參數(shù)資料
型號: 0466.250NRHF
元件分類: 保險絲
英文描述: VERY FAST BLOW ELECTRIC FUSE, 0.25A, 125VAC, 125VDC, 50A (IR), SURFACE MOUNT
封裝: ROHS COMPLIANT
文件頁數(shù): 2/3頁
文件大?。?/td> 587K
代理商: 0466.250NRHF
Introduction to Circuit Protection
Introduction to Circuit Protection
Transientology
30
2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Surface Mount Fuses
Thin Film > 1206 Size > Very Fast-Acting > 466 Series
466 Series
Please refer to www.littelfuse.com/series/466.html for current information.
Average Time Current Curves
TIME
IN
SECONDS
CURRENT IN AMPERES
0.01
0.1
1
10
100
10
100
0.001
4A
3A
21/
2A
13/
4A
11/
2A
11/
4A
1A
3/4A
1/2A
3/8A
1/4A
1/8A
5A
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 – 180 seconds
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 – 150 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
Wave Soldering
260°C, 10 seconds max.
Note:
1. Rerating depicted in this curve is in addition to the standard rerating of 25% for
continuous operation.
Example:
For continuous operation at 70 degrees celsius, the fuse should be rerated as follows:
I = (0.75)(0.80)I
RAT = (0.60)IRAT
2. The temperature derating curve represents the nominal conditions. For questions
abouttemperaturederatingcurve,pleaseconsultLittelfusetechnicalsupportfor
assistance.
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
0466.375NRHF VERY FAST BLOW ELECTRIC FUSE, 0.375A, 125VAC, 125VDC, 50A (IR), SURFACE MOUNT
0466.500NRHF VERY FAST BLOW ELECTRIC FUSE, 0.5A, 63VAC, 63VDC, 50A (IR), SURFACE MOUNT
0466.750NRHF VERY FAST BLOW ELECTRIC FUSE, 0.75A, 63VAC, 63VDC, 50A (IR), SURFACE MOUNT
0466001.NRHF VERY FAST BLOW ELECTRIC FUSE, 1A, 63VAC, 63VDC, 50A (IR), SURFACE MOUNT
0466002.NRHF VERY FAST BLOW ELECTRIC FUSE, 2A, 63VAC, 63VDC, 50A (IR), SURFACE MOUNT
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