POLYTERM® FLEXIBLE SMD TERMINATION

2022-09-19
●Cracked capacitors can manifest themselves as latent defects including increased leakage current, intermittent opens, shorts or no problem found when field returned assemblies are analyzed. In some cases these defects can lead to catastrophic failure depending on the application energy available. Cracks could be introduced at virtually any point in the surface mount assembly process from pick and place, soldering and reflow, handling after assembly, de-paneling, and board level testing or equipment assembly (see below example of standard termination after flexing). Board flexure and handling are the predominant source of capacitor cracking. Polyterm® flexible SMD termination was developed to provide a flexible bond capable of withstanding higher physical strain than standard terminations. Standard terminations are more susceptible to cracking during processing, which may not be discovered by visual means. Over time these cracks can propagate into opposing electrodes within the capacitor possibly causing the capacitor to fail short and subsequent catastrophic failure. Polyterm, in addition to proper board layout practices, provides added protection and greatly reduces the possibility of the capacitor failing due to these board stresses.
●Performance verification of the Polyterm® flexible SMD termination was performed on the R15 (0805), R18 (1206), S41 (1210), S43 (1812), R29 (1808), S47 (2220), X43(1812) and X44 (1410) size capacitors. These tests were conducted based on industry standards. JIS-C-6429, IEC-384-1, IEC 60068-2-21.

Johanson Technology

capacitors

More

More

Technical Documentation

More

More

Please see the document for details

More

More

0805;1206;1210;1812;1808;2220;182;1410

English Chinese Chinese and English Japanese

01/15/2008

REV 1.5

513 KB

- The full preview is over. If you want to read the whole 11 page document,please Sign in/Register -
  • +1 Like
  • Add to Favorites

Recommend

All reproduced articles on this site are for the purpose of conveying more information and clearly indicate the source. If media or individuals who do not want to be reproduced can contact us, which will be deleted.

Contact Us

Email: