Page 1
Document number: 1017105.4
maxwell.com
DATASHEET
BC SERIES ULTRACAPACITORS
FEATURES AND BENEFITS*
Up to 500,000 duty cycles or 10
year life
Low internal resistance
High power performance
310F and 350F capacitance
values
Radial terminals for PCB
mounting
TYPICAL APPLICATIONS
Wind turbine pitch control
Automotive subsystems
Small UPS systems
Consumer and industrial
electronics
Medical equipment
Portable tools
PRODUCT SPECIFICATIONS
ELECTRICAL
BCAP0310
BCAP0350
Rated Capacitance
1
310 F
350 F
Minimum Capacitance, initial
1
310 F
350 F
Maximum ESR
DC,
initial
1
2.2
mΩ
3.2
mΩ
Test Current for Capacitance and ESR
DC
1
31 A
35 A
Rated Voltage
2.70 V
2.70 V / 2.50 V
Absolute Maximum Voltage
2
2.85 V
2.85 V
Absolute Maximum Current
250 A
170 A
Leakage Current at 25
O
C, maximum
3
0.45 mA
0.30 mA
TEMPERATURE
Operating temperature range
(Cell case temperature)
Minimum
-40
O
C
-40
O
C
Maximum
65
O
C
65
O
C / 70
O
C
Storage temperature range
(Stored uncharged)
Minimum
-40
O
C
-40
O
C
Maximum
70
O
C
70
O
C
PHYSICAL
Mass, typical
60 g
60 g
Terminals
Radial Tab
Radial Tab
Vibration
IEC 60068.2.6, SAE J2380
IEC 60068.2.6, SAE J2380
Shock
IEC 60068.2.27, SAE J2464
IEC 60068.2.27, SAE J2464
POWER & ENERGY
BCAP0310
BCAP0350
Usable Specific Power, P
d
4
6,600 W/kg
4,600 W/kg
Impedance Match Specific Power
5
14,000 W/kg
9,500 W/kg
Specific Energy, E
max
6
5.2 Wh/kg
5.9 Wh/kg
Stored Energy
7,11
0.31 Wh
0.35 Wh
*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: 1017105.4
maxwell.com
DATASHEET
BC SERIES ULTRACAPACITORS
PRODUCT SPECIFICATIONS (Cont'd)
SAFETY
BCAP0310
BCAP0350
Short Circuit Current, typical
(Current possible with short circuit from rated
voltage. Do not use as an operating current.)
1,200 A
840 A
Certifications
UL810a, RoHS
UL810a, RoHS
LIFE
DC Life at High Temperature
1
(at Rated Voltage & Maximum Operating
Temperature)
1,500 hours
1,500 hours
Capacitance Change
(% decrease from minimum initial value)
20%
20%
ESR Change
(% increase from maximum initial value)
100%
100%
Projected DC Life at 25
°
C
1
(held continuously at Rated Voltage)
10 years
10 years
Capacitance Change
(% decrease from minimum initial value)
20%
20%
ESR Change
(% increase from maximum initial value)
100%
100%
Projected Cycle Life at 25
°
C
1,9,10
500,000 cycles
500,000 cycles
Capacitance Change
(% decrease from minimum initial value)
20%
20%
ESR Change
(% increase from maximum initial value)
100%
100%
Test Current
31 A
35 A
Shelf Life
(Stored uncharged at 25
o
C)
4 years
4 years
TYPICAL CHARACTERISTICS
THERMAL CHARACTERISTICS
Thermal Resistance
(R
ca,
Case to
Ambient), typical
8
10.9
°
C/W
10.9
°
C/W
Thermal Capacitance (C
th
), typical
8
60 J/
°
C
60 J/
°
C
Maximum Continuous Current
(ΔT = 15
o
C)
8
25 A
RMS
21 A
RMS
Maximum Continuous Current
(ΔT = 40
o
C)
8
41 A
RMS
34 A
RMS
Page 3
Document number: 1017105.4
maxwell.com
DATASHEET
BC SERIES ULTRACAPACITORS
ESR AND CAPACITANCE VS TEMPERATURE
NOTES
1. Capacitance and ESR
DC
measured at 25°C using
specifed 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,
P
d
=
5. P
max
=
6. E
max
=
7. E
stored
=
0.12V
2
ESR
DC
x mass
V
2
4 x ESR
DC
x mass
½ CV
2
3,600 x mass
8. ΔT=I
RMS
2
x ESR x R
ca
9. Cycle using specifed test current per waveform
below.
