KEMET's X7R dielectric features a 125°C maximum operating temperature and is considered "temperature stable." The X7R dielectric is a Class II material. Components of this classification are fixed, ceramic dielectric capacitors suited for bypass and decoupling applications or for frequency discriminating circuits where Q and stability of capacitance characteristics are not critical. X7R exhibits a predictable change in capacitance with respect to time and voltage and boasts a minimal change in capacitance with reference to ambient temperature.

• Capacitance change is limited to ±15% from -55°C to +125°C.
• Operating temperature range from -55°C to +125°C
• Capacitance range includes E24 decade values from 10pF to 47µF
• DC voltage ratings from 6.3V to 250V
• EIA 0402, 0603, 0805, 1206, 1210, 1808, 1812, 1825, 2220 and 2225 case sizes available
• Temperature stable dielectric
• Capacitance tolerances of ±5%, ±10% and ±20%
• Non-polar device, minimizing installation concerns
• Lead (Pb)-free, RoHS, and REACH Compliant

The 1812GC472KAT1A is a Multilayer Ceramic Capacitor with Ni/Sn-plated termination, X7R dielectric and 1812 case. The high value, low leakage and small size are difficult parameters to obtain in capacitor for high voltage systems. The standard high voltage MLC chip capacitor meets this performance characteristic and is designed for applications such as snubbers in high frequency power converters, resonators in SMPS and high voltage coupling/DC blocking. Larger physical sizes than normally encountered chips are used to make high voltage MLC chip products. The temperature gradient during heating or cooling cycles should not exceed 4°C per second. The preheat temperature must be within 50°C of the peak temperature reached by the ceramic bodies through the soldering process.

High voltage chip designs exhibit low ESRs at high frequencies

2000pF ±5% 100V Ceramic Capacitor C0G, NP0 1206 (3216 Metric)

KEMET’s C0G dielectric features a 125°C maximum operating temperature and is considered “stable.” The Electronics Components, Assemblies & Materials Association (EIA) characterizes C0G dielectric as a Class I material. Components of this classification are temperature compensating and are suited for resonant circuit applications or those where Q and stability of capacitance characteristics are required. C0G exhibits no change in capacitance with respect to time and voltage and boasts a negligible change in capacitance with reference to ambient temperature. Capacitance change is limited to ±30 ppm/ºC from −55°C to +125°C