參數(shù)資料
型號(hào): 04490.375MR
元件分類: 保險(xiǎn)絲
英文描述: SLOW BLOW ELECTRIC FUSE, 0.375A, 125VAC, 125VDC, 50A (IR), SURFACE MOUNT
封裝: HALOGEN FREE AND ROHS COMPLIANT
文件頁數(shù): 2/4頁
文件大?。?/td> 165K
代理商: 04490.375MR
Introduction to Circuit Protection
Introduction to Circuit Protection
Transientology
54
2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Surface Mount Fuses
449 Series
NANO2 > Slo-Blo > 449 Series
Please refer to www.littelfuse.com/series/449.html for current information.
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
3°C/second max.
T
S(max) to TL - Ramp-up Rate
3°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
Average Time Current Curves
Temperature Rerating Curve
TIME
IN
SECONDS
CURRENT IN AMPERES
0.01
0.1
1
10
100
1000
0
1
10
100
3A
4A 5A
1.
5A
1A
.750A
.500A
.375A
2.
5A
2A
3.
5A
Note:
1. Derating depicted in this curve is in addition to the standard derating of 25% for
continuous operation.
Wave Soldering Parameters
Temperature,
3 seconds max.
Time
T
emperature
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
相關(guān)PDF資料
PDF描述
04490.500MR SLOW BLOW ELECTRIC FUSE, 0.5A, 125VAC, 125VDC, 50A (IR), SURFACE MOUNT
04490.750MR SLOW BLOW ELECTRIC FUSE, 0.75A, 125VAC, 125VDC, 50A (IR), SURFACE MOUNT
0449001.MR SLOW BLOW ELECTRIC FUSE, 1A, 125VAC, 125VDC, 50A (IR), SURFACE MOUNT
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