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| 型号： | BZ025A404ZAB |
| 厂商： | AVX Corporation |
| 文件页数： | 3/26页 |
| 文件大小： | 0K |
| 描述： | CAP SUPER 400MF 5.5V BZ02 TH |
| 标准包装： | 100 |
| 系列： | BestCap® BZ |
| 电容： | 400mF |
| 电压 - 额定： | 5.5V |
| 容差： | -20%，+80% |
| ESR（等效串联电阻）： | 35 毫欧 |
| 寿命@温度： | 70°C 时为 1000 小时 |
| 安装类型： | 通孔 |
| 封装/外壳： | BZ02，4 引线 |
| 包装： | 散装 |
| 尺寸/尺寸： | 1.890" L x 1.181" W（48.00mm x 30.00mm） |
| 高度 - 座高（最大）： | 0.264"（6.70mm） |
| 工作温度： | -20°C ~ 70°C |
| 其它名称： | 478-6275 |
BestCap Ultra-low ESR
?
High Power Pulse Supercapacitors
INTRODUCING
BESTCAP ? : A NEW GENERATION OF PULSE SUPERCAPACITORS
Supercapacitors, (also referred to as Electrochemical
Capacitors or Double Layer Capacitors) have rapidly become
recognized, not only as an excellent compromise between
“electronic ” or “dielectric ” capacitors such as ceramic,
tantalum, film and aluminum electrolytic, and batteries (Figure
1), but also as a valuable technology for providing a unique
combination of characteristics, particularly very high energy,
power and capacitance densities.
There are however, two limitations associated with
conventional supercapacitors, namely: high ESR in the tens
of Ohms range, and high capacitance loss when required to
supply very short duration current pulses. BestCap ?
successfully addresses both of these limitations.
The capacitance loss in the millisecond region is caused by
the charge transfer (i.e. establishment of capacitance) being
carried out primarily by relatively slow moving ions in double
layer capacitors.
Figure 1. Specific Energy of Capacitor Types
10000
SPECIFIC ENERGY
1000
?
100
UM
TA
ME YTIC
PO TRO UM
C IN
UM
EL
TA
N
L
LY L
E
AL
R
ELECTROLYTIC
CAPACITOR
10
1
0.1
1
10
100
1000
10000
Capacitance (mF)
In the above-mentioned “electronic” capacitors, the charge
transfer is performed by fast electrons, thereby creating
virtually instant rated capacitance value. In the BestCap ? , a
unique proton polymer membrane is used – charge transfer
by protons is close to the transfer rate for electrons and
orders of magnitude greater than organic molecules. Figure
2 below illustrates the severe capacitance loss experienced
by several varieties of supercapacitors, under short pulse
width conditions. It can also be seen from Figure 2, how well
BestCap ? retains its capacitance with reducing pulse widths.
For comparison purposes, the characteristic of an equivalent
capacitance value aluminum electrolytic capacitor is shown
in Figure 2. The electrolytic capacitor is many times the vol-
ume of the BestCap ? .
Figure 2. Actual Capacitance vs. Pulse Width
100%
80%
60%
40%
20%
0%
?
EDLC-Electrochemical
double layer capacitor
Aluminum Electrolytic Capacitor
manufacturer A EDLC
manufacturer B EDLC
manufacturer C EDLC
1000
100
10
1
Pulse Width (msec)
2
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相关代理商/技术参数 |
参数描述 |
|---|---|
| BZ025A404ZABCZ | 制造商:AVX Corporation 功能描述:5.5volt 0.40F 80-20% |
| BZ025A404ZHB | 功能描述:超级电容/超级电容器 5.5v 400mF Tol. -20/+80% RoHS:否 制造商:Murata 电容:350 mF 容差: 电压额定值:4.2 V ESR:60 mOhms 工作温度范围:- 30 C to + 70 C 端接类型:SMD/SMT 引线间隔: 尺寸:18.5 mm W x 20.5 mm L x 3 mm H |
| BZ025A404ZLB | 功能描述:超级电容/超级电容器 5.5volt 400mF -80+20% RoHS:否 制造商:Murata 电容:350 mF 容差: 电压额定值:4.2 V ESR:60 mOhms 工作温度范围:- 30 C to + 70 C 端接类型:SMD/SMT 引线间隔: 尺寸:18.5 mm W x 20.5 mm L x 3 mm H |
| BZ025A404ZLBBI | 功能描述:超级电容/超级电容器 5.5volt 0.40F 80-20% RoHS:否 制造商:Murata 电容:350 mF 容差: 电压额定值:4.2 V ESR:60 mOhms 工作温度范围:- 30 C to + 70 C 端接类型:SMD/SMT 引线间隔: 尺寸:18.5 mm W x 20.5 mm L x 3 mm H |
| BZ029A124ZAB | 功能描述:超级电容/超级电容器 9v 120mF Tol. -20/+80% RoHS:否 制造商:Murata 电容:350 mF 容差: 电压额定值:4.2 V ESR:60 mOhms 工作温度范围:- 30 C to + 70 C 端接类型:SMD/SMT 引线间隔: 尺寸:18.5 mm W x 20.5 mm L x 3 mm H |
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