BL
GALAXY ELECTRICAL
UF3A--- UF3M
VOLTAGE RANGE: 50 --- 1000 V
CURRENT:
3.0
A
SURFACE MOUNT RECTIFIERS
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
MECHANICAL DATA
Case:JEDEC DO-214AB,molded plastic
Terminals: Axial lead ,solderable per
MIL- STD-202,Method 208
Polarity: Color band denotes cathode
Weight: 0.007 ounces,0.21 grams
Mounting position: Any
DO-214AB(SMC)
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%.
UF3A
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
UF3B
UB
100
70
100
UF3D
UD
200
140
200
UF3G
UG
400
280
400
UF3J
UJ
600
420
600
UF3K
UK
800
560
800
UF3M
UM
1000
700
1000
UNITS
V
V
V
A
UA
V
RRM
V
RMS
V
DC
I
F(AV)
50
35
50
3
.0
I
FSM
V
F
I
R
t
rr
C
J
R
θ
JA
T
J
T
STG
50
15
1.0
100.0
A
V
A
75
12
ns
pF
／Ｗ
Maximum instantaneous forw ard voltage at3.0 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
10.0
200.0
1.7
15.0
- 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.
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2. Measured at 1.0MHZ and applied rev erse v oltage of 4.0V DC.
Document Number 0280019
BL
GALAXY ELECTRICAL
1.
RATINGS AND CHARACTERISTIC CURVES
UF3A --- UF3M
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
400V
FIG.3 -- FORWARD DERATING CURVE
z
AVERAGE FORWARD CURRENT
AMPERES
5
T
J
=25
Pulse Width=300
µ
S
4
1.0
3
Single Phase
Half W 60H
Z
ave
Resistive or
Inductive Load
AMPERES
2
50\100\200V
600\800\1000V
0.1
1
0
0
0.01
0
0.2 0.4 0.6 0.8
1
1.2 1.4 1.6
1.8 2
25
50
75
100
125
150
175
INSTANTANEOUS FORWARD VOLTAGE, VOLTS
LEAD TEMPERATURE,
FIG.4 -- TYPICAL JUNCTION CAPACITANCE
PEAK FORWARD SURGE CURRENT
200
100
FIG.5 -- PEAK FORWARD SURGE CURRENT
JUNCTION CAPACITANCE,pF
60
40
20
10
6
4
T
J
=25
UF3A-UF3G
100
8.3ms Single Half
Sine-Wave
AMPERES
50
2
1
0.1 0.2
0.4
1
2
4
UF3J-UF3M
10
20
40
100
0
1
5
10
50
100
REVERSE VOLTAGE,VOLTS
NUMBER OF CYCLES AT 60Hz
www.galaxycn.com
Document Number 0280019
BL
GALAXY ELECTRICAL
2.
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