* For Surface Mount Application
* Glass Passivated Chip
* Low Reverse Leakage Current
* Low Forward Voltage Drop And High Current Capability
* Ultra Fast Switching For High Efficiency
* Plastic Meterial Has UL Flammability Classification 94V-0
* Case : Molded Plastic
* Terminals: Solder Plated Terminal-Solderable per MIL-STD-202, Method 208
* Polarity :Indicated by cathode band
* Weight : 0.003 Ounce ,0.093 grams
REVERSE VOLTAGE
50 TO 1000 VOLTS
FORWARD CURRENT
2.0 AMPERE
http://www.weitron.com.tw
US2A Thru US2M
Surface Mount Ultra Fast Rectifiers
Features:
WEITRON
Mechanical Data SMB(DO-214AA)
Unit:mm
SMB
3.30 3.94
4.06 4.80
1.96 2.21
0.15 0.31
5.00 5.59
0.10 0.20
0.76 1.52
2.00 2.62
SMB Outline Dimension
Dim Min Max
A
B
C
D
E
G
H
J
Maximum Ratings and Electrical Characteristics
Characteristics Symbol Unit
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Maximum Average Forward
Rectified Current @T =75 C
Peak Forward Surge Current,
8.3 ms Single Half Sine-Wave
Superimposed on Rated Load (JEDEC Method)
Maximum Instantaneous At 2.0A DC
Maximum DC Reverse Current @T =25 C
At Rated DC Blocking Voltage @T =100 C
Maximun Reverse Recocery Time(Note1)
Typical Junction Capacitance (Note 2)
Typical Thermal Resistance (Note 3)
Operating Temperature Range
Storage Temperature Range
V
A
A
V
uA
C
C
Rating 25 C Ambient Temperature Unless Otherwise Specified.
Single Phase Half Wave, 60Hz , Resistive or Inductive Load.
For Capacitive Load, Derate Current by 20%.
VRRM
VRMS
VDC
IF(AV)
IFSM
VF
IR
C
J
T
TSTG
50
35
50
100
70
100
200
140
200
400
280
400
600
420
600
800
560
800
1000
700
1000
-55 to+150
-55 to+150
F
C/W
2.Measured at 1.0MHz applied reverse voltage of 4.0V DC.
3.Unit Mounted on PC board with 5.0 mm (0.03mm thick) land areas.
2.0
50
1.0 1.30
5.0
350
25
25
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WEITRON
J
J
US2A Thru US2M
US2A US2B US2D US2G US2KUS2J US2M
1.70
P
R
Trr 50 ns
NOTES:1.Reverse Recovery Test Conditions: F=0.5A, R=1.0A, =0.25A.
III
RR
T
A
A
T
100
2
WEITRON
US2A thru US2M
http://www.weitron.com.tw
trr
Set time base for 50/100 ns/cm
+0.5A
0A
-0.25A
-1.0A
50V DC
Approx
Oscilloscope
(Note 1)
Pulse
Generator
(Note 2)
Device
Under
Test
(+)
(+)
(-)
(-)
0.01
0.1
1.0
10
100
1000
0 20 40 60 80 100 120 140
PERCENT OF R ATED PEAK
,INSTANTANEOUS REVERSE CURRENT(uA)
REVERSE VOLTAGE (%)
T=100°C
j
T=25°C
j
0.01
0.1
1.0
10
00.40.8
I , INST ANT ANEOUS FOR WARD CURRENT (A)
F
V , INSTANTANEOUS FORWARD VOLTAGE (V)
F
IR
1.2 1.6 2.0
US2A - US2D US2G
FIG.1 Forward Current Deration Curve
FIG.3 Forward Surge Current Derating Curve FIG.4 Tpical Reverse Characteristics
FIG.5 Rverse Recover Time Characteristics and Test Circuit
FIG.2 Tpical Forward Characteristics
US2J - US2M
0
0.8
1.6
0
.75
25 50 75 100 125 150 175
I , AVERAGE FOR WARD CURRENT (A)
O
T , TERMINAL TEMPERA TURE (°C)
T
2.0
0.4
1.2
0
10
20
30
110100
I , PEAK FOR WARD SURGE CURRENT (A)
FSM
NUMBER OF C YCLES AT 60Hz
Single Half-Sine-W ave
(JEDEC Method)
40
50
60