel | FISCHER ELEKTRONIK | SOT32, TO218, TO220, TO247, TO264 | - | - | - | - | - | - | - | - | - | - |
| KC-194 | stainless steel | SEIFERT ELECTRONIC | - | - | - | - | - | - | - | 37.3 | 8.5 | natural | - |
| KC-195 | stainless steel | SEIFERT ELECTRONIC | - | - | - | - | - | - | - | 44 | 16.3 | natural | - |
| KC-196 | stainless steel | SEIFERT ELECTRONIC | - | - | - | - | - | - | - | 45.5 | 9.5 | natural | - |
| KC-196/TO-220 | stainless steel | SEIFERT ELECTRONIC | - | - | - | - | - | - | - | 18.3 | 12.2 | natural | - |
| KC-199 | stainless steel | SEIFERT ELECTRONIC | - | - | - | - | - | - | - | - | 11.1 | natural | 3.1 |
| KC-205 | stainless steel | SEIFERT ELECTRONIC | - | - | - | - | - | - | - | 12.5 | 4 | natural | - |
| KC-220 | stainless steel | SEIFERT ELECTRONIC | - | - | - | - | - | - | - | - | - | - | - |
| KC-225 | stainless steel | SEIFERT ELECTRONIC | - | - | - | - | - | - | - | 16.4 | 4 | natural | - |
| 116200F00000G | stainless steel | BOYD CORP | - | - | - | - | - | - | - | 30.7 | 9.3 | natural | 6.7 |
| THFM1 | stainless steel | FISCHER ELEKTRONIK | - | - | - | - | - | - | - | - | - | - | - |
| THF-220-17 | stainless steel | FISCHER ELEKTRONIK | TO218, TO220, TO247, TO248, TO3P | - | - | - | - | - | - | - | - | - | - |
| CLIP-MC28 | - | ALUTRONIC | - | - | - | - | - | - | - | - | - | - | - |
| MC797 | spring steel | ALUTRONIC | TO218, TOP3 | - | - | - | - | - | - | - | - | - | - |