US1AF THRU US1MF
1.0 AMP SURFACE MOUNT FAST RECOVERY RECTIFIERS
VOLTAGE RANGE
50 to 1000 Volts
CURRENT
1.0 Ampere
FEATURES
* Ideal for surface mount applications
* Easy pick and place
* Built-in strain relief
* Fast switching speed
SMAF
.146(3.7)
.130(3.3)
.063(1.6)
.051(1.3)
MECHANICAL DATA
.193(4.9)
.173(4.4)
* Case: Molded plastic
* Epoxy: UL 94V-0 rate flame retardant
* Metallurgically bonded construction
* Polarity: Color band denotes cathode end
* Mounting position: Any
.008(0.20)
.005(0.12)
.047(1.20)
.035(0.90)
.106(2.7)
.094(2.4)
.047(1.2)
.031(0.8)
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
US1AF US1BF US1DF US1GF US1JF US1KF US1MF UNITS
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Maximum Average Forward Rectified Current
50
35
50
100
70
100
200
140
200
400
280
400
.375"(9.5mm) Lead Length at Ta=55 C
Peak Forward Surge Current, 8.3 ms single half sine-wave
Maximum DC Reverse Current
30
1.3
1.0
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
800
560
800
1.7
5.0
100
75
50
-50
15
+150
1000
700
1000
V
V
V
A
1.0
superimposed on rated load (JEDEC method)
Maximum Instantaneous Forward Voltage at 1.0A
600
420
600
A
V
A
A
nS
pF
C
NOTES:
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.
REV 1.0 2015 JAN
PAGE:1/2
RATING AND CHARACTERISTIC CURVES (US1AF THRU US1MF)
FIG.2-TYPICAL FORWARD CURRENT
DERATING CURVE
FIG.1-TYPICAL FORWARD
CHARACTERISTICS
AVERAGE FORWARD CURRENT,(A)
AF
-U
US S1DF
1J
1G
FF
US
1M
F
1.0
US
1
.1
US
1.2
1.0
0.8
0.6
Single Phase
Half Wave 60Hz
0.4
Resistive Or Inductive Load
0.375"(9.5mm) Lead Length
0.2
0
0
25
50
75
100
125
150
175
AMBIENT TEMPERATURE ( C)
Tj=25 C
Pulse Width 300us
1% Duty Cycle
.01
.6
.8
1.0
1.2
1.4
1.6
1.8
FORWARD VOLTAGE,(V)
FIG.3- TEST CIRCUIT DIAGRAM AND REVERSE
RECOVERY TIME CHARACTERISTICS
50W
NONINDUCTIVE
10W
NONINDUCTIVE
( )
(+)
D.U.T.
25Vdc
(approx.)
PEAK FORWARD SURGE CURRENT,(A)
.001
.4
FIG.4-MAXIMUM NON-REPETITIVE FORWARD
SURGE CURRENT
PULSE
GENERATOR
(NOTE 2)
( )
30
24
18
Sine Wave
JEDEC method
6
1
5
(+)
1W
NONINDUCTIVE
8.3ms Single Half
Tj=25 C
12
0
50
10
100
NUMBER OF CYCLES AT 60Hz
OSCILLISCOPE
(NOTE 1)
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
70
trr
JUNCTION CAPACITANCE,(pF)
INSTANTANEOUS FORWARD CURRENT,(A)
10
|
|
|
|
|
|
|
|
+0.5A
0
-0.25A
-1.0A
60
50
40
US1A
30
F-US
1G
US1JF
F
20
-US1
MF
10
1cm
SET TIME BASE FOR
50 / 10ns / cm
0
.01
.05
.1
.5
1
5
10
50
100
REVERSE VOLTAGE,(V)
REV 1.0 2015 JAN
PAGE:2/2
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