CHENMKO ENTERPRISE CO.,LTD
SURFACE MOUNT
SCHOTTKY BARRIER RECTIFIER
VOLTAGE RANGE 20 - 60 Volts CURRENT 3.0 Amperes
FEATURES
* Plastic package has Underwriters Laboratory
Flammability Classification 94V-0
* For surface mounted applications
* Low profile package
* Built-in strain relief
* Metal silicon junction, majority carrier conduction
* Low power loss, high efficiency
* High current capability, low forward voltage drop
* High surge capability
* For use in low voltage high frequency inverters, free
wheeling, and polarity protection applications
* High temperature soldering guaranteed :
260
o
C/10 seconds at terminals
* Lead free devices
SSM32PT
THRU
SSM36PT
SMA
0.110(2.80)
0.094(2.40)
(1)
0.065(1.65)
0.049(1.25)
0.181(4.60)
0.165(4.20)
0.012(0.310)
0.006(0.150)
(2)
MECHANICAL DATA
Case:
JEDEC SMA molded plastic
Terminals:
Solder plated, solderable per MIL-STD-750,
Method 2026
Polarity:
Color band denotes cathode end
Weight:
0.002 ounce 0.064 gram
0.090(2.30)
0.075(1.90)
0.060(1.52)
0.030(0.76)
0.008 (0.203)(max)
0.212(5.40)
0.189(4.80)
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25 C ambient temperature unless otherwise specified.
Single phase, half wave, 60 H
Z
, resistive or inductive load.
For capacitive load, derate current by 20%.
o
Dimensions in inches and (millimeters)
SMA
SSM36PT
60
42
60
UNITS
Volts
Volts
Volts
Amps
Amps
pF
o
MAXIMUM RATINGES
( At T
A
= 25 C unless otherwise noted )
RATINGS
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Maximum Average Forward Rectified Current
Peak Forward Surge Current 8.3 ms single half sine-wave
superimposed on rated load (JEDEC method)
Typical Junction Capacitance (Note 2) (SEE FIG.4)
Typical Thermal Resistance (Note 1)
Operating Temperature Range
Storage Temperature Range
SYMBOL
V
RRM
V
RMS
V
DC
I
O
I
FSM
C
J
R
JL
o
SSM32PT
20
14
20
SSM33PT
30
21
30
SSM34PT
40
28
40
3.0
80
250
18
SSM35PT
50
35
50
C/W
o
o
T
J
T
STG
-65 to +125
-65 to +150
-65 to +150
C
C
ELECTRICAL CHARACTERISTICS
( At T
A
= 25
o
C unless otherwise noted )
CHARACTERISTICS
Maximum Instantaneous Forward Voltage at 3.0 A DC
Maximum Average Reverse Current
at Rated DC Blocking Voltage
@ T
A
= 25
o
C
I
R
@ T
A
= 100
o
C
30
mAmps
SYMBOL
V
F
SSM32PT
SSM33PT
0.55
0.5
SSM34PT
SSM35PT
SSM36PT
0.70
UNITS
Volts
mAmps
RATING CHARACTERISTIC CURVES ( SSM32PT THRU SSM36PT )
INSTANTANEOUS FORWARD CURRENT, ( A )
FIG. 1 - TYPICAL FORWARD CURRENT DERATING CURVE
AVERAGE FORWARD CURRENT, (A)
3.0
2.5
SS
3
SSM
FIG. 2 - INSTANTANEOUS FORWARD CURRENT, (A)
20
10
5P
M3
2.0
1.5
1.0
0.5
0
0
25
50
75
Single
Half Wave 60H
Z
Resistive or
Inductive Load
LEAD TEMPERATURE, ( C )
FIG. 3 - TYPICAL REVERSE CHARACTERISTICS
50
INSTANTANEOUS REVERSE CURRENT, (mA)
20
10
5
2
1
.5
.2
.10
.05
.02
0
5
10
15
20
25
INSTANTANEOUS REVERSE VOLTAGE, (V)
30
o
C
T
J
= 100
PEAK FORWARD SURGE CURRETN(A)
JUNCTION CAPACITANCE, ( pF )
2PT
~SS
M34
T~S
36P
SM
T
SSM32PT~SSM34PT
1.0
SSM35PT~SSM36PT
100
PT
125
o
150
175
0.1
T
J
=25 C
Pulse Width=300us
1% Duty Cycle
o
.2
.3
.4
.5
.6
.7
.8
.9
INSTANTANEOUS FORWARD VOLTAGE,(V)
FIG. 4 - MAXIMUM NON-REPETIVE FORWARD
SURGE CURRENT
120
o
C
T
J
= 125
100
8.3ms Single Half Sine-Wave
(JEDEC Method)
80
o
T
J
= 75 C
60
o
C
T
J
= 50
40
20
0
1
2
5
10
20
50
NUMBER OF CYCLES AT 60 Hz
100
FIG. 5 - TYPICAL JUNCTION CAPACITANCE
1000
T
J
=25
o
C
100
10
.1
.4
1.0
4
10
40
80
REVERSE VOLTAGE, ( V )
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