Littelfuse 0451007.MR
Cross Number:
Item Description:
FUSE BRD MNT 7A 125VAC/VDC 2SMD
- Category: FUSE
- Is Military Spec.: No
- Availability: In Stock
- Qty Available: 6000
| Qty | Price |
|---|---|
| 1 - 450 | $0.33000 |
| 451 - 1,350 | $0.25750 |
| 1,351 - 3,110 | $0.22500 |
| 3,111 - 4,760 | $0.21000 |
| 4,761 + | $0.19500 |
Technical Document
DISCLAIMER: The information provided herein is solely for informational purposes. Customers must be aware of the suitability of this product for their application, and consider that variable factors such as Manufacturer, Product Category, Date Codes, Pictures and Descriptions may differ from available inventory.
Surface Mount Fuses
57
© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
451/453 Series
NANO
2®
> Very Fast-Acting > 451/453 Series
451/453 Series
Please refer to www.littelfuse.com/series/451.html
or /453.html for current information.
451/453 Series Fuse
Description
The Nano
2
SMF Fuse is a very small, Wire-in-Air (WIA)
square shape surface mount fuse which is very suitable
for the secondary side circuit over-current protection
applications and is designed for PCB using surface mount
technology.
Agency Approvals
AGENCY AGENCY FILE NUMBER AMPERE RANGE
E10480 6.3A - 15A
LR29862 62mA - 15A
PS
E
NBK030205-E10480B
NBK101105-E184655
1A - 5A
6.3A - 10A
E10480 62mA - 5A
Electrical Characteristics for Series
Features
• Veryfastacting
• Smallsize
• Widerangeofcurrent
rating available (62mA
to 15A)
• Wideoperating
temperature range
• Lowtemperature
de-rating
• RoHScompliant
• HalogenFree
% of Ampere
Rating
Ampere Rating Opening Time
100% 1/16 –15 4 hours, Minimum
200%
1/16 –10 5 sec., Maximum
12 –15 20 sec., Maximum
PS
E
Applications
• NotebookPC
• LCD/PDPTV
• LCDmonitor
• LCD/PDPpanel
• LCDbacklightinverter
• PortableDVDplayer
• Powersupply
• Networking
• PCserver
• Coolingfansystem
• Storagesystem
• Telecomsystem
• Wirelessbasestation
• Whitegoods
• Gameconsole
• OfceAutomation
equipment
• Batterychargingcircuit
protection
• Industrialequipment
• Medicalequipment
• Automotive
Revised: January 10, 2012
Introduction to Circuit Protection
Introduction to Circuit Protection
Transientology
58
© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Surface Mount Fuses
451/453 Series
NANO
2®
> Very Fast-Acting > 451/453 Series
Please refer to www.littelfuse.com/series/451.html
or /453.html for current information.
Electrical Specifications by Item
Ampere
Rating
(A)
Amp
Code
Max
Voltage
Rating
(V)
Interrupting
Rating
Nominal Cold
Resistance
(Ohms)
Nominal
Melting
I
2
t (A
2
sec)
Agency Approvals
PS
E
0.062 .062 125
50amperes@125VAC/VDC
300amperes@32VDC
PSE: 100 amperes
@100VAC
5.5000
0.00019 x x
0.080 .080 125 4.0500
0.00033 x x
0.100 .100 125 3.1000 0.00138 x x
0.125 .125 125 1.7000 0.00286 x x
0.160 .160 125 1.2157 0.0048 x x
0.200 .200 125 0.8372 0.0089 x x
0.250 .250 125 0.5765
0.0158 x x
0.315 .315 125 0.3918
0.0311 x x
0.375 .375 125 0.6100 0.0425 x x
0.400 .400 125 0.5600 0.0484 x x
0.500 .500 125 0.4200 0.0795 x x
0.630 .630 125 0.3050
0.143 x x
0.750 .750 125 0.2450 0.185 x x
0.800 .800 125 0.2120 0.271 x x
1.00 001. 125 0.1530 0.459 x x x
1.25 1.25 125 0.0780 0.664 x x x
1.50 01.5 125 0.0630 0.853 x x x
1.60 01.6 125 0.0580
1.060 x x x
2.00 002. 125 0.0367 0.530 x x x
2.50 02.5 125 0.0286 1.029 x x x
3.00 003. 125 0.0227 1.650 x x x
3.15 3.15 125 0.0215 1.920 x x x
3.50 03.5 125 0.0200 2.469 x x x
4.00 004. 125 0.0160 3.152 x x x
5.00 005. 125 0.0125 5.566 x x x
6.30 06.3 125 0.0096 9.170 x x x
7.00 007. 125 0.0090 10.32 x x x
8.00 008. 125 0.0077 20.23 x x x
10.0 010. 125
35amperes@125VAC/
50amperes@125VDC
300amperes@32VDC
PSE: 100 amperes
@100VAC
0.0056 26.46 x x x
12.0 012. 65
50amperes@65VAC/VDC
300amperes@24VDC
0.0049 47.97 x x
15.0 015. 65 0.0037 97.82 x x
Notes:
- l
2
t calculated at 8ms.
- Resistance is measured at 10% of rated current, 25ºC
59
© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Surface Mount Fuses
451/453 Series
NANO
2®
> Very Fast-Acting > 451/453 Series
451/453 Series
Please refer to www.littelfuse.com/series/451.html
or /453.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 (Liquidus Temp
(T
L
) to peak
5°C/second max.
T
S(max)
to T
L
- Ramp-up Rate
5°C/second max.
Reflow
- Temperature (T
L
) (Liquidus)
217°C
- Temperature (t
L
)
60 – 90 seconds
Peak Temperature (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 peak Temperature (T
P
)
8 minutes max.
Do not exceed
260°C
Soldering Parameters
Temperature Rerating Curve
1000.000
100
10
1
0.1
0.01
0.001
.062A
.125A
.250A
.375A
.500A
.750A
1A
1.5A
2A
2.5A
3A
3.5A
4A
5A
7A
10A
12 A
15 A
0.05 0.1 110100 1000
TIME IN SECONDS
CURRENT IN AMPERES
8A
.160A
.200A
.315A
Note:
1.Deratingdepictedinthiscurveisinadditiontothestandardderatingof25%for
continuous operation.
Wave Soldering Parameters
260°CPeak
Temperature,
10 seconds max.
Time
Temperature
T
P
T
L
T
S(max)
T
S(min)
25
t
P
t
L
t
S
time to peak temperature
(t 25ºC to peak)
Ramp-down
Ramp-up
Preheat
Critical Zone
T
L
to T
P
