DATASHEET
K2 ULTRACAPACITORS - 2.85V/3400F
NEW
FEATURES AND BENEFITS
DuraBlue
TM
Shock and Vibration Technology
Up to 1,000,000 duty cycles or 10 year DC life*
Highest power and energy
Up to 18 kW/kg of Specific Power
1
Up to 4 Wh of Stored Energy
1
Threaded terminals or laser-weldable posts
TYPICAL APPLICATIONS
High shock and vibration environments
Automotive subsystems
Wind turbine pitch control
Hybrid vehicles
Rail
Heavy industrial equipment
UPS & telecom systems
PRODUCT SPECIFICATIONS
ELECTRICAL
Rated Voltage
Minimum Capacitance, initial
2
, rated value
Typical Capacitance, initial
1,2
Maximum ESR
DC
, initial
2
, rated value
Typical ESR
DC
, initial
1,2
TYPICAL CHARACTERISTICS
BCAP3400
2.85 V
3,400 F
3,500 F
0.28 mΩ
0.22 mΩ
6.7 kW/kg
8.5 kW/kg
14 kW/kg
18 kW/kg
7.4 Wh/kg
7.6 Wh/kg
3.84 Wh
3.95 Wh
ISO 16750-3,
Tables 12 & 14
SAE J2464,
IEC 60068-2-27, -29
TEMPERATURE
Operating temperature range
(Cell case temperature)
BCAP3400
-40
o
C
65
o
C
18 mA
3.0 V
2,000 A
Minimum
Maximum
ELECTRICAL
Leakage Current at 25°C, maximum
8
Absolute Maximum Voltage
9
Absolute Maximum Current
POWER & ENERGY
Minimum Usable Specific Power, P
d3
Typical Usuable Specific Power, P
d1,3
Minimum Impedance Match Specific Power, P
max4
Typical Impedance Match Specific Power, P
max1,4
Minimum Specific Energy, E
max
Typical Specific Energy, E
max1,5
Minimum Stored Energy, E
stored6,13
Typical Stored Energy, E
1,6,13
stored
5
LIFE
DC Life at High Temperature
2
Capacitance Change
(% decrease from rated value)
(held continuously at Rated Voltage & Maximum
Operating Temperature)
1,500 hours
25%
110%
10 years
20%
100%
1,000,000 cycles
20%
100%
4 years
SHOCK & VIBRATION
Vibration Specification
Shock Specification
ESR Change
(% increase from rated value)
Projected DC Life at 25°C
2
Capacitance Change
(% decrease from rated value)
(held continuously at Rated Voltage)
SAFETY
Short Circuit Current, typical
(Current possible with short circuit from rated
voltage. Do not use as an operating current.)
ESR Change
(% increase from rated value)
10,000 A
UL810a, RoHS, REACH
Projected Cycle Life at 25°C
2, 10, 11
Capacitance Change
(% decrease from rated value)
Certifications
THERMAL
Thermal Resistance (R
ca
, Case to Ambient), typical
Thermal Capacitance (C
th
), typical
Maximum Continuous Current (ΔT = 15°C)
7
Maximum Continuous Current (ΔT = 40°C)
7
3.2
o
C/W
640 J/
o
C
131 A
RMS
211 A
RMS
ESR Change
(% increase from rated value)
Shelf Life
(Stored uncharged at 25±10°C)
PHYSICAL
Mass, typical
Terminals
520 g
Threaded
12
or Weldable
*Results may vary. Additional terms and conditions, including the limited warranty, apply at the time of purchase.
See the warranty details for applicable operating and use requirements.
Page 1
Document number: 3000619-EN.3
maxwell.com
DATASHEET
K2 ULTRACAPACITORS - 2.85V/3400F
NEW
BCAP3400 P285 K04
NOTES
1.
2.
3.
Typical values represent mean values of a production sample.
Capacitance and ESR
DC
measured using 100 A test current at 25°C per
document number 1007239 available at maxwell.com.
0.12V
2
Per IEC 62391-2, P
d
=
ESR
DC
x mass
P
max
=
E
max
=
E
stored
=
V
2
4 x ESR
DC
x mass
½ CV
2
3,600 x mass
½ CV
2
3,600
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
Part Description
BCAP3400 P285 K04/05
Dimensions (mm)
L (±0.3mm)
138
D1 (±0.2mm)
60.4
D2 (±0.7mm)
60.7
Package Quantity
15
BCAP3400 P285 K05
∆T=I
RMS2
x ESR x R
ca
After 72 hours at rated voltage. Initial leakage current can be higher.
Absolute maximum voltage, non-repeated. Not to exceed 1 second.
Cycle using specified test current per waveform in K2 2.7V Series Datasheet.
Cycle life varies depending upon application-specific characteristics. Actual
results will vary.
Maximum Torque is 14 Nm.
Per United Nations material classification UN3499, all Maxwell ultracapacitors
have less than 10 Wh capacity to meet the requirements of Special
Provisions 361. When packaged according to the regulation, both individual
ultracapacitors and modules composed of those ultracapacitors shipped
by Maxwell can be transported without being treated as dangerous goods
(hazardous materials).
MOUNTING RECOMMENDATIONS
Do not reverse polarity. Please refer to document number 1016419, available at
maxwell.com for welding recommendations.
MARKINGS
Products are marked with the following information: Rated capacitance, rated
voltage, product number, name of manufacturer, positive terminal, warning
marking, serial number.
Product dimensions are for reference only unless otherwise identified. Product dimensions and specifications may change without notice.
Please contact Maxwell Technologies directly for any technical specifications critical to application. All products featured on this datasheet are covered by the following U.S. patents and their respective foreign counterparts:
6643119, 7295423, 7342770, 7352558, 7384433, 7440258, 7492571, 7508651, 7580243, 7791860, 7791861, 7859826, 7883553, 7935155, 8072734, 8098481, 8279580.
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Document number: 3000619-EN.3
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