KEMET’s low loss (KPS-MCL) high-temperature SMPS ceramic stacked capacitors combine a robust and proprietary C0G/NPO base metal electrode (BME) dielectric system with a durable lead-frame technology for high temperature and high power SMPS applications. These devices are specifically designed to withstand the demands of harsh industrial environments such as down-hole oil exploration and automotive/avionics engine compartment circuitry.
The KPS-MCL is constructed with large chip multilayer ceramic capacitors (MLCCs), vertically stacked and secured to a lead-frame termination system, using a high melting point (HMP) solder alloy. Vertically stacking the capacitors in lead frames allows for much lower ESR (low loss) and thermal resistance, which translates to very high ripple current capability. The lead-frame isolates the MLCCs from the printed circuit board (PCB) while establishing a parallel circuit configuration.
KEMET’s high-temperature C0G capacitors are temperature-compensating and are well-suited for resonant circuit applications, or for those where Q and stability of capacitance characteristics are required. They exhibit no change in capacitance with respect to time and voltage and boast a negligible change in capacitance with reference to ambient temperature. Capacitance change is limited to ±30 ppm/ºC from −55°C to +200°C. In addition, these capacitors exhibit high insulation resistance with low dissipation factor at elevated temperatures up to +200°C. They also exhibit low ESR at high frequencies and offer greater volumetric efficiency over competitive high-temperature BME ceramic capacitor devices.
- Low loss
- Low ESR and ESL
- High ripple current capability
- High thermal stability
- DC voltage ratings of 200 V to 2,000 V
- Formed J and L lead wires for surface mounting
- Operating temperature range of -55°C to +200°C
- Straight pin lead wires for through-hole mounting
- Capacitance offerings ranging from 11 nF to 1.2 µF
- Case codes (case sizes): 69 (2220) and 70 (2225)
- High-frequency performance and bulk capacitance in a reduced footprint
- Resonator circuits
- Defense and aerospace
- Hybrid electric vehicles (HEVs)
- Input and output filtering on power supplies often found on capacitor banks
|Datasheet||Image||Mfr part #||Description||Capacitance|
|L1GN702125KA10||KPS-MCL SMPS STACK CC70 1.2UF 20||1.2µF|
|L1GN69B224KA10||KPS-MCL SMPS STACK CC69 220NF 63||0.22µF|
|L1GN70D903KA05||KPS-MCL SMPS STACK CC70 90NF 100||0.09µF|
|L1GN69G183KA05||KPS-MCL SMPS STACK CC69 18NF 200||0.018µF|
|L1GN70G473KA10||KPS-MCL SMPS STACK CC70 47NF 200||0.047µF|