UG12JT, UGF12JT, UGB12JT Series
Vishay Semiconductors
for merly General Semiconductor
www.vishay.com Document Number 88758
230-Jul-02
Maximum Ratings (TC= 25°C unless otherwise noted)
Parameter Symbol
UG12HT UG12JT
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) 12 A
Peak forward surge current 8.3ms single half sine-wave IFSM 135 A
superimposed on rated load (JEDEC Method)
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 UG12HT
UG12JT
Unit
Maximum instantaneous IF= 12A, TJ = 25°C VF1.75 V
forward voltage(4) IF= 12A, TJ = 125°C 1.50
TJ = 25°C 30 µA
Maximum DC reverse current at VRWM TJ = 100°C IR800 µA
TJ = 125°C 4.0 mA
Maximum reverse recovery time at
IF = 0.5A, IR= 1.0A, Irr = 0.25A trr 30 ns
Maximum reverse recovery time 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 = 12A, di/dt = 240A/µs, VR = 400V, Irr = 0.1 IRM
Maximum reverse recovery current at IRM 7.5 A
IF = 12A, di/dt = 96A/µs, VR = 400V, TC= 125°C
Peak forward recovery time at tfr 500 ns
IF = 12A, di/dt = 96A/µs, VF = 1.1V
Thermal Characteristics(TC= 25°C unless otherwise noted)
Parameter Symbol UG12 UGF12 UGB12 Unit
Typical ther mal resistance from junction to case RθJC 1.73 3.04 1.73 °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
UG12HT & UG12JT TO-220AC 45 Anti-Static tube, 50/tube, 2K/carton
UGF12HT & UGF12JT ITO-220AC 45 Anti-Static tube, 50/tube, 2K/car ton
31 13” reel, 800/reel, 4.8K/carton
UGB12HT & UGB12JT TO-263AB 45 Anti-Static tube, 50/tube, 2K/car ton
81 Anti-Static 13” reel, 800/reel, 4.8K/carton