UF800

UF800 thru UF808 ULTRAFAST SWITCHING RECTIFIERS U LTRAFAST CHENG- YI ELECTRONIC VOLTAGE RANGE -50 TO 800 VOLTS CURRENT -8.0 Amperes TO-220AC FEATURES Plastic package has Underwriters Laboratory Flammability Classification 94V-O utilizing Flame Retardant Epoxy Molding Compound. Exceeds environmental standards of MILS-19500/228. Low power loss, high efficiency. Low forward voltage, high current capability. High surge capacity. Ultra fast recovery times, high voltage. MECHANICAL DATA Case: TO-220AC molded plastic Terminals: Lead solderable per MIL-STD-202, Method 208 Polarity: As marked. Mounting position: Any Weight: 0.08 ounces, 2.24 grams. MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 250C ambient temperature unless otherwise specified. Single phase, half wave, 60 Hz, reistive or inductive load. For capacitive load, derate current by 20%. TYPY NUMBER Maximum Recurrent Peak Reverse Voltage Maximum RMS Voltage Maximum DC Blocking Voltage Maximum Average Forward Rectified Current .375"(9.5mm) lead length @ TC=100 C 0 UF800 50 35 50 UF801 100 70 100 UF802 200 140 200 UF803 300 210 300 8.0 UF804 400 280 400 UF806 600 420 600 UF808 800 560 800 UNITS V V V A Peak Forward Surge Current, 8.3 ms single half sine-wave superimposed on rated load (JEDEC method) Maximum Instantaneous Forward Voltage at 8.0A Maximum D.C Reverse Current at Rated D.C Blocking Voltage @ TA= 25 C @ TA=1250C 0 125 A 1.0 1.3 10 500 50 80 15 -50 to +150 1.7 V A A 100 50 0 Maximum Reverse Recovery Time (Note 1) Typical Junction Capacitance (Note 2) Typical Junction Resistance (Note 3) R JA Operating and Storage Temperature Range Tj, TSTG Ns pF C/W 0 C Notes : 1. Reverse Recovery Test Conditions: IF=0.5A, I R=1.0A, I RR=0.25A 2. Measured at 1 MHZ and applied reverse voltage of 4.0V D.C. 3. Thermal resistance from junction to ambient and from junction to lead length 0.375" (9.5mm) P .C.B. Mounted. UF800 thru UF808 ULTRAFAST SWITCHING RECTIFIERS CHENG- YI ELECTRONIC RATING AND CHARACTERISTICS CURVES UF800 THRU UF808 Fig. 1 - REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM 50 Noninductive 10 Noninductive trr +0.5A () PULSE GENERATOR NOTE 2 (+) 25 Vdc (approx) () D.U.T. 0 -0.25 1 NONInductive OSCILLOSCOPE NOTE 1 (+) NOTES:1. Rise Time=7ns max. Input Impedance=1 megohm. 22pF 2. Rise Time=10ns max. Source Impedance=50 Ohms. -1.0 SET TIME BASE FOR 10ns/cm 1cm Fig. 1 - TYPICAL FORWARD CURRENT DERATING CURVE 20 16 12 8 4 0 Fig. 2 - TYPICAL REVERSE CHARACTERISTICS INSTANTANEOUS RECTIFIED CURRENT, MICROAMPERES. 1000 PEAK FORWARD CURRENT. AMPERES 100 TJ=125 C 0 0 50 100 o 150 10 CASE TEMPERATURE, C TJ=25C 1.0 0 Fig. 3 - MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT PEAK FORWARD CURRENT. AMPERES 125 100 75 50 25 TJ=25 C 8.3ms Single Half Since-Wave JEDEC Method 0 0.1 20 40 60 80 100 120 140 PERCENT OF RATED PEAK REVERSE VOLTAGE 1 2 5 10 20 50 100 Fig. 5 - TYPICAL FORWARD CHARACTERISTICS INSTANTANEOUS FORWARD CURRENT, (A) 80 40 20 10 3.0 1.0 0.3 0.1 0.03 0.01 0.4 0.6 0.8 1.0 1.2 1.4 1.8 Munber of cycles at 60 HZ Fig. 4 - TYPICL JUNCTION CAPACITANCE 210 UF800 CAPACITANCE. (pF) 200 160 120 80 UF808 UF800 40 0 1 2 5 10 20 50 100 200 500 UF808 REVERSE VOLT AGE, VOLTS FORWARD VOLT AGE, VOLTS