features l low reverse recovery time l low reverse capacitance l low forward voltage drop l guard ring construction for transient protection mechanical data l case: do - 35 , glass l terminals: solderable per mil - std - 202, method 208 l polarity: indicated by cathode band maximum ratings @ 25 o c unless otherwise specified characteristic symbol sd103a sd103b SD103C peak repetitive reverse voltage v rrm working peak reverse voltage v rwm 40v 30v 20v dc blocking voltage v r rms reverse voltage v r(rms) 28v 21v 14v maximum sigle cycle surge 60hz sine wave i fsm power dissipation(note 1) p d thermal resistance, junction to ambient r junction tmperature t j operation/storage temp. range t stg -55 to +150 o c 300k/w 400mw 15a 125 o c electrical characteri stics @ 25 o c unless otherwise specified charateristic symbol typ e max test cond i t io n sd103a 5.0ua v r =30v leakage sd103b i r ----- 5.0ua v r =20v current SD103C 5.0ua v r =10v maximum forward v fm ----- 0.37v i f =20ma voltage drop 0.60v i f =200ma junction capacitance cj 50pf ----- v r =0v, f=1.0mhz reverse recovery time t rr 10ns ----- i f =i r =50ma, recover to 200ma/0.1i r note : 1. valid provided that electrodes are kept at ambient temperature sd103a thru SD103C small sign al schottky diode s do-35 dimensions inches mm dim min max min max note a --- .166 --- 4.2 b --- .079 --- 2.00 c --- .020 --- .52 d 1.000 --- 25.40 --- a b c d d cathode mark ww w . cn el ec tr .com shanghai lunsure electronic technology co.,ltd tel:0086-21-37185008 fax:0086-21-57152769
i(ma) f t = 25 c j a a ma ms figure 1. typical variation of forward current vs. forward. voltage for primary conduction through the schottky barrier figure 2. typical high current forward conduction curve t =300ms,duty cycle=2% p v f v f v r i f i f i f figure 3. typical non repetitive forward surge current versus pulse width t p i f
sd 10 3 a th ru s d 1 0 3 c ww w . cn el ec tr .com
v pf figure 5. blocking deration versus at various average forward currents temperature t a v r
figure 6. typical capacitance versus reverse voltage c tot sd 10 3 a th ru s d 1 0 3 c ww w . cn ele ct r .com
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