参数资料
| 型号： | F1206A2R00FWTR\3 |
| 厂商： | AVX Corporation |
| 文件页数： | 12/12页 |
| 文件大小： | 0K |
| 描述： | FUSE 2.00A 32V FAST THIN 1206 |
| 标准包装： | 10,000 |
| 系列： | Accu-Guard® |
| 保险丝类型： | 板安装（不包括管筒式） |
| 额定电流： | 2A |
| 额定电压 - DC： | 32V |
| 响应时间： | 快速 |
| 封装/外壳： | 1206（3216 公制） |
| 安装类型： | 表面贴装 |
| 尺寸/尺寸： | 0.122" L x 0.063" W x 0.047" H (3.10mm x 1.60mm x 1.20mm) |
| 额定电压时的断路容量： | 50A |
| 熔化 I²t： | 0.04 |
| 批准： | cUL，UL |
| 工作温度： | -55°C ~ 125°C |
| 包装： | 带卷 (TR) |
| DC 抗冷流： | 0.065 欧姆 |
Accu-Guard ?
SMD Thin-Film Fuse
DESIGNING FOR CURRENT PULSE SITUATIONS (CONT.)
5. Complex current pulse
If the pulse consists of several waveforms, all of them should
be evaluated separately, and then the total Joule integral
should be calculated as well.
200 μ sec/div
2A/div
Fig. 5a. Complex pulse, example #5.
6. Switch-on pulse and steady-state current
In Figure 6a, the switch-on pulse is a triangle pulse with a
5.1 x 10 -3 A 2 sec Joule integral of 5 msec duration; the 0.75A
fuse will meet this requirement, see Figure 6b.
2 msec/div
0.5A/div
Fig. 6a. Switch-on pulse and steady-state current,
example #6.
In Figure 5a, the Joule integral for the first triangle is
[(4.67A) 2 x 294 x 10 -6 sec]/3=2.14 x 10 -3 A2sec
and 0.75A fuse should meet this condition, see Figure 5b.
FUSE PRE-ARCING JOULE INTEGRALS
vs. PRE-ARCING TIME
FUSE PRE-ARCING JOULE INTEGRALS
vs. PRE-ARCING TIME
100
10
PRE-ARCING TIME l 2 t, A 2 sec
100
PRE-ARCING TIME l 2 t, A 2 sec
1
10 -1
10
1
10 -1
10 -2
10 -3
10 -4
0.75A
x
10 -2
10 -3
10 -4
0.75A
x x
10 -5
10 -7 10 -6 10 -5 10 -4 10 -3 10 -2 10 -1
PRE-ARCING TIME, sec
1
10
10 -5
10 -7 10 -6 10 -5 10 -4 10 -3 10 -2 10 -1
PRE-ARCING TIME, sec
1
10
Fig. 6b. Choice of 0.75A fuse, example #6.
Pre-arcing I 2 t
Fig. 5b. Choice of fuse, example #5.
Pre-arcing I 2 t
X
Maximum I 2 t design rule
I 2 t for sample switch-on pulse
X
Maximum I 2 t design rule
I 2 t for sample switch-on pulse
The steady-state current is 0.5A, and 1A fuse is typically rec-
ommended to meet the steady-state condition. Based on
steady-state current, the 1A fuse should be chosen for this
The Joule integral for the second triangle is
[(5.33A) 2 x 269 x 10 -6 sec]/3 = 2.55 x 10 -3 A 2 sec, and
0.75A fuse is suitable for this case also, see Figure 5b.
However, for the whole pulse, the Joule integral is
4.7 x 10 -3 A 2 sec, and the total duration is 563 μsec. For the
0.75A fuse, the Joule integral is only 8.6 x 10 -3 A 2 sec for this
pulse duration, so the 1A fuse should be chosen for this
application, see Figure 5b.
34
application.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| F1206B0R20FSTR | 功能描述:保险丝 1206 0.2AMPS SMD RoHS:否 制造商:Littelfuse 产品:Surface Mount Fuses 电流额定值:0.5 A 电压额定值:600 V 保险丝类型:Fast Acting 保险丝大小/组:Nano 尺寸:12.1 mm L x 4.5 mm W 安装风格: 端接类型:SMD/SMT 系列:485 |
| F1206B0R20FWTR | 制造商:AVX 制造商全称:AVX Corporation 功能描述:Accu-Guard, SMD Thin-Film Fuse |
| F1206B0R25FSTR | 功能描述:保险丝 0.25A SMD RoHS:否 制造商:Littelfuse 产品:Surface Mount Fuses 电流额定值:0.5 A 电压额定值:600 V 保险丝类型:Fast Acting 保险丝大小/组:Nano 尺寸:12.1 mm L x 4.5 mm W 安装风格: 端接类型:SMD/SMT 系列:485 |
| F1206B0R25FWTR | 功能描述:保险丝 1206 2.5amp 0.06ohm SMD RoHS:否 制造商:Littelfuse 产品:Surface Mount Fuses 电流额定值:0.5 A 电压额定值:600 V 保险丝类型:Fast Acting 保险丝大小/组:Nano 尺寸:12.1 mm L x 4.5 mm W 安装风格: 端接类型:SMD/SMT 系列:485 |
| F1206B0R37FSTR | 功能描述:保险丝 1206 0.37AMPS SMD RoHS:否 制造商:Littelfuse 产品:Surface Mount Fuses 电流额定值:0.5 A 电压额定值:600 V 保险丝类型:Fast Acting 保险丝大小/组:Nano 尺寸:12.1 mm L x 4.5 mm W 安装风格: 端接类型:SMD/SMT 系列:485 |
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