Datasheet

18© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard F3078_LDE • 2/19/2019
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
Surface Mount Polyethylene Naphthalate (PEN) Film Capacitor
LDE, Unencapsulated Stacked Chip, Size 1206 – 6054, 50 – 1,000 VDC (Automotive Grade)
Production process basic suggestions
In case of: Typical cause Typical solution
No solder joint on one
end termination
Landing area dimensions See landing areas suggestions, page 17
Solder paste quality See solder paste suggestions, page 17
Not-uniform solder paste thickness
on the landing areas
Set the dispensing solder paste machine properly
Wrong position of the capacitor
on the landing areas
Set the pick and place machine properly
Thermalproletemperature Seereowrecommendations,page14
Bad temperature distribution
inthereowoven
Checkthereowoventemperature
distribution and variations
No solder joint on both
end termination
Landing area dimensions See landing areas suggestions, page 17
Solder paste quality See solder paste suggestions, page 17
No solder paste on the landing areas Set the dispensing solder paste machine properly
Thermalproletemperature Seereowrecommendations,page14
Bad temperature distribution
inthereowoven
Checkthereowoventemperature
distribution and variations
Oxidated end terminations See moisture recommendations, page 15
Capacitor's body
mechanical deformation
Toolongtimeover217°C Seereowrecommendations,page14
Too long time within T
max
and T
max
−5°C Seereowrecommendations,page14
Too high temperature ramp rate Seereowrecommendations,page14
Capacitor damaged by a soldering iron See manual soldering recommendations, page 16
Capacitance drop (up to 20%)
Toolongtimeover217°C Seereowrecommendations,page14
Too long time within T
max
and T
max
−5°C Seereowrecommendations,page14
Too high temperature ramp rate Seereowrecommendations,page14
Capacitor damaged by a soldering iron See manual soldering recommendations, page 16
Capacitance drop (over 20%)
Capacitor damaged by a soldering iron See manual soldering recommendations, page 16
Note: Small ssures on the capacitor’s cutting surface are actually slight detachments of two adjacent metallized lm layers and have to be considered
only as an aesthetic issue related to the SMD Film Capacitors’ manufacturing process and technology.
Therefore, small ssures on SMD Film Capacitors are not comparable to cracks on SMD Ceramics.
Fissures do not inuence SMD Film Capacitors’ reliability in any way.