How to Choose Power Supply Potting Compound? ELAPLUS Thermal Conductive Potting Solutions — One-Stop Resolution for Power Module Heat Dissipation Challenges
I. The Hidden Killer of Power Modules: Have You Paid Attention to Heat? Have your charging piles suddenly stopped working in scorching summer heat? Do LED driver power supplies frequently burn out within less than a year? Does your designed inverter always fail at critical moments? The culprit is most likely the same — heat accumulation. Geomagnetic sensor potting During continuous operation, core components such as transformers, inductors, MOSFETs and rectifier bridges inside power modules generate massive heat. When such heat cannot be dissipated efficiently, the failure rate of electronic devices may double for every 10℃ rise in junction temperature. Especially for high power density equipment like new energy vehicle charging guns, photovoltaic inverters and LED driver power supplies, heat dissipation is no longer an optional add-on, but a decisive factor determining product reliability and service life. In the past, engineers regarded thermal conductive potting compound as an auxiliary material. By 2026, the whole industry has reached a consensus: thermal conductive potting compound has upgraded from auxiliary material to a core functional component. Choosing the right potting compound is equivalent to equipping the power module with an all-round protective armor integrating heat dissipation, insulation, flame retardancy and environmental protection. With countless potting products on the market and thermal conductivity ranging from 0.5 W/m·K to over 3 W/m·K, how should you make the right choice? This article clarifies your selection logic from four dimensions: thermal conductivity matching, material comparison, application scenario adaptation and flame retardant rating. II. How to Choose 1W, 2W or 3W Thermal Conductivity? Higher Is Not Always Better Many purchasers and engineers hold a common misconception that the higher the thermal conductivity, the better. Thermal conductivity (Unit: W/m·K) refers to the heat transfer capability of materials; the higher the value, the stronger the heat conduction performance. In practical…
