BOURNS SF

NT
IA
SinglFuse™ SF-0402F Series Features
■ Thin film chip fuse
oH
S
CO
M
PL
■ Single blow fuse for overcurrent
*R
■
■
■
■
protection
1005 (EIA 0402) miniature footprint
Fast-acting fuse
UL certified
RoHS compliant* and
halogen free
■ Surface mount packaging for automated
assembly
SF-0402F Series - Fast Acting Surface Mount Fuses
Electrical Characteristics
Rated Current
Resistance
Fusing Time
(Amps)
(mΩ) Typ.*
SF-0402F050
0.50
320
SF-0402F075
0.75
110
SF-0402F080
0.80
120
SF-0402F100
1.00
90
SF-0402F125
1.25
67
Open within 1
SF-0402F150
1.50
51
min. at 200 %
SF-0402F160
1.60
46
rated current
SF-0402F200
2.00
33
SF-0402F250
2.50
25
SF-0402F300
3.00
20
SF-0402F315
3.15
19
SF-0402F400
4.00
16
*Resistance value was measured with less than 10 % of rated current.
Model
Rated
Voltage
Breaking
Capacity
DC 24 V
DC24 V 35 A
Typical
I2t (A2s)
0.00317
0.0049
0.00532
0.00724
0.01344
0.01356
0.01672
0.01983
0.03763
0.05427
0.06304
0.0896
Reliability Testing
Parameter
Requirement
Test Method
Carrying Capacity ..................................... No fusing....................................................Rated current, 4 hours
Fusing Time .............................................. Within 1 minute ..........................................200 % of its rated current
Interrupting Ability .................................... No mechanical damages ...........................After the fuse is interrupted, rated voltage applied for
30 seconds again
Bending Test............................................. No mechanical damages ...........................Distance between holding points: 90 mm,
Bending: 3 mm,1time, 30 seconds
Resistance to Solder Heat........................ ±20 % ........................................................260 °C ±5 °C,10 seconds ±1 second
Solderability .............................................. 95 % coverage minimum ...........................235 °C ±5 °C, 2 ±0.5 second
245 °C ±5 °C, 2 ±0.5 second (lead free)
Temperature Rise ..................................... <75 ° ..........................................................100 % of its rated current, measure of surface
temperature
Resistance to Dry Heat............................. ±20 % ........................................................105 °C ±5 °C,1000 hours
Resistance to Solvent............................... No evident damage on protective .............23 °C ±5 °C of isopropyl alcohol, 90 seconds coating
and marking
Residual Resistance ................................. 10k W or more ...........................................Measure DC resistance after fusing
Thermal Shock ......................................... DR < 10 % .................................................-20 °C / +25 °C /+125 °C /+25 °C, 10 cycles
Typical Part Marking
How to Order
Represents total content. Layout may
vary.
SF - 0402 F 050 - 2
SinglFuse™
Product Designator
SMD Footprint
1005 (EIA 0402) size
RATING CURRENT (A)
F = 0.50
N = 1.60
• = 0.75
S = 2.00
K = 0.80
T = 2.50
L = 1.00
3 = 3.00
M = 1.25
U = 3.15
P = 1.50
W = 4.00
Fuse Blow Type
F = Fast acting
S = Slow blow
Rated Current
050-400 (500 mA - 4.00 A)
Packaging Type
- 2 = Tape & Reel (10,000 pcs./reel)
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex.
