n Single blow fuse for overcurrent protection
n 3225 (EIA 1210) footprint
n Slow blow fuse
n UL 248-14 listed
n RoHS compliant* and halogen free**
n Wire core SMD design
n Surface mount packaging for automated assembly
Electrical Characteristics
SF-1210SxxxW Series - Slow Blow Wire Core Surface Mount Fuses
Model Rated Current
(Amps) Fusing Time Resistance
(Ω) Typ.***
Rated
Voltage
Interrupting
Rating
Typical
I2t (A2s) ****
SF-1210S100W-2 1.00
Open within 5
sec. at 250 %
rated current
0.079
AC 125 V AC 125 V 100 A
DC 65 V 100 A
0.20
SF-1210S150W-2 1.50 0.050 0.50
SF-1210S200W-2 2.00 0.037 0.90
SF-1210S250W-2 2.50 0.033 1.20
SF-1210S300W-2 3.00 0.028 1.50
Reliability Testing
SinglFuse™ SF-1210SxxxW Series Features
*** Resistancevaluemeasuredwith≤10%ratedcurrentat25°Cambient.Tolerance±25%.
**** Melting I2tcalculatedat0.001secondpre-arcingtime.
No. Test Requirement Test Condition Test Reference
1Reowandbend DCRchange≤20%(≤10%for≤1A)
Nomechanicaldamage
3reowsat245°Cfollowedbya
2mmbend
RefertoSTP
document
2Solderability Minimum90%coverage Onedipat245°Cfor5seconds MIL-STD-202
Method208
3Solderingheat
resistance
DCRchange≤20%(≤10%for≤1A)
Newsoldercoverage≤75% Onedipat260°Cfor10seconds MIL-STD-202
Method210
4 Moistureresistance DCRchange≤±15%
Noexcessivecorrosion 10cycles MIL-STD-202
Method106
5Saltspray DCRchange≤±10%
Noexcessivecorrosion 48hourexposure,5%saltsolution MIL-STD-202
Method101
6Mechanicalvibration DCRchange≤±10%
Nomechanicaldamage
0.4inchD.A.or30Gbetween
5-3000 Hz
MIL-STD-202
Method204
7Mechanicalshock DCRchange≤±10%
Nomechanicaldamage 1500G,0.5ms,half-sineshocks MIL-STD-202
Method213
8ThermalShock DCRchange≤±10%
Nomechanicaldamage 100cyclesbetween-65°Cand+125°C MIL-STD-202
Method107
9Life
Noelectrical“opens”duringtesting
Voltagedropchangeshallbeless
than±20%ofinitialvalue
80%ratedcurrent(75%for<1Afuses)
for2000hoursatambienttemperature
+25°C
RefertoSTP
document
ULFileNumber ................................................................ E198545
Agency Recognition
Asia-Pacic: Tel: +886-2 2562-4117 • Email: asiacus@bourns.com
EMEA: Tel: +36 88 520 390 • Email: eurocus@bourns.com
The Americas: Tel: +1-951 781-5500 • Email: americus@bourns.com
www.bourns.com
* RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU
June 8, 2011.
** Bourns considers a product to be “halogen free” if (a) the Bromine (Br) content is 900 ppm or
less; (b) the Chlorine (Cl) content is 900 ppm or less; and (c) the total Bromine (Br) and
Chlorine (Cl) content is 1500 ppm or less.
“SinglFuse” is a trademark of Bourns, Inc.
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth
on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
WARNING Cancer and Reproductive Harm
www.P65Warnings.ca.gov
n White goods
n Lighting and drivers
n DC/DC converters
n Low voltage power and chargers
n Industrial equipment
SF-1210SxxxW Series - Slow Blow Wire Core Surface Mount Fuses
SinglFuse™ SF-1210SxxxW Series Applications
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
How to Order
SF - 1210 S 150 W - 2
SinglFuse™
ProductDesignator
SMDFootprint
1210=3225(EIA1210)size
FuseBlowType
S=SlowBlow
Rated Current
100~300(1.00A~3.00A)
StructureType
W=WireCore
PackagingType
-2=Tape&Reel
Typical Part Marking
Representstotalcontent.Layoutmay
vary.
RATED CURRENT (A)
E = 1.00
G = 1.50
I = 2.00
J = 2.50
K = 3.00
G
Construction
FR4 PCB
TERMINAL
Cu/Ni/Sn
OperatingTemperature ................................................................................................................................................................-55°Cto+125°C
StorageConditions
Temperature .............................................................................................................................................................................. +5°Cto+35°C
Humidity.........................................................................................................................................................................................40%to75%
ShelfLife..........................................................................................................................................................2yearsfrommanufacturingdate
MoistureSensitivityLevel ...................................................................................................................................................................................... 1
ESDClassication(HBM)............................................................................................................................................................................ Class 6
Environmental Characteristics
Product Dimensions
FUSE ELEMENT
(Cu or Cu alloy)
Packaging Quantity
2,500piecesper7-inchreel
Recommended Pad Layout
3.20 ± 0.40
(.126 ± .016)
2.70
(.110)
4.40
(.170)
1.70
(.070)
0.85 ± 0.30
(.033 ± .012)
0.85 ± 0.30
(.033 ± .012)
0.85 ± 0.30
(.033 ± .012)
0.85 ± 0.30
(.033 ± .012)
2.50 ± 0.20
(.098 ± .008) 1.60 ± 0.20
(.063 ± .008)
3.20 ± 0.40
(.126 ± .016)
2.70
(.110)
4.40
(.170)
1.70
(.070)
0.85 ± 0.30
(.033 ± .012)
0.85 ± 0.30
(.033 ± .012)
0.85 ± 0.30
(.033 ± .012)
0.85 ± 0.30
(.033 ± .012)
2.50 ± 0.20
(.098 ± .008) 1.60 ± 0.20
(.063 ± .008)
DIMENSIONS: MM
(INCHES)
SF-1210SxxxW Series - Slow Blow Wire Core Surface Mount Fuses
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
Solder Reow Recommendations
TIME
TEMPERATURE (°C)
tL
TIME 25 °C TO PEAK
tp
Ts
Tsmax
Tsmin
TP
260
150
10 sec. max.
