Thermal paste RF amplifiers

Description

New high power RF transistors pack an amazing amount of power into very small footprint. This requires very good thermal transfer to the heatsink. Best possible cooling for RF power transistors and PCB laminate in planar design pallets are critical for long life and best electrical performance for RF Power amplifiers. The best possible cooling is obtained by soldering the transistor directly to the copper base. Unfortunately this is not so easy and such transistors are hard to replace. They can even be damaged by over-heating in this way. Most companies use thermal paste of some kind. It works but it is not ideal. 

We are providing you all solutions, thermal transfer paste and also special thermal transfer pads for RF power transistors (put them between heatsink and transistors).

ASMX thermal paste
The thermal paste is the simplest solution and also the one most often used for RF power transistors. Do not apply a thick layer, keep it thin and even.
– Works with any type of heatsink metal
– Improves thermal transfer
– Longer life of RF power transistors
– Improved P1dB performance
– Improved IMD3 performance
– 4g or 45g plastic syringe

Metal pads for RF transistors with cleaning set
Special soft metal pads with low melting temperature that are placed between substrate and transistor.  Superior thermal conductivity with easy application which consists of 100% from a high thermal conductivity alloy and is absolutely non-toxic. At power-up as transistor warms up the metal might melt to fill the space between the substrate and transistor optimally – there remains no solid residues – it is also suitable for application to aluminum surfaces and other metals
– 3 pads 40x40mm size, sufficient for about 6 transistors, cut to size
– Cleaning set included, ensure good clean surface
– Not as easy to work with
– Works with any type of heatsink metal
– Improves thermal transfer
– Longer life of RF power transistors
– Improved P1dB performance
– Improved IMD3 performance
– Cleaning set included to ensure good clean surface

Liquid metal for RF transistors with cleaning set, ultra edition
The Liquid Ultra liquid metal thermal paste consists of highly thermally conductive metals, which results in the extremely good thermal conductivity compared to other contact media. The liquid metal is pasty at room temperature, completely non-toxic and it is very easy to apply and use.

The application of the Liquid metal thermal paste is simple and unproblematic. The paste-like heat transfer agent is applied as thinly as possible on both sides with a brush. Due to the adhesion, it does not drip and can therefore of course also be used vertically. The application creates a very thin, metallic coating which, when the contact surfaces are connected, combines to form a highly thermally conductive and extremely thin layer. This enables absolutely outstanding thermal conductivity values ​​and excellent cooling performance. The amount contained in the tube is usually sufficient for several applications.

Note: The Liquid metal thermal paste was developed exclusively for use with high-quality contact surfaces made of copper, silver, nickel or gold. It is not suitable for use on an aluminum contact surface!

It is VERY IMPORTANT that the liquid metal does not come in contact with aluminum as it will react chemically!