Insulating substrate for precision current shunt resistors providing electrical isolation and thermal management.
An insulating substrate is a critical component in precision current shunt resistors, serving as the foundational layer that electrically isolates the resistive element from the mounting surface while providing mechanical support and efficient heat dissipation. It ensures accurate current measurement by preventing leakage currents and maintaining stable thermal conditions.
诱因 → 失效模式 → 工程缓解
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The primary function is to provide electrical isolation between the resistive element and mounting surface while facilitating efficient heat dissipation to maintain measurement accuracy.
Material choice determines thermal conductivity, dielectric strength, and thermal expansion characteristics. Alumina offers good balance, while Aluminum Nitride provides superior thermal performance for high-power applications.
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