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参数资料
| 型号： | 0157004DR |
| 元件分类： | 保险丝 |
| 英文描述： | VERY FAST BLOW ELECTRIC FUSE, 4A, 125VAC, 125VDC, 50A (IR), SURFACE MOUNT |
| 封装： | ROHS COMPLIANT |
| 文件页数： | 2/4页 |
| 文件大小： | 156K |
| 代理商： | 0157004DR |
Revised: April 16, 2009
Introduction to Circuit Protection
Transientology
96
2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Surface Mount Fuses
157 Series
NANO2 > 157 Fuse and Holder Combination
Please refer to www.littelfuse.com/series/157.html for current information.
Average Time Current Curves
Reflow Condition
Pb – Free assembly
Pre Heat
-Temperature Min (T
s(min))
150°C
-Temperature Max (T
s(max))
200°C
-Time (Min to Max) (t
s)
60 – 120 secs
Average ramp up rate (LiquidusTemp
(T
L) to peak
5°C/second max.
T
S(max) to TL - Ramp-up Rate
5°C/second max.
Reflow
-Temperature (T
L) (Liquidus)
217°C
-Temperature (t
L)
60 – 90 seconds
PeakTemperature (T
P)
250+0/-5 °C
Time within 5°C of actual peak
Temperature (t
p)
20 – 40 seconds
Ramp-down Rate
5°C/second max.
Time 25°C to peakTemperature (T
P)
8 minutes max.
Do not exceed
260°C
Soldering Parameters
Temperature Rerating Curve
0.001
0.010
0.100
1.000
10.000
0.01
0.1
1
10
100
TIME
IN
SECONDS
CURRENT IN AMPS
0.75
A
0.5
A
0.062A
10.0
A
8.0
A
7.0
A
6.30
A
5.0
A
4.0
A
3.50
A
3.0
A
2.50
A
2.0
A
1.50
A
1.0
A
0.375
A
0.25
A
0.2
A
0.125
A
0.315A
Note:
1. Derating depicted in this curve is in addition to the standard derating of 25% for
continuous operation.
Time
T
e
mperature
TP
TL
TS(max)
TS(min)
25
tP
tL
tS
time to peak temperature
(t 25C to peak)
Ramp-down
Ramp-up
Preheat
Critical Zone
TL to TP
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 0157005.DR | 功能描述:保险丝 260C 5A SMF NANO CLIP VFA 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 |
| 0157005.DR | 制造商:Littelfuse 功能描述:Surface Mount Fuse w/ Fuse Clip |
| 0157005.DRT | 功能描述:保险丝 SMF NANO CLIP SB 260V 5A 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 |
| 0157005.DRT | 制造商:Littelfuse 功能描述:FUSE W/ CLIP 5A SLOW BLOW SMD |
| 0157007.DR | 功能描述:保险丝 260C 7A SMF NANO CLIP VFA 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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