Films and Tapes - Keratherm

Flexible films consisting of a silicone elastomer filled with various thermally conductive ceramic materials. All film types are electrrically insulating. For improved handling, the films are also available with fiberglass reinforcement. The standard films adapt to the component surface. Small irregularities can be evened out by using only minimal contact pressures. The good thermal properties of these films quarantee optimum heat transport to the heat sink and at the same time good electrical insulation properties. All Keratherm standard films are UL tested.

• Film Types
• Comparison

• Keratherm White 86/30

  especially suitable for use in power components of communications technology where high thermal conductivity and electrical isolation are needed. They offer an inexpensive alternative to the foils manufactured with boron-nitride filling.

  • high thermal conductivity 2.1 W/mK
  • good electrical insulation 7.0 kV/mm

  Keratherm Green 86/37

  especially suitable for use in automotive electronics or in industries requiring high insulation such as mechanical engineering, household appliances and aviation.

  • good thermal conductivity 1.7 W/mK
  • high electrical insulation22 kV/mm

  Keratherm Pink 86/50

  especially suitable for power modules in which large quantities of heat need to be conducted. The foils are ideally suited for uses in which high reliability must be guaranteed and has been implemented a milliontimes over in industries such as radio, television, computer and medical.

  • very high thermal conductivity 2.9 W/mK
  • good electrical insulation 7.0 kV/mm

  Keratherm Red 86/82, 86/83

  particularly suitable for applications in the high-power area. It possesses excellent thermal and electrical properties. Because of its good performance it can be reliably used in densely packed electronic applications.

  • excellent thermal conductivity 6.5 W/mK
  • good electrical insulation 5.0 kV/mm

  Keratherm Brown 70/50

  designed for low cost applications. The combination of good thermal conductivity and high electrical isolation in this series makes the foils a cost effective and good performing solution for various standard applications.

  • good thermal conductivity 1.0 W/mK
  • good electrical insulation 13.0 kV/mm

• Keratherm Standard Films

  Film		thermal conductivity	thermal resistance	breakdown voltage	measured thickness	hardness	characteristics
  		W/mK	K/W	kV	mm	Shore A
  86/83	Keratherm Red w/ fiberglass	8.0	0.07	1.0	0.250	50 – 60	highest thermal conductivity
  86/82	Keratherm Red w/ fiberglass	6.5	0.09	1.0	0.250	60- 70	very high thermal conductivity
  U 90	Keratherm Silicone Free	6.0	0.09	4.0	0.200	65 – 75	silicone free, high thermal conductivity
  86/81	Keratherm Red	5.5	0.10	1.0	0.200	25 – 35	high thermal conductivity
  86/50	Keratherm Pink	3.5	0.16	1.5	0.225	70 – 80	high thermal conductivity
  86/30	Keratherm White	2.5	0.22	1.5	0.225	70 – 80	good thermal conductivity / isolation
  U 80	Keratherm Silicone Free	1.8	0.20	4.0	0.150	80 – 90	silicone free
  86/37	Keratherm Green	1.8	0.35	8.0	0.225	65 – 75	high isolation
  MT 103	Elastomer Film	1.8	0.39	10	0.280	70 – 80	silicone free, high isolation
  70/50	Keratherm Brown w/ fiberglass	1.4	0.44	4.0	0.250	80 – 90	good price-performance-ratio
  U 23	Keratherm Silicone Free	1.2	0.52	9.0	0.250	80 – 90	silicone free
  MT 102	Elastomer Film	1.1	0.53	10	0.250	65 – 75	silicone free, high isolation