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UF1A - UF1M
1.0 AMP. Glass Passivated High Efficient Rectifiers
DO-41/DO-204AL
Features
Plastic package has Underwriters Laboratory
Flammability Classification 94V0
ldally suited for use in very high frequency
switching power supplies, inverters and as free
wheeling diodes
Glass passivated chip junction
Excellent high temperature switching
Ultrafast recovery time for high efficiency
Soft recovery characteristics
High temperature soldering guaranteed:
260
o
C/10 seconds
Green compound with suffix "G" on packing
code & prefix "G" on datecode.
Mechanical Data
Case: JEDEC DO-204AL molded plastic body over
passivated chip
Terminals: Pure tin plate, lead free, solderable per
MIL-STD-750, Method 2026
Polarity: Color band denotes cathode
Weight: 0.34 grams
Ordering Information (example)
Part No.
UF1A
Package
DO-41
Packing
3K / AMMO box
INNER
TAPE
52mm
Packing code
A0
Packing code
(Green)
A0G
Maximum Ratings and Electrical Characteristics
Rating at 25
℃
ambient temperature unless otherwise specified.
Parameter
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Maximum Average Forward Rectified Current
Peak Forward Surge Current, 8.3 ms Single Half Sine-
wave Superimposed on Rated Load (JEDEC method)
Maximum Instantaneous Forward Voltage (Note 1)
@1A
Maximum DC Reverse Current at
Rated DC Blocking Voltage
Typical Junction Capacitance (Note 3)
Typical Thermal Resistance
Operating/Storage Temperature Range
Note 1: Pulse Test with PW=300 usec, 1% Duty Cycle
@ T
A
=25
℃
@ T
A
=125
℃
Symbol UF1A UF1B
V
RRM
V
RMS
V
DC
I
F(AV)
I
FSM
V
F
I
R
Trr
Cj
R
θJA
R
θJL
T
J,
T
STG
50
35
50
100
70
100
UF1D UF1G
200
140
200
400
280
400
1
30
UF1J
600
420
600
UF1K UF1M
800
560
800
1000
700
1000
Units
V
V
V
A
A
1.0
5
150
50
17
60
15
- 55 to + 150
1.7
V
uA
uA
Maximum Reverse Recovery Time (Note 2)
75
nS
pF
O
C/W
O
C
Note 2: Reverse Recovery Test Conditions: I
F
=0.5A, I
R
=1.0A, I
RR
=0.25A
Note 3: Measured at 1 MHz and Applied Reverse Voltage of 4.0 V D.C.
Version:E13
RATINGS AND CHARACTERISTIC CURVES (UF1A THRU UF1M)
FIG.1- MAXIMUM FORWARD CURRENT DERATING
CURVE
1.0
RESISTIVE OR
INDUCTIVE LOAD
INSTANTANEOUS FORWARD CURRENT (A)
1
FIG. 2- TYPICAL FORWARD CHARACTERISTICS
10
AVERAGE FORWARD CURRENT (A)
UF1A-UF1G
0.5
0.1
UF1J-UF1M
0.0
10
30
50
70
90
110
130
150
AMBIENT TEMPERATURE (
o
C)
0.01
TA=25℃
PULSE WIDTH=300uS
1% DUTY CYCLE
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
PEAK FORWARD SURGE CURRENT
(A)
30
25
20
15
10
5
0
1
FIG. 3- MAXIMUM NON-REPETITIVE PEAK FORWARD
SURGE CURRENT
8.3ms Single Half Sine Wave
JEDEC Method
TA=25℃
0.001
FORWARD VOLTAGE (V)
FIG. 5- TYPICAL REVERSE CHARACTERISTICS
10
100
1000
NUMBER OF CYCLES AT 60 Hz
100
TA=125℃
100
UF1J-UF1M
JUNCTION CAPACITANCE (pF)
INSTANTANEOUS REVERSE CURRENT (uA)
FIG. 4- TYPICAL JUNCTION CAPACITANCE
10
TA=100℃
1
UF1A-UF1G
10
0.1
TA=25℃
UF1A-UF1G
UF1J-UF1M
TA=25℃
f=1.0MHz
Vsig=50mVp-p
1
0.1
1
10
100
REVERSE VOLTAGE (V)
0.01
0
20
40
60
80
100
120
140
PERCENT OF RATED PEAK REVERSE VOLTAGE
(%)
Version:E13
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