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DMT334R2S474M3DTA0 Datasheet(PDF) 11 Page - Murata Manufacturing Co., Ltd. |
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DMT334R2S474M3DTA0 Datasheet(HTML) 11 Page - Murata Manufacturing Co., Ltd. |
11 / 16 page Specification of Electrical Double Layer Capacitor Murata Manufacturing Co., Ltd. 11 11.2 STORAGE CONDITIONS 11.2.1 Storage condition without opening outer package. 30degC 60%RH for 1 year (Before opening outer package) This product cannot be baked. 11.2.2 Storage conditions after opening outer package. (1)Term of warranty of this device is 3 months after opening sealed package. (2)Storage environment Please keep device under the following conditions in sealed package. Temperature: 5-35 deg C and Humidity: no more than 70%RH. No condensation. Avoid any acidic or alkaline environment. Avoid excessive external force on this device while in storage. (3)Please keep device in sealed plastic package before use (4)Please do not apply any heat treatment before use. 11.3. CAUTION BEFORE USAGE (1)Rated voltage This device must be used within rated voltage. In case over voltage, electrolyte leakage or swelling may occur. This device has two individual cells connected electrically in series. Please make sure that voltage is less than 2.1V per cell for constant load. (2)Balance control When connecting 2 or more capacitors in series (This device itself consists of two individual capacitors connected electrically in series.), please make sure to control voltage balance of each capacitor for the following two purposes; - To prevent overvoltage: Prevent excessive voltage from being applied to any capacitor - To prevent shortening of the life time: By making capacitor voltage equal, variation in the rate of degradation can be controlled. It allows long-term use of capacitors. <Recommended balance condition> Discharge Frequency of capacitor under 10 times 10-100times 100 times or more 2.0V and over /cell 100k or less 47k or less 4.7k or less Under 2.0V/cell 100k or less 100k or less 10k or less Supposed condition: Temperature is always under 70degC. Within five years If using capacitor always at over 70degC, please consult a Murata representative. |
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