UG8AT THRU UG8DT
ULTRAFAST EFFICIENT PLASTIC RECTIFIER
Reverse Voltage -
50 to 200 Volts
TO-220AC
0.185 (4.70)
0.415 (10.54) MAX.
0.370 (9.40)
0.360 (9.14)
0.154 (3.91)
DIA.
0.148 (3.74)
0.055 (1.39)
0.045 (1.14)
0.175 (4.44)
Forward Current -
8.0 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 reverse
recovery time for high efficiency
♦
Soft recovery characteristics
♦
Excellent high temperature switching
♦
Glass passivated chip junction
♦
High temperature soldering guaranteed:
250°C, 0.16” (4.06) from 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
1
0.160 (4.06)
0.140 (3.56)
0.560 (14.22)
0.530 (13.46)
2
0.635 (16.13)
0.625 (15.87)
0.350 (8.89)
0.330 (8.38)
1.148 (29.16)
1.118 (28.40)
0.110 (2.79)
0.100 (2.54)
MECHANICAL DATA
0.105 (2.67)
0.095 (2.41)
0.037 (0.94)
0.027 (0.68)
0.022 (0.56)
0.014 (0.36)
PIN 1
0.205 (5.20)
0.195 (4.95)
PIN 2
CASE
Dimensions in inches and (millimeters)
Case:
JEDEC TO-220AC molded plastic body over
passivated chip
Terminals:
Plated axial leads, solderable per MIL-STD-750,
Method 2026
Polarity:
As marked
Mounting Position:
Any
Mounting Torque:
5in. - lbs. max.
Weight:
0.064 ounce, 1.81 grams
MAXIMUM RATINGS AND CHARACTERISTICS
Ratings at 25°C ambient temperature unless otherwise specified.
SYMBOLS
UG8AT
UG8BT
UG8CT
UG8DT
UNITS
Maximum repetitive peak reverse voltage
Maximum RMS voltage
Maximum DC blocking voltage
Maximum average forward rectified current
at T
C
=100°C
Peak forward surge current
8.3 ms single half sine-wave superimposed
on rated load (JEDEC Method) at T
C
=100°C
Maximum instantaneous forward voltage at 8.0
20A
5.0A, T
J
=150°C
Maximum DC reverse current
at rated DC blocking voltage
Maximum reverse recovery time
(NOTE 1)
Maximum reverse recovery time
(NOTE 2)
V
RRM
V
RMS
V
DC
I
(AV)
I
FSM
50
35
50
100
70
100
8.0
150
105
150
200
140
200
Volts
Volts
Volts
Amps
Amps
150.0
1.00
1.20
0.95
10.0
300.0
20.0
30.0
50.0
20.0
45.0
45.0
4.0
-55 to+150
V
F
I
R
t
rr
Volts
µA
ns
ns
nC
pF
°C/W
°C
T
A
=25°C
T
A
=100°C
T
J
=25°C
T
J
=100°C
T
J
=25°C
T
J
=100°C
t
rr
Q
rr
C
J
R
ΘJC
T
J
, T
STG
Maximum recovered stored charge
(NOTE 2)
Typical junction capacitance
(NOTE 3)
Typical thermal resistance
(NOTE 4)
Operating junction and storage temperature range
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 I
F
=8.0A, V
R
=30V, di/dt=50A/µs, I
rr
=10% I
RM
for meaurement of t
rr
(3) Measured at 1.0 MH
Z
and applied reverse voltage of 4.0 Volts
(4) Thermal resistance from junction to case
10/23/98
RATINGS AND CHARACTERISTIC CURVES UG8AT THRU UG8DT
FIG. 1 - FORWARD CURRENT DERATING
CURVE
FIG. 2 - MAXIMUM NON-REPETITIVE PEAK
FORWARD SURGE CURRENT
AVERAGE FORWARD RECTIFIED CURRENT,
AMPERES
12
10
8.0
6.0
4.0
2.0
0
0
25
50
RESISTIVE OR INDUCTIVE LOAD
1,000
PEAK FORWARD SURGE CURRENT,
AMPERES
T
C
=100°C
8.3ms SINGLE HALF SINE-WAVE
(JEDEC Method)
100
75
100
125
150
175
10
1
10
NUMBER OF CYCLES AT 60 Hz
CASE TEMPERATURE, °C
100
100
INSTANTANEOUS FORWARD CURRENT,
AMPERES
INSTANTANEOUS REVERSE LEAKAGE CURRENT,
MICROAMPERES
FIG. 3 - TYPICAL INSTANTANEOUS
FORWARD CHARACTERISTICS
FIG. 4 - TYPICAL REVERSE
CHARACTERISTICS
1,000
T
J
=125°C
10
T
J
=25°C
PULSE WIDTH=300µs
1% DUTY CYCLE
100
T
J
=100°C
10
1
1
T
J
=25°C
0.1
0.1
0.01
0.4
0.6
0.8
1.0
1.2
1.4
1.6
0.01
0
20
40
60
80
100
INSTANTANEOUS FORWARD VOLTAGE,
VOLTS
PERCENT OF RATED PEAK REVERSE
VOLTAGE, %
RECOVERED STORED CHARGE/REVERSE
RECOVERY TIME nC/ns
FIG. 5 - REVERSE SWITCHING
CHARACTERISTICS
FIG. 6 - TYPICAL JUNCTION CAPACITANCE
60
50
I
F
=4.0A
V
R
=30V
di/dt= 150A/µs
100
di/dt=100A/µs
di/dt=20A/µs
40
30
20
JUNCTION CAPACITANCE, pF
T
J
=25°C
f=1.0 MH
Z
Vsig=50mVp-p
di/dt=50A/µs
di/dt=100A/µs
di/dt=50A/µs
di/dt=150A/µs
10
1
di/dt=20A/µs
10
t
rr
Q
rr
0
0
25
50
75
100
125
150
175
0.1
0.01
0.1
1
10
100
JUNCTION TEMPERATURE, °C
REVERSE VOLTAGE, VOLTS
PCB Design
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