Datasheet

Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com

Surface Mount and Through-Hole Multilayer Ceramic Capacitors

KPS-MCL Low-Loss High Temperature 200°C SMPS Stacks, 200 – 2,000 VDC (Industrial Grade)

Soldering Process cont.

Recommendations for Hand-Soldering:

Care should be taken when hand-soldering large ceramic stacks. Excessive thermal shock on the ceramic material can lead

to cracking and reliability issues. To reduce risk of thermal shock, KEMET recommends solder reow, but if hand soldering

cannot be avoided, please see recommended guidelines below.

Pre-Heating

Stacks should be preheated to a temperature within 50°C of reow temperature. KEMET recommends a ramp rate of 2°C/

second to avoid thermal shock during the pre-heating process.

Hand-Soldering

When using a solder iron, keep tip of the iron as far away from ceramic body to avoid excessive heating.

Cool Down

After reow, stacks should be allowed to cool at a preferable rate of 2°C/second until room temperature is reached.

Storage & Handling

Ceramic capacitors should be stored in normal working environments. While the chips themselves are quite robust in

other environments, solderability will be degraded by exposure to high temperatures, high humidity, corrosive atmospheres,

and long term storage. In addition, packaging materials will be degraded by high temperature–reels and may soften or warp,

and tape peel force may increase. KEMET recommends that maximum storage temperature does not exceed 40°C and

maximum storage humidity does not exceed 70% relative humidity. Temperature uctuations should be minimized to

avoid condensation on the parts. Atmospheres should be free of chlorine and sulfur bearing compounds. For optimized

solderability chip stock should be used promptly, preferably within 1.5 years of receipt.