UG8HT AND UG8JT
ULTRAFAST SOFT RECOVERY RECTIFIER
Reverse Voltage - 500 to 600 Volts Forward Current - 8.0 Amperes
FEATURES
Plastic package has Underwriters Laboratories
Flammability Classification 94V-0
Ideally suited for freewheeling diode power factor
correction applications
Soft recovery characteristics
Excellent high temperature switching
Planar technology
Optimized to reduce switching losses
High temperature soldering guaranteed:
250C/10 seconds at terminals
MECHANICAL DATA
Case: JEDEC TO-220AC molded plastic body
Terminals: Plated leads, solderable per MIL-STD-750,
Method 2026
Polarity: As marked
Mounting Position: Any
Weight: 0.08 ounce, 2.24 grams
Mounting Torque: 5 in. - lbs. max.
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25C ambient temperature unless otherwise specified.
SYMBOLS
UG8HT
UG8JT
UNITS
Maximum repetitive peak reverse voltage
V
RRM
500
600
Volts
Working peak reverse voltage
V
RWM
400
480
Volts
Maximum RMS voltage
V
RMS
350
420
Volts
Maximum DC blocking voltage
V
DC
500
600
Volts
Maximum average forward rectified current at T
C
=100C
I
(AV)
8.0
Amps
Peak forward surge current
8.3ms single half sine-wave superimposed
I
FSM
100.0
Amps
on rated load (JEDEC Method)
Maximum instantaneous forward voltage at I
F
= 8A
(NOTE 1)
T
J
=25C
1.75
Volts
T
J
=125C
V
F
1.50
Maximum reverse leakage current
T
J
=25C
30
A
at working peak reverse voltage
T
J
=100C
I
R
800
A
T
J
=125C
4.0
mA
Maximum reverse recovery time at I
F
=0.5A, I
R
=1.0A, I
rr
=0.25A
t
rr
25
ns
Reverse recovery time at
Maximum
50
I
F
=1.0A, di/dt=50A/
s, V
R
=30V, I
rr
=0.1 I
RM
Typical
t
rr
35
ns
Typical softness factor (t
b
/t
a
) I
F
=8.0A, di/dt=240A/
s, V
R
=400V I
rr
=0.1 I
RM
S
1.0
-
Maximum reverse recovery current at
I
F
=8.0A, di/dt=64A/
s,V
R
=400V
T
C
=125C
I
RM
5.5
Amps
Typical reverse recovery current at
I
F
=8.0A, di/dt=240A/
s, V
R
=400V
T
C
=125C
I
RM
10.0
Amps
Peak forward recovery time at
Maximum
500
I
F
=8A, di/dt=64A/
s measured at 1.1 V
F
Typical
t
fr
250
ns
Typical thermal resistance from junction to case
R
JC
2.2
C/W
Operating junction and storage temperature range
T
J
, T
STG
-55 to+150
C
NOTE: (1) Pulse test: 300
s pulse width, 1% duty cycle
NOTICE: Advanced product information is subject to change without notice
10/27/98
0.154 (3.91)
0.148 (3.74)
DIA.
0.113 (2.87)
0.103 (2.62)
0.185 (4.70)
0.175 (4.44)
0.055 (1.39)
0.045 (1.14)
0.145 (3.68)
0.135 (3.43)
0.350 (8.89)
0.330 (8.38)
0.160 (4.06)
0.140 (3.56)
0.037 (0.94)
0.027 (0.68)
0.205 (5.20)
0.195 (4.95)
0.560 (14.22)
0.530 (13.46)
0.022 (0.56)
0.014 (0.36)
0.110 (2.79)
0.100 (2.54)
1
2
1.148 (29.16)
1.118 (28.40)
0.105 (2.67)
0.095 (2.41)
0.410 (10.41)
0.390 (9.91)
0.635 (16.13)
0.625 (15.87)
0.560 (14
0.530 (13
PIN
PIN 1
PIN 2
CASE
0.415 (10.54) MAX.
0.370 (9.40)
0.360 (9.14)
TO-220AC
Dimensions in inches and (millimeters)
ADVANCED INFORMATION
ADVANCED INFORMATION
ADVANCED INFORMATION
0
25
50
75
100
125
150
175
2.0
0
12.0
4.0
6.0
8.0
10.0
1
10
100
10
100
1,000
25
50
75
100
125
150
0
50
100
150
200
250
300
350
0.5
1.0
1.5
2.0
2.5
3.0
0.01
0.1
1
10
100
0
20
40
60
80
100
1
10
100
1,000
10,000
1
10
100
1,000
1
10
100
CASE TEMPERATURE, C
PERCENT OF RATED PEAK REVERSE VOLTAGE, %
INSTANTANEOUS FORWARD VOLTAGE, VOLTS
REVERSE VOLTAGE, VOLTS
T
J
, JUNCTION TEMPERATURE, C
A
VERA
GE FOR
W
ARD RECTIFIED CURRENT
,
AMPERES
NUMBER OF CYCLES AT 60 H
Z
8ms SINGLE HALF SINE WAVE
(JEDEC METHOD)
T
J
=T
J
max.
T
J
=25C
PULSE WIDTH=300
s
1% DUTY CYCLE
T
J
=125C
T
J
=100C
T
J
=25C
di/dt=240A/
s
di/dt=60A/
s
di/dt=50A/
s
di/dt=50A/
s
di/dt=60A/
s
di/dt=240A/
s
T
J
=25C
f=1.0 MH
Z
Vsig=50mVp-p
PEAK FOR
W
ARD SURGE CURRENT
,
AMPERS
INST
ANT
ANEOUS FOR
W
ARD CURRENT
,
AMPERES
INST
ANT
ANEOUS REVERSE CURRENT
,
MICR
O
AMPERES
ST
ORED CHARGE/REVERSE RECO
VER
Y
TIME,
nC/ns
JUNCTION CAP
A
CIT
ANCE,
P
F
FIG. 1 - FORWARD CURRENT DERATING CURVE
FIG. 2 - MAXIMUM NON-REPETITIVE PEAK
FORWARD SURGE CURRENT
FIG. 4 - TYPICAL INSTANTANEOUS FORWARD
CHARACTERISTICS
FIG. 3 - TYPICAL REVERSE CHARACTERISTICS
FIG. 5 - REVERSE SWITCHING CHARACTERISTICS
FIG. 6 - TYPICAL JUNCTION CAPACITANCE
Q
rr
t
rr
RESISTIVE OR INDUCTIVE LOAD
I
F
=8.0A
V
R
=30V
RATINGS AND CHARACTERISTIC CURVES UG8HT AND UG8JT
PDF 
ZIP