0440.750WR Littelfuse Inc, 0440.750WR Datasheet - Page 2
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0440.750WR
Manufacturer Part Number
0440.750WR
Description
T&R / FUSE 63V High I2T 1206 .750A
Manufacturer
Littelfuse Inc
Series
440r
Datasheet
1.0440.375WR.pdf
(4 pages)
Specifications of 0440.750WR
Fuse Type
Slow Blow, Time Lag
Voltage - Rated
63VAC, 63VDC
Current
750mA
Package / Case
1206 (3216 Metric)
Size / Dimension
0.126" L x 0.063" W x 0.032" H (3.20mm x 1.60mm x 0.82mm)
Mounting Type
Surface Mount
Operating Temperature
-55°C ~ 150°C
Dc Cold Resistance
0.462 Ohm
Melting I²t
0.09312
Color
-
Voltage Rating Vac
63V
Voltage Rating Vdc
63V
Fuse Current
750mA
Fuse Size Code
1206
Blow Characteristic
Fast Acting
Fuse Case Style
SMD
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
440.750WR
Note:
1. Derating depicted in this curve is in addition to the standard derating of 20% for
440 Series
Temperature Derating Curve
Soldering Parameters
Reflow Condition
Pre Heat
Average Ramp-Up Rate (Liquidus Temp
(T
T
Reflow
Peak Temperature (T
Time within 5°C of actual peak
Temperature (t
Ramp-down Rate
Time 25°C to peak Temperature (T
Do not exceed
Wave Soldering
continuous operation.
For continuous operation at 75 degrees celsius, the fuse should be derated as follows:
I = (0.80)(0.85)I
S(max)
L
140
120
100
) to peak)
80
60
40
-65
to T
L
-45
RAT
- Ramp-up Rate
- Temperature Min (T
- Temperature Max (T
- Time (Min to Max) (t
- Temperature (T
- Temperature (t
= (0.68)I
-25
p
)
RAT
-5
P
)
TEMPERATURE (°C)
15
L
L
)
) (Liquidus)
Introduction to Circuit Protection
260°C, 10 seconds max.
Introduction to Circuit Protection
35
s(min)
s(max)
s
)
P
55
)
)
)
75
150°C
200°C
60 – 180 seconds
3°C/second max.
5°C/second max.
217°C
60 – 150 seconds
260
10 – 30 seconds
6°C/second max.
8 minutes max.
260°C
95
+0/-5
115
Surface Mount Fuses
°C
Ceramic Fuse > 440 Series
135
155
2
Transientology
Average Time Current Curves
0.001
T
T
0.01
100
S(max)
0.1
10
S(min)
1
25
0.1
T
T
P
L
time to peak temperature
Please refer to www.littelfuse.com/series/440.html for current information.
(t 25ºC to peak)
1.0
t
Preheat
S
CURRENT IN AMPERES
Specifications are subject to change without notice.
Ramp-up
10.0
t
100.0
t
P
L
Time
© 2009 Littelfuse, Inc.
Critical Zone
Ramp-down
T
L
to T
1000.
P