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Murata GCJ soft termination capacitors reduce cracks due to board bending, samples now available from Anglia
Murata the world leading manufacturer of ceramic capacitors has developed capacitor end termination technology that significantly reduces the risk of damage to surface mount multilayer capacitors when subjected to bending stress during the production process or in the end application.
The GCJ series of MLCCs incorporate the company's 'soft' termination technology, and are based on Murata's leading GCM series of MLCCs for automotive applications. The GCJ series is AEC-Q200 compliant.
When mounted on a board that is bent or flexed, either during the manufacturing process or in the field, MLCCs can develop cracks, affecting the capacitor's performance. The 'soft' termination type reduces the risk of stress damage by applying a layer of conductive polymer within the capacitor's electrodes. It is the elasticity of this polymer layer that reduces the bending stress in the capacitor. In tests conducted by Murata, 'soft' termination MLCCs were soldered with 200um thick solder to a typical 1.6mm thick PCB. The board was then flexed. The soft termination versions typically did not suffer any stress damage after the board had flexed 5mm.
The terminations of standard Murata MLCCs have three layers: the innermost copper, then nickel, then tin on the outside. In the GCJ series, after the copper layer is added, conductive polymer is applied to the outer electrode. Then the nickel and tin layers are added as normal. The process does not affect the equivalent series resistance (ESR) or current rating, so the GCJ series capacitors have the equivalent properties as their GCM counterparts.
Features
- AEC-Q200 qualified
- Soft termination reduces cracking
- Available in sizes from 0603 to 2220
- 6.3V to 1KV rated voltages
- Capacitance range from 220pF to 47uF
- 125°C and 150°C temperature ratings available
Click here for more information or to buy from Anglia Live.
Click here to read an article on how the GCJ soft termination MLCCs prevent cracking in harsh application conditions such as automotive.
Anglia are offering FREE samples of the GCJ series of soft termination MLCCs from Murata, please fill in the form below to register interest now.
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To register for FREE samples of the GCJ series of soft termination MLCCs from Murata, please fill in the form below
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FREE samples for UK and Ireland customers only, subject to availability.
For more information, or details on the full range of Murata products available from Anglia, please email info@anglia.com
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This news article was originally published in June 2017.
