CO
LO & MP
LI
GE
AN
N
T
FR
EE
SinglFuse™ SF-1206S Series Features
n Slow blow thin film chip fuse for overcurrent protection
*R
oH
S
n 3216 (EIA 1206) miniature footprint
**
HA
n Surface mount packaging for automated assembly
n UL 248-14 compliant
PL
IA
N
T
n RoHS compliant* and halogen free**
*R
oH
S
CO
M
SF-1206S Series - Slow Blow Surface Mount Fuses
Clearing Time Characteristics for Series
100 %
250 %
Click these links for more information:
Clearing Time at 25 °C
Min.
Max.
4 hours
—
—
5 seconds
Electrical Characteristics
Ro VE LEA
HS RS D
CO ION FRE
M SA E
PL R
IA E
NT
*
LE
AD
FR
EE
% of Current Rating
Additional Information
PRODUCT TECHNICAL INVENTORY SAMPLES
LIBRARY
Model
Rated Current
(A)
Resistance
(Ω) Typ.***
SF-1206S050-2
0.50
0.596
0.030
SF-1206S080-2
0.80
0.165
0.068
SF-1206S100-2
1.00
0.132
SF-1206S125-2
1.25
0.09
SF-1206S150-2
1.50
0.079
0.236
SF-1206S200-2
2.00
0.041
0.339
SF-1206S250-2
2.50
0.033
0.605
SF-1206S300-2
3.00
0.023
0.933
SF-1206S400-2
4.00
0.0155
SF-1206S500-2
5.00
0.013
2.533
SF-1206S700-2
7.00
0.007
5.684
Rated
Voltage
63 VDC
32 VDC
Interrupting
Rating
50 A @ 63 VDC
50 A @ 32 VDC
Typical
I t (A2s) ****
2
0.098
0.155
1.537
CONTACT
Certifications
cUL: E198545
3
3
3
3
3
3
3
3
3
3
3
*** Resistance value measured with ≤10 % rated current at 25 °C ambient. Tolerance ± 25 %.
**** Melting I2t calculated at 10 times rated current.
Environmental Characteristics
Operating Temperature�����������������������������������������������������������������������������������������������������������������������������������������������������������������-20 °C to +105 °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 Classification (HBM)���������������������������������������������������������������������������������������������������������������������������������������������������������������������������� Class 6
WARNING Cancer
and Reproductive Harm
www.P65Warnings.ca.gov
*RoHS Directive 2015/863, Mar 31, 2015 and Annex.
**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.
SinglFuse™ SF-1206S Series Applications
n Portable memory
n Cell phones
n LCD monitors
n Rechargeable battery packs
n Disk drives
n Battery chargers
n PDAs
n Set top boxes
n Digital cameras
n Industrial controllers
n DVDs
SF-1206S Series - Slow Blow Surface Mount Fuses
Average Pre-Arcing Time vs. Current Curves
1.50 A
1.25 A
1.00 A
0.80 A
0.50 A
Average I2t vs. t Curves
2.00 A
2.50 A
3.00 A
4.00 A
5.00 A
7.00 A
100
1000
7.00 A
5.00 A
4.00 A
100
10
3.00 A
2.50 A
PRE-ARCING TIME (SECONDS)
2.00 A
1.50 A
1.25 A
1.00 A
10
0.80 A
I2t (A2s)
1
0.50 A
0.1
1
0.01
0.1
3.1 ± 0.1
(.122 ± .004)
0.001
0.1
1
10
2.2 ± 0.2
(.087 ± .008)
0.01
0.001
100
CURRENT (A)
Product Dimensions
3.1 ± 0.1
(.122 ± .004)
3.1 ± 0.1
