参数资料
| 型号： | 20LR550SU |
| 厂商： | Littelfuse Inc |
| 文件页数： | 1/4页 |
| 文件大小： | 0K |
| 描述： | PTC RESETTABLE 20V 5.50A STRAP |
| 标准包装： | 500 |
| 系列： | POLYFUSE® LR |
| 电流 - 维持(Ih)： | 5.5A |
| 电流 - 跳闸(It)： | 10.5A |
| 电流 - 最大： | 100A |
| 电压 - 最大： | 20V |
| R最小/最大： | 0.009 ~ 0.022 欧姆 |
| 跳闸时间： | 5s |
| 封装/外壳： | 带 |
| 包装： | 散装 |
POLYFUSE ? Resettable PTCs
Axial Lead Battery Strap Type > LR Series
LR Series
Description
The new LR Series device provides reliable, noncycling
protection against overcharging and short circuits events
for rechargeable battery cells where resettable protection
is desired.
Features
? RoHS compliant and
lead–free
? Weldable Nickel terminals
? Slim, low pro?le design
? Compact design saves
board space
? Low resistance
? Fast trip time
Agency Approvals
Applications
AGENCY
AGENCY FILE NUMBER
E183209
? Rechargeable battery cell
protection
? Portable Computers
? Camcorders
R50119583
Electrical Characteristics
Part Number
I hold
(A)
I trip
(A)
V max
(Vdc)
I max
(A)
P d
max.
(W)
Maximum Time
To Trip
Current Time
(A) (Sec.)
R min
( Ω )
Resistance
R typ
( Ω )
R 1max
( Ω )
Agency
Approvals
15LR190
15LR190S
15LR260
15LR260S
15LR380
20LR450
20LR550
20LR600
20LR730
1.9
1.9
2.6
2.6
3.8
4.5
5.5
6.0
7.3
3.9
3.9
5.8
5.8
8.3
8.9
10.5
11.7
14.1
15
15
15
15
15
20
20
20
20
100
100
100
100
100
100
100
100
100
1.2
1.2
2.5
2.5
2.5
2.5
2.8
2.8
3.3
9.50
9.50
13.00
13.00
19.00
22.50
27.50
30.00
30.00
5.00
5.00
5.00
5.00
5.00
5.00
5.00
5.00
5.00
0.039
0.039
0.020
0.020
0.013
0.011
0.009
0.007
0.006
0.072
0.072
0.042
0.042
0.026
0.020
0.016
0.014
0.012
0.102
0.102
0.063
0.063
0.037
0.028
0.022
0.019
0.015
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
I hold = Hold current: maximum current device will pass without tripping in 20°C still air.
I trip = Trip current: minimum current at which the device will trip in 20°C still air.
V max = Maximum voltage device can withstand without damage at rated current (I max)
I max = Maximum fault current device can withstand without damage at rated voltage (V max )
P d = Power dissipated from device when in the tripped state at 20°C still air.
R min = Minimum resistance of device in initial (un-soldered) state.
R typ = Typical resistance of device in initial (un-soldered) state.
R 1max = Maximum resistance of device at 20°C measured one hour after tripping or re?ow
soldering of 260°C for 20 sec.
Caution: Operation beyond the speci?ed rating may result in damage and possible arcing
and ?ame.
? 2010 Littelfuse, Inc
Speci?cations are subject to change without notice.
Please refer to www.littelfuse.com/series/LR.html for current information.
113
Revised: June 4, 2010
LR Series
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 20LR550U | 功能描述:可复位保险丝 PTC 20V POLYFUSE STRAP TYPE 5.50A RoHS:否 制造商:Bourns 电流额定值: 电阻:7.5 Ohms 最大直流电压: 保持电流:0.1 A 安装风格:SMD/SMT 端接类型:SMD/SMT 跳闸电流:0.6 A 引线间隔: 系列:MF-PSHT 工作温度范围:- 40 C to + 125 C |
| 20LR600 | 制造商:LITTELFUSE 制造商全称:Littelfuse 功能描述:POLYFUSE㈢ Resettable PTCs |
| 20LR600SU | 功能描述:可复位保险丝 20V STRAP TYPE 6.00A POLYFUSE RoHS:否 制造商:Bourns 电流额定值: 电阻:7.5 Ohms 最大直流电压: 保持电流:0.1 A 安装风格:SMD/SMT 端接类型:SMD/SMT 跳闸电流:0.6 A 引线间隔: 系列:MF-PSHT 工作温度范围:- 40 C to + 125 C |
| 20LR600U | 功能描述:可复位保险丝 PTC 20V POLYFUSE STRAP TYPE 6.00A RoHS:否 制造商:Bourns 电流额定值: 电阻:7.5 Ohms 最大直流电压: 保持电流:0.1 A 安装风格:SMD/SMT 端接类型:SMD/SMT 跳闸电流:0.6 A 引线间隔: 系列:MF-PSHT 工作温度范围:- 40 C to + 125 C |
| 20LR730 | 制造商:LITTELFUSE 制造商全称:Littelfuse 功能描述:POLYFUSE㈢ Resettable PTCs |
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