PREHEATING
TL
25
TC -5 °C
PREHEAT AREA
MAX. RAMP UP RATE = 3 °C/s
MAX. RAMP DOWN RATE = 6 °C/s
TEMPERATURE (°C)
120 seconds TIME
Recommended Temperature Prole for Wave Soldering
Wavesolderingissuitablefor1210sizemodels.
Prole Feature Pb-Free Assembly
Preheat/Soak:
TemperatureMin.(Tsmin)
TemperatureMax.(Tsmax)
Time(ts)from(TsmintoTsmax)
150°C
200°C
60~120seconds
RampUpRate(TLtoTp) 3°C/secondmax.
LiquidousTemperature(TL)
Time(tL)maintainedaboveTL
217°C
60~150seconds
PeakPackageBody
Temperature(Tp)260°C
Time(tp)*within5°Cofthe
speciedclassicationtemperature
(Tc)
30seconds*
RampDownRate(TptoTL) 6°C/secondmax.
Time25°CtoPeakTemperature 8minutesmax.
TIME
TEMPERATURE (°C)
tL
TIME 25 °C TO PEAK
tp
ts
Tsmax
Tsmin
Tp
260
150
10 sec. max.
PREHEATING
TL
25
Tc -5 °C
PREHEAT AREA
MAX. RAMP UP RATE = 3 °C/s
MAX. RAMP DOWN RATE = 6 °C/s
TEMPERATURE (°C)
120 seconds TIME
*Toleranceforpeakproletemperature(Tp)isdenedasa
supplierminimumandausermaximum.
3312 - 2 mm SMD Trimming Potentiometer
SF-1210SxxxW Series - Slow Blow Wire Core Surface Mount Fuses
REV.B01/19
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
Average Pre-Arcing Time vs. Current Curves Average I2t vs. t Curves
2.00 A
2.50 A
3.00 A
1.00 A
1.50 A
10
1
0.1
0.01
0.001
0.0001
PRE-ARCING TIME (SECONDS)
110 100
CURRENT (A)
1000
100
10
1
0.1
I2t (A2s)
0.10.010.0010.0001 110
TIME (SECONDS)
3.00 A
2.50 A
2.00 A
1.50 A
1.00 A
2.00 A
2.50 A
3.00 A
1.00 A
1.50 A
10
1
0.1
0.01
0.001
0.0001
PRE-ARCING TIME (SECONDS)
110 100
CURRENT (A)
1000
100
10
1
0.1
I2t (A2s)
0.10.010.0010.0001
11
0
TIME (SECONDS)
3.00 A
2.50 A
2.00 A
1.50 A
1.00 A
Current Rating Thermal Derating Curve
110
105
100
95
90
85
80
75
70
65
60
55
50
-55 -35 -15 5
MAXIMUM OPERATING TEMPERATURE (°C)
DERATING (%)
25 45 65 85 105 125
3312 - 2 mm SMD Trimming Potentiometer
SF-1210SxxxW Series Tape and Reel Packaging Specications
SF-1210SxxxW Series
Tape Dimensions per EIA 481-2
W 8.00 ± 0.10
(.315 ± .004)
P0
4.0 ± 0.10
(.157 ± .004)
P1
4.0 ± 0.10
(.157 ± .004)
P2
2.0 ± 0.05
(.079 ± .002)
A0
2.69 ± 0.10
(.106 ± .004)
B0
3.50 ± 0.10
(.138 ± .004)
F 3.50 ± 0.05
(.138 ± .002)
E1
1.75 ± 0.10
(.069 ± .004)
D0
1.50 + 0.10
(.059 + .004)
K0
1.43 ± 0.10
(.056 ± .004)
T 0.23 ± 0.02
(.009 ± .001)
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
PACKAGING:Papertape,2,500pcs.perreel
DIMENSIONS: MM
(INCHES)
DIRECTION OF UNREELING
KO
AO
P1
60.20 ± 0.50
(2.370 ± .020)
DIA.
B0
W
13.20 +0.3/-0.2
(.520 +.012/-.008)
DIA.
178.00 ± 1.00
(7.008 ± .039)
DIA.
0.2
0.4
0.6
0.8
0.2
0.4
0.6
0.8
13.40 ± 0.50
(.539 ± .020)
1.40 ± 0.20
(.055 ± .008)
1.20 ± 0.20
(.047 ± .008)
2.20 ± 0.30
(.087 ± .012)
T
P2
D0P0
E
F
Legal Disclaimer Notice
This legal disclaimer applies to purchasers and users of Bourns® products manufactured by or on behalf of Bourns, Inc. and
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Unless otherwise expressly indicated in writing, Bourns® products and data sheets relating thereto are subject to change
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and complete before placing orders for Bourns® products.
The characteristics and parameters of a Bourns® product set forth in its data sheet are based on laboratory conditions, and
statements regarding the suitability of products for certain types of applications are based on Bourns’ knowledge of typical
requirements in generic applications. The characteristics and parameters of a Bourns®/1.#4"3(- 42$1 //+(" 3(.-, 85 18
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the user’s sole risk.
'$42$ -#+$5$+.%3$23(-& //+(" !+$3..41-2® custom products shall be negotiated on a case-by-case basis by Bourns
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also apply to such Bourns® custom products.
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