10. Cycle life varies depending upon application-specifc
characteristics. Actual results will vary.
11. Per United Nations material classifcation 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.
½ CV
2
3,600
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
Page 4
Document number: 1017105.4
maxwell.com
DATASHEET
BC SERIES ULTRACAPACITORS
Part Description
Dimensions (mm)
Package Quantity
L (
max
)
D (
max
)
BCAP0350 E270 T11
61.5
33.3
250
Product dimensions are for reference only unless otherwise identifed. Product dimensions and specifcations may change without notice.
Please contact Maxwell Technologies directly for any technical specifcations critical to application.
BCAP0350 E270 T11
10.1
3
.
5
6
.3
5
(3x)
5.2
10.1
7
2
.
6
(
3
x
)
12
4
5
°
DETAIL E
SCALE 2 : 1
Limit of Tin (Sn)
Plating Area
1.5
4.9
±0.5
7.7
3
Board thickness : 1.5 to 3.2 mm
Board drillings
E
F
64.9 Max
VIEW F
(4x4mm)
data matrix
code 16x16
Safety vent location
L
D
MOUNTING RECOMMENDATIONS
Do not reverse polarity. Please refer to document
number 1008238, available at maxwell.com for
soldering recommendations.
MARKINGS
Products are marked with the following information:
Rated capacitance, rated voltage, product number,
name of manufacturer, positive terminal, warning
marking, serial number.
Page 5
Document number: 1017105.4
maxwell.com
DATASHEET
BC SERIES ULTRACAPACITORS
Maxwell Technologies, Inc.
Global Headquarters
3888 Calle Fortunada
San Diego, CA 92123
USA
Tel: +1 858 503 3300
Fax: +1 858 503 3301
Maxwell Technologies SA
Route de Montena 65
CH-1728 Rossens
Switzerland
Tel: +41 (0)26 411 85 00
Fax: +41 (0)26 411 85 05
Maxwell Technologies, GmbH
Leopoldstrasse 244
80807 München
Germany
Tel: +49 (0)89 / 4161403 0
Fax: +49 (0)89 / 4161403 99
Maxwell Technologies
Shanghai Trading Co. Ltd.
Unit A2,C 12th Floor
Huarun Times Square
500 Zhangyang Road,
Pudong New Area
Shanghai 200122,
P.R . China
Phone: +86 21 3852 4000
Fax: +86 21 3852 4099
Maxwell Technologies Korea, Ltd.
Room 1524, D-Cube City
Office Tower, 15F #662
Gyeongin-Ro, Guro-Gu,
Seoul, 152-706
South Korea
Phone: +82 10 4518 9829
BCAP0310 P270 T10
3.5
6
.3
5
3.5
2
.6
5
12
3.5
1.2
4
5
°
DETAIL E
SCALE 2 : 1
Limit of Tin (Sn)
Plating Area
3.4
12°
1.9
33.3Max
7.7
61.5 Max
7.2±0.15
1.5
±0.5
3
E
F
65.55 Max
Boarddrillings
Boardthickness:1.5to3.2mm
VIEW F
(4x4mm)
data matrix
code 16x16
Safety vent location
Part Description
Dimensions (mm)
Package Quantity
L (max)
D (max)
BCAP0310 P270 T10
61.5
33.3
250
L
D
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 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.
Product dimensions are for reference only unless otherwise identifed. Product dimensions and specifcations may change without notice.
Please contact Maxwell Technologies directly for any technical specifcations critical to application. All products featured on this datasheet are covered by the following
U.S. patents and their respective foreign counterparts: 6643119, 7295423, 7307830, 7342770, 7352558, 7384433, 7492571, 7508651, 7791860, 7791861, 7883553, 7935155,
8072734, 8279580, and patents pending.