Type MLSH 125 C Hermetic Slimpack, Aluminum Electrolytic Capacitor The worlds only hermetically sealed aluminum electrolytic capacitor with glass-to-metal seal, type MLSH has extraordinary long life and rugged construction for the most demanding power electronics applications. Type MLSH has superior capacitance retention compared to axial wet tantalum capacitors at -55 C. Packaged in a robust stainless steel case capable of withstanding 80gs, it replaces 3 or more axial wet tantalum capacitors in parallel. Unlike wet tantalums that require voltage derating at temperatures above 85 C, type MLSH capacitors are rated for full operating voltage at 125 C and tested to 5000 hrs at rated voltage and temperature. Highlights - Hermetically sealed with no dry out - Alternative to axial wet tantalum - High capacitance retention -55 C - 5000 Hr DC life test - Up to 80g vibration Specifications Temperature Range 55 C to +125 C Rated Voltage Range 30 Vdc to 250 Vdc Capacitance Range 120 F to 3200 F Capacitance Tolerance 20% Leakage Current 0.002 CV A, 25 C and 5 mins. Ripple Current Multipliers Case Temperature 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 120 Hz 55 C +25 C 10 (5 - 20 Vdc), 3 (25 - 250 Vdc) DC Life Test 5000 h rated voltage at 125 C Capacitance 20% (<50 Vdc) Capacitance 10% (>50 Vdc) ESR 200% of limit DCL 100% of limit Shelf Life Test 5 years <=40 C, for HRMLSH 10 years <=40 C Capacitance 100% of limit ESR 100% of limit DCL 0.004 CV A 500 h 125 C Capacitance 100% of limit ESR 100% of limit DCL 0.002 CV A Vibration Standard MLSH Flatpack: 80g Mounting: Vibration capability is dependent upon mounting restraint. MIL-STD-202, Meth. 204, Condition H CDM Cornell Dubilier 140 Technology Place Liberty, SC 29657 Phone: (864)843-2277 Fax: (864)843-3800 Type MLSH 125 C Hermetic Slimpack, Aluminum Electrolytic Capacitor 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, 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 Large Sides Heatsinked Insulation C/W None 6.6 one Polyester 7.2 None 4.4 both Polyester 4.7 Typical Weight Case JK - 32g 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 for Ambient Temperature, No Heatsink. Heatsink Cooled Temperature rise from the hottest internal spot, the core, to ambient air is 2 T = I (ESR)(cc + ca), recommended max T of 30 C where cc is the thermal resistance from core to case and ca from case to ambient. To calculate maximum ripple capability with the MLSH attached to a heatsink use the maximum core temperature and the values for cc. Example As an illustration, suppose you operate an noninsulated MLSH172M050JK0C in 95 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 MLSH and the heatsink, and the total thermal resistance is 2.7 +6. 6 or 9.3 C/W. The power which would heat the core to 125 C is (125 - 95)/9. 3 or 3.2 W. For an ESR of 108 m, 3.2 W equates to a ripple current of 5.45 A. CDM Cornell Dubilier 140 Technology Place Liberty, SC 29657 Phone: (864)843-2277 Fax: (864)843-3800