
32
SURFACEMOUNTFUSES
SURFACE MOUNT
0603
Very Fast-Acting Thin-Film Type 431 Series
Super-small size saves valuable board space while provid-
ing high power density. Ideal for circuit protection of disk
drives, PCMCIA cards and cellular phones.
ELECTRICAL CHARACTERISTICS:
% of Ampere
Rating
100%
200%
300%
Opening
Time at 25
°
C
4 hours,
Min
imum
5 seconds,
Max
imum
0.2 seconds,
Max
imum
AGENCY APPROVALS:
Recognized under the
Components Program of Underwriters Laboratories and
Certified by CSA.
AGENCY FILE NUMBERS:
UL E10480, CSA LR 29862.
INTERRUPTING RATINGS:
.25–1A
50 amperes at 32 VAC/VDC
1–5A
35 amperes at 32 VAC/VDC
ENVIRONMENTAL SPECIFICATIONS:
Operating Temperature:
–55°C to 125°C.
Vibration:
Withstands 10-55 HZ per MIL-STD-202F,
Method 201A and 10-2000 HZ at 20 G’s per
MIL-STD-202F, Method 204D, Condition D.
Insulation Resistance (After Opening):
Greater than
500,000 ohms.
Resistance To Soldering Heat:
Withstands 60 seconds
above 200°C up to 260°C, maximum.
Thermal Shock:
Withstands 5 cycles of –50°C to 125°C.
PHYSICAL SPECIFICATIONS:
Materials:
Body: Epoxy Substrate
Terminations: Copper/Nickel/Tin-Lead (95/5)
Cover Coat: Conformal Coating
Soldering Parameters:
Wave Solder — 260°C, 10 seconds maximum
Reflow Solder— 260°C, 30 seconds maximum
PACKAGING SPECIFICATIONS:
8mm Tape and Reel
per EIA-RS481 (IEC 286, part 3); 5,000 per reel, add
packaging suffix, NR.
PATENTED
ORDERING INFORMATION:
Nominal
Catalog
Ampere
Voltage
Resistance
Number
Rating
Rating
Cold Ohm
1
431
.250
1/4
32
431
.375
3/8
32
431
.500
1/2
32
431
.750
3/4
32
431
001
1
32
431
01.5
1
1
/
2
32
431
002
2
32
431
02.5
2
1
/
2
32
431
003
3
32
431
03.5
3
1
/
2
32
431
004
4
32
431
005
5
32
Nominal
Voltage Drop
(V)
2
0.130
0.084
0.120
0.110
0.100
0.082
0.077
0.089
0.080
0.090
0.100
0.107
Melting I
2
t
(A
2
Sec.)
0.0030
0.0053
0.0087
0.0171
0.0210
0.0696
0.104
0.175
0.198
0.265
0.420
0.600
0.375
0.265
0.193
0.114
0.072
0.048
0.036
0.028
0.023
0.019
0.017
0.013
1
Measured at 10% of rated current, 25°C.
2
Measured at 100% of rated current, 25°C.
10
CURRENT IN AMPERES
T
100
0.1
1
0.05
0.001
0.01
0.1
1
1
1
.
.
.
.
2
2
3
3
4
5
0.063"
± .005
0.014"
± .005
0.015"
± .001
0.031"
± .004
0.018"
± .003
R 0.008"
0.017"REF.
0.041"
± .010
.000
REFLOW SOLDER
WAVE SOLDER
0.043"
0.040"
0.040"
0.030"
0.043"
0.043"
0.126"
0.100"
Reference Dimensions:
Average Time Current Curves