(.122 ± .004)
RATIO OF I2T
1
0.5 ± 0.3
(.020 ± .012)
1.55 ± 0.1
(.061 ± .004)
0.5 ± 0.2
(.020 ± .008)
0.5 ± 0.3
(.020 ± .012)
0.1
0.5 ± 0.3
(.020 ± .012)
0.5 ± 0.3
(.020 ± .012)
0.5 ± 0.3
(.020
± .012)
DIMENSIONS:
0.6 ± 0.1
100 (.024 ± .004)
1000
10
0.01
1.55 ± 0.1
(.061 ± .004)
10000
0.5 ± 0.3
(.020 ± .012)
2.2 ± 0.2
(.087 ± .008)
0.6 ± 0.1
(.024 ± .004)
1.55 ± 0.1
(.061 ± .004)
0.5 ± 0.2
(.020 ± .008)
4.7 ± 0.3
(.185 ± .012)
MM
(INCHES)
0.1
1
1.65 ± 0.15
(.065 ± .006)
TIME (SECONDS)
Recommended Pad Layout
4.7 ± 0.3
(.185 ± .012)
2.2 ± 0.2
(.087 ± .008)
1.65 ± 0.15
(.065 ± .006)
1.65 ± 0.15
(.065 ± .006)
4.7 ± 0.3
(.185 ± .012)
0.6 ± 0.1
100000 (.024 ± .004)
RATIO OF I2T REPEAT NUMBERS TO BLOW
0.5 ± 0.2
(.020 ± .008)
0.5 ± 0.2
(.020 ± .008)
0.5 ± 0.2
(.020 ± .008)
0.5 ± 0.2
(.020 ± .008)
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.
SF-1206S Series - Slow Blow Surface Mount Fuses
RATED CURRENT PERCENTAGE (%)
Thermal Derating Curve
Packaging
120
110
Reel Dimension
7-inch Tape and Reel
Specification
EIA 481-2
Quantity
5,000 pieces
Packaging Code
-2
100
Typical Part Marking
90
Represents total content. Layout may vary.
80
-20
0
20
60
40
80
100
120
AMBIENT TEMPERATURE (°C)
RATED CURRENT (A)
F = 0.50
T = 2.50
K = 0.80
3 = 3.00
L = 1.00
W = 4.00
M = 1.25
Y = 5.00
P = 1.50
Z = 7.00
S = 2.00
How to Order
SF - 1206 S 050 - 2
SinglFuse™
Product Designator
SMD Footprint
3216 (EIA 1206) size
Fuse Blow Type
S = Slow Blow
250
230 °C or higher
TEMPERATURE (°C)
Rated Current
050-700 (500 mA - 7.00 A)
Packaging Type
- 2 = Tape & Reel (5,000 pcs./reel)
Solder Reflow Recommendations
200
180 °C
150
PRE-HEATING ZONE
150 °C
90 ± 30 Seconds
100
250
Peak: 250 +0/-5 °C
Peak: 250 +0/-5 °C
30 ± 10 Seconds
SOLDERING ZONE
230 °C or higher
TEMPERATURE (°C)
50
200
180 °C
150
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
90 ± 30 Seconds
100
HEATING TIME
PRE-HEATING ZONE
30 ± 10 Seconds
SOLDERING ZONE
50
HEATING TIME
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
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.
SF-1206S Series - Slow Blow Surface Mount Fuses
Reliability Testing
No.
Test
Requirement
Test Condition
1
Carrying Capacity
No fusing
Rated current, 4 hours
2
Fusing Time
Within 5 seconds
200 % of its rated current
3
Interrupting Ability
No mechanical damages
After the fuse is interrupted, rated voltage applied
for 30 seconds again
4
Bending Test
No mechanical damages
Distance between holding points: 90 mm,
Bending: 3 mm, 1 time, 30 seconds
5
Resistance to Solder Heat
±20 %
260 °C ±5 °C,10 seconds ±1 second
6
Solderability
95 % coverage minimum
235 °C ±5 °C, 2 ±0.5 second
245 °C ±5 °C, 2 ±0.5 second (lead free)
7
Temperature Rise
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