Datasheet

1) Charge and Discharge procedure (Figure 1)
A) Charge the capacitor using constant current I to rated voltage V
0
B) Keep rated voltage 5 mins
C) Discharge the capacitor using constant current I to half rated voltage, record discharge time T
1
during voltage change from V to V
1 2
D) Rest 2-5s, record voltage change ΔV
E) Discharge it to a very low voltage around 0.01V
F) V =85% V V =50% V
1 0 2 0
2)Capacitance
C: Capacitance (F)
I: Constant Discharge Current (A)
T : Discharge Time (S)
1
V -V : Voltage Change (V)
1 2
C=I*T / (V -V )
1 1 2
3)DC ESR
DC ESR: DC Equivalent Series Resistance (Ω)
ΔV: Voltage Change (V)
I: Constant Discharge Current (A)
DC ESR=ΔV/I
4)AC ESR
Measure AC ESR using LCR meter
Frequency: 1KHz
Voltage: fully discharge
REMARK: SPSCAP EDLC SHOULD BE DISCHARGED WITH RESISTOR FOR AT LEAST 12 HOURS
BEFORE MEASUREMENT OF CAPACITANCE OR ESR.
5
MEASURING METHOD
Document number: TC-SPC-3000-04-E-2017
Rev. & Date: V2.0 08-Apr-19
2.7V 3000F SCP-STB