Production specification
Schottky Barrier Rectifiers
Features
Metal silicon junction, majority carrier conduction
High surge capability
High temperature soldering guaranteed:
260°C/10 seconds
High current capability, low forward voltage drop
Guarding for over voltage protection
RoHS Compliant
Case: SMA molded plastic
Molding compound, UL flammability classification rating 94V-0
SS32A--SS345A
Mechanical Data
Terminals: Matte tin plated leads, solderable perJ-STD-002 and JESD22-B102
Polarity: Color band denotes cathode end
Maximum Ratings
(@T
A
= 25°C unless otherwise specified)
Characteristic
Peak repetitive reverse voltage
RMS reverse voltage
DC blocking voltage
Maximum average forward output current
Peak forward surge current,
8.3ms single half-sine-wave
Symbol
V
RRM
V
RMS
V
DC
I
F(AV)
I
FSM
SS32A
20
14
20
SS33A
30
21
30
3.0
80
SS34A
40
28
40
SS345A
45
31.5
45
Units
V
V
V
A
A
Thermal Characteristics
Parameter
Typical thermal resistance
(Note 1)
Operating junction temperature range
Storage temperature range
Symbol
R
ΘJA
R
ΘJC
R
ΘJL
T
J
T
STG
SS32A
SS33A
70
25
30
- 55 ---- + 125
- 55 ---- + 150
°C
°C
°C /W
SS34A
SS345A
Units
Note:
1. Device mounted on PCB with 10 mm x 20 mm x 0.1mm copper pad areas
SMA407AA
Rev.B
www.gmesemi.com
Production specification
Schottky Barrier Rectifiers
SS32A--SS345A
Electrical Characteristics
(@T
A
= 25°C unless otherwise specified)
Parameter
Maximum instantaneous
forward voltage(Note 1)
Maximum Reverse current
(Note 2)
@T
J
=25°C
I
R
Rated V
R
,
@T
J
=100°C
--
20
mA
--
500
μA
Symbol
V
F
Test
I
F
=3.0A
conditions
@T
A
=25°C
Typ.
--
Max.
0.5
Units
V
Note:
1.Pulse test: 300us pulse width, 1 % duty cycle
2.Pulse test: Pulse width 40ms
SMA407AA
Rev.B
www.gmesemi.com
Production specification
Schottky Barrier Rectifiers
Fig.1-Forward Current Derating Curve
I
FSM
,Peak Forward Surge Current (A)
3
2.5
2
1.5
1
0.5
0
0
25
50
75
100
Case Temperature (°C)
125
150
SS32A--SS345A
Ratings and Characteristic Curves
(T
A
=25°C unless otherwise noted)
Fig.2- Surge Current Derating Curve
80
Average Current (A)
60
40
20
0
1
10
Number of Cycles at 60H
Z
100
Fig.3- Typical Forward Voltage Characteristic
10
Forward Current I
F
(A)
Reverse Current ,I
R
(μ A)
Fig.4- Typical Reverse Characteristic
10000
Tj=125℃
Tj=25℃
1
Tj=125℃
1000
=
100
℃
Tj
Tj=75℃
=
100
℃
Tj
100
Tj=75℃
10
Tj=25℃
0.1
0.1
0.2
0.3
0.4
0.5
0.6
Forward Voltage ,V
F
(V)
1
10
20
30 40 50 60 70 80
Reverse Voltage ,V
R
(%)
90 100
SMA407AA
Rev.B
www.gmesemi.com
Embedded System
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