UG8JCT, UGF8JCT, UGB8JCT Series
Vishay Semiconductors
for merly General Semiconductor
Document Number 88766 www.vishay.com
03-Jul-02 1
New Product
Dual Ultrafast Plastic Rectifier SeriesReverse V oltage 500 to 600V
Forward Current 8A
Reverse Recovery Time 25ns
0.08
(2.032)
0.24
(6.096)
0.42
(10.66)
0.63
(17.02)
0.12
(3.05)
0.33
(8.38)
Mounting Pad Layout TO-263AB
Dimensions in inches
and (millimeters)
0.380 (9.65)
0.411 (10.45)
0.320 (8.13)
0.360 (9.14)
0.591(15.00)
0.624 (15.85)
12
0.245 (6.22)
MIN
K
K
PIN 1
PIN 2 K - HEATSINK
0.160 (4.06)
0.190 (4.83)
0.045 (1.14)
0.055 (1.40)
0.015 (0.38)
0.022 (0.56)
0.110 (2.79)
0.140 (3.56)
0.021 (0.53)
0.014 (0.36)
0.047 (1.19)
0.055 (1.40)
0-0.01 (0-0.254)
0.027 (0.686)
0.037 (0.940)
0.105 (2.67)
0.095 (2.41) 0.205 (5.20)
0.195 (4.95)
13
PIN
2
0.060 (1.52)
0.405 (10.27)
0.383 (9.72)
0.191 (4.85)
0.171 (4.35)
0.600 (15.5)
0.580 (14.5)
0.560 (14.22)
0.530 (13.46)
0.037 (0.94)
0.027 (0.69)
0.140 (3.56)
0.130 (3.30)
0.350 (8.89)
0.330 (8.38)
0.188 (4.77)
0.172 (4.36)
0.110 (2.80)
0.100 (2.54)
0.131 (3.39)
0.122 (3.08)
0.110 (2.80)
0.100 (2.54)
0.022 (0.55)
0.014 (0.36)
DIA.
DIA.
0.676 (17.2)
0.646 (16.4)
0.205 (5.20)
0.195 (4.95)
0.105 (2.67)
0.095 (2.41)
PIN 2
PIN 1
PIN 3
ITO-220AB (UGF8JCT Series)
TO-220AB (UG8JCT Series)
TO-263AB (UGB8JCT Series)
123
PIN
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)
0.560 (14.22)
0.530 (13.46)
0.022 (0.56)
0.014 (0.36)
0.110 (2.79)
0.100 (2.54)
0.603 (15.32)
0.573 (14.55)
CASE
1.148 (29.16)
1.118 (28.40)
PIN 2
0.154 (3.91)
0.148 (3.74)
0.113 (2.87)
0.103 (2.62)
0.160 (4.06)
0.140 (3.56)
0.410 (10.41)
0.390 (9.91) 0.635 (16.13)
0.625 (15.87)
0.415 (10.54) MAX.
0.370 (9.40)
0.360 (9.14)
PIN 1
PIN 3
0.028 (0.70)
0.104 (2.65)
0.096 (2.45)
0.035 (0.90)
0.205 (5.20)
0.195 (4.95)
0.105 (2.67)
0.095 (2.41)
Features
• Plastic package has Underwriters Laboratories
Flammability Classification 94V-0
• Ideally suited for free wheeling diode power factor
correction applications
• Soft recover y characteristics
• Excellent high temperature switching
• Optimized to reduce switching losses
• High temperature soldering guaranteed: 250°C/10 seconds
at terminals
• Glass passivated chip junction
Mechanical Data
Case: JEDEC TO-220AB, ITO-220AB & TO-263AB mold-
ed plastic body
Terminals: Plated leads, solderable per
MIL-STD-750, Method 2026
Polarity: As marked
Mounting Position: Any
Mounting T orque: 10 in-lbs maximum
Weight: 0.08 oz., 2.24 g
UG8JCT, UGF8JCT, UGB8JCT Series
Vishay Semiconductors
for merly General Semiconductor
www.vishay.com Document Number 88766
203-Jul-02
Maximum Ratings (TC= 25°C unless otherwise noted)
Parameter Symbol UG8HCT UG8JCT Unit
Maximum repetitive peak reverse voltage VRRM 500 600 V
Maximum working reverse voltage VRWM 400 480 V
Maximum RMS voltage VRMS 350 420 V
Maximum DC blocking voltage VDC 500 600 V
Maximum average forward rectified current IF(AV) 8.0 A
Peak forward surge current 8.3ms single half sine-wave IFSM 65 A
superimposed on rated load (JEDEC Method) per leg at T
C
= 100°C
Operating junction and storage temperature range TJ, TSTG –55 to +150 °C
