MLSH

Type MLSH 125 °C Hermetic Slimpack, Ultra Long Life, Aluminum Electrolytic
The world’s 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 80g’s, 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 ºC
5000 Hr DC life test
Up to 80g vibration
Specifications
Temperature Range
–55 °C to +125 °C
Rated Voltage Range
30 Vdc to 50 Vdc
Capacitance Range
1700 µF to 3200 µF
Capacitance Tolerance
±20%
Leakage Current
≤ 0.002 CV µA, @ 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
0.87
1.32
1.22
1.12
1.00
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
50 Hz
60 Hz 120 Hz 360 Hz
5 kHz
10 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–55 ⁰C ∕ Z+25 ⁰C @120 Hz ≤3
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
500 h @ 125 °C
Capacitance 100% of limit
ESR 100% of limit
DCL 100% of limit
Vibration
Standard MLSH Flatpack: 80g
MIL-STD-202, Meth. 204, Condition H
Mounting: Vibration capability is dependent upon mounting restraint.
1 kHz
CDM Cornell Dubilier • 140 Technology Place • Liberty, SC 29657 • Phone: (864)843-2277 • Fax: (864)843-3800
Type MLSH 125 °C Hermetic Slimpack, Ultra Long Life, Aluminum Electrolytic
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 ºC 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
Large Sides
Heatsinked
one
both
Case Length
1.5"
Insulation
ºC/W
None
6.6
Polyester
7.2
None
4.4
Polyester
4.7
Typical Weight
Case JK - 32g
Terminals
18 AWG copper wire with 60/40 tin-lead electroplate, 20 amps max
Ripple Current Capability
The ripple current capability is set by the maximum permissible internal
core temperature, 125 ºC.
Air Cooled
The ripple currents in the ratings tables are for 85 ºC 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
∆T = I2(ESR)(θcc + θca), recommended max ∆T of 30 ºC
where θcc is the thermal resistance from core to case and θca 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 θcc.
Example
As an illustration, suppose you operate an noninsulated
MLSH172M050JK0C in 95 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 MLSH and the heatsink, and the total thermal resistance is 2.7
+6. 6 or 9.3º 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 mΩ, 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
Type MLSH 125 °C Hermetic Slimpack, Ultra Long Life, Aluminum Electrolytic
Part Numbering System
MLSH
322
M
030
JK
0
C
Type
Capacitance
Tolerance
Rated Voltage
Case Code
Insulation
Mounting Style
MLSH
322 =3200 µF
222 = 2200 µF
172 = 1700 µF
M=±20%
030 = 30 Vdc
040 = 40 Vdc
050 = 50 Vdc
JK, L=1.5 in.
* other sizes
available
0 = bare can
1 = polyester
C = two leads
Outline Drawing
1.00±.01
.50±.01
.015 MAX
Fill Hole Cover
1.50±.02
1.50 MIN
0.040DIA 18 AWG LEADS (TYP)
.50 MAX
- Stainless steel case
- All dimensions are in inches
- Dimensions are for bare can, non-insulated
CDM Cornell Dubilier • 140 Technology Place • Liberty, SC 29657 • Phone: (864)843-2277 • Fax: (864)843-3800
Type MLSH 125 °C Hermetic Slimpack, Ultra Long Life, Aluminum Electrolytic
Ratings
Cap
(µF)
Voltage
Catalog Part Number
3200
30 Vdc @ 125 °C
36 Vdc @ 105 °C
40 Vdc @ 85 °C
50 Vdc Surge @25 °C
40 Vdc @ 125 °C
48 Vdc @ 105 °C
55 Vdc @ 85 °C
63 Vdc Surge @25 °C
2200
50 Vdc @ 125 °C
60Vdc @ 105 °C
70Vdc @ 85 °C
75Vdc Surge @25 °C
1700
ESR max
25 °C (mΩ)
Ripple (A)
Case @ 85°C
120 Hz
10 kHz
120 Hz
10 kHz
MLSH322M030JK0C
0.103
0.098
6.6
6.8
MLSH222M040JK0C
0.105
0.1
6.6
6.8
MLSH172M050JK0C
0.108
0.101
6.6
6.8
Typical Performance Curves
Type MLSH Operating Life in Kilohours vs Ripple Current
Expected Operating Life, kh
1000
55°C
100
65°C
75°C
85°C
95°C
105°
10
115°C
1
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
1.1
1.2
1.3
1.4
1.5
Rated Ripple-Current Multiple
CDM Cornell Dubilier • 140 Technology Place • Liberty, SC 29657 • Phone: (864)843-2277 • Fax: (864)843-3800
Type MLSH 125 °C Hermetic Slimpack, Ultra Long Life, Aluminum Electrolytic
Typical Performance Curves
MLSH222M640JK0C
Cap vs. Frequency & Temp
2500
Capacitance (µF)
2000
1500
1000
500
0
1
10
125
100
105
85
1000
Freq (Hz)
65
45
10000
25
0
-20
100000
-40
1000000
-55
ESR vs. Frequency & Temp
10.0
ESR (Ω)
1.0
0.1
0.01
1
10
125
100
105
85
1000
Freq (Hz)
65
45
25
10000
0
-20
100000
-40
1000000
-55
|Z| vs. Frequency & Temp
10.0
|Z| (Ω)
1.0
0.1
0.01
1
10
125
100
105
85
1000
Freq (Hz)
65
45
25
10000
0
-20
100000
-40
1000000
-55
CDM Cornell Dubilier • 140 Technology Place • Liberty, SC 29657 • Phone: (864)843-2277 • Fax: (864)843-3800
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