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## GCM21BR72A103KA37 Datasheet(PDF) 14 Page - Murata Manufacturing Co., Ltd.

 Part No. GCM21BR72A103KA37 Description CHIP MONOLITHIC CERAMIC CAPACITOR FOR AUTOMOTIVE Download 28 Pages Scroll/Zoom 100% Manufacturer MURATA [Murata Manufacturing Co., Ltd.] Direct Link http://www.murata.com Logo

## GCM21BR72A103KA37 Datasheet(HTML) 14 Page - Murata Manufacturing Co., Ltd.

 14 / 28 page5. DC Voltage and AC Voltage Characteristic1. The capacitance value of a high dielectric constant type capacitor changes depending on the DC voltage applied.Please consider the DC voltage characteristics when a capacitor is selected for use in a DC circuit.1-1. The capacitance of ceramic capacitors may change sharply depending on the applied voltage. (See figure)Please confirm the following in order to secure the capacitance.(1) Whether the capacitance change caused by theapplied voltage is within the range allowed or not.□ DC voltage characteristics(2) In the DC voltage characteristics, the rate of capacitancechange becomes larger as voltage increases.Even if the applied voltage is below the rated voltage.When a high dielectric constant type capacitor　is in acircuit that needs a tight (narrow) capacitance tolerance.Example: a time constant circuit., please carefullyconsider the characteristics of these capacitors, such astheir aging, voltage, and temperature characteristics.And check capacitors using your actual appliances at theintended environment and operating conditions.2. The capacitance values of high dielectric constant type capacitors change depending on the AC voltage applied.Please consider the AC voltage characteristics when selecting a capacitor to be used in a AC circuit.□ AC voltage characteristics6. Capacitance Aging1. The high dielectric constant type capacitors have the characteristic in which the capacitance value decreaseswith the passage of time.When you use a high dielectric constant type capacitors in a circuit that needs a tight (narrow) capacitancetolerance. Example: a time constant circuit., please carefully consider the characteristics of these capacitors,such as their aging, voltage, and temperature characteristics.And check capacitors using your actual appliances at the intended environment and operating conditions.Caution-60-50-40-30-20-1001020300.00.51.01.52.02.5AC Voltage (Vr.ms.)-100-80-60-40-2002002468DC Voltage (VDC)!JEMCGC-2702N14

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