UG18ACT THRU UG18DCT
ULTRAFAST EFFICIENT PLASTIC RECTIFIER
Reverse Voltage -
50 to 200 Volts
TO-220AB
0.415 (10.54) MAX.
0.370 (9.40)
0.360 (9.14)
0.154 (3.91)
0.185 (4.70)
0.175 (4.44)
DIA.
0.148 (3.74)
0.055 (1.39)
0.045 (1.14)
Forward Current -
18.0 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 a free wheeling diode
♦
Ultrafast 25 nanosecond reverse recovery times
♦
Soft recovery characteristics
♦
Excellent high temperature switching
♦
Glass passivated junctions
♦
High temperature soldering guaranteed:
250°C, 0.16” (4.06mm) case for 10 seconds
0.113 (2.87)
0.103 (2.62)
0.145 (3.68)
0.135 (3.43)
0.560 (14.22)
0.530 (13.46)
0.410 (10.41)
0.390 (9.91)
PIN
2
0.635 (16.13)
0.625 (15.87)
1
0.160 (4.06)
0.140 (3.56)
0.560 (14.22)
0.530 (13.46)
3
0.350 (8.89)
0.330 (8.38)
1.148 (29.16)
1.118 (28.40)
0.110 (2.79)
0.100 (2.54)
0.105 (2.67)
0.095 (2.41)
0.037 (0.94)
0.027 (0.68)
0.105 (2.67)
0.095 (2.41)
0.205 (5.20)
0.195 (4.95)
0.022 (0.56)
0.014 (0.35)
MECHANICAL DATA
PIN 1
PIN 3
PIN 2
CASE
Dimensions in inches and (millimeters)
Case:
JEDEC TO-220AB molded plastic body over
passivated chips
Terminals:
Plated leads solderable per MIL-STD-750,
Method 2026
Polarity:
As marked
Mounting Position:
Any
Mounting Torque:
5 in. - lbs. max.
Weight:
0.08 ounce, 2.24 grams
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25°C ambient temperature unless otherwise specified.
SYMBOLS
UG18ACT
UG18BCT
UG18CCT
UG18DCT
UNITS
Maximum repetitive peak reverse voltage
Maximum RMS voltage
Maximum DC blocking voltage
Maximum average forward rectified current at T
C
=105°C
Peak forward surge current
8.3ms single half sine-wave superimposed
on rated load (JEDEC Method) per leg at T
C
=105°C
Maximum instantaneous forward voltage per leg at 9.0A
20A
5.0A, T
J
=100°C
Maximum DC reverse current
T
A
=25°C
at rated DC blocking voltage per leg
T
A
=100°C
Maximum reverse recovery time per leg
(NOTE 1)
Maximum reverse recovery time per leg T
J
=25°C
T
J
=100°C
(NOTE 2)
Maximum recovered stored charge per leg T
J
=25°C
T
J
=100°C
(NOTE 2)
Typical junction capacitance per leg
(NOTE 3)
Typical thermal resistance per leg
(NOTE 4)
Operating junction and storage temperature range
NOTES:
(1) Reverse recovery test conditions: I
F
=0.5A, I
R
=1.0A, Irr=0.25A
(2) t
rr
and Q
rr
measured at: I
F
=9.0A, V
R
=30V, di/dt=50A/µs, I
rr=
10% I
RM
(3) Measured at 1.0 MH
Z
and applied reverse voltage of 4.0 Volts
(4) Thermal resistance from junction to case per leg
V
RRM
V
RMS
V
DC
I
(AV)
I
FSM
50
35
50
100
70
100
18.0
175.0
1.10
1.20
0.95
10.0
300.0
20.0
30.0
50.0
20.0
45.0
30.0
4.0
150
105
150
200
140
200
Volts
Volts
Volts
Amps
Amps
V
F
I
R
t
rr
t
rr
Q
rr
C
J
R
ΘJC
T
J
, T
STG
Volts
µA
ns
ns
nC
pF
°C/W
°C
-65 to +150
4/98
RATINGS AND CHARACTERISTIC CURVES UG18ACT THRU UG18DCT
FIG. 1 -FORWARD CURRENT DERATING CURVE
FIG. 2 - MAXIMUM NON-REPETITIVE PEAK
FORWARD SURGE CURRENT PER LEG
24
AVERAGE FORWARD CURRENT,
AMPERES
RESISTIVE OR INDUCTIVE LOAD
1,000
PEAK FORWARD SURGE CURRENT,
AMPERES
8.3ms SINGLE HALF SINE-WAVE
(JEDEC Method)
T
C
=105°C
20
16
12
8.0
4.0
0
100
0
25
50
75
100 125 150 175
10
CASE TEMPERATURE, °C
1
10
NUMBER OF CYCLES AT 60 H
Z
100
INSTANTANEOUS REVERSE LEAKAGE CURRENT,
MICROAMPERES
FIG. 3 - TYPICAL INSTANTANEOUS FORWARD
CHARACTERISTICS PER LEG
INSTANTANEOUS FORWARD CURRENT,
AMPERES
FIG. 4 - TYPICAL REVERSE CHARACTERISTICS
PER LEG
100
1,000
T
J
=125°C
10
T
J
=25°C
PULSE WIDTH=300µs
1% DUTY CYCLE
100
10
T
J
=100°C
1
1
T
J
=25°C
0.1
0.1
0.01
0.01
0.4
0.6
0.8
1.0
1.2
1.4
1.6
0
20
40
60
80
100
INSTANTANEOUS FORWARD VOLTAGE,
VOLTS
PERCENT OF RATED PEAK REVERSE
VOLTAGE, %
FIG. 5 - REVERSE SWITCHING CHARACTERISTICS
PER LEG
FIG. 6 - TYPICAL JUNCTION CAPACITANCE PER LEG
60
STORED CHARGE/REVERSE
RECOVERY TIME, nC/ns
100
I
F
=9.0A
V
R
=30V
50
40
30
20
di/dt=20A/µs
di/dt=50A/µs
di/dt=100A/µs
di/dt=50A/µs
di/dt=150A/µs
JUNCTION CAPACITANCE, pF
di/dt=100A/µs
T
J
=125°C
f=1.0 MHz
Vsig=50MVp-p
10
di/dt=20A/µs
10
t
rr
Q
rr
0
0
25
50
75
100 125 150 175
1
0.1
1
10
100
JUNCTION TEMPERATURE, °C
REVERSE VOLTAGE, VOLTS
京公网安备 11010802033920号
EEWORLD