“SinglFuse” is a trademark of Bourns, Inc.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications
Asia-Pacific:
Tel: +886-2 2562-4117
Fax: +886-2 2562-4116
Europe:
Tel: +41-41 768 5555
Fax: +41-41 768 5510
The Americas:
Tel: +1-951 781-5500
Fax: +1-951 781-5700
www.bourns.com
SinglFuse™ SF-0402F Series Applications
■ Portable memory
■ Cell phones
■ LCD monitors
■ Rechargeable battery packs
■ Disk drives
■ Battery chargers
■ PDAs
■ Set top boxes
■ Digital cameras
■ Industrial controllers
■ DVDs
SF-0402F Series - Fast Acting Surface Mount Fuses
Solder Reflow Recommendations
250
Peak: 250 +0/-5 °C
TEMPERATURE (°C)
230 °C or higher
200
PRE-HEATING ZONE
180 °C
PEAK: 250 +0/-5 °C, 5 seconds
PRE-HEATING ZONE: 150 to 180 °C, 90 ± 30 seconds
SOLDERING ZONE: 230 °C or higher, 30 ± 10 seconds
150 °C
150
90 ± 30 Seconds
100
30 ± 10 Seconds
SOLDERING ZONE
50
HEATING TIME
Product Dimensions
Recommended Pad Layout
1.0 ± 0.1
(.039 ± .004)
0.381
(.015)
0.35 ± 0.05
(.014 ± .002)
0.52 ± 0.05
(.020 ± .002)
0.558
(.022)
0.25 ± 0.1
(.010 ± .004)
0.2 ± 0.1
(.008 ± .004)
0.25 ± 0.1
(.010 ± .004)
0.2 ± 0.1
(.008 ± .004)
DIMENSIONS:
PACKAGING: 10,000 pcs./reel
1.55
(.061)
MM
(INCHES)
Thermal Derating Curve
Construction & Material Content
PERCENT OF RATING (%)
120
OVERCOAT
110
Sn PLATING
100
FUSE ELEMENT
Cu / Ni PLATING
90
CERAMIC SUBSTRATE
80
-20
0
20
40
60
80
100
120
AMBIENT TEMPERATURE (°C)
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications
SF-0402F Series - Fast Acting Surface Mount Fuses
Minimum I2T V Clear Time Curves
Average Time Current Curves
100
1.50 A
1.25 A
1.00 A
0.80 A
0.75 A
0.50 A
100
1.60 A
2.00 A
2.50 A
3.00 A
3.15 A
4.00 A
4.00 A
3.15 A
3.00 A
2.50 A
2.00 A
1.60 A
1.50 A
1.25 A
1.00 A
0.80 A
0.75 A
10
MIN. I2T (A2 SEC)
CLEARING TIME (S)
10
1
0.50 A
1
0.1
0.1
0.01
0.001
0.1
0.01
1
10
100
CURRENT (A)
0.001
0.001
0.01
0.1
CLEARING TIME (S)
REV. B 12/08
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications
1
3312 - 2 mm
SMD
Trimming
SF-0402F
Series
Tape
and ReelPotentiometer
Specifications
SF-0402F Series
per EIA 481-2
Tape Dimensions
W
8.0 ± 0.2
(.315 ± .008)
P0
4.0 ± 0.1
(.157 ± .004)
P1
2.0 ± 0.1
(.079 ± .004)
P2
2.0 ± 0.05
(.079 ± .002)
A
0.7 ± 0.05
(.028 ± .002)
B
1.2 ± 0.05
(.047 ± .002)
F
3.5 ± 0.05
(.138 ± .002)
E
1.75 ± 0.1
(.069 ± .004)
D0
1.5 + 0.1
(.059 + .004)
T
0.45 ± 0.01
(.018 ± .004)
Reel Dimensions
180 +0/-3.0
(7.087 +0/-.118)
A
60.0
(2.362)
B Min.
C
13.0 ± 1.0
(.512 ± .039)
W
9.0 ± 1.0
(.354 ± .039)
T
11.4 ± 2.0
(.449 ± .079)
T
DIMENSIONS:
MM
(INCHES)
W
BOTTOM
TAPE
A
DIA.
C DIA.
DO
PO
E
TOP
TAPE
B
B
DIA.
F
PAPER
TAPE
RESISTOR
TAPE
T
A
P1
P2
DIRECTION OF UNREELING
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications
W