Heatsink Cooled

Temperature rise from the internal hottest spot, the core, to heatsink is ∆T

= 0.44 (ESR)(θ

CHS+ θHS)*(Freq Multiplier), recommended max ΔT of 0.44ºC

where θ

CHS is the thermal resistance from core to heatsink and θHS from

case to heatsink.

Example

As an illustration, suppose you operate an insulated MLPS682M063EB1C

in 65 ºC air and attach it to a commercial heatsink with a free-air thermal

resistance of 1.0 ºC/W for one side. Using a good thermal grease between

the MLPS and the heatsink, and the total thermal resistance is 1.0 + 2.26

or 3.26 ºC/W. The power which would heat the core to 105 °C is (105 -

65)/3.26 or 12.27 W. For an ESR of 52 mΩ @ 120Hz, 12.27 W equates to a

ripple current of 15.36A @ 120Hz. In addition, the user should ensure that

the peak-to-peak capacitor voltage divided by the capacitor’s rated volt-

age VR should not exceed the greater of 10% or 0.01352 × (VDC Rated /

1[VDC])1/2. Therefore the Vpp limit for this item reduces the suggested max

ripple current to 12.25 Arms.

Type MLPS/MLPSR 105 °C FlatpackTM, Ultra Long Life, Aluminum Electrolytic

Very Low Profile

Part Numbering System

HV

HR

MLPS/MLPSR

100

M

200

JK

0

A

Optional Optional

Type

Capacitance Tolerance Rated Voltage

Case Code

Insulation

Mounting Style

High

Vibration*

High

Reliability

MLPS: C>3% lead

plating on wire leads

MLPSR: Lead free

plating on wire leads

100 =10 µF

101 = 100 µF

272 = 2700 µF

M=±20% 200 = 200 Vdc

See chart

below

0 = bare

1 = polyester

A - Straight leads

with mounting tabs

B - 4 leads no

mounting tabs

C - Straight leads

with no mounting

tabs

D - Hook leads with

mounting tabs

E - Hook leads with

no mounting tabs

* May not be

available for all sizes,

consult Factory

Case Code

"W"

"H"

"L"

"S"

EK

1.81

0.60

1.50

1.00

EA

1.81

0.60

2.00

1.00

EH

1.81

0.60

2.50

1.00

EB

1.81

0.60

3.00

1.00

Outline Drawing

Note: The polyester tape wrap may add up to 0.020 inches to the thickness and width of the capacitor.

CDM Cornell Dubilier • 140 Technology Place • Liberty, SC 29657 • Phone: (864)843-2277 • Fax: (864)843-3800