Littelfuse 04331.25NR
Cross Number:
Item Description:
FUSE BOARD MOUNT 1.25A 63VAC/VDC
- Category: FUSE
- Is Military Spec.: No
- Availability: In Stock
- Qty Available: 40000
| Qty | Price |
|---|---|
| 1 - 820 | $0.30360 |
| 821 - 2,110 | $0.23690 |
| 2,111 - 4,830 | $0.20700 |
| 4,831 - 7,760 | $0.19320 |
| 7,761 + | $0.17940 |
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.
7
Revision: February 13, 2008
Surface Mount Fuses
©2008 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com for the most current information
Thin Film > 1206 Size > Very Fast Acting > 433 Series
433 Series
433 Series Fuse
Description
The 433 series fast-acting surface mount fuse series
is a small (1206 size) thin-film device designed for
secondary protection of circuits used in space constrained
applications such as hand-held portable electronic devices.
For RoHS compliant and lead-free design, please refer to
the Littelfuse 466 series thin film fuse. For new designs of
7 amp please refer to Littelfuse 429 series thin film fuse.
Agency Approvals
®
®
Agency Agency File Number Ampere Range
®
E10480 125mA - 5A
®
LR29862 125mA - 5A
Features
Electrical Characteristics for Series
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fuse is an extremely
small, low profile design
(1206 chip size) utilizing
thin-film technology to
achieve precise control of
electrical characteristics.
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produces a flat surface for
improved performance in
pick-and-place operations
and an alternate solution
for height critical
application.
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electrical specification are
identical to the popular
429 Series specifications.
% of Ampere
Rating
Opening Time at 25
O
C
100% 4 hours, Minimum
200% 5 sec., Maximum
300% 0.2 sec., Maximum
Applications
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
®
®
0.125 .125 125
50A @125 V AC/DC
3.45000 0.00040 x x
0.200 .200 125 0.93800 0.00055 x x
0.250 .250 125 0.62500 0.00100 x x
0.375 .375 125 0.37500 0.00280 x x
0.50 .500 63
50A @63 V AC/DC
0.24050 0.00600 x x
0.60 .600 63 0.21000 0.01310 x x
0.75 .750 63 0.13700 0.01700 x x
0.80 .800 63 0.12250 0.03050 x x
1.00 001. 63 0.09950 0.03500 x x
1.25 1.25 63 0.07475 0.06500 x x
1.50 01.5 63 0.06250 0.12500 x x
1.75 1.75 63 0.05000 0.15000 x x
2.00 02.0 63 0.03975 0.23000 x x
2.50 02.5 32
50A @32 V AC/DC
0.03065 0.50000 x x
3.00 03.0 32 0.02625 0.70000 x x
4.00 04.0 24
50A @24 V AC/DC
0.01400 1.0240 x x
5.00 05.0 24 0.01100 1.6000 x x
Electrical Specifications by Item
1. Measured at 10% of rated current, 25ºC.
2. Measured at rated voltage.
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Secondary protection for space constrained applications
such as:
8
Revision: February 13, 2008
Surface Mount Fuses
©2008 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com for the most current information
Thin Film > 1206 Size > Very Fast Acting > 433 Series
433 Series
Average Time Current Curves
TIME IN SECONDS
CURRENT IN AMPERES
0.01
0.1
0.1
1
1
10
100
10 10
0
0.001
3A
2.5A
2A
1.75A
1.5A
1.25A
1A
.8A
.75A
.6A
.5A
.375A
.25A
.200A
.125A
4A
5A
Temperature Rerating Curve
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 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 – 150 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 - Wave Soldering
9
Revision: February 13, 2008
Surface Mount Fuses
©2008 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com for the most current information
Thin Film > 1206 Size > Very Fast Acting > 433 Series
433 Series
Dimensions
2.03
(.080")
2.03
(.080")
WAVE SOLDER REFLOW SOLDER
3.81
(.150")
1.27
(.050")
.58
(.023")
.56
(.022")
.66
(.026")
1.14
(.045")
MARKING CODE VARIES
WITH AMPERAGE RATING
(SEE CHART)
1.52
(.060")
3.18
(.125")
3.18
(.125")
4.83
(.190")
1.65
(.065")
1.52
(.060")
Sn/Pb
Sn/Pb
Sn/Pb
Cu
Coating
Packaging
Part Numbering System
0433 .125 NR
AMP CODE
SERIES
QUANTITY CODE
Materials
Body: Epoxy Substrate
Terminations: 95% Tin / 5% Lead over Nickel
over Copper
Element Cover Coat: Conformal Coating
Operating
Temperature
– 55
O
C to 90
O
C. Consult temperature rerating
curve chart.
Thermal Shock Withstands 5 cycles of – 55
O
C to 125
O
C
Humidity
MIL-STD-202F Method 103B
Condition D
Vibration Per MIL-STD-202F, Method 201A
Insulation Resistance
(After Opening)
Greater than 10,000 ohms.
Resistance to
Soldering Heat
Withstands 60 seconds above 200
O
C
and up to 260
O
C, maximum
Product Characteristics
Part Marking System
Packaging Option Packaging Specification Quantity
Quantity &
Packaging Code
Tape & Reel – 8mm tape EIA RS-481-1 (IEC 286, part 3) 5000 NR
Amp
Code
Marking
Code
.125 B
.200 C
.250 D
.375 E
.500 F
.600 .6
.750 G
.800 .8
001. H
1.25 J
01.5 K
1.75 L
002. N
02.5 O
003. P
03.5 R
004. S
005. T
