Potting Compound Selection for Power Supplies
There are several different types of potting compounds on the market which are designed to perform different functions. Potting compound is critical to ensuring the optimum performance of a LED driver power supply. Selection of a particular potting compound depends on several factors such as:
- Thermal performance, i.e. thermal conductivity
- RF Performance, i.e. dielectric constant (indicates how much the EMC will be affected)
- Chemical composition of the compound, i.e. if it is suitable for surface mounted components.
- Time taken for partial and full cure