WLFT 404 23 X 23

Thermal Conductive Foil, 0.37 W/m.K

⚠️ 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: Thermally Conductive Materials
Thermal Conductivity:0.37W/m.K; Conductive Material:-; Thickness:-; Thermal Impedance:-; Dielectric Strength:-; External Length:-; External Width:23mm; Product Range:-; SVHC:No SVHC (
SVHC: No SVHC (25-Jun-2025)
Thickness: -
Product Range: -
External Width: 23mm
External Length: -
Thermal Impedance: -
Conductive Material: -
Dielectric Strength: -
Thermal Conductivity: 0.37W/m.K

Delivery and price
Units per pack	100
Price	1.13 €
Current stock	500+
Lead time	30 days

Datasheet

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## **Thermally conductive foil both sides adhesive** 

– good thermal charactaristics – double-sided adhesive layers – replaces mechanical fastenings – cuttings and cut-outs upon request 

|**art. no.**|version|width [mm]|**art. no.**|version|width [mm]|
|---|---|---|---|---|---|
|**WLFT 404 R25**|running metre|25|**WLFT 405 R25**|running metre|25|
|**WLFT 404 R50**|running metre|50|**WLFT 405 R50**|running metre|50|
|**WLFT 404 R100**|running metre|100|**WLFT 405 R100**|running metre|100|
|**WLFT 404 R200**|running metre|200|**WLFT 405 R200**|running metre|200|



|**art. no.**|version|dimensions [mm]|**art. no.**|version|dimensions [mm]|
|---|---|---|---|---|---|
|**WLFT 404 100x100**|plate|100 x 100|**WLFT 405 100x100**|plate|100 x 100|
|**WLFT 404 100x200**|plate|100 x 200|**WLFT 405 100x200**|plate|100 x 200|
|**WLFT 404 200x200**|plate|200 x 200|**WLFT 405 200x200**|plate|200 x 200|



## **Technical data** 

||**WLFT 404**|**WLFT 405**|
|---|---|---|
|**description**|isolations, double-sided adhesive|non isolations, double-sided adhesive|
|**complete thickness**|0.127 (± 0.03) mm|0.15 (± 0.03) mm|
|**truss material**|polyimide (kapton MT) 0.025 mm|aluminium foil 0.05 mm|
|**glue layer**|acrylate (pressure sensitive) double-sided|acrylate (pressure sensitive) double-sided|
|**specific thermal resistance**|3.7 °C cm2/W|3.4 °C cm2/W|
|**thermal conductivity**|0.37 W/mK|0.5 W/mK|
|**snap through stability**|5 KV/mm|–|
|**holding force (overlapping)**|0.86 MPa|0.93 MPa|
|**holding force (shear rate)**|**Al**25 °C 0.897 [MPa]/**Al**150 °C 0.345 [MPa]/<br>**Cu**25 °C 0.828 [MPa]/**Cu**150 °C 0.31 [MPa]/<br>**Al**2O325 °C 1.17 [MPa]/**Al**2O3150 °C 0.34<br>[MPa]|**Al**25 °C 0.86 [MPa]/**Al**150 °C 0.38 [MPa]/<br>**Cu**25 °C 1.1 [MPa]/**Cu**150 °C 0.48 [MPa]/<br>**Al**2O325 °C 1.0 [MPa]/**Al**2O3150 °C 0.41<br>[MPa]|
|**temperature range**|-40 °C ... +150 °C|-40 °C ... +150 °C|
|**flammability**|UL 94 V-0|UL 94 V-0|



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**H Profiles for PCB components** ➔ **A 89 Finger-shaped heatsinks** ➔ **C 2 – 3 H Heatsinks for PCB** ➔ **A 87 – 89 Distance sleeves** ➔ **E 23 – 28 Profiles for PCB mounting** ➔ **A 87 – 108 Spacers** ➔ **E 29 – 30 Heatsinks for transistors** ➔ **C 4 – 9 GEL thermal conductive foil** ➔ **E 7** 

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Updated at April 28, 2026

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