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參數(shù)資料
| 型號(hào)： | 0438006.WR |
| 元件分類： | 保險(xiǎn)絲 |
| 英文描述： | FAST BLOW ELECTRIC FUSE, 6A, 12VAC, 24VDC, 50A (IR), SURFACE MOUNT |
| 封裝： | HALOGEN FREE AND ROHS COMPLIANT |
| 文件頁(yè)數(shù)： | 2/3頁(yè) |
| 文件大小： | 532K |
| 代理商： | 0438006.WR |
Introduction to Circuit Protection
Introduction to Circuit Protection
Transientology
22
2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Surface Mount Fuses
438 Series
Ceramic Fuse > 438 Series
Please refer to www.littelfuse.com/series/438.html for current information.
Average Time Current Curves
0.001
0.01
0.1
1
10
100
.2
50
A
4A
3.
5A
3A
2.
5A
2A
1.
75
A
1.
5A
1.
25
A
1A
.5
0
0A
.3
75
A
6A
5A
.7
50
A
T
IM
E
IN
S
E
C
O
N
D
S
0.1
1
10
100
CURRENT IN AMPERES
reflow condition
Pb–freeassembly
pre Heat
-Temperature min (T
s(min))
150°C
-Temperature max (T
s(max))
200°C
-Time (min to max) (t
s)
60 – 180 seconds
Average ramp-up rate (liquidusTemp
(T
l) to peak)
3°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 – 150 seconds
peakTemperature (T
p)
260+0/-5 °C
Time within 5°c of actual peak
Temperature (t
p)
10 – 30 seconds
ramp-down rate
6°C/second max.
Time 25°c to peakTemperature (T
p)
8 minutes max.
Do not exceed
260°C
Soldering Parameters
Temperature Rerating Curve
40
60
80
100
120
140
-65
-45
-25
-5
15
35
55
75
95
115
135 155
TEMPERATURE (°C)
P
E
R
C
E
N
T
O
F
R
A
T
IN
G
Example:
For continuous operation at 75 degrees celsius, the fuse should be rerated as follows:
I = (0.80)(0.85)I
RAT = (0.68)IRAT
Note:
1. Rerating depicted in this curve is in addition to the standard rerating of 20% for
continuous operation.
Wave Soldering
260°C, 10 seconds max.
Time
Te
mperatur
e
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 |
|---|---|
| 0438.250WR | FAST BLOW ELECTRIC FUSE, 0.25A, 32VDC, 50A (IR), SURFACE MOUNT |
| 0438.375WR | FAST BLOW ELECTRIC FUSE, 0.375A, 32VDC, 50A (IR), SURFACE MOUNT |
| 0438.500WR | FAST BLOW ELECTRIC FUSE, 0.5A, 32VDC, 50A (IR), SURFACE MOUNT |
| 0438.750WR | FAST BLOW ELECTRIC FUSE, 0.75A, 32VDC, 50A (IR), SURFACE MOUNT |
| 0438001.WR | FAST BLOW ELECTRIC FUSE, 1A, 32VDC, 50A (IR), SURFACE MOUNT |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 043801.5WR | 功能描述:保險(xiǎn)絲 32V FA 0603 1.5A RoHS:否 制造商:Littelfuse 產(chǎn)品:Surface Mount Fuses 電流額定值:0.5 A 電壓額定值:600 V 保險(xiǎn)絲類型:Fast Acting 保險(xiǎn)絲大小/組:Nano 尺寸:12.1 mm L x 4.5 mm W 安裝風(fēng)格: 端接類型:SMD/SMT 系列:485 |
| 0438-0100-01 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Logic IC |
| 0438-0100-02 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Logic IC |
| 0438-0100-50 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Logic IC |
| 043802.5WR | 功能描述:保險(xiǎn)絲 32V FA 0603 2.5A RoHS:否 制造商:Littelfuse 產(chǎn)品:Surface Mount Fuses 電流額定值:0.5 A 電壓額定值:600 V 保險(xiǎn)絲類型:Fast Acting 保險(xiǎn)絲大小/組:Nano 尺寸:12.1 mm L x 4.5 mm W 安裝風(fēng)格: 端接類型:SMD/SMT 系列:485 |
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