Page 1 Document number: 1015370.4 maxwell.com
DATASHEET K2 SERIES ULTRACAPACITORS
FEATURES AND BENEFITS*
Up to 1,000,000 duty cycles or
10 year DC life
High power density
650F to 3,000F capacitance
range
Threaded terminals or laser-
weldable posts
TYPICAL APPLICATIONS
Automotive subsystems
Wind turbine pitch control
Hybrid vehicles
Rail
Heavy industrial equipment
UPS & telecom systems
PRODUCT SPECIFICATIONS
ELECTRICAL
BCAP0650 BCAP1200 BCAP1500 BCAP2000 BCAP3000
Rated Capacitance1
650 F 1,200 F 1,500 F 2,000 F 3,000 F
Minimum Capacitance, initial1
650 F 1,200 F 1,500 F 2,000 F 3,000 F
Maximum Capacitance, initial1
780 F 1,440 F 1,800 F 2,400 F 3,600 F
Maximum ESRDC, initial1
0.8 m
0.58
m
0.47
m
0.35
m
0.29
m
Test Current for Capacitance and ESRDC
1
65 A
75 A 100 A 100 A 100 A
Rated Voltage
2.70 V 2.70 V 2.70 V 2.70 V 2.70 V
Absolute Maximum Voltage2
2.85 V 2.85 V 2.85 V 2.85 V 2.85 V
Absolute Maximum Current
680 A 930 A 1150 A 1500 A 1900 A
Leakage Current at
25°C
, maximum3
1.5 mA 2.7 mA 3.0 mA 4.2 mA 5.2 mA
TEMPERATURE
Operating temperature
(Cell case temperature)
Minimum -40
C
-40
C
-40
C
-40
C
-40
C
Maximum 65
C
65
C
65
C
65
C
65
C
Storage temperature
(Stored uncharged)
Minimum -40
C
-40
C
-40
C
-40
C
-40
C
Maximum 70
C
70
C
70
C
70
C
70
C
PHYSICAL
Mass, typical
160 g 260 g 280 g 360 g 510 g
Terminals
Threaded or
Weldable
Threaded or
Weldable
Threaded or
Weldable
Threaded or
Weldable
Threaded or
Weldable
Maximum Terminal Torque (K04)
14 Nm 14 Nm 14 Nm 14 Nm 14 Nm
Vibration Specification
ISO 16750, Table
14
ISO 16750, Table
14
ISO 16750, Table
14
ISO 16750, Table
14
ISO 16750, Table
14
Shock Specification
SAE J2464 SAE J2464 SAE J2464 SAE J2464 SAE J2464
*Results may vary. Additional terms and conditions, including the limited warranty, apply at the time of purchase.
See the warranty details and enclosed information for applicable operating and use requirements.
Page 2 Document number: 1015370.4 maxwell.com
DATASHEET K2 SERIES ULTRACAPACITORS
PRODUCT SPECIFICATIONS (Cont’d)
POWER & ENERGY BCAP0650 BCAP1200 BCAP1500 BCAP2000 BCAP3000
Usable Specific Power, Pd
4
6,800 W/kg 5,800 W/kg 6,600 W/kg 6,900 W/kg 5,900 W/kg
Impedance Match Specific Power, Pmax
5
14,000 W/kg 12,000 W/kg 14,000 W/kg 14,000 W/kg 12,000 W/kg
Specific Energy, Emax
6
4.1 Wh/kg 4.7 Wh/kg 5.4 Wh/kg 5.6 Wh/kg 6.0 Wh/kg
Stored Energy, Estored
7,11
0.66 Wh 1.22 Wh 1.52 Wh 2.03 Wh 3.04 Wh
SAFETY
Short Circuit Current, typical
(Current possible with short circuit from rated
voltage. Do not use as an operating current.)
