Flexible MLCC Termination Guaranteed 5mm Bend Robustness

This article based on Knowles Precision Devices blog explains capability of MLCC flexible terminations to withstand up to 5mm of bend on AEC-Q200 certified components.

Today, with the continued drive for more technical features in conventional cars and the increasing electrification of the drive train, the challenges facing electronics designers are ever increasing.

Alongside a drive to lower costs and smaller form factors, MLCC ceramic capacitors are being used in ever harsher applications and in ever increasing numbers. This is driving board population density upwards and with it concerns for reliability and particularly the likelihood of mechanical cracking. Thus electronic designers are now demanding flexibility that exceeds the current Automotive Electronic Council bend test specification (AEC-Q200 Rev D June 1, 2010).

The international requirement for bend testing is referred to in several different specifications:

Knowles Precision Devices remains the front runner for Flexible termination having introduced the award winning FlexiCap™ technology to the market.

FlexiCap™ polymer termination with its fibrous structure effectively reduces the mechanical stress being exerted onto the ceramic section of the capacitor by approximately 50%. During FlexiCap trials, some 10 million polymer terminated Class II X7R (2R1) capacitors were supplied to customers for evaluation. The applications targeted were those known to have a long history of problems due to capacitor cracking. During the course of these trials, not a single part was identified to have failed as a result of chip fracture.

AEC-Q200 certified components terminated with FlexiCap™ have a higher resistance to mechanical cracking meeting the demand by electronic design engineers for components that far exceed the minimum industry standard for flexibility, enabling Knowles Precision Devices to offer a guaranteed 5mm bend test deflection on AEC-Q200 components exceeding all of the requirements touched on above.

Exit mobile version