Aluminum Radial Leaded Capacitors Type MLP, 85 C Flatpack, Ultra-Long Life, Aluminum Type MLP 85 C 1/2-Inch Height, 50-Year Life 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 25 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. Ratings up to 250 V can operate at 75% of rated voltage up to 125 C if clamped or potted to prevent expanding beyond 1/2. Highlights w Low-profile replacement for snap-ins w Double the ripple capability with a heatsink w Near-hermatic welded seal assures 50-year life Specifications Operating Temperature: 55 C to +85 C up to 250 Vdc, 40 C to 85 C 300 Vdc & up Rated Voltage: 7.5 to 450 Vdc Capacitance: 110 F to 47,000 F 20% Leakage Current: 0.002 CV A 25 C and 5 min Cold Impedance: 55 C multiple of 25 C Z 4 for 7.5 V, 2 for 10 V to 250 V 20 C multiple of 25 C Z 4 for 300 V and up Ripple Current Multipliers: Case Temperature 45 C 55 C 65 C 75 C 85 C 3.79 3.32 2.77 2.08 1.00 Ambient Temperature, No Heatsink 45 C 55 C 65 C 75 C 85 C 1.00 0.90 0.75 0.56 0.27 Type MLS Frequency hot p 2.099 MORE 50 Hz 60 Hz 120 Hz 360 Hz 1 kHz 5 kHz 10 kHz & up Type MLS ripple p 2.099 7.5 to 63 V .94 .95 1.00 1.04 1.05 1.06 1.06 80 to 420 V .80 .85 1.00 1.17 1.24 1.28 1.29 Load Life: 2,000 h +85 C, Capacitance 10%, ESR 200% of limit, DCL 100% of limit, height 0.5 in. max Shelf Life: 500 h at 85 C, capacitance, ESR and DCL, initial requirements. Height 0.5 in max Thermal Resistance: Maximum core temperature 88 C Core to Case, bare can 1.1 C/W Core to Case, insulated 1.6 C/W Vibration: 10 Hz to 2 kHz, 0.06 pp max and 10 g, MIL-STD-202, Meth. 204 ESL: <30 nH measured 1/4 from case at 1 MHz Weight: Case EK 30g max. Case EB 66g max. 140 Technology Place CORNELL Liberty, SC 29657 DUBILIER (864) 843-2277, Fax (864) 843-3800 Type MLP, 85 C Flatpack, Ultra-Long Life, Aluminum Specifications Double the Ripple Current: Attach the MLP to an external where cc is the thermal resistance from core to case and heatsink and you can easily double the ripple current ca from case to ambient. To calculate maximum ripple capability and assure long life through cooler operation. capability with the MLP attached to a heatsink use the The broad, flat top and bottom on the MLP are ideal for maximum core temperature and the values for cc. cooling the capacitor and removing the heat caused by ripple current. As an illustration, suppose you operate an insulated MLP in 65 C air and attach it to a commercial heatsink with a Ripple Current Capability is set by the maximum permis- free-air thermal resistance of 2.7 C/W. Use a good thermal sible internal core temperature, 88 C. This assures that the grease between the MLP and the heatsink, and the total case does not inflate beyond 0.5 inch height. thermal resistance is 2.7 +1.6 or 4.3 C/W. The power which would heat the core to 88 C is (88-65)/4.3 or 5.35 W. Air Cooled. The ripple currents in the ratings tables are For an ESR of 100 m , 5.35 W equates to a ripple current for 85 C case temperatures. For air temperatures without of 6.5A. 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) Outline Drawings Style A: Mounting Tabs Style B: Four Leads Style C: No Tabs Style D: Hook Leads Case L Weight Code Length g EK 1.50 30 EB 3.00 66 140 Technology Place CORNELL Liberty, SC 29657 (864) 843-2277, Fax (864) 843-3800 DUBILIER