SS345A
1 / 4
Yangzhou Yangjie Electronic Technology Co., Ltd.
S-S453
Rev. 2.3, 30-May-15
www.21yangjie.com
Surface Mount Schottky Rectifier
Features
● Low profile package
● Ideal for automated placement
● Guardring for overvoltage protection
● Low power losses, high efficiency
● High forward surge capability
● Meets MSL level 1, per J-STD-020, LF maximum peak
of 260 °C
Typical Applications
For use in low voltage high frequency inverters,
freewheeling, DC/DC converters, and polarity protection
applications.
Mechanical Data
●
P
ackage: DO-214AC
Molding compound meets UL 94 V-0 flammability
rating, RoHS-compliant, halogen-free
● Terminals: Tin plated leads, solderable per
J-STD-002 and JESD22-B102
●
Polarity:
Cathode line denotes the cathode end
■
Maximum Ratings
(T
a
=25℃ Unless otherwise specified
）
PARAMETER
SYMBOL
UNIT
SS345A
Device marking code
SS345A
Repetitive peak reverse voltage
V
RRM
V
45
Average rectified output current
@60Hz sine wave, resistance load, Ta (FIG.1)
I
O
A
3.0
Surge(non-repetitive)forward current
@ 60Hz half-sine wave,1 cycle, Ta=25℃
I
FSM
A
70
Storage temperature
T
stg
℃
-55 ~+150
Junction temperature
T
j
℃
-55~+125
■Electrical Characteristics
（T
a
=25℃ Unless otherwise specified）
PARAMETER
SYMBOL
UNIT
TEST
CONDITIONS
SS345A
Maximum instantaneous
forward voltage drop per diode
V
F
V
I
FM
=3.0A
0.55
Maximum DC reverse current
at rated DC blocking voltage
per diode@ VRM=VRRM
I
RRM
mA
T
a
=25℃
0.10
T
a
=100℃
5.0
COMPLIANT
RoHS
SS345A
2 / 4
Yangzhou Yangjie Electronic Technology Co., Ltd.
S-S453
Rev. 2.3, 30-May-15
www.21yangjie.com
■
Thermal Characteristics （T
a
=25℃ Unless otherwise specified）
PARAMETER
SYMBOL
UNIT
SS345A
Thermal resistance
R
θJ-A
℃/W
55
1)
R
θJ-L
17
1)
Note
(1)
Thermal resistance from junction to ambient and from junction to lead mounted on P.C.B. with 0.2" x 0.2" (5.0 mm x 5.0 mm) copper
pad areas
■
Characteristics (Typical)
Instantaneous Forward Current(A)
FIG.3: TYPICAL FORWARD CHARACTERISTICS
0.01
0.4
TJ=25℃
Pulse width=300us
1% Duty Cycle
0.1
1.0
10
100
0.6 0.8 1.0 1.2 1.4
SS345A
0.20
0 40 80 120 160
4.0
3.0
1.0
FIG1：Io-TL Curve
Lead Temperature (℃)
Average Rectifield Output Current (A)
2.0
Peak Forward Surge Current(A)
Number of Cycles
FIG2:Surge Forward Current Capability
8.3ms Single Half Sine Wave
JEDEC Method
1 2 10 20 100
50
90
80
70
60
40
FIG.4：TYPICAL REVERSE CHARACTERISTICS
Percent of Rated Peak Reverse Voltage(%)
Instantaneous Reverse Current(mA)
0
20
40 60
80 100
0.001
Tj=25℃
100
10
1.0
0.1
0.01
SS345A
Tj=100℃