Type MLS 125 C Flatpack, Ultra Long Life, Aluminum Electrolytic Now Available with High Vibration and High Reliability Options Encased in rugged stainless steel, the MLS is perfect for high reliability military systems and applications operating above 85 C. For our highest performing 125 C Flatpacks, choose type HVMLS available in a special stainless steel case for high vibration applications up to 50g. Specify type HRMLS for high reliability Flatpacks which are subjected to MIL level burn-in processes to ensure established reliability. Highlights - Near-hermetic welded seal - Stainless-steel case - 100 years expected operating life - Withstands more than 80,000 feet altitude - Type HV up to 50g - Type HR, High Reliability Specifications Temperature Range 55 C to +125 C Rated Voltage Range 5.0 Vdc to 250 Vdc Capacitance Range 220 F to 47,000 F Capacitance Tolerance 20% Leakage Current 0.002 CV A, 25 C and 5 mins. Case Temperature Ripple Current Multipliers 45 C 55 C 65 C 75 C 85 C 95 C 105 C 115 C 125 C 1.41 1.32 1.22 1.12 1.00 0.87 0.71 0.50 0.00 Ambient Temperature, No Heatsink 45 C 55 C 65 C 75 C 85 C 95 C 105 C 115 C 125 C 0.63 0.58 0.54 0.49 0.44 0.38 0.31 0.22 0.00 Frequency 10 kHz & 50 Hz 60 Hz 120 Hz 360 Hz 1 kHz 5 kHz up 5 to 40 V 0.95 0.96 1.00 1.03 1.04 1.04 1.04 60 to 250 V 0.80 0.84 1.00 1.18 1.25 1.30 1.30 Low Temperature Characteristics Impedance ratio: Z Z 55 C +25 C 10 (5 - 20 Vdc) 2 (25 - 250 Vdc) Endurance Life Test 10,000 h full load at 85 C Capacitance 10% ESR 200% of limit DCL 100% of limit DC Life Test 2000 h at rated voltage &125 C Capacitance 10% ESR 200% of limit DCL 100% of limit Shelf Life Test 500 h at 125 C Capacitance 100% of limit ESR 100% of limit DCL 100% of limit Vibration Standard MLS Flatpack: 10g Mounting: Vibration capability is dependent upon mounting restraint. The 10 Hz to 2 kHz Sine Swept, 0.06 pp max and 10g. optional welded mounting tabs, alone, are not capable of sustaining the high Type HVMLS Flatpack 1.5 and 2.0 case length, 50g vibration levels. Type HVMLS Flatpack 2.5 and 3.0 case length, 30g To achieve the high vibration levels as published on right, additional mounting MIL-STD-202, Meth. 204, Sine Swept, IEC 60068-2-6 restraint is required. CDM Cornell Dubilier 140 Technology Place Liberty, SC 29657 Phone: (864)843-2277 Fax: (864)843-3800 For new designs please review the MLSG seriesType MLS 125 C Flatpack, Ultra Long Life, Aluminum Electrolytic Available with High Vibration and High Reliability Options Vibration Test Level The specimens, while deenergized or operating under the load conditions specified, shall be subjected to the vibration amplitude, frequency range, and duration specified for each case size. Amplitude The specimens shall be subjected to a simple harmonic motion having an amplitude of either 0.06-inch double amplitude (maximum total excursion) or peak level specified above (XXg peak), whichever is less. The tolerance on vibration amplitude shall be 10 percent. Frequency Range The vibration frequency shall be varied logarithmically between the approximate limits of 10 to 2,000 Hz. Sweep Time and Duration The entire frequency range of 10 to 2,000 Hz and return to 10 Hz shall be traversed in 20 minutes. This cycle shall be performed 12 times in each of three mutually perpendicular directions (total of 36 times), so that the motion shall be applied for a total period of approximately 12 hours. Interruptions are permitted provided the requirements for rate of change and test duration are met. High Reliability Test/Burn-in Established Reliability capacitors shall be subjected to a minimum of 100 percent of the dc rated voltage at 85 C for 48 hours minimum but not to exceed 96 hours. During this test, capacitors shall be adequately protected against temporary voltage surges of 10 percent or more of the test voltage. After burn-in, the capacitors shall be returned to room ambient conditions and the dc leakage, capacitance, and ESR shall be measured with respect to specified limits. Thermal Resistance Case Length 1.5 2.0 3.0 Large Sides Heatsinked Insulation C/W C/W C/W None 4.3 3.1 2.0 one Polyester 4.7 3.4 2.2 None 2.8 2.0 1.3 both Polyester 3.0 2.2 1.4 ESL 30 nH measured 1/4 from case at 1 MHz Weight Case EK 43 g typical Case EA 76 g typical Case EB 92 g typical Terminals 18 AWG copper wire with 60/40 tin-lead electroplate, 20 amps max Case Material Stainless Steel Ripple Current Capability The ripple current capability is set by the maximum permissible internal core temperature, 125 C. Air Cooled The ripple currents in the ratings tables are for 85 C case temperatures. For air temperatures without a heatsink use the multipliers Ambient Temperature, No Heatsink. Heatsink Cooled Temperature rise from the internal hottest spot, the core, to ambient air is 2 T = I (ESR)(cc + ca) where cc is the thermal resistance from core to case and ca from case to ambient. To calculate maximum ripple capability with the MLS attached to a heatsink use the maximum core temperature and the values for cc. Example As an illustration, suppose you operate an insulated MLS332M060EB1C in 65 C air and attach it to a commercial heatsink with a free-air thermal resistance of 2.7 C/W. Use a good thermal grease between the MLS and the heatsink, and the total thermal resistance is 2.7 +1.8 or 4.5 C/W. The power which would heat the core to 125 C is (125 - 65)/4.5 or 13.3 W. For an ESR of 31 m, 13.3 W equates to a ripple current of 20.7 A, however, the wire leads are rated for only 20 A. CDM Cornell Dubilier 140 Technology Place Liberty, SC 29657 Phone: (864)843-2277 Fax: (864)843-3800 For new designs please review the MLSG series