US1A-US1M
1.0AMP. Surface Mount High Efficient Rectifiers
SMA/DO-214AC
Features
Glass passivated junction chip
For surface mounted application
Low profile package
Built-in strain relief
Ideal for automated placement
Easy pick and place
Ultrafast recovery time for high efficiency
Low forward voltage, low power loss
High temperature soldering guaranteed:
260
o
C/10 seconds on terminals
Plastic material used carries Underwriters
Laboratory Classification 94V0
Mechanical Data
Cases: Molded plastic
Polarity: Indicated by cathode band
Weight: 0.064 gram
Dimensions in inches and (millimeters)
Maximum Ratings and Electrical Characteristics
Rating at 25
o
C ambient temperature unless otherwise specified.
Single phase, half wave, 60 Hz, resistive or inductive load.
For capacitive load, derate current by 20%
Type Number
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Maximum Average Forward Rectified Current
@ T
L
=110
o
C
Peak Forward Surge Current, 8.3 ms Single
Half Sine-wave Superimposed on Rated
Load (JEDEC method )
Maximum Instantaneous Forward Voltage
@ 1.0A
Maximum DC Reverse Current
@ T
A
=25
o
C at Rated DC Blocking Voltage
@ T
A
=125
o
C
Maximum Reverse Recovery Time ( Note 1 )
Typical Junction Capacitance ( Note 2 )
Maximum Thermal Resistance (Note 3)
Symbol
US1A US1B
V
RRM
50
100
V
RMS
35
70
V
DC
50
100
I
(AV)
I
FSM
V
F
I
R
Trr
Cj
US1D US1G US1J US1K US1M
Units
V
V
V
A
A
200
140
200
400
280
400
1.0
30
600
420
600
800 1000
560 700
800 1000
1.0
5.0
150
50
15
1.7
V
uA
uA
nS
pF
o
75
10
75
R
θJA
27
R
θJL
Operating Temperature Range
T
J
-55 to +150
Storage Temperature Range
T
STG
-55 to + 150
1. Reverse Recovery Test Conditions: I
F
=0.5A, I
R
=1.0A, I
RR
=0.25A
Notes:
2. Measured at 1 MHz and Applied V
R
=4.0 Volts
3. P.C.B. Mounted on 0.2 x 0.2” (5.0 x 5.0mm) Copper Pad Area.
C/W
o
o
C
C
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mail:lge@luguang.cn
US1A-US1M
1.0AMP. Surface Mount High Efficient Rectifiers
RATINGS AND CHARACTERISTIC CURVES (US1A THRU US1M)
FIG.1- MAXIMUM FORWARD CURRENT DERATING
CURVE
1.2
50
FIG.2- MAXIMUM NON-REPETITIVE PEAK FORWARD
SURGE CURRENT
PEAK FORWARD SURGE CURRENT. (A)
TL=90
0
C
8.3ms Single Half Sine Wave
JEDEC Method
AVERAGE FORWARD CURRENT. (A)
1.0
RESISTIVE OR
INDUCTIVE LOAD
40
30
0.5
20
P.C.B. MOUNTED ON 0.2 X 0.2"
(5.0X5.0mm) COPPER PAD AREAS
0
0
20
40
60
80
100
120
o
10
0
140
160
180
1
10
NUMBER OF CYCLES AT 60Hz
100
LEAD TEMPERATURE. ( C)
FIG.3- TYPICAL INSTANTANEOUS FORWARD
CHARACTERISTICS
10
INSTANTANEOUS FORWARD CURRENT. (A)
FIG.4- TYPICAL REVERSE CHARACTERISTICS
100
US1A - US1G
1
INSTANTANEOUS REVERSE CURRENT. (mA)
10
Tj=100
0
C
US1J - US1M
0.1
1
Tj=25
0
C
0.1
0.01
Pulse Width=300 s
1% Duty Cycle
0.001
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
0.01
0
20
40
60
80
100
PERCENT OF RATED PEAK REVERSE VOLTAGE. (%)
FORWARD VOLTAGE. (V)
FIG.5- TYPICAL JUNCTION CAPACITANCE
Tj=25
0
C
f=1.0MHz
Vsig=50mVp-p
FIG.6- TYPICAL TRANSIENT THERMAL IMPEDANCE
TRANSIENT THERMAL IMPEDANCE, (
O
C/W)
100
100
100
JUNCTION CAPACITANCE.(pF)
US1
A-U
S1G
10
10
US1J
- US1
M
1
1
0.1
1
10
REVERSE VOLTAGE. (V)
0.1
0.01
0.1
1
T, PULSE DURATION, sec.
10
100
FIG.7- REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM
50W
NONINDUCTIVE
10W
NONINDUCTIVE
+0.5A
(-)
DUT
(+)
50Vdc
(approx)
(-)
PULSE
GENERATOR
(NOTE 2)
1W
NON
INDUCTIVE
OSCILLOSCOPE
(NOTE 1)
(+)
0
-0.25A
trr
NOTES: 1. Rise Time=7ns max. Input Impedance=
1 megohm 22pf
2. Rise Time=10ns max. Sourse Impedance=
50 ohms
-1.0A
1cm
SET TIME BASE FOR
5/ 10ns/ cm
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