UG4A THRU UG4D
ULTRAFAST EFFICIENT PLASTIC RECTIFIER
Reverse Voltage - 50 to 200 Volts
Forward Current - 4.0 Amperes
FEATURES
Plastic package has Underwriters Laboratories
Flammability Classification 94V-0
Ideally suited for use in very high frequency switching
power supplies, inverters and as free wheeling diodes
Ultrafast recovery time for high efficiency
Soft recovery characteristics
Excellent high temperature switching
Glass passivated junction
High temperature soldering guaranteed:
250C/10 seconds, 0.375" (9.5mm) lead length,
5 lbs. (2.3kg) tension
MECHANICAL DATA
Case: JEDEC DO-201AD molded plastic body over
passivated chip
Terminals: Plated axial leads, solderable per MIL-STD-750,
Method 2026
Polarity: Color band denotes cathode end
Mounting Position: Any
Weight: 0.045 ounce, 1.2 grams
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25C ambient temperature unless otherwise specified.
SYMBOLS
UG4A
UG4B
UG4C
UG4D
UNITS
Maximum repetitive peak reverse voltage
V
RRM
50
100
150
200
Volts
Maximum RMS voltage
V
RMS
35
70
105
140
Volts
Maximum DC blocking voltage
V
DC
50
100
150
200
Volts
Maximum average forward rectified current
0.375" (9.5mm) lead length at T
L
=75C
I
(AV)
4.0
Amps
Peak forward surge current
8.3 ms single half sine-wave superimposed
I
FSM
150.0
Amps
on rated load (JEDEC Method) at T
L
=75C
Maximum instantaneous forward voltage at 4.0A
V
F
0.95
Volts
Maximum DC reverse current
T
A
=25C
5.0
at rated DC blocking voltage
T
A
=100C
I
R
300.0
A
Maximum reverse recovery time
(NOTE 1)
t
rr
20.0
ns
Maximum reverse recovery time
T
J
=25C
30.0
(NOTE 2)
T
J
=100C
t
rr
50.0
ns
Maximum recovered stored charge
T
J
=25C
15.0
(NOTE 2)
T
J
=100C
Q
rr
30.0
nC
Typical junction capacitance
(NOTE 3)
C
J
20.0
pF
Typical thermal resistance
(NOTE 4)
R
JA
25.0
C/W
Operating junction and storage temperature range
T
J
, T
STG
-55 to +150
C
NOTES:
(1) Reverse recovery test conditions: I
F
=0.5A, I
R
=1.0A, I
rr
=0.25A
(2) t
rr
and Q
RR
measured at tester: I
F
=4.0A, V
R
=30V, di/dt=50A/
s, Irr=10% I
RM
for measurement of t
rr
(3) Measured at 1.0 MH
Z
and applied reverse voltage of 4.0 Volts
(4) Thermal resistance from junction to ambient at 0.375" (9.5mm) lead length
4/98
0.210 (5.3)
0.190 (4.8)
DIA.
0.052 (1.32)
0.048 (1.22)
DIA.
1.0 (25.4)
MIN.
0.375 (9.5)
0.285 (7.2)
1.0 (25.4)
MIN.
DO-201AD
Dimensions in inches and (millimeters)
RATINGS AND CHARACTERISTIC CURVES UG4A THRU UG4D
0
25
50
75
100
125
150
175
0
1.0
2.0
3.0
4.0
5.0
6.0
1
10
100
10
100
200
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
0.01
0.1
1
10
100
0
25
50
75
100 125 150 175
0
10
20
30
40
50
60
0.1
1
10
100
1
10
100
1
0
20
40
60
80
100
0.01
0.1
1
10
100
1,000
FIG. 1 - FORWARD CURRENT
DERATING CURVE
TEMPERATURE, C
A
VERA
GE FOR
W
ARD RECTIFIED CURRENT
,
AMPERES
FIG. 2 - MAXIMUM NON-REPETITIVE PEAK
FORWARD SURGE CURRENT
NUMBER OF CYCLES AT 60 H
Z
PEAK FOR
W
ARD SURGE CURRENT
,
AMPERES
FIG. 3 - TYPICAL INSTANTANEOUS
FORWARD CHARACTERISTICS
FIG. 4 - TYPICAL REVERSE LEAKAGE
CHARACTERISTICS
INST
ANT
ANEOUS FOR
W
ARD CURRENT
,
AMPERES
INST
ANT
ANEOUS REVERSE LEAKA
GE CURRENT
,
MICR
O
AMPERES
INSTANTANEOUS FORWARD VOLTAGE,
VOLTS
PERCENT OF RATED PEAK REVERSE
VOLTAGE, %
FIG. 5 - REVERSE SWITCHING
CHARACTERISTICS
RECO
VERED ST
ORED CHARGE/REVERSE
RECO
VER
Y TIME,
nC/ns
JUNCTION TEMPERATURE, C
FIG. 6 - TYPICAL JUNCTION CAPACITANCE
JUNCTION CAP
A
CIT
ANCE, pF
REVERSE VOLTAGE, VOLTS
T
L
=75
C
8.3ms SINGLE HALF SINE-WAVE
(JEDEC Method)
T
J
=100C
T
J
=25C
T
J
=25C
PULSE WIDTH=300
s
1% DUTY CYCLE
T
J
=25C
f=1.0 MHz
Vsig=50mVp-p
T
A
, AMBIENT
TEMPERATURE
P.C.B. MOUNTED
0.5 x 0.5" (12 x 12mm)
COPPER PADS
T
J
=100C
di/dt=20A/
s
di/dt=150A/
s
di/dt=50A/
s
di/dt=150A/
s
di/dt=20A/
s
di/dt=50A/
s
di/dt=100A/
s
T
L
, LEAD TEMPERATURE
0.375" (9.5mm) LEAD LENGTH
I
F
=4.0A
V
R
=30V
t
rr
Q
rr
RESISTIVE OR INDUCTIVE LOAD
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