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MLP331M400EB0A Datasheet(PDF) 2 Page - Cornell Dubilier Electronics |
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MLP331M400EB0A Datasheet(HTML) 2 Page - Cornell Dubilier Electronics |
2 / 6 page 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 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 ºC. 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 ºC 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 ∆T = I2(ESR)(θcc + θca) where θcc is the thermal resistance from core to case and θca 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 θcc. Example As an illustration, suppose you operate an insulated MLP332M080EB1C in 65 ºC air and attach it to a commercial heatsink with a free-air thermal resistance of 2.7 ºC/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 ºC/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 mΩ,5.2 W equates to a ripple current of 13 A. Large Sides Heatsinked Case Length 1.5" 2.0" 3.0" Insulation ºC/W ºC/W ºC/W one None 2.9 2.1 1.4 Polyester 3.3 2.4 1.6 both None 2.7 1.9 1.2 Polyester 2.9 2.1 1.3 |
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