Type MLP 85 C Flatpack, Ultra Long Life, Aluminum Electrolytic Very Low Profile The MLPs high-energy storage and box-shape make it perfect for voltage holdup or filtering in military SEM-E modules, telecom circuit packs and computer cards. The MLP delivers up to 20 joules of energy storage in a 1/2 height with 50 years life at +45 C. You can readily heatsink it to double the ripple-current capability. The MLP is the square-peg component that fits the square-holes in electronic assemblies. Highlights - Low-profile replacement for snap-ins - Double the ripple capability with a heatsink - Nearly hermetic welded seal assures 50-year life - Withstands more than 80,000 feet altitude Specifications Temperature Range 55C to +85C 250 Vdc 40C to +85C 300 Vdc Rated Voltage Range 7.5 Vdc to 450 Vdc Capacitance Range 110 F to 47,000 F Capacitance Tolerance 20% Leakage Current 0.002 CV A, 25 C and 5 min. Ripple Current Multipliers Ambient Temperature, No Heatsink 45 C 55 C 65 C 75 C 85 C 1.00 0.90 0.75 0.56 0.27 Case Temperature 45 C 55 C 65 C 75 C 85 C 3.79 3.32 2.77 2.08 1.00 Frequency 10 kHz 50 Hz 60 Hz 120 Hz 360 Hz 1 kHz 5 kHz & up 7.5 to 63 V 0.94 0.95 1.00 1.04 1.05 1.06 1.06 80 to 450 V 0.80 0.85 1.00 1.17 1.24 1.28 1.29 Low Temperature Characteristics Impedance ratio: Z Z 55C +25C 10 (7.5 - 20 Vdc) 2 (25 250 Vdc) Impedance ratio: Z Z 20C +25C 4 (300450Vdc) Endurance Life Test 2000 h full load at +85 C Capacitance 10% ESR 200% of limit DCL 100% of limit Shelf Life Test 500 h at 85 C Capacitance 100% of limit ESR 100% of limit DCL 100% of limit Vibration All case sizes: 10g. MIL-STD-202, Meth. 204,Sine Swept, EIEC 60068-2-6 CDM Cornell Dubilier 140 Technology Place Liberty, SC 29657 Phone: (864)843-2277 Fax: (864)843-3800 Type MLP 85 C Flatpack, Ultra Long Life, Aluminum Electrolytic Very Low Profile 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. Thermal Resistance Case Length 1.5 2.0 3.0 Large Sides Heatsinked Insulation C/W C/W C/W None 2.9 2.1 1.4 one Polyester 3.3 2.4 1.6 None 2.7 1.9 1.2 both Polyester 2.9 2.1 1.3 ESL <30 nH measured 1/4 from case at 1 MHz Weight Case EK 30 g typical Case EA 42 g typical Case EB 66 g typical Terminals 18 AWG copper wire with 60/40 tin-lead electroplate, 20 amps max Double the Ripple Current Attach the MLP to an external heatsink and you can easily double the ripple current capability and assure long life through cooler operation. The broad, flat top and bottom on the MLP are ideal for cooling the capacitor and removing the heat caused by ripple current. Ripple Current Capability The ripple current capability is set by the maximum permissible internal core temperature, 88 C. This assures that the case does not inflate beyond 0.5 inch height. 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 MLP attached to a heatsink use the maximum core temperature and the values for cc. Example As an illustration, suppose you operate an insulated MLP332M080EB1C 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 MLP and the heatsink, and the total thermal resistance is 2.7 +1.7 or 4.4 C/W. The power which would heat the core to 88 C is (88-65)/4.4 or 5.2 W. For an ESR of 31 m,5.2 W equates to a ripple current of 13 A. CDM Cornell Dubilier 140 Technology Place Liberty, SC 29657 Phone: (864)843-2277 Fax: (864)843-3800