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UG18ACT Datasheet, PDF (1/2 Pages) General Semiconductor – ULTRAFAST EFFICIENT PLASTIC RECTIFIER
UG18ACT THRU UG18DCT
ULTRAFAST EFFICIENT PLASTIC RECTIFIER
Reverse Voltage - 50 to 200 Volts Forward Current - 18.0 Amperes
TO-220AB
0.160 (4.06)
0.140 (3.56)
0.415 (10.54) MAX.
0.370 (9.40)
0.360 (9.14)
0.154 (3.91)
DIA.
0.148 (3.74)
0.113 (2.87)
0.103 (2.62)
0.145 (3.68)
0.135 (3.43)
0.410 (10.41)
0.390 (9.91)
PIN
1
23
0.635 (16.13)
0.625 (15.87)
0.350 (8.89)
0.330 (8.38)
1.148 (29.16)
1.118 (28.40)
0.560 (14.22)
0.530 (13.46)
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)
PIN 1
PIN 3
Dimensions in inches and (millimeters)
0.185 (4.70)
0.175 (4.44)
0.055 (1.39)
0.045 (1.14)
0.560 (14.22)
0.530 (13.46)
0.110 (2.79)
0.100 (2.54)
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
MECHANICAL DATA
Case: JEDEC TO-220AB molded plastic body over
passivated chips
PIN 2
Terminals: Plated leads solderable per MIL-STD-750,
CASE
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.
Maximum repetitive peak reverse voltage
Maximum RMS voltage
Maximum DC blocking voltage
Maximum average forward rectified current at TC=105°C
Peak forward surge current
8.3ms single half sine-wave superimposed
on rated load (JEDEC Method) per leg at TC=105°C
SYMBOLS
VRRM
VRMS
VDC
I(AV)
UG18ACT
50
35
50
UG18BCT UG18CCT
100
150
70
105
100
150
18.0
IFSM
175.0
Maximum instantaneous forward voltage per leg at 9.0A
20A
5.0A, TJ=100°C
VF
Maximum DC reverse current
at rated DC blocking voltage per leg
TA=25°C
TA=100°C
IR
Maximum reverse recovery time per leg (NOTE 1)
trr
Maximum reverse recovery time per leg TJ=25°C
(NOTE 2)
TJ=100°C
trr
Maximum recovered stored charge per leg TJ=25°C
(NOTE 2)
TJ=100°C
Qrr
1.10
1.20
0.95
10.0
300.0
20.0
30.0
50.0
20.0
45.0
Typical junction capacitance per leg (NOTE 3)
Typical thermal resistance per leg (NOTE 4)
Operating junction and storage temperature range
CJ
RΘJC
TJ, TSTG
30.0
4.0
-65 to +150
NOTES: (1) Reverse recovery test conditions: IF=0.5A, IR=1.0A, Irr=0.25A
(2) trr and Qrr measured at: IF=9.0A, VR=30V, di/dt=50A/µs, Irr=10% IRM
(3) Measured at 1.0 MHZ and applied reverse voltage of 4.0 Volts
(4) Thermal resistance from junction to case per leg
UG18DCT
200
140
200
UNITS
Volts
Volts
Volts
Amps
Amps
Volts
µA
ns
ns
nC
pF
°C/W
°C
4/98