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Surface Mount Schottky Barrier Rectifier
SK3B5B 
FEATURES
• Ideal for automated placement
• Low forward voltage drop
 
• Low leakage current
• Meets environmental standard MIL-S-19500D
• Moisture sensitivity:level 1, per J-STD-020
• Solder dip 275 °C, 10 s
DO214AA SMB
• Compliant to RoHS Directive 2002/95/EC and in accordance to WEEE 2002/96/EC
TYPICAL APPLICATIONS
For use in general purpose rectification of lighting, power supplies, inverters, converters and
freewheeling diodes for consumer, automotive and telecommunication.
PRIMARY CHARACTERISTICS
IF(AV)
3A
VRRM
150V
IFSM
80A
VF 0.85V
TJ max.
150 °C
MECHANICAL DATA
Case: DO-214AA, molded epoxy body Epoxy meets UL 94V-0 flammability rating
Terminals: Matte tin plated leads, solderable per J-STD-002 and JESD22B-106
Polarity: Laser Band Denotes Cathode Band
MAXIMUM RATINGS (TA = 25 °C unless otherwise noted)
PARAMETER
SYMBOL
Maximum repetitive peak reverse voltage
VRRM
Maximum RMS voltage
VRMS
Maximum DC blocking voltage
Maximum average forward rectified current
at TL (See Fig.1)
Peak forward surge current 8.3 ms single
half sine-wave superimposed on rated load
Operating junction temperature range
VDC
IF(AV)
IFSM
TJ
Storage temperature range
Tstg
SK3B5B
150
105
150
3
80
- 55 to + 150
- 55 to + 150
UNIT
V
V
V
A
A
°C
°C
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    SK3B5B 
ELECTRICAL CHARACTERISTICS (TA = 25 °C unless otherwise noted)
PARAMETER
Maximum instantaneous
forward voltage
Maximum DC reverse
current at rated DC
blocking voltage
Typical junction
capacitance
TEST CONDITIONS SYMBOL
IF=3 A
TA=25
TA=125
4.0 V, 1 MHz
VF
IR
CJ
SK3B5B
0.85
0.2
2
84
UNIT
V
mA
pF
THERMAL CHARACTERISTICS (TA = 25 °C unless otherwise noted)
PARAMETER
SYMBOL
Typical thermal resistance
RθJA (1)
RθJT (2)
SK3B5B
90
30
UNIT
°C/W
Notes: (1) Thermal resistance from junction to ambient, 0.315 0.315 8.0 8.0mm copper pads to each terminal
(2) Thermal resistance from junction to terminal, 0.315 0.315 8.0 8.0mm copper pads to each terminal
RATINGS AND CHARACTERISTICS CURVES
(T = 25 °C unless otherwise noted)
A
Figure 1. Forward Current Derating Curve 
Figure 2.Maximum Nonrepetitive Peak Forward Surge Current 
Figure 3. Typical Instantaneous Forward Characteristics 
Figure 4. Typical Reverse Characteristics
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    SK3B5B 
Figure 5. Typical Junction Capacitance 
PACKAGE OUTLINE DIMENSIONS in inches (millimeters)
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