US2A thru US2M
SURFACE MOUNT REVERSE VOLTAGE 50 TO 1000 VOLTS
ULTRA FAST RECTIFIERS FORWARD
CURRENT - 2.0 AMPERES
SMA/DO-214AC
.055(1.40)
.062(1.60)
.098(2.50)
.114(2.90)
.157(4.00)
.181(4.60)
.006(.152)
.012(.305)
.078(2.00)
.096(2.44)
.030(0.76)
.060(1.52)
.004(.102)
.008(.203)
.188(4.80)
.208(5.28)
Dimensions in inches and (millimeters)
FEATURES
For surface mounted applications
Low profile package
Built-in strain relief
Easy pick and place
Ultrafast recovery times for high efficiency
Plastic package has Underwriters Laboratory
Flammability classification 94V-0
Glass passivated junction
High temperature soldering
260
o
C/10seconds at terminals
MECHANICAL DATA
Case JEDEC DO-214AC molded plastic
Terminals Solder plated, solderable per
MIL-STD-750, Method 2026
Polarity Indicated by cathode band
Standard Packaging 12mm tape (ELA-481)
Weight 0.064grams
MAXIMUM RATIXGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25
o
C ambient temperature unless otherwise specified
Single phase, half wave, 60Hz, resistive or inductive load
For capacitive load, derate current by 20%
SYMBOL US2A US2B
Maximum Repetitive Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Maximum Average Forward Rectified Current @ T
L
=100 C
Peak Forward Surge Current 8.3ms Single Half Sine-Wave
Superimposed on Rated Load (JEDEC Method) T
A
=55
0
C
MaximumInstantaneous Forward Voltage at 2.0A DC
Maximum DC Reverse Current @T
A
=25
0
C
at Rated DC Blocking Voltage @T
A
=100
0
C
Typical Junctionn Capacitance (NOTE 2)
Maximum Reverse Recovery Time (NOTE 1) T
J
=25
0
C
Maximum Thermal Resistance (NOTE 3)
Operating and Storage Temperature Range
0
US2D US2F US2G US2J
200
140
200
300
210
300
2.0
50
400
280
400
600
420
600
US2K US2M
800
560
800
1000
700
1000
UNITS
Volts
Volts
Volts
Amps
Amps
V
RRM
V
RMS
V
DC
I
(AV)
I
FSM
V
F
I
R
C
J
T
RR
T
J
T
J
T
STG
50
35
50
100
70
100
1.0
5.0
100
50
50
1.3
1.7
Volts
A
30
75
pF
nS
0
-55 to +150
-55 to +150
C
C
0
NOTES
1. Rverse Recovery Test Condibons I
F
=5A, I
R
=1A, l
RR
=0.25A
2. Measured at 1 MHz and applied reverse Voltag of 4.0VDC
3. Measured on P
.C.Board with 0.2 x0.2 (5mmX5mm) Copper Pad Area.
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US2A thru US2M
SURFACE MOUNT REVERSE VOLTAGE 50 TO 1000 VOLTS
RATINGS AND CHARACTERISTIC CURVES US2AA THRU US2MA
Fig. 2 - TYPICAL FORWARD CHARACTERISTICS
PER ELEMENT
10
INSTANTANEOUS FORWARD CURRENT,
AMPERES
UA2A
US2G
TJ=25
0
C
Pulse Width=300 s
2% Duly Cycle
Fig. 1 - DERATING CURVE FOR
OUTPUT RECTIFIED CURRENT
AVERAGE FORWARD RECTIFIED
CURRENT, AMPERES
2.4
2.0
1.6
1.2
0.8
0.4
0
0
20
40
60
80
100 120
o
US2M
1.0
SINGLE PHASE
HALF W AVE
60H
Z
RESISTIVE OR
INDUCTIVE LOAD
P.C.B MOUNTED
ON 0.3x0.3"(8.0x8.0mm)
COPPER PAD AREAS
0.1
140 160
0.01
0.4
0.4
0.8
1.0
1.2
1.4
LEAD TEMPERATURE, C
INSTANTANEOUS FORWARD VOLTAGE, VOLTS
Fig. 4 - TYPICAL REVERSE CHARACTERISTICS
Fig. 3 - MAXIMUM FORWARD SURGE CURRENT
PEAK FORWARD SURGE CURRENT,
AMPERES
INSTANTANEOUS REVERSE
CURRENT MICROAMPERES
60
50
40
30
20
10
0.01
1
2
5
10
20
50
100
NUMBER OF CYCLES AT 60Hz
8.3ms SINGLE HALF SINCE-WAVE
JEDEC METHOD
10
1.0
0.1
TJ=25
0
C
20
40
60
80
100
120
140
PERCENT OF RATED PEAK
REVERSE VOLTAGE
FIG. 5 - TYPICAL JUNCTION CAPACITANCE
PER BRIDGE ELEMENT
100
Fig. 6 - REVERSE RECOVERY TIME CHARACTERISTIC
AND TEST CIRCUIT DIAGRAM
50
Noninductive
10
Noninductive
trr
+0.5A
( )
PULSE
GENERATOR
NOTE 2
CAPACITANCE, pF
(+)
25 Vdc
(approx)
( )
D.U.T.
0
-0.25
10
5
TJ=25 C
f=1.0MHz
Vsig=50mVp-p
0
1
NON-
Inductive
OSCILLOSCOPE
NOTE 1
(+)
1.0
10
REVERSE VOLTAGE, VOLTS
100
NOTES:1. Rise Time=7ns max.
Input Impedance=1 megohm. 22pF
2. Rise Time=10ns max.
Source Impedance=50 Ohms.
-1.0
SET TIME
BASE FOR
10ns/cm
1cm
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