UMMD032
THRU
UMMD034
Elektronische Bauelemente
VOLTAGE 20 V ~ 40 V
0.3 A Surface Mount Schottky Barrier Rectifiers
RoHS Compliant Product
A suffix of “-C” specifies halogen & lead-free
0603
FEATURES
Lead less chip form, no lead damage
Lead-free solder joint, no wire bond & lead frame
Low power loss, High efficiency
High current capability, low VF
Plastic package has Underwriters Laboratory Flammability
Classification 94V-0
B
C
A
G
F
Cathode Band
APPLICATION
Switching mode power supply applications
Portable equipment battery applications
General rectification
DC / DC converter
Telecommunication
E
E
D
Millimeter
Min.
Max.
1.50
1.70
0.80
1.00
0.70 TYP.
0.50
0.80
Millimeter
Min.
Max.
0.30
0.40
R 0.20
0.05 REF.
REF.
A
B
C
D
REF.
E
F
G
MECHANICAL DATA
Case: Packed with FRP substrate and epoxy underfilled
Terminals: Pure tin-plated (lead-free), solderable per MIL-STD-750, method 2026.
Polarity: Laser cathode band marking
Weight : 0.003 gram
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
(T
A
= 25°C)
TYPE NUMBER
Peak Repetitive Peak reverse voltage
Maximum Average Forward Current (See Fig. 1)
Peak Forward Current @ 8.3 ms half sine-wave
Maximum Forward Voltage (Note 1)
I
F
= 0.3 A
Typical Forward Voltage (Note 1)
I
F
= 0.1 A
I
F
= 0.2 A
I
F
= 0.3 A
Maximum Repetitive Peak Reverse Current (Note 1)
At V
R
= 10V. T
A
= 25
°C
Typical Repetitive Peak Reverse Current (Note 1)
At V
R
= Max. V
RRM
, T
A
= 25
°C
Typical Thermal Resistance – Junction to Ambient (Note 2)
Typical Thermal Resistance – Junction to Lead (Note 2)
Junction Capacitance
Operating Temperature Range
Storage temperature
NOTES:
1. Pulse test width P
W
= 300
μsec,
1% duty cycle.
2. Mounted on P.C. board with 0.2 x 0.2” (5.0 x 5.0 mm) copper pad areas.
SYMBOL
V
RRM
I
F(AV)
I
FSM
V
F
UMMD032
20
0.3
2.0
0.50
0.38
0.43
0.47
20
UMMD034
40
UNITS
V
A
A
V
V
I
RRM
50
R
θ
JA
R
θ
JL
C
J
T
J
T
STG
160
110
35
-55 ~ + 125
-65 ~ + 150
uA
°C / W
pF
°C
°C
http://www.SeCoSGmbH.com/
Any changes of specification will not be informed individually.
05-May-2007 Rev. A
Page 1 of 2
UMMD032
THRU
UMMD034
Elektronische Bauelemente
VOLTAGE 20 V ~ 40 V
0.3 A Surface Mount Schottky Barrier Rectifiers
RATINGS AND CHARACTERISTIC CURVES
FIG. 1 - TYPICAL FORWARD CURRENT
DERATING CURVE
0.4
2.5
8.3ms Single Half Sine-Wave
(JEDEC Method)
FIG.2 - MAXIMUM NON-REPETITIVE
PEAK FORWARD SURGE CURRENT
PEAK FORWARD SURGE CURRENT, (A)
0
25
50
75
100
o
AVERAGE FORWARD CURRENT, (A)
2.0
0.3
1.5
0.2
1.0
0.1
0.5
0
125
150
0
1
10
NUMBER OF CYCLES AT 60Hz
100
LEAD TEMPERATURE, ( C)
FIG.3 - TYPICAL INSTANTANEOUS
FORWARD CHARACTERISTICS
1000
IINSTANTANEOUS FORWARD CURRENT, (mA)
1000
INSTANTANEOUS REVERSE CURRENT,
MICROAMPERES
FIG.4 - TYPICAL REVERSE CHARACTERISTICS
100
T
J
=100 C
o
100
10
T
J
=25 C
o
10
1.0
1
Ta=25 C
o
0.10
0.1
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.01
0
10
20
30
40
FORWARD VOLTAGE, (V)
PERCENT OF RATED PEAK REVERSE VOLTAGE V
R
(V)
FIG. 5 - TYPICAL JUNCTION CAPACITANCE
1000
JUCTION CAPACITANCE (pF)
100
10
1
0
5
10
15
20
REVERSE VOLTAGE, (V)
http://www.SeCoSGmbH.com/
Any changes of specification will not be informed individually.
05-May-2007 Rev. A
Page 2 of 2
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