3.0
AMPS. Surface Mount Schottky Barrier Rectifiers
SS32A - SS320A
SMA/DO-214AC
Features
For surface mounted application
Easy pick and place
Metal to silicon rectifier, majority carrier conduction
Low power loss, high efficiency
High current capability, low VF
High surge current capability
Plastic material used carriers Underwriters
Laboratory Classification 94V-0
Epitaxial construction
High temperature soldering:
o
260 C / 10 seconds at terminals
Mechanical Data
Case: JEDEC
SMA/DO-214AC
Molded plastic
Terminals: Pure tin plated, lead free
Polarity: Indicated by cathode band
Weight: 0.064 gram
Dimensions in inches and (millimeters)
Maximum Ratings and Electrical Characteristics
Rating at 25
o
C ambient temperature unless otherwise specified.
Single phase, half wave, 60 Hz, resistive or inductive load.
For capacitive load, derate current by 20%
Symbol SS SS SS SS
Type Number
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Maximum Average Forward Rectified
Current at T
L
(See Fig. 1)
Peak Forward Surge Current, 8.3 ms Single
Half Sine-wave Superimposed on Rated
Load (JEDEC method )
Maximum Instantaneous Forward Voltage
(Note 1)
IF= 3.0A @ 25
o
C
@ 100
o
C
o
Maximum DC Reverse Current @ T
A
=25
C
at
o
Rated DC Blocking Voltage
@ T
A
=125
C
Typical Thermal Resistance ( Note 2 )
V
RRM
V
RMS
V
DC
I
(AV)
I
FSM
V
F
I
R
SS SS SS SS
Units
32A 33A 34A 35A 36A 39A 310A 320A
V
20
30
40
50
60
90 100
200
V
14
21
28
35
42
63
70 140
V
20
30
40
50
60
90 100
200
3.0
100
70
A
A
V
mA
mA
o
0.5
0.4
0.5
10
0.75
0.65
5
28
88
0.85
0.95
0.70
0.80
0.1
0.5
R
ΘJL
R
θJA
Operating Temperature Range
T
J
-55 to +125
Storage Temperature Range
T
STG
Notes:
1. Pulse Test with PW=300 usec, 1% Duty Cycle
C/W
o
o
-55 to +150
-55 to +150
C
C
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3.0
AMPS. Surface Mount Schottky Barrier Rectifiers
RATINGS AND CHARACTERISTIC CURVES (SS32A THRU SS320A)
FIG.1- MAXIMUM FORWARD CURRENT DERATING
CURVE
3
AVERAGE FORWARD CURRENT. (A)
RESISTIVE OR
INDUCTIVE LOAD
SS32A - SS320A
100
PEAK FORWARD SURGE CURRENT. (A)
FIG.2- MAXIMUM NON-REPETITIVE PEAK FORWARD
SURGE CURRENT
AT RATED TL
8.3ms Single Half Sine Wave
JEDEC Method
80
SS35A-SS320A
2
SS32A
-SS34A
60
1
40
20
PCB MOUNTED ON 0.6X0.6"
(16X16mm) COPPER PAD AREAS
0
50
60
70
80
90
100
110
120
o
130
140
150
160
01
LEAD TEMPERATURE. ( C)
10
NUMBER OF CYCLES AT 60Hz
100
FIG.3- TYPICAL FORWARD CHARACTERISTICS
40
TJ=25
0
C
FIG.4- TYPICAL REVERSE CHARACTERISTICS
20
10
0
TJ=125C
SS35A-SS36A
INSTANTANEOUS FORWARD CURRENT. (A)
INSTANTANEOUS REVERSE CURRENT. (mA)
10
SS32A-SS34A
1
1
0
TJ=75C
0.1
SS39A-SS320A
0.1
0.01
SS320A
PULSE WIDTH=300 S
1% DUTY CYCLE
TJ=25
0
C
SS32A-SS34A
SS35A-SS320A
0.01
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
0.001
0
20
40
60
80
100
120
140
FORWARD VOLT
AGE. (V)
PERCENT OF RATED PEAK REVERSE VOLT
AGE. (%)
FIG.5- TYPICAL JUNCTION CAPACIT
ANCE
1000
TJ=25C
f=1.0MHz
Vsig=50mVp-p
0
FIG.6- TYPICAL TRANSIENT THERMAL
CHARACTERISTICS
100
TRANSIENT THERMAL IMPEDANCE. (
O
C/W)
JUNCTION CAPACITANCE.(pF)
10
100
1
SS32A-SS34A
SS35A-SS36A
SS39A-SS320A
10
0.1
1
10
100
0.1
0.01
0.1
1
10
T, PULSE DURATION. (sec)
100
REVERSE VOLTAGE. (V)
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