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| 型号： | BZ05FB682ZSB |
| 厂商： | AVX Corporation |
| 文件页数： | 22/26页 |
| 文件大小： | 0K |
| 描述： | CAP SUPER 6.8MF 15V BZ05 SMD |
| 标准包装： | 100 |
| 系列： | BestCap® BZ |
| 电容： | 6.8mF |
| 电压 - 额定： | 15V |
| 容差： | -20%，+80% |
| ESR（等效串联电阻）： | 500 毫欧 |
| 寿命@温度： | 70°C 时为 1000 小时 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | BZ05，3 引线 |
| 包装： | 散装 |
| 尺寸/尺寸： | 0.787" L x 0.591" W（20.00mm x 15.00mm） |
| 高度 - 座高（最大）： | 0.228"（5.80mm） |
| 工作温度： | -20°C ~ 70°C |
| 其它名称： | 478-6277 |
BestCap Ultra-low ESR
?
High Power Pulse Supercapacitors
4.3 ENHANCING THE POWER
CAPABILITY OF PRIMARY BATTERIES
When electronic equipment is powered by a primary (non
rechargeable) battery, one of the limitations is the power
capability of the battery.
In order to increase the available current from the battery,
while maintaining a constant voltage drop across the battery
terminals, the designer must connect additional cells in
parallel leading to increased size and cost of both the
battery and the finished product.
When high power is only required for short periods more
sophisticated approaches can be considered. The tradition-
al approach involves using a high power rechargeable
battery, charged by a low power primary cell.
BestCap ? Supercapacitor benefits to the designer are:
? Substantially lower voltage drop for pulse durations of up
to 100msec.
? Substantially lower voltage drop at cold temperatures
(–20°C).
? Discharge current limited only by the ESR of the capacitor
The following analysis compares a primary battery connect-
ed in parallel to a Lithium Tionil Chloride, to the same
primary battery connected to a BestCap ? Supercapacitor.
Various current pulses (amplitude and duration) are applied
in each case.
BestCap ? 5.5V 100mF
BestCap Supercapacitors
A far superior solution, however, is the use of a BestCap ?
Supercapacitor, which is a device specifically designed to
deliver high power.
Traditional design:
Battery Powered
Pulse
250mA / 1msec
500mA / 1msec
750mA / 1msec
200mA / 100msec at –20°C
Voltage
Drop (mV)
?
25
50
75
232
Voltage
Drop (mV)
rechargeable battery
150
220
150
470
BestCap Supercapacitors
Primary
Battery
Rechargeable
Battery
Equipment Requiring
High Current Pulses
BestCap ? 3.5V 560mF
Pulse
Voltage
Drop (mV)
?
Voltage
Drop (mV)
rechargeable battery
Design using BestCap ? :
250mA / 100msec
500mA / 100msec
50
100
190
350
Primary
Battery
BestCap ?
Battery Powered
Equipment Requiring
High Current Pulses
750mA / 100msec
1500mA / 1msec
152
43
190
220
1500mA / 100msec
750mA / 100msec at –20°C
Additional
Characteristics
Maximum discharge current
(single pulse)
Number of Cycles
305
172
BestCap ?
Not limited
Not limited
350
470
Rechargeable
Battery
5A Maximum
40K to 400K
(to retain 80%
capacity)
21
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