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A750BM397M0JAAE020 Datasheet(PDF) 7 Page - Kemet Corporation |
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A750BM397M0JAAE020 Datasheet(HTML) 7 Page - Kemet Corporation |
7 / 16 page 7 © KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC29606 • 864-963-6300 • www.kemet.com A4067_A750 • 12/13/2016 Single-Ended Conductive Polymer Aluminum Solid Electrolytic Capacitors A750 Series, 105°C Installing Conductive polymer aluminum solid electrolytic capacitors are prone to a change in leakage current due to thermal stress during soldering. The leakage current may increase after soldering or reflow soldering. Therefore, do not use these capacitors in circuits sensitive to leakage current. • Do not use in a high resistance, high voltage circuit. • Do not use in a coupling circuit. • Do not use in a time constant circuit. • Do not use in a circuits that are significantly affected by leakage current. A general principle is that lower temperature operation results in a longer, useful life of the capacitor. For this reason, it should be ensured that electrolytic capacitors are placed away from heat-emitting components. Adequate space should be allowed between components for cooling air to circulate, especially when high ripple current loads are applied. In any case, the maximum rated temperature must not be exceeded. • Do not deform the case of capacitors or use capacitors with a deformed case. • Verify that the connections of the capacitors are able to insert on the board without excessive mechanical force. Excessive force during insertion, as well as after soldering may cause terminal damage and affect the electrical performance. • Ensure electrical insulation between the capacitor case, negative terminal, positive terminal and PCB. • If the capacitors require mounting through additional means, the recommended mounting accessories shall be used. • Verify the correct polarization of the capacitor on the board. KEMET recommends, to ensure that the voltage across each capacitor does not exceed its rated voltage. Temperature Stability Characteristics Stable characteristics in a very low temperature range allows for less circuits in the design. Due to a solid polymer electrolyte, conductive polymer electrolytic capacitors feature higher conductivity. This results in a lower ESR which, coupled with high capacitance allows an aluminum polymer capacitor to replace several standard electrolytic capacitors, reducing the number of components and maximizing board space. The ESR of polymer capacitors is nearly constant within its operating temperature range, while the ESR of a standard electrolytic capacitor noticeably changes with temperature. 0.01 0.1 1 10 100 1,000 Temperature (ºC) −20 0 20 70 105 125 −55 Aluminum Electrolytic Conductive Polymer Electrolytic Temperature Stability Characteristics |
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