Features SMA
● Low power loss, high efficiency
● For surface mounted applications
RoHS
● Low forward voltage drop
COMPLIANT
● High surge capacity
● Meet UL flammability classification 94V-0
● AEC-Q101 qualified
Mechanical Data
● Case: JEDEC SMA molded plastic
● Polarity: Color band denotes cathode
● Mounting position: Any
Note: Products with logo or
are made by HY Electronic (Cayman) Limited.
Applications
● For use in low voltage, high frequency inverters,
polarity protection applications
Maximum Ratings and Electrical Characteristics
Characteristics Symbol Unit
Maximum Repetitive Peak Reverse Voltage VRRM V
Maximum RMS Voltage VRMS V
Maximum DC Blocking Voltage VDC V
Maximum Average Forward Rectified Current @TL=100 ℃
I(AV) A
Peak Forward Surge Current, 8.3mS Single Half Sine-Wave,
Superimposed on Rated Load (JEDEC Method)
I
2
t Rating for Fusing (t<8.3mS) I
2
t A
2
s
Peak Forward Voltage at 3.0A DC (Note1) VF V
Maximum DC Reverse Current @TJ=25℃
at Rated DC Blocking Voltage @TJ=100℃
Typical Junction Capacitance (Note 2) CJ pF
Typical Thermal Resistance Junction to Lead RθJL
℃/W
Typical Thermal Resistance Junction to Ambient RθJA
℃/W
Junction Temperature Range TJ
℃
Storage Temperature Range TSTG
℃
Notes: 1. 300uS pulse width, 2%duty cycle.
2. Measured at 1.0 MHz and applied reverse voltage of 4.0V DC.
3. The typical data above is for reference only .
SS345A-13-00-A001
Rev. 11, 18-May-2020
-55 to+150
-55 to+150
250
10
50
0.55
IR
1.0
mA
20
www.hygroup.com.tw SS345A
Surface Mount Schottky Barrier Recitifiers
Reverse Voltage - 45Volts
Forward Current - 3.0 Amperes
Pb
26.7
Rating at 25℃ ambient temperature unless otherwise specified.
Single phase, half wave ,60Hz, resistive or inductive load.
For capacitive load, derate current by 20%
A
Package Outline Dimensions in Inches (Millimeters)
SS345A
45
31.5
45
3.0
IFSM 80
Rating and Characteristic Curves
SS345A
The curve above is for reference only.
SS345A-13-00-A001
Rev. 11, 18-May-2020
0
0.5
1
1.5
2
2.5
3
3.5
0 50 100 150
Fig. 1 - Forward Current Derating Curve
Average Forward Current (A)
Fig. 2 - Maximum Non-Repetitive Surge Current
Number of Cycles at 60Hz
Peak Forward Surge Current (A)
0
10
20
30
40
50
60
70
80
90
1 10 100
8.3mS Single Half-Sine-Wave
(JEDEC METOD
Lead Temperature (℃)
0.1
1
10
0 0.2 0.4 0.6 0.8 1
TJ=25°C
Pulse Width 300uS
2%Duty Cycle
Fig. 4 - Typical Forward Characteristics
Instantaneous Forward Current (A)
Instantaneous Forward Voltage (V)
TJ=75°C
TJ=100°C
TJ=125°C
Instantaneous Reverse Current (mA)
Fig. 3 - Typical Reverse Characteristics
0.001
0.01
0.1
1
10
100
20 40 60 80 100
TJ=25°C
TJ=75°C
TJ=100°C
TJ=125°C
Percent of Rated Peak Reverse Voltage (%)