参数资料
型号: 0448007.MR
厂商: Littelfuse Inc
文件页数: 3/4页
文件大小: 0K
描述: FUSE 7A 125V V/FA NANO2 SMD
标准包装: 1
系列: NANO²® 448
保险丝类型: 板安装(不包括管筒式)
额定电流: 7A
额定电压 - AC: 125V
额定电压 - DC: 125V
响应时间: 快速
封装/外壳: 2-SMD,方形端块
安装类型: 表面贴装
尺寸/尺寸: 0.240" L x 0.106" W x 0.106" H(6.10mm x 2.69mm x 2.69mm)
额定电压时的断路容量: 50A
熔化 I²t: 13.92
批准: CSA,UL,PSE
工作温度: -55°C ~ 125°C
包装: 标准包装
DC 抗冷流: 0.009 欧姆
其它名称: F1642-6
F1642-6-ND
F1642-DKR-ND
F1642DKR
Surface Mount Fuses
NANO 2? > Very Fast-Acting > 448 Series
Average Time Current Curves FREE VERY FAST ACTING FUSE
Temperature Rerating Curve
448 SERIES NANO LEAD
100
10
1
0.1
Note:
1. Derating depicted in this curve is in addition to the standard derating of 25% for
continuous operation.
0.01
0.001
0 . 1
1
1 0
1 0 0
1 0 0 0
CURRENT IN AMPS
Soldering Parameters
Reflow Condition
- Temperature Min (T s(min) )
Pre Heat - Temperature Max (T s(max) )
- Time (Min to Max) (t s )
Average ramp up rate (Liquidus Temp
(T L ) to peak
T S(max) to T L - Ramp-up Rate
Pb – Free assembly
150°C
200°C
60 – 120 secs
5°C/second max.
5°C/second max.
T P
T L
T S(max)
T S(min)
Preheat
t S
Ramp-up
t P
t L
Critical Zone
T L to T P
Ramp-down
Reflow
- Temperature (T L ) (Liquidus)
- Temperature (t L )
217°C
60 – 90 seconds
25
time to peak temperature
(t 25oC to peak)
Time
Peak Temperature (T P )
260
+0/–5
°C
Time within 5°C of actual peak
Temperature (t p )
Ramp-down Rate
Time 25°C to peak Temperature (T P )
Do not exceed
Wave Soldering Parameters
20 – 40 seconds
5°C/second max.
8 minutes max.
260°C
260°C Peak
Temperature, 10
seconds max.
? 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 12/19/13
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