Aluminum polymer capacitors set new benchmark for temperature resistance

The Panasonic SP-Cap portfolio combines improved temperature performance with high capacitance values and ripple current ratings.

Panasonic Industry has introduced two series of SP-Cap aluminum polymer capacitors that give designers a new option to extend lifetime in high-temperature operating conditions. 

The KX series offers endurance of 5,500 hours at 125°C, promising high reliability in high temperatures. These capacitors also last for a minimum of 1,000 hours at 85°C and 85% relative humidity, making them suitable for operation in demanding outdoor applications. The recently released JX series of SP-Cap capacitors offers similar reliability in demanding temperature and humidity conditions. The JX capacitors are rated for a lifetime of 3,000 hours at 125°C. 

As aluminum polymer capacitors, the KX and JX series are typically specified when an application such as noise reduction or voltage smoothing requires low ESR, and the KX series features ESR of 9 mΩ. The SP-Cap capacitors offer an attractive alternative to multilayer ceramic capacitors (MLCCs) and pure tantalum capacitors thanks to the long lifespan and high stability. 

The high capacitance also means that designs require fewer parts and a smaller PCB. They produce better performance than other capacitor types, especially in complex, low-profile electronic devices.