供应智能电表用0.33F/5.5V 法拉电容

Testing Items

测试项目

Criteria

标准

Testing Methods

测试方法

1.1工作电压Work voltage

5.5 V

1.2额定容量Rated capacitance

0.33 F

标准充电模式；额定电流下放电至0.1V；重复以上步骤20次。

取第五周放电容量C = I△t/△V,△V = 1.50～1.25V

1.3容量偏差Capacitance tolerance

-20%～ 80%

1.4*大工作电压Max. work voltage

6.0 V

1.5标称内阻Nominal impedance

交流内阻AC Imp

85Ω

直流内阻DC Imp

125 Ω

1.6工作温度Work temperature

-25～＋70℃

1.7储存温度Storage temperature

-40～＋85℃

序号item No.

项目Items

规格/条件

01

温度特性temperature characteristic

70℃时︱△C/C︱≤30%，*R≤规定值specified value(25℃)

-25℃时︱△C/C︱≤50%，*R≤4倍初始值less than four times of initial value（25℃）

02

高温负荷特性high temp. with load characteristic

70℃&plu*n;2加额定电压，1000h后，︱△C/C︱≤30%

，*R≤4倍规定值。Applied rated voltage for 1000h,less than four times of specified value.

03

高温无负荷特性high temp. without load characteristic

70℃&plu*n;2，1000&plu*n;4h后，︱△C/C︱≤30%，*R≤2倍规定值。Applied rated voltage for1000&plu*n;4h,*R becomes less two times of specified value.

04

湿热负荷特性Moisture with load characteristic

40℃&plu*n;2, 90--95%RH，240h，︱△C/C︱≤30%,IL≤2倍规定值,*R≤4倍规定值。︱△C/C︱Less than 2 times of specified value, and *R is less 4 times of specified value.