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NT
SinglFuseTM SF-0402F Series Features
Single blow fuse for overcurrent Thin film chip fuse Surface mount packaging for automated
M
PL
IA
protection 1005 (EIA 0402) miniature footprint Fast-acting fuse UL certified RoHS compliant* and halogen free
S
CO
*R
assembly
oH
SF-0402F Series - Fast Acting Surface Mount Fuses
Electrical Characteristics
Rated Current Resistance Fusing Time (Amps) (m) 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
Reliability Testing
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
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
Represents total content. Layout may vary.
How to Order
SF - 0402 F 050 - 2
SinglFuseTM 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
SinglFuseTM SF-0402F Series Applications
Portable memory LCD monitors Disk drives PDAs Digital cameras DVDs Cell phones Rechargeable battery packs Battery chargers Set top boxes Industrial controllers
SF-0402F Series - Fast Acting Surface Mount Fuses
Solder Reflow Recommendations
250
Peak: 250 +0/-5 C 230 C or higher
TEMPERATURE (C)
200 180 C 150 150 C
PRE-HEATING ZONE 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
90 30 Seconds 100
30 10 Seconds SOLDERING ZONE
50
HEATING TIME
Product Dimensions
1.0 0.1 (.039 .004) 0.35 0.05 (.014 .002) 0.52 0.05 (.020 .002) 0.25 0.1 (.010 .004) 0.2 0.1 (.008 .004) 0.2 0.1 (.008 .004) 0.25 0.1 (.010 .004)
Recommended Pad Layout
0.381 (.015)
0.558 (.022)
DIMENSIONS:
PACKAGING: 10,000 pcs./reel
MM (INCHES)
1.55 (.061)
Thermal Derating Curve
120
Construction & Material Content
OVERCOAT
PERCENT OF RATING (%)
110 100
Sn PLATING
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
Average Time Current Curves
1.50 A 1.25 A 1.00 A 0.80 A 0.75 A 0.50 A 1.60 A 2.00 A 2.50 A 3.00 A 3.15 A 4.00 A
Minimum I2T V Clear Time Curves
100
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 0.50 A
100
10
10
MIN. I2T (A2 SEC)
1 10 100
1
CLEARING TIME (S)
1
0.1
0.1
0.01
0.01
0.001 0.1
CURRENT (A)
0.001 0.001
0.01
0.1
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
3312 - 2 Series Tape and Reel Specifications SF-0402Fmm SMD Trimming Potentiometer
SF-0402F Series per EIA 481-2
8.0 0.2 (.315 .008) 4.0 0.1 (.157 .004) 2.0 0.1 (.079 .004) 2.0 0.05 (.079 .002) 0.7 0.05 (.028 .002) 1.2 0.05 (.047 .002) 3.5 0.05 (.138 .002) 1.75 0.1 (.069 .004) 1.5 + 0.1 (.059 + .004) 0.45 0.01 (.018 .004)
Tape Dimensions W P0 P1 P2 A B F E D0 T Reel Dimensions A B Min. C W T
DIMENSIONS: MM (INCHES)
180 +0/-3.0 (7.087 +0/-.118) 60.0 (2.362) 13.0 1.0 (.512 .039) 9.0 1.0 (.354 .039) 11.4 2.0 (.449 .079)
T W
A DIA. C DIA. B DIA.
BOTTOM TAPE
DO TOP TAPE B
PO
E
F
W
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

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