B850

B820 thru B860 Surface Mount Schottky Barrier Rectifiers Features: *For Surface Mount Application *Metal-Semiconductor Junction With Guardring *Epitaxial Construction *Very Low Forward Voltage Drop *High Current Capability *Plastic Meterial Has UL Flammability Classification 94V-0 *For Use In Low , And Polarity Protection Applications REVERSE VOLTAGE 20 TO 60 VOLTS FORWARD CURRENT 8.0 AMPERE Mechanical Data: *Case : Molded Plastic *Polarity :Indicated by cathode band *Weight : 0.007 Ounce ,0.21 grams SMC(DO-214AB) SMC Outline Dimension SMC Dim Unit:mm A B C D E G H J Min Max 5.59 6.60 2.75 0.15 7.75 0.10 0.76 2.00 6.22 7.11 3.18 0.31 8.13 0.20 1.52 2.62 WEITRON http://www.weitron.com.tw B820 thru B860 Maximum Ratings and Electrical Characteristics Rating 25 C Ambient Temperature Unless Otherwise Specified. Single Phase Half Wave, 60Hz , Resistive or Inductive Load. For Capacitive Load, Derate Current by 20%. Characteristics Maximum Recurrent Peak Reverse Voltage Maximum RMS Voltage Maximum DC Blocking Voltage Maximum Average Forward Rectified Current @TC=95 C Peak Forward Surge Current, 8.3 ms Single Half Sine-Wave Superimposed on Rated Load (JEDEC Method) Maximum Instantaneous At 8.0A DC Maximum DC Reverse Current @Tj=25 C At Rated DC Blocking Voltage @Tj=100 C Typical Junction Capacitance (Note 1) Typical Thermal Resistance (Note 2) Operating Temperature Range Storage Temperature Range Symbol B820 B830 B840 B850 B860 Unit VRRM VRMS VDC IF (AV) 20 14 20 30 21 30 40 28 40 8.0 50 35 50 60 42 60 V V V A IFSM VF IR CJ R qJL TJ TSTG 0.55 175 0.7 0.5 50 450 10 -55 to+125 -55 to+150 A V mA PF C/W C C NOTES:1.Measured at 1.0MHz applied reverse voltage of 4.0V DC. 2.Thermal Resistance Junction to case. WEITRON http://www.weitron.com.tw B820 thru B860 AVERAGE FORW ARD CURRENT AMPERES 10 8 6 4 2 0 RESISTIVE OR INDUCTIVE LOAD PEAK FORW ARD SURGE CURRENT , AMPERES FIG.1 - FORW ARD CURRENT DERATING CURVE FIG.2 - MAXIMUM NON-REPET ITIVE SURGE CURRENT 300 250 200 150 100 50 0 1 8.3ms Single Half-Sine-W ave (JEDEC METHOD) 25 50 75 100 125 150 175 2 5 10 20 50 100 CASE TEMPERATURE , C NUMBER OF CYCLES AT 60Hz FIG.3 - TYPICAL REVERSE CHARACTERIST ICS 1000 FIG.4 - TYPICAL FORW ARD CHARACTERISTICS 100 INSTANTANEOUS FORW ARD CURRENT ,(A) INSTANTANEOUS REVERSE CURRENT ,(mA) 100 10 B820 ~ B840 10 TJ = 100 C B 850 ~ B860 1.0 TJ = 75 C 1.0 0.1 TJ = 25 C TJ = 25 C 0.01 0 20 40 60 80 100 120 140 0.1 0.1 0.2 0.3 0.4 0.5 PERCENT OF RATED PEAK REVERSE VOLTAGE (%) PULSE W IDTH 300ua s 2% Duty cycle 0.6 0.7 0.8 0.9 1.0 INSTANTANEOUS FORW ARD VOLTAGE , VOLTS FIG.5 - TYPICAL JUNCTION CAPACITANCE 10000 CAPACIT ANCE , (pF) 1000 TJ = 25 C, f= 1MHz 100 0.1 1 4 10 100 REVERSE VO LTAGE , VO LTS http://www.weitron.com.tw WEITRON