SK32BG THRU SK310BG 21201 Itasca St. Chatsworth, CA 91311 Phone: (818) 701-4933 Fax: (818) 701-4939 Features * * * * 3 Amp Schottky Rectifier 20 to 80 Volts Same Electrical Characteristics As The SMC Version Very Low Cost Can Be Up To 40% Smaller Than The SMC To Save Precious Board Space And Can Use The Same Solder Pad High Current Capability With Low Forward Voltage For Surface Mount Applications * * DO-215AA (SMBG) Maximum Ratings * * * H Cathode Band Operating Temperature: -65C to +125C Storage Temperature: -65C to +125C Maximum Thermal Resistance; 12C/W Junction To Lead Microsemi Part Number Device Marking SK32BG SK33BG SK34BG SK35BG SK36BG SK38BG SK310BG SK32B SK33B SK34B SK35B SK36B SK38B SK310B Maximum Recurrent Peak Reverse Voltage 20V 30V 40V 50V 60V 80V 100V Maximum RMS Voltage 14V 21V 28V 35V 42V 56V 70V J Maximum DC Blocking Voltage 20V 30V 40V 50V 60V 80V 100V Electrical Characteristics @ 25C Unless Otherwise Specified Average Forward IF(AV) 3.0A TA = 105C Current Peak Forward Surge IFSM 80A 8.3ms, half sine Current Maximum Instantaneous Forward Voltage .50V IFM = 3.0A; SK32BG-SK34BG VF .75V SK35BG-SK310BG TA = 25C* Maximum DC .5mA Reverse Current At IR TA = 25C 20mA Rated DC Blocking TA = 100C Voltage Typical Junction CJ 155pF Measured at Capacitance 1.0MHz, VR=4.0V sec, *Pulse test: Pulse width 200 Duty cycle 2% A E C D B F G DIMENSIONS DIM A B C D E F G H J INCHES MIN .075 .081 .004 --.015 .065 .235 .160 .130 MM MIN 1.90 2.06 .10 --.38 1.65 5.97 4.06 3.30 MAX .095 .087 .008 .02 .03 .084 .255 .180 .155 MAX 2.42 2.21 .20 .51 .76 2.13 6.48 4.57 3.94 SUGGESTED SOLDER PAD LAYOUT 0.190" 0.095" 0.075" NOTE SK32BG thru SK310BG Figure 1 Typical Forward Characteristics Figure 2 Forward Derating Curve 100 3.0 60 40 2.5 20 2.0 SK32BG-SK34BG 10 6 1.5 SK36BG-SK310BG 4 Amps 2 Amps 1.0 1 .5 .6 Single Phase, Half Wave 60Hz Resistive or Inductive Load .4 0 .2 60 40 80 100 120 140 160 .1 C .06 Average Forward Rectified Current - Amperes versus Ambient Temperature - C .04 .02 .01 .4 .2 .6 .8 1.0 1.4 1.2 Volts Instantaneous Forward Current - Amperes versus Instantaneous Forward Voltage - Volts Figure 3 Junction Capacitance 100 600 400 200 pF 100 60 40 20 10 .1 .2 .4 1 2 10 4 20 40 Volts Junction Capacitance - pF versus Reverse Voltage - Volts 100 200 400 1000 SK32BG thru SK310BG Figure 5 Peak Forward Surge Current 150 Figure 4 Typical Reverse Characteristics 1000 125 600 100 400 75 200 Amps 100 Amps 50 60 25 40 0 20 1 2 4 6 8 10 20 40 60 80 100 Cycles 10 Peak Forward Surge Current - Amperes versus Number Of Cycles At 60Hz - Cycles 6 4 2 1 20 40 60 80 100 12 0 140 % Instantaneous Reverse Leakage Current - MicroAmperes versus Percent Of Rated Peak Reverse Voltage (VRWM) - % Figure 6 New SMB Assembly Round Lead