ALUMINUM ELECTROLYTIC CAPACITORS
ALUMINUM ELECTROLYTIC CAPACITORS
JB Memory Back-Up Use series
Developed for memory back-up, with load life of 1000 hours...
Description
ALUMINUM ELECTROLYTIC CAPACITORS
JB Memory Back-Up Use series
Developed for memory back-up, with load life of 1000 hours at +85°C. Superior to electric double layer type capacitors in the following characteristics:: Better voltage maintenance. Speedier charge-up available due to low impedance feature. Wider operating temperature range of – 25 to +85°C. Compliant to the RoHS directive (2002/95/EC).
Specifications
Item Category Temperature Range Rated Voltage Range Rated Capacitance Range Capacitance Tolerance Leakage Current Voltage Maintenance StabiIity at Low Temperature
Performance Characteristics
– 25 to +85°C
5.5V
2.2 to 47mF
See Note 1
–10 to +50%
C (µA) (C = Rated capacitance value in mF)
See Note 2
More than 3.5V
See Note 3
Capacitance (– 25°C) / Capacitance (20°C) × 100 70%
Impedance (Ω) MAX. See Note 4
Capacitance (mF) 2.2 3.3 4.7 8.2 10 18 22 27 33 39 47
Impedance (Ω)
1.5
1.0
0.6
0.3
0.3
0.2
0.2
0.2
0.2
0.1
0.1
Endurance
Shelf Life Marking
The specifications listed at right shall be met when the capacitors are restored to 20°C after the rated voltage is applied for 1000 hours at 85°C.
Capacitance change Within ±30% of the initial capacitance value
Impedance
Within 4 times of the specified value
Leakage current
Less than or equal to the initial specified value
Voltage maintenance Satisfies the intial specified value
After storing the capacitors under no load at 85°C for 500 hours and then performing voltage treatment based on...
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