CHENMKO ENTERPRISE CO.,LTD
SURFACE MOUNT
SCHOTTKY BARRIER RECTIFIER
VOLTAGE RANGE 20 - 40 Volts CURRENT 3.0 Ampere
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
SMD32PT
THRU
SMD34PT
SOD-123
0.028(0.70)
0.018(0.45)
1
0.153(3.90)
0.140(3.55)
0.112(2.85)
0.098(2.50)
2
MECHANICAL DATA
Case:
JEDEC SOD-123 molded plastic
Terminals:
Solder plated, solderable per MIL-STD-750,
Method 2026
Polarity:
Color band denotes cathode end
Weight:
0.001 ounce 0.032 gram
0.071(1.80)
0.055(1.40)
0.053(1.35)
0.035(0.90)
MAX.
0.008(0.2)
0.02(0.5)
Tpy
0.004(0.12)
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25
o
C ambient temperature unless otherwise specified.
Single phase, half wave, 60 H
Z
, resistive or inductive load.
For capacitive load, derate current by 20%.
Dimensions in inches and (millimeters)
SOD-123
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 at T
L
= 45 C
Peak Forward Surge Current 8.3 ms single half sine-wave
o
superimposed on rated load (JEDEC method) T
L
= 45 C
Typical Junction Capacitance (Note 2)
Typical Thermal Resistance (Note 1)
Storage and Operating Temperature Range
o
o
SYMBOL
V
RRM
V
RMS
V
DC
I
O
I
FSM
C
J
R
JL
SMD32PT
20
14
20
SMD33PT
30
21
30
3.0
40
210
80
-65 to +125
SMD23PT
SMD34PT
40
28
40
UNITS
Volts
Volts
Volts
Amps
Amps
pF
o
C/W
o
T
J
, T
STG
C
ELECTRICAL CHARACTERISTICS
( At T
A
= 25
o
C unless otherwise noted )
CHARACTERISTICS
SYMBOL
SMD32PT
SMD33PT
SMD34PT
UNITS
Maximum Instantaneous Forward Voltage at 3.0 A DC
V
F
0.85
0.9
1.0
Volts
Maximum Average Reverse Current
at Rated DC Blocking Voltage
@ T
A
= 25
o
C
I
R
@ T
A
= 100 C
o
1.0
10
mAmps
mAmps
RATING CHARACTERISTIC CURVES ( SMD32PT THRU SMD34PT )
INSTANTANEOUS FORWARD CURRENT, ( A )
FIG. 1 - TYPICAL FORWARD CURRENT DERATING CURVE
AVERAGE FORWARD CURRENT, (A)
3.0
FIG. 2 - TYPICAL INSTANTANEOUS FORWARD
CHARCTERISTICS
10
SMD33PT
SMD32PT
SMD3PT
SMD34PT
2.0
1.0
1.0
Single
Half Wave 60H
Z
Resistive or
Inductive Load
T
J
=125
o
C
Pulse Width = 300us
1% Duty Cycle
0
0
20
40
60
80
100
o
120
140
0.1
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
LEAD TEMPERATURE, ( C )
FIG. 3 - TYPICAL REVERSE CHARACTERISTICS
100
INSTANTANEOUS REVERSE CURRENT, (mA)
INSTANTANEOUS FORWARD VOLTAGE, (V)
FIG. 4 - MAXIMUM NON-REPETITIVE FORWARD
SURGE CURRENT
60
PEAK FORWARD SURGE CURRENT, (A)
10
T
J
= 125
o
C
50
8.3 ms Single Half Sine-Wave
(JEDEC Method)
40
1.0
30
.10
T
J
= 75
o
C
20
.01
T
J
= 25 C
o
10
.001
0
20
40
60
80
100
120
140
PERCENT OF RATED PEAK REVERSE VOLTAGE, ( % )
0
1
2
5
10
20
50
100
NUMBER OF CYCLES AT 60H
Z
FIG. 5 - TYPICAL JUNCTION CAPACITANCE
400
JUNCTION CAPACITANCE, (pF)
200
100
60
40
20
10
.1
.4
1.0
4
10
REVERSE VOLTAGE, (V)
40
T
J
= 25
o
C
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