Called ‘GEL 20’, it is a one-component material that requires no secondary cure and offers 2.4W/mK conductivity. Operation is over -55 to +200°C.
“The material’s heavy paste-like consistency enables controlled dispensing, applied in variable thicknesses up to 4mm,” according to the company. It “needs only low compressive force to deform under assembly pressure, subjecting components, solder joints and wire leads to minimal stresses”.
Other product claims are: low oil bleeding, resistance to movement under vibration and appropriate tackiness.
Electrical properties are: dielectric strength is 8kVac/mm (ASTM D149), volume resistivity ohm-cm 1012Ωcm (ASTM D257), dielectric constant 4 (1MHz 250μm) and dissipation factor 0.003 (1MHz 250μm).
It is available in syringes, cartridges and buckets up to 7.5 litres.
Likely application areas, Chomerics told Electronics Weekly, include electronic control units, converters, inverters, on-board chargers, control modules for driver assistance systems and infotainment, then in non-automotive applications such as with power supplies, microprocessors and graphics processors.