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Jinmaoyuan's Long Life Capacitor Plan - News

Jinmaoyuan's Long Life Capacitor Plan

251 Published by Karen at June 20,2018

Life time of aluminum electrolytic capacitors highly depends upon temperature, and it is possible to extend the life time of the set by reducing the ambient temperature around the capacitors. Some circuit designs may be able to devise the arrangement of component parts to reduce the ambient temperature around the Aluminum electrolytic capacitors to satisfy the life time requirement of the set. However, LED lighting equipment (especially the bulb type) is designed to be very compact, and it is becoming difficult to satisfy the life time requirement by the devise of circuit design alone such as relocation of the component parts. JMY have produced 5000 hours and 8000 hours new products to satisfy the life time requirement of the set.and have own brand "YTF".

By using YTF 5000 hours and 8000 hours long life load capacitors, the following are expected:

(1) Longer life performance will be achievable even under severe operating conditions.

(2) Aluminum electrolytic capacitors can be used where MLCC or film capacitors were used before, and cost reduction is expected.

(3) Smaller sized capacitors can be used where the larger sized capacitors were used before, and contribute to downsizing of the set.

(4) While component parts locations and heat radiation were devised due to high heat rise in the set before, it will be eased out in the circuit designs to make the set compact.

Aluminum electrolytic capacitors deteriorate mainly by electrolyte loss in evaporation through sealing material and characteristics change of electrolyte itself. Thus, main countermeasures for long life performance are to protect electrolyte from evaporation and to prevent deterioration of electrolyte composition inside the capacitors as well as decent amount of electrolyte to be initially contained in the capacitor case.

We plan to expand it’s coverage in order to be able to contribute widely to other long term and severe condition usage applications as we look into those requirements.

As equipment set continues on miniaturization, internal ambient temperature continues to rise. More and more component parts are required to stand such long term use. A.E. caps have been widely used in these equipment sets because of large capacitance value and cost performance, although the limited life time performance that gives a direct impact to the equipment life performance. Longer life performance of Aluminum electrolytic capacitors is essential to secure the long term reliability of the electronic equipment.

Significant improvement in life time performance of Aluminum electrolytic capacitors has been achieved over a long time, and further improvement will be made while taking advantage of it’s strength, in the future.

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