UG18ACT THRU UG18DCT ULTRAFAST EFFICIENT PLASTIC RECTIFIER Reverse Voltage - 50 to 200 Volts Forward Current - 18.0 Amperes FEATURES TO-220AB 0.185 (4.70) 0.415 (10.54) MAX. 0.370 (9.40) 0.360 (9.14) 0.175 (4.44) 0.154 (3.91) 0.055 (1.39) DIA. 0.148 (3.74) 0.045 (1.14) 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) 0.350 (8.89) 0.635 (16.13) 0.330 (8.38) 0.625 (15.87) 1 PIN 2 1.148 (29.16) 3 1.118 (28.40) 0.110 (2.79) 0.100 (2.54) 0.160 (4.06) 0.140 (3.56) 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) MECHANICAL DATA 0.022 (0.56) 0.014 (0.35) 0.205 (5.20) 0.195 (4.95) ♦ 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 PIN 1 PIN 2 PIN 3 CASE Dimensions in inches and (millimeters) Case: JEDEC TO-220AB molded plastic body over passivated chips Terminals: Plated leads solderable per MIL-STD-750, 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 Maximum instantaneous forward voltage per leg at 9.0A 20A 5.0A, TJ=100°C Maximum DC reverse current TA=25°C at rated DC blocking voltage per leg TA=100°C Maximum reverse recovery time per leg (NOTE 1) Maximum reverse recovery time per leg TJ=25°C TJ=100°C (NOTE 2) Maximum recovered stored charge per leg TJ=25°C TJ=100°C (NOTE 2) Typical junction capacitance per leg (NOTE 3) Typical thermal resistance per leg (NOTE 4) Operating junction and storage temperature range 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 4/98 SYMBOLS UG18ACT UG18BCT UG18CCT UG18DCT UNITS VRRM VRMS VDC 50 35 50 100 70 100 150 105 150 200 140 200 Volts Volts Volts I(AV) 18.0 IFSM 175.0 VF IR trr trr Qrr 1.10 1.20 0.95 10.0 300.0 20.0 30.0 50.0 20.0 45.0 Amps Amps Volts µA ns ns nC CJ RΘJC 30.0 4.0 pF °C/W TJ, TSTG -65 to +150 °C RATINGS AND CHARACTERISTIC CURVES UG18ACT THRU UG18DCT FIG. 2 - MAXIMUM NON-REPETITIVE PEAK FORWARD SURGE CURRENT PER LEG FIG. 1 -FORWARD CURRENT DERATING CURVE 1,000 RESISTIVE OR INDUCTIVE LOAD 20 16 12 8.0 4.0 0 0 25 50 75 100 125 150 175 PEAK FORWARD SURGE CURRENT, AMPERES AVERAGE FORWARD CURRENT, AMPERES 24 8.3ms SINGLE HALF SINE-WAVE (JEDEC Method) TC=105°C 100 10 CASE TEMPERATURE, °C 1 10 100 NUMBER OF CYCLES AT 60 HZ 100 TJ=25°C PULSE WIDTH=300µs 1% DUTY CYCLE 10 1 0.1 0.01 0.4 0.6 0.8 1.0 1.2 1.4 1.6 INSTANTANEOUS FORWARD VOLTAGE, VOLTS FIG. 5 - REVERSE SWITCHING CHARACTERISTICS PER LEG TJ=125°C 100 TJ=100°C 10 1 TJ=25°C 0.1 0.01 0 20 40 60 80 100 PERCENT OF RATED PEAK REVERSE VOLTAGE, % FIG. 6 - TYPICAL JUNCTION CAPACITANCE PER LEG di/dt=100A/µs IF=9.0A VR=30V 50 di/dt=20A/µs 40 di/dt=50A/µs di/dt=100A/µs di/dt=50A/µs di/dt=150A/µs 30 20 di/dt=20A/µs 10 trr Qrr 0 25 50 75 100 125 150 175 JUNCTION TEMPERATURE, °C JUNCTION CAPACITANCE, pF STORED CHARGE/REVERSE RECOVERY TIME, nC/ns 1,000 100 60 0 FIG. 4 - TYPICAL REVERSE CHARACTERISTICS PER LEG INSTANTANEOUS REVERSE LEAKAGE CURRENT, MICROAMPERES INSTANTANEOUS FORWARD CURRENT, AMPERES FIG. 3 - TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS PER LEG TJ=125°C f=1.0 MHz Vsig=50MVp-p 10 1 0.1 1 10 REVERSE VOLTAGE, VOLTS 100