Page 2 Document number: 3001976-EN.3 maxwell.com
Datasheet: 2.7V 10F ULTRACAPACITOR CELL
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1. Surge Voltage
Absolute maximum voltage, non-repetitive. Duration not to exceed 1 second.
2. “Typical” values represent mean values of production sample.
3. Rated Capacitance & ESRDC (measure method)
• Capacitance: Constant current charge (10 mA/F) to VR, 5 min hold at VR,
constant current discharge 10 mA/F to 0.1V.
e.g. in case of 2.7V 10F cell, 10 * 10 = 100 mA
• ESRDC: Constant current charge (10 mA/F) to VR, 5 min hold at VR, constant
current discharge (40 * C * VR[mA]) to 0.1 V.
e.g. in case of 2.7V 10F cell, charge with 10 * 10 = 100 mA and discharge with
40 * 10 * 2.7 = 1,080 mA
4. Maximum Leakage Current
• Current measured after 72 hrs at rated voltage and 25°C. Initial leakage current
can be higher.
• If applicable, module leakage current is the sum of cell and balancing circuit
leakage currents.
5. Maximum Peak Current
• Current needed to discharge cell/module from rated voltage to half-rated
voltage in 1 second.
where C is the capacitance (F);
I is the absolute value of the discharge current (A);
VR is the rated voltage (V);
V1 is the measurement start voltage, 0.8ⅹVR (V);
V2 is the measurement end voltage, 0.4ⅹVR (V);
t1 is the time from start of discharge to reach V1 (s);
t2 is the time from start of discharge to reach V2 (s);
ESRDC is the DC-ESR (Ω);
ΔV is the voltage drop during rst 10ms of discharge (V).
Typical ESRDC, Initial, 5 sec tested per Maxwell Application Note, “Test Procedures
for Capacitance, ESR, Leakage Current and Self-Discharge Characterizations of
Ultracapacitors” available at www.maxwell.com.
I =
where Δt is the discharge time (sec); Δt = 1 sec in this case.
• The stated maximum peak current should not be used in normal operation
and is only provided as a reference value.
6. Energy & Power (Based on IEC 62391-2)
• Maximum Stored Energy, Emax(Wh) =
• Gravimetric Specic Energy (Wh/kg) =
• Usable Specic Power (W/kg) =
• Impedance Match Specic Power (W/kg) =
• Presented Power and Energy values are calculated based on Rated
Capacitance & Rated (Max.) ESRDC, Initial values.
7. Cycle Life Test Prole
Cycle life varies depending upon application-specic characteristics. Actual
results will vary.
8. Temperature Rise at Constant Current
• ∆T=IRMS
2 x ESRDC x Rth
where ∆T: Temperature rise over ambient (°C)
IRMS: Maximum continuous or RMS current (A)
Rth: Thermal resistance, cell to ambient (°C/W)
ESRDC: Rated (Max.) ESRDC(Ω).
(Note: Design should consider EOL ESRDC for application temperature rise
evaluation.)
9. Per United Nations material classication UN3499, all Maxwell ultracapacitors
have less than 10 Wh capacity to meet the requirements of Special Provisions
361. Both individual ultracapacitors and modules composed of those
ultracapacitors shipped by Maxwell can be transported without being treated as
dangerous goods (hazardous materials) under transportation regulations.
10. BOL: Beginning of Life, rated initial product performance
EOL: End of Life criteria.
• Capacitance: 80% of min. BOL rating
• ESRDC: 2x max. BOL rating
½CVR
2
3,600
Emax
mass
0.12VR
2
ESRDC x mass
0.25VR
2
ESRDC x mass
½VR
∆t / C + ESRDC
I x (t2-t1)
V1-V2
C = ΔV
I
ESRDC =
Part Description
Dimensions (mm)
L
(±1.0)
D
(+0.5)
d
(±0.05)
A
(±0.5)
H1
(min.)
H2
(min.)
R
(min.)
a
(±0.5)
b
(±0.5)
BCAP0010 P270 S01 30.5 10.0 0.60 5.0 15.0 19.0 - - -
BCAP0010 P270 S12 30.5 10.0 0.60 5.0 - - 1.5 11.5 5.5
BCAP00010 P270 S01
When ordering, please reference the Maxwell Model Number below.
Maxwell Model Number: Maxwell Part Number: Alternate Model Number:
BCAP0010 P270 S01 133516 ESHSR-0010C0-002R7
BCAP0010 P270 S12 134092 -
BCAP00010 P270 S12