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DATASHEET
K2 ULTRACAPACITORS - 2.85V/3400F
FEATURES AND BENEFITS
NEW
TYPICAL APPLICATIONS
DuraBlue 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 Power1
Up to 4 Wh of Stored Energy1
Threaded terminals or laser-weldable posts
TM
High shock and vibration environments
Automotive subsystems
Wind turbine pitch control
Hybrid vehicles
Rail
Heavy industrial equipment
UPS & telecom systems
PRODUCT SPECIFICATIONS
TYPICAL CHARACTERISTICS
ELECTRICAL
BCAP3400
TEMPERATURE
BCAP3400
Rated Voltage
2.85 V
Operating temperature range
Minimum Capacitance, initial2, rated value
3,400 F
(Cell case temperature)
Typical Capacitance, initial1,2
3,500 F
Minimum
-40oC
Maximum ESR DC , initial 2, rated value
0.28 mΩ
Maximum
65oC
Typical ESR DC , initial1,2
0.22 mΩ
ELECTRICAL
Leakage Current at 25°C, maximum8
POWER & ENERGY
18 mA 6.7 kW/kg
Absolute Maximum Voltage 9
3.0 V
8.5 kW/kg
Absolute Maximum Current
2,000 A
Minimum Impedance Match Specific Power, Pmax4
14 kW/kg
LIFE
Typical Impedance Match Specific Power, Pmax1,4
18 kW/kg
Minimum Specific Energy, Emax5
7.4 Wh/kg
Typical Specific Energy, Emax
7.6 Wh/kg
Minimum Usable Specific Power, Pd
3
Typical Usuable Specific Power, Pd1,3
1,5
Minimum Stored Energy, E stored6,13
3.84 Wh
Typical Stored Energy, E stored1,6,13
3.95 Wh
SHOCK & VIBRATION
(held continuously at Rated Voltage & Maximum
Operating Temperature)
Capacitance Change
(% decrease from rated value)
ESR Change
(% increase from rated value)
ISO 16750-3,
Tables 12 & 14
Vibration Specification
SAE J2464,
IEC 60068-2-27, -29
Shock Specification
Projected DC Life at 25°C2
(held continuously at Rated Voltage)
Capacitance Change
(% decrease from rated value)
ESR Change
SAFETY
(% increase from rated value)
Short Circuit Current, typical
10,000 A
(Current possible with short circuit from rated
voltage. Do not use as an operating current.)
Certifications
DC Life at High Temperature2
UL810a, RoHS, REACH
THERMAL
Projected Cycle Life at 25°C2, 10, 11
Capacitance Change
(% decrease from rated value)
ESR Change
(% increase from rated value)
Shelf Life
Thermal Resistance (Rca, Case to Ambient), typical
3.2oC/W
Thermal Capacitance (Cth), typical
640 J/oC
Maximum Continuous Current (ΔT = 15°C)7
131 ARMS
PHYSICAL
Maximum Continuous Current (ΔT = 40°C)7
211 ARMS
Mass, typical
(Stored uncharged at 25±10°C)
Terminals
*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
1,500 hours
25%
110%
10 years
20%
100%
1,000,000 cycles
20%
100%
4 years
520 g
Threaded12 or Weldable
DATASHEET
K2 ULTRACAPACITORS - 2.85V/3400F
BCAP3400 P285 K04
NEW
NOTES
1.
Typical values represent mean values of a production sample.
2.
Capacitance and ESRDC measured using 100 A test current at 25°C per
document number 1007239 available at maxwell.com.
0.12V2
Per IEC 62391-2, Pd =
ESRDC x mass
3.
BCAP3400 P285 K05
V2
4 x ESRDC x mass
4.
Pmax =
5.
Emax =
6.
Estored =
7.
∆T=IRMS2 x ESR x Rca
8.
9.
10.
11.
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.
½ CV2
3,600 x mass
½ CV2
3,600
12. Maximum Torque is 14 Nm.
Dimensions (mm)
Part Description
L (±0.3mm)
D1 (±0.2mm)
D2 (±0.7mm)
Package Quantity
BCAP3400 P285 K04/05
138
60.4
60.7
15
MOUNTING RECOMMENDATIONS
Do not reverse polarity. Please refer to document number 1016419, available at
maxwell.com for welding recommendations.
13. 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).
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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