unisonic technologies co., ltd SK34 preliminary diode www.unisonic.com.tw 1 of 2 copyright ? 2012 unisonic technologies co., ltd qw-r601-044.b surface mount schottky barrier rectifier ? description the utc SK34 is a schottky rectifier with high current capacity, ultra low thermal resistance, low reverse leakage and low forward voltage. the utc SK34 is suitable for surface mount applications. ? features * high current capability * low forward voltage * low reverse leakage smb + - sma + - ? ordering information ordering number package pin assignment packing lead free halogen free 1 2 SK34l-sma-r SK34g-sma-r sma k a tape reel SK34l-smb-r SK34g-smb-r smb k a tape reel note: pin assignment: a: anode, k: cathode SK34l-sma-r (1)packing type (2)package type (1) r: tape reel (2) sma: sma, smb: smb (3) halogen free, l: lead free (3)lead free
SK34 preliminary diode unisonic technologies co., ltd 2 of 2 www.unisonic.com.tw qw-r601-044.b ? absolute maximum ratings (t a =25 c, unless otherwise specified) parameter symbol ratings unit peak repetitive reverse voltage v rrm 40 v rms voltage v rms 28 v dc blocking voltage v dc 40 v average forward rectified current i ( av ) 3.0 a operating temperature t j -65~+150 c storage temperature t stg -65~+150 c note: absolute maximum ratings are those values be yond which the device could be permanently damaged. absolute maximum ratings are stress ratings only and functional device oper ation is not implied. ? thermal data parameter symbol ratings unit junction to ambient (note) ja 60 c/w note: 8.0mm 2 (0.13mm thick) land pads. ? electrical characteristics (t a =25 c, unless otherwise specified) parameter symbol ratings unit peak forward surge current 8.3ms single half sine-wave superimposed on rated load (jedec method) i fsm 100 a instantaneous forward voltage at 3.0a (note 1) v f 0.50 v dc reverse current at rated dc blocking voltage (note 1) t a =25c i r 0.5 ma t a =100c 20 ma typical total capacitance (note 2) c t 300 pf notes: 1. pulse test pulse width 300 s, duty cycle 2%. 2. measured at 1.0mhz and applied reverse voltage of 4.0v. utc assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all utc products described or contained herein. utc products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. the information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.
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