Datasheet
Radial Super Capacitor
RND is a trademark of Distrelec
Discharge conditions
Equipment
1) ARBIN super capacitor test system
2) Linear DC stabilized voltage power supply
3) Constant current discharging device
4) Voltage recording device
Internal resistance
AC impedance method
Measuring circuit
As shown in the measurement circuit for testing.
oscillator
a.c. ammeter
a.c. voltmeter
capacitor under test
Table 1 – Discharge conditions
Classification
HT、HV、X SE、HE
SP、 MK LR、 HP、 HEV、 LEV
Application Memory backup Energy storage Power Instantaneous power
Charge time
30min 30min 30min 30min
I(mA)
1×C 0.4×CU
R
4×CU
R
40×CU
R
U1 The value to be 80 % of the charging voltage (0.8×U
R
)
U2 The value to be 40 % of the charging voltage (0.4×U
R
)
NOTE C is the rated capacitance in F (Farad), and UR is the rated voltage in V (Volt).
NOTE : The discharge current I shall be chosen according to the following condition :
a) If ∆U3 exceeds 5 % (0.05 × UR) of the charging voltage in the initial characteristics, the current value may be reduced by
one half, one fifth or one tenth.
b) The number of significant digit for the discharge current value of 10 A or less shall be one digit; the second digit of the
calculated value should be rounded
c) The number of significant figures for the discharge current value exceeding 10 A shall be two digits; the third digit of the
calculated value should be rounded down.







