TGF-USS-SI

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TGF-USS-SI is an electrically insulating thermally conductive high performance silicone gap filler. It is ideal for use in applications where thermal transfer over large gaps caused e.g. by big tolerances or different stack up heigths must be achieved. Due to the specific formulation and filling with ceramic particles the silicone elastomer has a very high thermal conductivity. Through its ultra softness and flexibility the material perfectly mates to irregular surfaces thus filling gaps at minimum pressure. By its use the total thermal resistance is minimised. The natural tackiness of the material allows for an easy and reliable pre-assembly. The material is one-side tacky through lamination with a thermally conductive film.




PROPERTIES

  • Ultra soft and compliable
  • Thermal conductivity: 3.3 W/mK
  • Operates at minimum pressure
  • Extraordinary chemical resistance and longterm stability
  • Shock absorbing
  • Easy mounting through self tackiness
  • One-side self-tacky

AVAILABILITY

  • Sheet 210 x 420 mm (0.5 – 3.0 mm)
  • Sheet 210 x 360 mm (3.5 – 5.0 mm)
  • Tacky on one side by film laminate
    (TGF-USSXXXX-SI-A1)
  • Die cut parts
  • Kiss cut parts on sheet

APPLICATION EXAMPLES

Thermal link of:

  • SMD packages
  • Through-hole vias
  • RDRAMs memory modules
  • Flip Chips, DSPs, BGAs, PPGAs

For use in Automotive applications / Laptops / Medicine engineering / Embedded boards

OVERVIEW

PropertyUnitTGF-USS1000- SI-A1TGF-USS0500- SI-A1TGF-USS2000- SI-A1TGF-USS3000- SI-A1TGF-USS5000- SI-A1
MaterialCeramic filled siliconeCeramic filled siliconeCeramic filled siliconeCeramic filled siliconeCeramic filled silicone
ColourDark grey / greyDark grey / greyDark grey / greyDark grey / greyDark grey / grey
Thicknessmm0.51.02.03.05.0
HardnessShore 004545454545
No Paint Wetting Impairment Substances (PWIS)1YesYesYesYesYes
UL Flammability (Equivalent)UL 94V0V0V0V0V0
RoHS Conformity2011 / 65 / EUYesYesYesYesYes
Thermal
Resistance2 @ 60 PSI @ Thickness°C-inch²/W (mm)0.26 (0.47)0.40 (0.87)0.63 (1.55)0.75 (1.84)0.96 (2.48)
Resistance2 @ 35 PSI @ Thickness°C-inch²/W (mm)0.29 (0.48)0.45 (0.93)0.70 (1.70)0.94 (2.30)1.15 (3.27)
Resistance2 @ 10 PSI @ Thickness°C-inch²/W (mm)0.31 (0.49)0.51 (0.99)0.80 (1.85)1.07 (2.68)1.42 (3.98)
Thermal ConductivityW/mK3.33.33.33.33.3
Operating Temperature Range°C- 40 to + 150 - 40 to + 150 - 40 to + 150 - 40 to + 150 - 40 to + 150
Electric
Dielectric StrengthkV / mm>10>10>10>10>10
Volume ResistivityOhm - cm1,0 x 10101,0 x 10101,0 x 10101,0 x 10101,0 x 1010