DS30191 Rev. B-1
1 of 2
US3A - US3G
US3A - US3G
3.0A SURFACE MOUNT SUPER-FAST RECTIFIER
Features
SMC
Dim
Min
Max
A
5.59
6.22
B
6.60
7.11
C
2.75
3.18
D
0.15
0.31
E
7.75
8.13
G
0.10
0.20
H
0.76
1.52
J
2.00
2.62
All Dimensions in mm
A
B
C
D
G
H
E
J
Glass Passivated Die Construction
Super-Fast Recovery Time For High Efficiency
Low Forward Voltage Drop and High Current
Capability
Surge Overload Rating to 100A Peak
Ideally Suited for Automated Assembly
Plastic Material: UL Flammability
Classification Rating 94V-0
Mechanical Data
Case: Molded Plastic
Terminals: Solder Plated Terminal - Solderable
per MIL-STD-202, Method 208
Polarity: Cathode Band or Cathode Notch
Weight: 0.21 grams (approx.)
Mounting Position: Any
Marking: Type Number
Maximum Ratings and Electrical Characteristics
@ T
A
= 25
C unless otherwise specified
Single phase, half wave, 60Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
Notes:
1. Unit mounted on PC board with 5.0 mm
2
(0.013 mm thick) copper pads as heat sink.
2. Measured at 1.0MHz and applied reverse voltage of 4.0V DC.
3. Measured with I
F
= 0.5A, I
R
= 1.0A, I
rr
= 0.25A. See Figure 5.
Characteristic
Symbol
US3A
US3B
US3C
US3D
US3F
US3G
Unit
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
V
RRM
V
RWM
V
R
50
100
150
200
300
400
V
RMS Reverse Voltage
V
R(RMS)
35
70
105
140
210
280
V
Average Rectified Output Current
@ T
A
= 55
C
I
O
3.0
A
Non-Repetitive Peak Forward Surge Current
8.3ms Single half sine-wave Superimposed on Rated Load
(JEDEC Method)
I
FSM
100
A
Forward Voltage
@ I
F
= 3.0A
V
FM
0.95
1.25
V
Peak Reverse Current
@ T
A
= 25
C
at Rated DC Blocking Voltage
@ T
A
= 150
C
I
RM
5.0
50
mA
Reverse Recovery Time (Note 3)
t
rr
35
ns
Typical Junction Capacitance (Note 2)
C
j
50
30
pF
Typical Thermal Resistance, Junction to Terminal (Note 1)
R
qJT
15
K/W
Operating and Storage Temperature Range
T
j,
T
STG
-65 to +150
C
ADVANCE
INFORMATION
ADVANCE
INFORMATION
DS30191 Rev. B-1
2 of 2
US3A - US3G
0
25
50
75
1
10
5
100
50
20
I
,
PEAK
FOR
W
ARD
SURGE
CURRENT
(A)
FSM
NUMBER OF CYCLES AT 60Hz
Fig. 3 Surge Current Derating Curve
Single Half-Sine-Wave
(JEDEC Method)
100
125
150
2
1.0
.1
1.0
0
40
60
20
80
120
140
100
I
,
INST
ANT
ANEOUS
REVERSE
CURRENT
(A)
R
PERCENT OF RATED PEAK REVERSE VOLTAGE (%)
Fig. 4 Typical Reverse Characteristics
T = 100 C
j
T = 150 C
j
T = 25 C
j
100
10
0
1.0
2.0
3.0
25
50
75
100
125
150
175
I
,
A
VERAGE
RECTIFIED
CURRENT
(A)
O
T , TERMINAL TEMPERATURE ( C)
Fig. 1 Forward Current Derating Curve
T
50V DC
Approx
50 NI (Non-inductive)
10 NI
1.0
NI
Oscilloscope
(Note 1)
Pulse
Generator
(Note 2)
Device
Under
Test
t
rr
Set time base for 50/100 ns/cm
+0.5A
0A
-0.25A
-1.0A
Notes:
1. Rise Time = 7.0ns max. Input Impedance = 1.0M , 22pF.
2. Rise Time = 10ns max. Input Impedance = 50 .
Fig. 5 Reverse Recovery Time Characteristic and Test Circuit
(+)
(+)
(-)
(-)
0.001
0.01
0.1
1.0
10
0
.2
.6
.8
.4
1.0
1.2
1.4
I
,
INST
ANT
ANEOUS
FOR
W
ARD
CURRENT
(A)
F
V , INSTANTANEOUS FORWARD VOLTAGE (V)
Fig. 2 Typical Forward Characteristics
F
Pulse Width: 300 s
1% Duty Cycle
US3A-US3D
US3F-US3G
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