A line of military grade stacked capacitors from KEMET Corporation have been crafted for use in high-frequency power supplies. Commonly referred to as switch mode power supplies (SMPS) stacked capacitors, these products are qualified to military performance specification MIL-PRF-49470 and DSCC Drawing 87106. When used in high-reliability SMPS and pulse energy applications, the low equivalent series resistance (ESR) and equivalent series inductance (ESL) of these devices make them a logical choice for input and output filtering in power supply or snubber applications. These capacitors are available in case codes 3, 4, and 5, X7R dielectric with voltage ratings from 50 VDC up 500 VDC. Capacitance values go up to 47 µF. The chip stack is horizontal, and the lead-frame attachment is high-temperature solder. They are also available in unencapsulated (unspotted bare chips) or encapsulated (potted assembly) styles. Generally, the encapsulated styles are used for applications where increased mechanical and environmental protection is required—e.g., avionic systems. Look for more information on the KEMETwebsite.
Stacked Capacitor Series Meets Military Performance Specifications
