SMPS Stacked MLC Capacitors (SM Style) Technical Information on SMPS Capacitors 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 Not RoHS Compliant GENERAL SPECIFICATIONS FOR ALL DIELECTRIC TYPES Operating Temperature Range Insulation Resistance (125C, rated DC voltage) -55 to +125C 10KM min. or 100M-F min. whichever is less Voltage Ratings Thermal Shock Capabilities 50VDC through 500VDC (+125C) 5 cycles (-55C to +125C) Dielectric Withstanding Voltage Life Test Capabilities (1000 hours) 250% rated voltage for 5 seconds with 30 to 50mA charging current 200% rated voltage at +125C (500 Volt units 600VDC) (500 Volt units 750VDC) Insulation Resistance (25C, rated DC voltage) 100KM min. or 1000M-F min. whichever is less GENERAL SPECIFICATIONS FOR ALL DIELECTRIC TYPES C0G Dielectric N1500 X7R Dielectric Capacitance Range Capacitance Range Capacitance Range 0.01F to 15F 0.018F to 33F 0.1F to 390F (+25C, 1.0 0.2Vrms at 1kHz) (+25C, 1.0 0.2Vrms at 1kHz) (+25C, 1.0 0.2Vrms at 1kHz) Capacitance Tolerances Capacitance Tolerances Capacitance Tolerances 5%, 10%, 20% 5%, 10%, 20% 10%, 20%, +80%, -20% Temperature Characteristic Temperature Characteristic Temperature Characteristic 0 30 ppm/C -1500 250 ppm/C 15% Dissipation Factor Dissipation Factor Dissipation Factor 0.15% max. 0.15% max. 2.5% max. (+25C, 1.0 0.2Vrms at 1kHz) (+25C, 1.0 0.2Vrms at 1kHz) (+25C, 1.0 0.2Vrms at 1kHz) 012916 8SMPS Stacked MLC Capacitors (SM Style) Technical Information on SMPS Capacitors HOW TO ORDER AVX Styles: SM-1, SM-2, SM-3, SM-4, SM-5, SM-6 SM0 1 7 C 106 M A N 650 AVX Style Size Voltage Temperature Capacitance Capacitance Test Level Termination Height SM0 = Uncoated See 50V = 5 Coefficient Code Tolerance A = Standard N = Straight Lead Max Dimension SM5 = Epoxy Coated Dimensions 100V = 1 C0G = A (2 significant digits B = Hi-Rel* C0G/N1500: J = Leads formed in A chart 200V = 2 N1500 = 4 + number of zeros) J = 5% 5 = Standard/MIL** L = Leads formed out 120 = 0.120 500V = 7 X7R = C 1,000 pF = 102 K = 10% 6 = Hi-Rel/MIL*** P = P Style Leads 240 = 0.240 22,000 pF = 223 M = 20% Z = Z Style Leads 360 = 0.360 220,000 pF = 224 X7R: 480 = 0.480 1F = 105 K = 10% 650 = 0.650 10 F = 106 M = 20% 100 F = 107 Z = +80%, -20% See tables for capacitance available in specific height and dielectric ** Form, fit & function equivalent to MIL-PRF-49470 part. Note: Capacitors with X7R dielectric are not intended for applications across AC Applies to 50V rated parts only. No screening. supply mains or AC line filtering with polarity reversal. Contact plant for rec- *** Form, fit & function equivalent to MIL-PRF-49470 part. ommendations. Applies to 50V rated parts only. Hi-Rel screening the same as option B. Hi-Rel screening option. Screening consists of 100% Group A * (B Level), Subgroup 1 per MIL-PRF-49470. Typical ESR Performance (m) Aluminum Low ESR Solid Aluminum MLCC MLCC Electrolytic Solid Tantalum Electrolytic SMPS SMPS 100F/50V 100F/10V 100F/16V 100F/50V 4.7F/50V ESR 10KHz 300 72 29 3 66 ESR 50KHz 285 67 22 2 23 ESR 100KHz 280 62 20 2.5 15 ESR 500KHz 265 56 18 4 8 ESR 1MHz 265 56 17 7 7.5 ESR 5MHz 335 72 17 12.5 8 ESR 10MHz 560 91 22 20 14 Performance of SMPS capacitors can be simulated by downloading SpiCalci software program -