FK 245 MI 247 O

Heat Sink, TO-218/220/247, 20.2 °C/W, TO-218, TO-220, TO-247, TO-248, 20 mm, 27 mm, 9 mm

⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.

Manufacturer: FISCHER ELEKTRONIK
Product type: Natural Convection Heat Sinks
Thermal Resistance:20.2°C/W; Packages Cooled:TO-218, TO-220, TO-247, TO-248; External Width - Metric:20mm; External Height - Metric:27mm; Externa; Available until stocks are exhausted
SVHC: No SVHC (25-Jun-2025)
Product Range: -
Packages Cooled: TO-218, TO-220, TO-247, TO-248
Heat Sink Material: Copper
Thermal Resistance: 20.2°C/W
External Width - Metric: 20mm
External Height - Metric: 27mm
External Length - Metric: 9mm
External Width - Imperial: 0.79"
External Diameter - Metric: -
External Height - Imperial: 1.06"
External Length - Imperial: 0.35"
External Diameter - Imperial: -

Delivery and price
Units per pack	100
Price	1.36 €
Current stock	200+
Lead time	30 days

Datasheet

- **Aufsteckkühlkörper Clip-on Heatsinks Dissipateurs enfichables** 

- eeee ee – universeller Aufsteckkühlkörper – universal clip-on heatsinks for type – dissipateur enfichable universel pour boîfür die Bauformen TO 218, TO 220, TO 218, TO 229, TO 247, TO 248, tiers de transistor TO 218, TO 220, TO 247, TO 248, SIP-Multiwatt SIP-Multiwatt and similar housings TO 247, TO 248, SIP-Multiwatt et und ähnliche – easy assembly by pushing the heatsink similaires 

- – einfache Montage durch aufschieben onto the component – montage facile par enfilage du dissipateur 

      - montage facile par enfilage du dissipateur sur le boîtier 

   - einfache Montage durch aufschieben des Kühlkörpers auf das Bauteil 

- for vertical and horizontal fastening by soldering 

   - pour fixation verticale et horizontale par soudure 

- für vertikale und horizontale Einlötbefestigung 

- fin height variations on request – versions specifically designed to meet customers requirements on request 

   - variations de l’hauteur des ailettes sur demande 

- Variationen der Rippenhöhe auf Anfrage 

   - versions spéciales suivant spécifications du client 

- Sonderausführungen nach kundenspezifischen Vorgaben 

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0,6 10<br>27 1,2 20<br>><br>FK 245 MI 247 O 20,2 K/W<br>ohne Lötfahne without solder lug sans paillette picot<br>0,6 10<br>mY a T i<br>0,6 1<br>27 1,2 20<br>Op ua 5<br>FK 245 MI 247 H 20,5 K/W<br>mit Lötfahne für horizontalen Einbau with solder lug for horizontal installation avec paillette picot pour montage horizontal<br>0,6 10<br>4<br>mY 1 - 7 Te n<br>1 27 1,2 20<br>UP P eg i p<br>FK 245 MI 247 V 19,7 K/W<br>mit Lötfahne für vertikalen Einbau with solder lug for vertical installation avec paillette picot pour montage vertical<br>Material: Kupfer (Cu), 0,6 mm dick Material:  copper (Cu), 0,6 mm thick Matériau: Cuivre (Cu), épaisseur 0,6 mm<br>ee Oberfläche: lötfähig Surface: solderable Revêtement: Soudable<br>16<br>8,5 9<br>16<br>3,2<br>8,5 9<br>0,6 16<br>8,5 9<br>1,1<br>4,85<br>**----- End of picture text -----**<br>


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|||||||
|---|---|---|---|---|---|
|Transistorhaltefedern|Retaining Springs for Transistors|Ressorts de retenue pour boîtiers|➜|A 84 – 86|
|C 20|AufsteckkühlkörperStrangkühlkörper mit Lötstiften|Extruded Heatsinks with Solder PinsAttachable Heatsinks|Dissipateurs extrudés avec broches à soudureDissipateurs enfichables|➜➜|C 11 – 14A 87 – 101|
|||Kapton-Unterlegscheibe für Halbleiter|Kapton Rubber Washers for Semiconductors|Rondelles Kapton pour semiconducteurs|➜|I  12|

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Updated at April 29, 2026

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