3,400 A 4,700 A 5,700 A 7,700 A 9,300 A
Certifications
UL810a, RoHS UL810a, RoHS UL810a, RoHS UL810a, RoHS UL810a, RoHS
THERMAL
CHARACTERISTICS
Thermal Resistance
(Rca, Case to
Ambient), typical86.5
C/W
5.3
C/W
4.5
C/W
3.8
C/W
3.2
C/W
Thermal Capacitance (Cth), typical8
190 J/
C
300 J/
C
320 J/
C
410 J/
C
600 J/
C
Maximum Continuous Current
(T = 15oC)854 A
RMS
70 A
RMS
84 A
RMS
110 A
RMS
130 A
RMS
Maximum Continuous Current
(T = 40oC)888 A
RMS
110 A
RMS
140 A
RMS
170 A
RMS
210 A
RMS
TYPICAL CHARACTERISTICS
LIFE
DC Life at High Temperature
1
(held continuously at Rated Voltage and Maximum
Operating Temperature)
1,500 hours 1,500 hours 1,500 hours 1,500 hours 1,500 hours
Capacitance Change
(% decrease from minimum initial value) 20% 20% 20% 20% 20%
ESR Change
(% increase from maximum initial value) 100% 100% 100% 100% 100%
Projected DC Life at 25
C
1
(held continuously at Rated Voltage) 10 years 10 years 10 years 10 years 10 years
Capacitance Change
(% decrease from minimum initial value) 20% 20% 20% 20% 20%
ESR Change
(% increase from maximum initial value) 100% 100% 100% 100% 100%
Projected Cycle Life at 25
C
1, 9, 10
1,000,000 cycles 1,000,000 cycles 1,000,000 cycles 1,000,000 cycles 1,000,000 cycles
Capacitance Change
(% decrease from minimum initial value) 20% 20% 20% 20% 20%
Page 3 Document number: 1015370.4 maxwell.com
DATASHEET K2 SERIES ULTRACAPACITORS
LIFE (Cont'd)
ESR Change
(% increase from maximum initial value) 100% 100% 100% 100% 100%
Test Current 65 A 75 A 100 A 100 A 100 A
Shelf Life
(Stored uncharged at
25
C
)4 years 4 years 4 years 4 years 4 years
80%
90%
100%
110%
120%
130%
140%
150%
160%
170%
180%
-60 -40 -20 0 20 40 60 80
Temperature (°C)
Percentage change from value at 25°C
Capacitance
DC ESR
ESR AND CAPACITANCE VS TEMPERATURE
NOTES
1. Capacitance and ESRDC measured at 25°C using
specied test current per waveform below.
2. Absolute maximum voltage, non-repeated. Not to
exceed 1 second.
3. After 72 hours at rated voltage. Initial leakage current
can be higher.
4. Per IEC 62391-2, Pd =
5. Pmax =
6. Emax =
7. Estored =
0.12V2
ESRDC x mass
V2
4 x ESRDC x mass
½ CV2
3,600 x mass
8. ∆T=I
RMS
2 x ESR x R
ca
9. Cycle using specied test current per waveform
below.
10. Cycle life varies depending upon application-specic
characteristics. Actual results will vary.
11. Per United Nations material classication 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).
½ CV2
3,600
Page 4 Document number: 1015370.4 maxwell.com
DATASHEET K2 SERIES ULTRACAPACITORS
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.
L
M12 X 1.75 - 6g
14
D2
53 MAX
2.8
MAX
UNTHREADED
LENGTH LENGTH
2.8 MAX
UNTHREADED
14
M12 X 1.75 - 6g
D1
ANGLE ±0.5°
.XX ±.125
.X ±.25
9244 BALBOA AVENUE, SAN DIEGO, CA 92123 U.S.A
CHECKED
PROCESS ENGR
PRODUCTION ENGR
MECHANICAL ENGR
QUALITY ENGR
1
2
3
4
4
3
2
1
A
B
C
D D
C
B
A
DRAWN
DESIGN ENGR
TEST ENGR
B-PG1 REV A 7/01
SCALE
DOC. NO.
SHEET
DO NOT SCALE DRAWING
MATERIAL
FINISH
UNLESS OTHERWISE SPECIFIED, ALL DIMENSIONS
ARE IN MILLIMETERS AFTER PLATING.
BREAK EDGES 0.3
LATHE FINISH 63 µINCH, MILL FINISH 125 µINCH
X.XXX DIAMETERS
0.125 TIR X.XXX DIA
SURFACES
&
0.025mm
APPROVALS
DATE
SIZE
CAGE CODE
PART NO.
REV
B
68911
DESCRIPTION
CO
DESCRIPTION
REV
REVISIONS
2:1
1
OF
1
N/A
REV
5
3000-T
R.DUBINSKAYA
3/2/2011
PER IFS
PER IFS
X/X ±.5
NOTICE:
THE INFORMATION CONTAINED IN THIS
DOCUMENT IS MAXWELL CONFIDENTIAL
INFORMATION AND IS THE SOLE PROPERTY
OF MAXWELL TECHNOLOGIES. ANY
REPRODUCTION IN PART OR WHOLE
WITHOUT WRITTEN PERMISSION OF
MAXWELL TECHNOLOGIES IS PROHIBITED.
