FAIRCHILD SB1245

SB1245
Ultra Low VF Schottky Barrier Rectifier
This device is designed for low voltage, high frequency inverters,
free-wheeling and polarity protection applications.
This is also designed as bypass diode for solar modules.
Features
•
•
•
•
•
UL Flammability Classification 94V-O
Environment Standards MIL-S-19500/228 Compliant
Low Power Loss, High Efficiency
High Surge Capacity
Pb-free, RoHS Compliant
Absolute Maximum Ratings *
Symbol
DO-201AD
COLOR BAND DENOTES CATHODE
TA = 25°C unless otherwise noted
Parameter
VRRM
Maximum Recurrent Peak Reverse Voltage
VRMS
Value
Units
45
V
Maximum RMS Voltage
31
V
VDC
Maximum DC Blocking Voltage
45
V
IF(AV)
Maximum Average Forward Current
12
A
IFSM
Peak Forward Surge Current
8.3ms Single Half-Sine-Wave
Superimposed on Rated Load (JEDEC Method)
150
A
VF
Maximum Forward Voltage at IF=12A
0.55
V
IR
Maximum DC Reverse Current at Rated VDC
0.1
10
mA
I2t
Rating for Fusing ( t<8.3ms )
3.7
A2sec
TJ
Operating Junction Temperature Range
In DC Forward Mode
-55 to +150
-55 to +200
°C
Storage Temperature Range
-55 to +175
°C
TSTG
TJ=25°C
TJ=100°C
* These ratings are limiting values above which the serviceability of any semiconductor device may by impaired.
Thermal Characteristics
Symbol
Parameter
Value
Units
RθJC
Typical Thermal Resistance, Junction to Case
10
°C/W
RθJL
Typical Thermal Resistance, Junction to Lead
2.0
°C/W
© 2009 Fairchild Semiconductor Corporation
SB1245 Rev. A1
www.fairchildsemi.com
1
SB1245 — Ultra Low VF Schottky Barrier Rectifier
September 2009
100
20
o
16
TJ=150 C
o
TJ=100 C
1
IR- Reverse Current [mA]
IF(AV)- Average Forward Current [A]
10
12
8
4
o
0.1
TJ=85 C
0.01
1E-3
o
TJ=25 C
1E-4
1E-5
o
TJ= -40 C
1E-6
1E-7
0
0
50
100
5
150
10
15
o
20
25
30
35
40
45
VR- Reverse Voltage [V]
Case Temperature [ C]
Figure 1. Forward Current Derating Curve
Figure 2. Reverse Current vs. Reverse Voltage
100
100
10
o
TJ=125 C
10
IF- Forward Current [A]
IR- Instantaneous Reverse Current [mA]
o
TJ=150 C
o
TJ=100 C
1
o
TJ=75 C
0.1
0.01
o
TA=100 C
1
o
TA=25 C
0.1
o
TA= -40 C
o
TJ=25 C
1E-3
0
20
40
60
80
100
120
140
0.01
0.0
0.2
0.4
0.6
0.8
1.0
VF- Forward Voltage [V]
Percent of Rated Reverse Voltage [%]
Figure 3. Typical Reverse Characteristics
Figure 4. Forward Voltage vs. Forward Current
CJ- Total Capacitance [pF]
10000
1000
100
10
0.1
1
10
100
VR - Reverse Voltage [V]
Figure 5. Typical Junction Capacitance
© 2009 Fairchild Semiconductor Corporation
SB1245 Rev. A1
www.fairchildsemi.com
SB1245 — Ultra Low VF Schottky Barrier Rectifier
Typical Performance Characteristics
SB1245 — Ultra Low VF Schottky Barrier Rectifier
Physical Dimensions
© 2009 Fairchild Semiconductor Corporation
SB1245 Rev. A1
www.fairchildsemi.com
3
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PRODUCT STATUS DEFINITIONS
Definition of Terms
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Product Status
Advance Information
Formative / In Design
Preliminary
First Production
No Identification Needed
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Not In Production
Definition
Datasheet contains the design specifications for product development. Specifications may change in
any manner without notice.
Datasheet contains preliminary data; supplementary data will be published at a later date. Fairchild
Semiconductor reserves the right to make changes at any time without notice to improve design.
Datasheet contains final specifications. Fairchild Semiconductor reserves the right to make changes
at any time without notice to improve the design.
Datasheet contains specifications on a product that is discontinued by Fairchild Semiconductor.
The datasheet is for reference information only.
Rev. I41
© 2008 Fairchild Semiconductor Corporation
www.fairchildsemi.com