RMS Isolation voltage (UGF types only) 4500(1)
from terminals to heatsink with t = 1.0 second, RH ≤30% VISOL 3500(2) V
1500(3)
Electrical Characteristics(TC= 25°C unless otherwise noted)
Parameter Symbol UG8HCT UG8JCT Unit
Maximum instantaneous IF= 4A, TJ = 25°C VF1.75 V
forward voltage per leg(4) IF= 4A, TJ = 125°C 1.50
TJ = 25°C 30 µA
Maximum DC reverse current per leg at VRWM TJ = 100°C IR800 µA
TJ = 125°C 4.0 mA
Maximum reverse recovery time per leg at
IF = 0.5A, IR= 1.0A, Irr = 0.25A trr 25 ns
Maximum reverse recovery time per leg at trr 50 ns
IF = 1.0A, di/dt = 50A/µs, VR = 30V, Irr = 0.1 IRM
Typical softness factor (tb/ta)S 0.9 —
IF = 4.0A, di/dt = 240A/µs, VR = 400V, Irr = 0.1 IRM
Maximum reverse recovery current per leg at IRM 3.0 A
IF = 4.0A, di/dt = 32A/µs, VR = 400V, TC= 125°C
Maximum reverse recovery current per leg at IRM 8A
IF = 4.0A, di/dt = 240A/µs, VR = 400V, TC= 125°C
Peak forward recovery time per leg at tfr 500 ns
IF = 4.0A, di/dt = 64A/µs, VF = 1.1VFmax
Thermal Characteristics(TC= 25°C unless otherwise noted)
Parameter Symbol UG8 UGF8 UGB8 Unit
Typical ther mal resistance from junction to case RθJC 3.5 6.0 3.5 °C/W
Notes: (1) Clip mounting (on case), where lead does not overlap heatsink with 0.110” offset (2) Clip mounting (on case), where leads do overlap heatsink
(3) Screw mounting with 4-40 screw, where washer diameter is ≤ 4.9 mm (0.19”) (4) Pulse test: 300µs pulse width, 1% duty cycle
Ordering Information
Product Case Package Code Package Option
UG8HCT - UG8JCT TO-220AB 45 Anti-Static tube, 50/tube, 2K/carton
UGF8HCT - UGF8JCT ITO-220AB 45 Anti-Static tube, 50/tube, 2K/car ton
31 13” reel, 800/reel, 4.8K/car ton
UGB8HCT - UGB8JCT TO-263AB 45 Anti-Static tube, 50/tube, 2K/car ton
81 Anti-Static 13” reel, 800/reel, 4.8K/car ton
UG8JCT, UGF8JCT, UGB8JCT Series
Vishay Semiconductors
for merly General Semiconductor
Document Number 88766 www.vishay.com
03-Jul-02 3
Ratings and
Characteristic Curves(TA= 25°C unless otherwise noted)
1 10010
Peak Forward Surge Current (A)
Number of Cycles at 60 HZ
00
12
10
6
8
2
4
25 50 75 100 125 150
Fig. 1 -- Maximum Forward Current
Derating Curve
Average Forward Rectified Current (A)
Case Temperature (°C)
0.5 1.0 1.5 2.0 2.5
Instantaneous Forward Voltage (V)
Fig. 3 -- Typical Instantaneous
Forward Characteristics Per Leg
020 6040 10080
Fig. 4 -- Typical Reverse Leakage
Characteristics Per Leg
Instantaneous Reverse Current (µA)
Percent of Rated Peak Reverse Voltage (%)
0.01
0.1
10
100
1
Instantaneous Forward Current (A)
Reverse Voltage (V)
Junction Capacitance (pF)
1 10 100
100
10
1
10
100
1,000
10,000
1
TJ = 25°C max.
Pulse Width = 300µs
1% Duty Cycle
TJ = 25°C
f = 1.0MHZ
Vsig = 50mvp-p 0
120
140
100
60
80
20
40
25 50 75 100 125 150
Fig. 6 -- Reverse Switching
Characteristics Per Leg
Stored Charge/Reverse Recovery Time,
(nC/ns)
TJ, Junction Temperature (°C)
Qrr
Trr
IF = 4A
Vr = 30V
Fig. 2 -- Maximum Non-Repetitive Peak
Forward Surge Current Per Leg
Fig. 5 -- Typical Junction Capacitance
P er Leg
di/dt =
UG8JCT, UGB8JCT
UGF8JCT
P.C.B. with 7.5 x 7.5 x 0.3cm
Copper Pad 0
20
40
60
80
100
