SR820 thru SR860 SK820 thru SK860 MINIATURE SCHOTTKY BARRIER RECTIFIER CHENG- YI ELECTRONIC VOLTAGE RANGE 20 TO 80 Volts CURRENT 8.0 Amperes TO-220AC FEATURES Low switching noise Low forward voltage drop Low thermal resistance High current capability High surge capability High reliability MECHANICAL DATA Case: TO-220A molded plastic Epoxy: UL 94V-0 rate flame retardant Lead: MIL-STD-202 method 208 guaranteed Mounting position: Any MAXIMUM RATINGS ( At TA=25 C unless otherwise noted) 0 Ratings Symbol SR820 SR830 SR835 SR840 SR845 SR850 SR860 UNITS Symbol SK820 SK830 SK835 SK840 SK845 SK850 SK860 UNITS 50 Maximum Recurrent Peak Reverse Voltage VRRM 20 30 35 40 45 60 Volts Maximum RMS Voltage VRMS 14 21 25 28 32 35 42 Volts Maximum DC Blocking Voltage VDC 20 30 35 40 45 50 60 Volts Maximum Average Forward Rectified Current .375" (9.5mm) lead length Peak Forward Surge Current, 8.3 ms single half sine-wave superimposed on rated load (JEDEC method) Typical Thermal Resistance (Note 1) IO 8.0 Amps IFSM 150 Amps R 0 2.5 JC C/W Typical Junction Capacitance (Note 3) CJ 700 450 Operating Temperature Range TJ -65 to +125 -65 to +150 Storage and Operating Temperature Range TSTG pF 0 C 0 -65 to +150 C ELECTRICAL CHARACTERISTICS ( At TA=25 C unless otherwise noted) 0 Characteristics Symbol Maximum Instantaneous Forward Voltage at 8.0A DC VF 0 Maximum Average Reverse Cruuent @TA=25 C at Rated DC Blocking Voltage @TA=1000C SK820 IR Notes : 1. Thermal Resistance Junction to Case. 2. Suffix "R" for Reverse Polarity 3. Measured at 1MHz and applied reserse voltage of 4.0 Volts. SK830 Sk835 SK840 .65 SK845 SK850 .75 SK860 UNITS Volts 1.0 mAmps 30 mAmps SR820 thru SR860 SK820 thru SK860 MINIATURE SCHOTTKY BARRIER RECTIFIER CHENG- YI ELECTRONIC RATING AND CHARACTERISTICS CURVES SR820 THRU SR860 SK820 THRU SK860 AVERAGE FORWARD CURRENT AMPERES Fig.1 - TYPICAL FORWARD CURRENT DERATING CURVE Fig.2 - TYPICAL REVERSE CHARACTERISTICS 10 10 0 TC=150C 50~ 880 SK K8 ~S 4 8 SK 820 SK 6 INSTANTANEOUS REVERSE CURRENT, (mA) 8 40 2 0 0 50 100 150 LEAD TEMPERATURE, 0C PEAK FORWARD SURGE CURRENT, (A) Fig.3 - MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT 2 5C 0 = TC 75 0 = TC 25 C .01 SK820~SK840 SK850~SK880 8.3ms Single Half Sine Wave JEDEC Method 150 C .1 175 .001 20 40 60 80 100 120 125 PERCENT OF RATED PEAK REVERSE VOLTAGE, (%) 100 75 50 Fig.4 - TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS 25 1 10 100 INSTANTANEOUS FORWARD CURRENT, (A) NUMBER OF CYCLES AT 60 Hz Fig.5 - TYPICAL JUNCTION CAPACITANCE JUNCTION CAPACITANCE, (pF) 0 =1 TC 1.0 4000 SK820~SK840 2000 1000 800 600 400 200 SK850~SK880 50 SK820~SK840 10 SK850~SK880 1.0 TJ=250C Pulse Width-300 s 1% DUTY CYCLE .1 .1 .2 .3 .4 .5 .6 .7 .8 .9 100 .1 1.0 10 REVERSE VOLTAGE(V) 100 INSTANTANEOUS FORWARD VOLTAGE, (V) 1.0