SB1245 — Ultra Low VF Schottky Barrier Rectifier
© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com
SB1245 Rev. A2 1
December 2009
SB1245
Ultra Low VF Schottky Barrier Rectifier
Applications
• 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 * TA = 25°C unless otherwise noted
* These ratings are limiting value s ab ove which the serviceability of any semiconductor device may by impaired.
Thermal Characteristics
* Temperature read point using thermocouple is at 10mm from case edge.
Symbol Parameter Value Units
VRRM Maximum Recurrent Peak Reverse Voltage 45 V
VRMS Maximum RM S 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
VFMaximum Forward Voltage at IF=12A 0.55 V
IRMaximum DC Reverse Current at Rated VDC TJ=25°C
TJ=100°C0.1
10 mA
I2t Rating for Fusing ( t<8.3ms ) 3.7 A2sec
TJOperating Junction Temperature Range
In DC Forward Mode -55 to +150
-55 to +200 °C
TSTG Storage Temperature Range -55 to +175 °C
Symbol Parameter Value Units
RθJL Typical Thermal Resistance, Junction to Lead 10.5 °C/W
DO-201AD
COLOR BAND DENOTES CATHODE
SB1245 — Ultra Low VF Schottky Barrier Rectifier
© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com
SB1245 Rev. A2 2
Typical Performance Characteristics
Figure 1a. Average Forward Current Derating
Curve Figure 1b. DC Forward Current Derating Curve
Figure 2. Reverse Current vs. Reverse Voltage Figure 3. Typical Reverse Characteristics
Figure 4. Forward Voltage vs. Forward Current Figure 5. Typical Junction Capa citance
0 50 100 150
0
4
8
12
16
20
Temperature read point using thermocouple
is at 10mm from case edge.
Average Forward Current [A]
Lead Temperature [oC]
0 50 100 150 200
0
4
8
12
16
20
Temperat ure read point using thermocouple
is at 10mm from case edge.
DC Forward Current [A]
Lead Temperature [oC]
5 1015202530354045
1E-7
1E-6
1E-5
1E-4
1E-3
0.01
0.1
1
10
100
TJ=150oCTJ=100oC
TJ=85oC
TJ=25oC
TJ= -40oC
IR- Reverse Current [mA]
VR- Reverse Voltage [V]
0 20 40 60 80 100 120 140
1E-3
0.01
0.1
1
10
100
TJ=125oC
TJ=100oC
TJ=150oC
TJ=75oC
TJ=25oC
IR- Instantaneous Reverse Current [mA]
Percent of Rated Reverse Voltage [%]
0.0 0.2 0.4 0.6 0.8 1.0
0.01
0.1
1
10
100
TA= -40oC
TA=100oC
TA=25oC
IF- Forward Current [A]
VF- Forward Voltage [V]
0.1 1 10 100
10
100
1000
10000
CJ- Total Capacitance [pF]
VR - Reverse Voltag e [V]
SB1245 — Ultra Low VF Schottky Barrier Rectifier
© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com
SB1245 Rev. A2 3
Physical Dimensions
© 2008 Fairchild Semiconductor Corporation www.fairchildsemi.com
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The datasheet is for reference information only. Rev. I41
