【 Case Application | EP 1700A/B Epoxy Encapsulation Adhesive for Transistor Packaging 】
In the packaging process of electronic devices, the transistor serves as a key component for controlling current amplification, and its stability directly affects the reliability and lifespan of the entire machine. Especially in high-frequency, high temperature, and high humidity environments, traditional packaging materials are prone to problems such as cracking, leakage, or performance degradation. Therefore, choosing a stable and durable potting adhesive is crucial. Transistor packaging 1、 Application backgroundPower type transistors often experience continuous current surges and temperature fluctuations during operation. Its internal structure is complex and requires extremely high requirements for the sealing material. It not only needs to have good electrical insulation performance, but also needs to maintain adhesive strength and structural integrity under long-term thermal cycling.The sealing material previously used by the customer is prone to microcracks during high-temperature aging testing, resulting in an increase in transistor leakage rate and a decrease in insulation resistance, which seriously affects the product qualification rate. For this reason, they chose to try the EP 1700A/B epoxy sealant with better performance.2、 Material characteristicsEP 1700A/B epoxy potting adhesive is a 1:1 ratio heating curing potting material that can be stored at room temperature and maintain fluidity even after low-temperature mixing, making it convenient for mass production. Its key advantages include:Excellent high temperature resistanceAfter curing, the material can stably withstand high temperature environments without softening or deformation, and is suitable for long-term operation of power devices.Outstanding mechanical performanceThe cured material has strong toughness, impact resistance, and vibration resistance, which can effectively absorb thermal stress and avoid cracking of the packaging layer caused by mismatched thermal expansion coefficients.Excellent protective performanceIt has excellent moisture, water, oil, and dust resistance, and can resist acid and alkali corrosion, ensuring long-term stable operation of the device in harsh environments.Excellent electrical characteristicsAfter curing, it has high insulation, good compressive…
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