CAUTION
CONTAINS PARTS AND/OR ASSEMBLIES
SUSCEPTIBLE TO DAMAGE BY
ELECTROSTATIC DISCHARGE (ESD)
3RD ANGLE PROJECTION
1
PROTOTYPE
BCAPxxxx P270 K04
60.7 0.7
60.4 0.2
3.180 0.125
14.00 0.05 14.00 0.05
3.180 0.125
A
0.3
53 MAX
R 0.6 MAXR 0.6 MAX
0.5 MAX EDGE BREAK0.5 MAX EDGE BREAK
MODEL
P/N WITH HEAT SHRINK TUBING
P/N WITH LABELS
A
BCAP0650
108700, 108700B 108294, 108294B
51.5
BCAP1200
108702, 108702B 108316, 108316B
74
BCAP1500
108704, 108704B 108324, 108324B
85
BCAP2000
108706, 108706B 108325, 108325B
102
BCAP3000
108708, 108708B 108058, 108058B
138
ANGLE ±0.5°
.XXX ±.125
.XX ±.25
9244 BALBOA AVENUE, SAN DIEGO, CA 92123 U.S.A
CHECKED
PROCESS ENGR
PRODUCTION ENGR
MECHANICAL ENGR
QUALITY ENGR
C:\Rina\ALISON\
1
2
3
4
4
3
2
1
A
B
C
D D
C
B
A
DRAWN
DESIGN ENGR
TEST ENGR
B-PG1 REV A 7/01
SCALE
DOC. NO.
SHEET
DO NOT SCALE DRAWING
MATERIAL
FINISH
UNLESS OTHERWISE SPECIFIED
ALL DIMENSIONS ARE IN MILIMETERS AFTER
PLATING.
BREAK SHARP EDGES
USE MINIMUM BEND RADII
APPROVALS
DATE
SIZE
CAGE CODE
PART NO.
REV
B
68911
DESCRIPTION
CO
DESCRIPTION
REV
REVISIONS
SEE TABLE
1:1
1
OF
1
N/A
REV
1014428
1
BCAP, ENVELOPE ASSY, K2, J
Material
ANODIZE, TYPE II
CLASS 2, PANTONE
286 BLUE
Author
9/13/2010
1
1
-
1
.X ±.5
NOTICE:
THE INFORMATION CONTAINED IN THIS
DOCUMENT IS MAXWELL CONFIDENTIAL
INFORMATION AND IS THE SOLE PROPERTY
OF MAXWELL TECHNOLOGIES. ANY
REPRODUCTION IN PART OR WHOLE
WITHOUT WRITTEN PERMISSION OF
MAXWELL TECHNOLOGIES IS PROHIBITED.
CAUTION
CONTAINS PARTS AND/OR ASSEMBLIES
SUSCEPTIBLE TO DAMAGE BY
ELECTROSTATIC DISCHARGE (ESD)
3RD ANGLE PROJECTION
REFERENCE IFS FOR APPROVAL AND APPROVAL
DATES
1
PRODUCTION RELEASE
BCAPxxxx P270 K05
L
D2
D1
Page 5 Document number: 1015370.4 maxwell.com
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DATASHEET K2 SERIES ULTRACAPACITORS
Maxwell Technologies Korea Co., Ltd.
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Oce Tower, 15F #662
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DATASHEET K2 SERIES ULTRACAPACITORS
Part Description
Dimensions (mm)
Package Quantity
L (±0.3mm) D1 (±0.2mm) D2 (±0.7mm)
BCAP0650 P270 K04/05 51.5 60.4 60.7 30
BCAP1200 P270 K04/05 74 60.4 60.7 30
BCAP1500 P270 K04/05 85 60.4 60.7 30
BCAP2000 P270 K04/05 102 60.4 60.7 15
BCAP3000 P270 K04/05 138 60.4 60.7 15
Product dimensions are for reference only unless otherwise identied. Product dimensions and specications may change without notice.
Please contact Maxwell Technologies directly for any technical specications critical to application. All products featured on this datasheet are covered
by the following U.S. patents and their respective counterparts: 6643119, 7295423, 7342770, 7352558, 7384433, 7440258, 7492571, 7508651, 7580243,
7791860, 7791861, 7859826, 7883553, 7935155, 8072734, 8098481, 8279580, and patents pending.
MAXWELL TECHNOLOGIES, MAXWELL, MAXWELL CERTIFIED INTEGRATOR, ENABLING ENERGY’S FUTURE, BOOSTCAP, C CELL, D CELL and their respective
designs and/or logos are either trademarks or registered trademarks of Maxwell Technologies, Inc. and may not be copied, imitated or used, in whole or
in part, without the prior written permission from Maxwell Technologies, Inc. All contents copyright © 2013 Maxwell Technologies, Inc. All rights reserved.
No portion of these materials may be reproduced in any form, or by any means, without prior written permission from Maxwell Technologies, Inc.