US1AF
THRU
US1MF
1.0 AMP SURFACE MOUNT HIGH EFFICENCY RECTIFIERS
VOLTAGE RANGE
50 to 1000 Volts
CURRENT
FEATURES
* Low forward voltage drop
* High current capability
* High reliability
* High surge current capability
0.110(2.80)
0.094(2.40)
1.0 Ampere
SMAFL
Cathode Band
Top View
0.059(1.50)
0.051(1.30)
MECHANICAL DATA
* Case: Molded plastic
* Epoxy: UL 94V-0 rate flame retardant
* Lead: Axial leads, solderable per MIL-STD-202,
method 208 guranteed
* Polarity: Color band denotes cathode end
* Mounting position: Any
* Weight: 0.34 grams
* Both normal and Pb free product are available:
* Normal:80~95%Sn,5~20%Pb
* Pb free:99 Sn above can meet Rohs enviroment substance
directive request
0.055(1.40)
0.043(1.10)
0.047(1.20)
0.028(0.70)
0.144(3.65)
0.128(3.25)
0.012(0.30)
0.006(0.15)
0.189(4.80)
0.173(4.40)
Dimensions in inches and (millimeters)
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Rating 25 C ambient temperature uniess otherwies specified.
Single phase half wave, 60Hz, 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
See Fig.2
Peak Forward Surge Current, 8.3 ms single half sine-wave
superimposed on rated load (JEDEC method)
Maximum Instantaneous Forward Voltage at 1.0A
Maximum DC Reverse Current
Ta=25 C
at Rated DC Blocking Voltage
Ta=100 C
Maximum Reverse Recovery Time (Note 1)
Typical Junction Capacitance (Note 2)
Operating and Storage Temperature Range Tj, TSTG
NOTES:
US1AF
US1BF
US1DF
US1GF
US1JF
US1KF
US1MF
UNITS
50
35
50
100
70
100
200
140
200
400
280
400
1.0
30
600
420
600
800
560
800
1000
700
1000
V
V
V
V
A
V
uA
uA
nS
pF
C
1.0
5.0
100
50
1.3
1.7
70
15
-65 +150
1. Reverse Recovery Time test condition: IF=0.5A, IR=1.0A, IRR=0.25A
2. Measured at 1MHz and applied reverse voltage of 4.0V D.C.
RATING AND CHARACTERISTIC CURVES (US1AF THRU
US1MF)
FIG.1-TYPICAL FORWARD
CHARACTERISTICS
AVERAGE FORWARD CURRENT,(A)
FIG.2-TYPICAL FORWARD CURRENT
DERATING CURVE
1.2
1.0
0.8
0.6
0.4
0.2
0
Single Phase
Half Wave 60Hz
Resistive Or Inductive Load
10
U
S
1A
F
~
U
S
1D
F
U
S
1G
F
~
U
S
1J
F
INSTANTANEOUS FORWARD CURRENT,(A)
1.0
.1
Tj=25 C
Pulse Width 300us
1% Duty Cycle
U
S1
K
F
~
U
S1
M
F
0
25
50
75
100
125
150
200
AMBIENT TEMPERATURE ( C)
.01
FIG.4-MAXIMUM NON-REPETITIVE FORWARD
SURGE CURRENT
.6
.8
1.0
1.2
1.4
1.6
1.8
PEAK FORWAARD SURGE CURRENT,(A)
.001
.4
50
FORWARD VOLT
AGE,(V)
40
FIG.3- TEST CIRCUIT DIAGRAM AND REVERSE
RECOVERY TIME CHARACTERISTICS
50
W
NONINDUCTIVE
10
W
NONINDUCTIVE
30
Tj=25 C
8.3ms Single Half
Sine Wave
JEDEC method
20
(+)
25Vdc
(approx.)
( )
1
W
NON-
INDUCTIVE
OSCILLISCOPE
(NOTE 1)
D.U.T.
( )
PULSE
GENERATOR
(NOTE 2)
(+)
10
0
1
5
10
50
100
NUMBER OF CYCLES AT 60Hz
NOTES: 1. Rise Time= 7ns max., Input Impedance= 1 megohm.22pF.
2. Rise Time= 10ns max., Source Impedance= 50 ohms.
FIG.5-TYPICAL JUNCTION CAPACITANCE
175
trr
+0.5A
|
|
|
|
|
|
|
|
JUNCTION CAPACITANCE,(pF)
120
100
80
60
40
20
0
-0.25A
-1.0A
1cm
SET TIME BASE FOR
50 / 10ns / cm
0
.01
.05
.1
.5
1
5
10
50
100
REVERSE VOLTAGE,(V)
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