UF1AB-UF1MB
Surface Mount Rectifiers
VOLTAGE RANGE: 50 --- 1000 V
CURRENT: 1.0 A
SMB
Features
Low cost
Low leakage
Low forward voltage drop
High current capability
Easily cleaned with Alcohol,Isopropanol
and similar solvents
The plastic material carries U/L recognition 94V-0
2.0± 0.15
4.7± 0.25
5.4± 0.2
Mechanical Data
Case:JEDEC SMB,molded plastic
Polarity: Color band denotes cathode
Weight: 0.003 ounces, 0.093 grams
Mounting position: Any
2.3± 0.15
1.3± 0.2
0.203MAX
Dimensions in millimeters
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25
ambient temperature unless otherwise specified.
Single phase,half wave,60 Hz,resistive or inductive load. For capacitive load,derate by 20%.
UF1AB UF1BB UF1DB UF1GB UF1JB UF1KB UF1MB
Device marking code
Maximum recurrent peak reverse voltage
Maximum RMS voltage
Maximum DC blocking voltage
Maximum average forw ard rectified current
@T
L
=90
Peak forw ard surge current
8.3ms single half-sine-w ave
superimposed on rated load
@T
J
=125
3.6± 0.3
0.2± 0.05
UNITS
V
V
V
A
UAB
V
RRM
V
RMS
V
DC
I
F(AV)
50
35
50
UBB
100
70
100
UDB
200
140
200
UGB
400
280
400
1.0
UJB
600
420
600
UKB
800
560
800
UMB
1000
700
1000
I
FSM
V
F
I
R
t
rr
C
J
R
θ
JA
T
J
T
STG
50
15
1.0
30
A
V
A
75
12
ns
pF
/W
Maximum instantaneous forw ard voltage at1.0 A
Maximum reverse current
at rated DC blocking voltage
Typical reverse recovery time
Typical junction capacitance
Typical thermal resistance
@T
A
=25
@T
A
=100
(Note1)
(Note2)
(Note3)
1.4
10
100
1.7
15
- 55 ---- + 150
- 55 ---- + 150
Operating junction temperature range
Storage temperature range
NOTE: 1. Measured with I
F
=0.5A, I
R
=1A, I
rr
=0.25A.
2. Measured at 1.0MH
Z
and applied rev erse v oltage of 4.0V DC.
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mail:lge@luguang.cn
UF1AB-UF1MB
Surface Mount Rectifiers
Ratings AND Charactieristic Curves
FIG.1 -- TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY TIME CHARACTERISTIC
t
rr
50
N 1.
10
N 1.
+0.5A
D.U.T.
(+)
25VDC
(approx)
(-)
1
NONIN-
DUCTIVE
PULSE
GENERATOR
(NOTE2)
OSCILLOSCOPE
(NOTE 1)
0
-0.25A
-1.0A
1cm
NOTES:1.RISE TIME = 7ns MAX.INPUT IMPEDANCE = 1M .22pF.
JJJJJ2.RISE
TIME =10ns MAX.SOURCE IMPEDANCE=50 .
SET TIME BASE FOR 20/30 ns/cm
FIG.2 -- TYPICAL FORWARD CHARACTERISTIC
INSTANTANEOUS FORWARD CURRENT
100
10
FIG.3 -- FORWARD DERATING CURVE
z
400V
AVERAGE FORWARD CURRENT
AMPERES
1.0
0.8
T
J
=25
Pulse Width=300
µ
S
1.0
0.6
Single Phase
Half W 60H
Z
ave
Resistive or
Inductive Load
AMPERES
0.4
50\100\200V
600\800\1000V
0.1
0.2
0
0
0.01
25
50
75
100
125
150
175
0
0.2 0.4 0.6 0.8 1
1.2 1.4 1.6 1.8 2
INSTANTANEOUS FORWARD VOLTAGE, VOLTS
LEAD TEMPERATURE,
FIG.4 -- TYPICAL JUNCTION CAPACITANCE
PEAK FORWARD SURGE CURRENT
FIG.5 -- PEAK FORWARD SURGE CURRENT
JUNCTION CAPACITANCE,pF
50
40
30
8.3ms Single Half
Sine-Wave
200
100
60
40
UF1AB-UF1GB
AMPERES
20
10
6
4
T
J
=25
UF1JB-UF1MB
20
10
0
2
1
0.1 0.2
0.4
1
2
4
10
20
40
100
1
5
10
50
100
REVERSE VOLTAGE,VOLTS
NUMBER OF CYCLES AT 60Hz
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mail:lge@luguang.cn
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