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012916
SMPS Stacked MLC Capacitors
(SM Style) Technical Information on SMPS Capacitors
Operating Temperature Range
-55° to +125°C
Voltage Ratings
50VDC through 500VDC (+125ºC)
Dielectric Withstanding Voltage
250% rated voltage for 5 seconds with 30 to 50mA charging current
(500 Volt units @ 750VDC)
Insulation Resistance (25ºC, rated DC voltage)
100KMΩ min. or 1000MΩ-μF min. whichever is less
Insulation Resistance (125ºC, rated DC voltage)
10KMΩ min. or 100MΩ-μF min. whichever is less
Thermal Shock Capabilities
5 cycles (-55°C to +125°C)
Life Test Capabilities (1000 hours)
200% rated voltage at +125ºC (500 Volt units @ 600VDC)
GENERAL SPECIFICATIONS FOR ALL DIELECTRIC TYPES
GENERAL SPECIFICATIONS FOR ALL DIELECTRIC TYPES
Not RoHS Compliant
AVX is the original inventor of large capacitance value, stacked MLCC capacitors con-
structed with DIP leads. The SM-style, Switch Mode Power Supply (SMPS) capacitors
were introduced by AVX in 1980s. These capacitors are the closest to the ideal elec-
trical energy storage devices due to high CV product and extremely low ESR and ESL.
In addition to traditionally offered COG (Class I) and X7R (Class II) type dielectrics, AVX
introduces another class I, temperature compensated N1500 dielectric characterized
with very low dissipation factor. Thanks to considerably higher relative dielectric
constant of N1500 dielectric, the CV product is more than doubled in comparison to
ultra-stable COG dielectric, resulting in a significant reduction in the size of capacitor
and a significant improvement of volumetric efficiency.
The typical applications for different type dielectrics are:
COG: High frequency resonant capacitors, avionic AC line filters (400Hz to
800Hz), snubbers, timing circuits, high current repetitive discharge
N1500: Avionic AC line filters (400Hz to 800Hz), snubbers, high current repetitive
discharge, capacitive temperature compensation
X7R: General filtering, input and output filters in DC/DC converters, bulk filters,
DC link capacitors, motor drive filters, high current non-repetitive discharge
C0G Dielectric
Capacitance Range
0.01μF to 15μF
(+25ºC, 1.0 ± 0.2Vrms at 1kHz)
Capacitance Tolerances
±5%, ±10%, ±20%
Temperature Characteristic
0 ± 30 ppm/°C
Dissipation Factor
0.15% max.
(+25ºC, 1.0 ± 0.2Vrms at 1kHz)
N1500
Capacitance Range
0.018μF to 33μF
(+25ºC, 1.0 ± 0.2Vrms at 1kHz)
Capacitance Tolerances
±5%, ±10%, ±20%
Temperature Characteristic
-1500 ± 250 ppm/°C
Dissipation Factor
0.15% max.
(+25ºC, 1.0 ± 0.2Vrms at 1kHz)
X7R Dielectric
Capacitance Range
0.1μF to 390μF
(+25ºC, 1.0 ± 0.2Vrms at 1kHz)
Capacitance Tolerances
±10%, ±20%, +80%, -20%
Temperature Characteristic
±15%
Dissipation Factor
2.5% max.
(+25ºC, 1.0 ± 0.2Vrms at 1kHz)
