Thin-Film Surface Mount
366
Surface Mount Fuses
SlimLine
TM
1206
Very Fast-Acting Fuse 433 Series
w w w . l i t t e l f u s e . c o m
For new designs of 7 amp please consult 429 series.
The SlimLine 1206 fuse is an extremely small, low profile design
(1206 chip size) utilizing thin-film technology to achieve precise control
of electrical characteristics.
The lower height profile produces a flat surface for improved perform-
ance in pick-and-place operations and an alternate solution for height
critical application.
Mounting pad and electrical specification are identical to the popular
429 Series specifications.
ELECTRICAL CHARACTERISTICS:
% of Ampere
Opening
Rating
Time at 25
C
100%
4 hours, Minimum
200%
5 seconds, Maximum
300%
0.2 seconds, Maximum
AGENCY APPROVALS:
Recognized under the Components Program
of Underwriters Laboratories and Certified by CSA.
AGENCY FILE NUMBERS:
UL E10480, CSA LR 29862.
INTERRUPTING RATINGS:
0.125 .375A
50 A @ 125 V AC/DC
0.5 2A
50 A @ 63 V AC/DC
2.5 3A
50 A @ 32 V AC/DC
4 5A
50 A @ 24 V AC/DC
ENVIRONMENTAL SPECIFICATIONS:
Operating Temperature: 55C to 90C. Consult temperature
rerating chart on page 4. For operation above 90C
contact Littelfuse.
Vibration:
Per MIL-STD-202F.
Insulation Resistance (After Opening):
Greater than 10,000 ohms.
Resistance to Soldering Heat:
Withstands 60 seconds above
200C up to 260C, maximum.
Shelf Life (Solderability):
1 year min.
Thermal Shock:
Withstands 5 cycles of 55 to 125C.
PHYSICAL SPECIFICATIONS:
Materials:
Body: Epoxy Substrate
Terminations: Copper/Nickel/Tin-Lead (95/5)
Cover Coat: Conformal Coating
Soldering Parameters(refer to page
3 for soldering profile):
Wave Solder -- 260C, 10 seconds maximum
Infrared Solder -- 260C, 30 seconds maximum
PACKAGING SPECIFICATIONS:
8mm Tape and Reel per
EIA-RS481-1 (IEC 286, part 3); 5,000 per reel, add packaging suffix, NR.
PATENTED
ORDERING INFORMATION:
2.03
(.080")
2.03
(.080")
WAVE SOLDER
REFLOW SOLDER
3.81
(.150")
1.
52
(.0
60")
.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
Reference Dimensions:
TIME IN SECONDS
CURRENT IN AMPERES
0.01
0.1
0.1
1
1
10
100
10
100
0.001
3A
2.5A
2A
1.75A
1.5A
1.25A
1A
.8A
.75A
.6A
.5A
.375A
.25A
.200A
.125A
4A 5A
Average Time Current Curves
Nominal
Catalog
Ampere
Marking
Voltage
Resistance
Melting I
2
t
Number
Rating
Code
Rating
Cold Ohms
1
(A
2
Sec.)
2
0433.125
.125
B
125
3.45
0.00040
0433.200
.200
C
125
0.938
0.00055
0433.250
.250
D
125
0.625
0.0010
0433.375
.375
E
125
0.375
0.0028
0433.500
.50
F
63
0.2405
0.0060
0433.600
.60
.6
63
0.2100
0.0131
0433.750
.75
G
63
0.1370
0.0170
0433.800
.80
.8
63
0.1225
0.0305
0433 001.
1.0
H
63
0.09950
0.0350
0433 1.25
1.25
J
63
0.07475
0.0650
0433 01.5
1.5
K
63
0.06250
0.125
0433 1.75
1.75
L
63
0.05000
0.150
0433 002.
2.0
N
63
0.03975
0.230
0433 02.5
2.5
O
32
0.03065
0.50
0433 003.
3.0
P
32
0.02625
0.70
0433 004.
4.0
S
24
0.014
1.024
0433 005.
5.0
T
24
0.011
1.600
1
Measured at 10% of rated current, 25C.
2
Measured at rated voltage.
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