ds30298 rev. 3 - 2 1 of 3 SDM40E20LS www.diodes.com diodes incorporated SDM40E20LS dual surface mount schottky barrier diode features single phase, half wave, 60hz, resistive or inductive load. for capacitive load, derate current by 20%. maximum ratings @ t a = 25 c unless otherwise specified characteristic symbol value unit peak repetitive reverse voltage working peak reverse voltage dc blocking voltage v rrm v rwm v r 20 v rms reverse voltage v r(rms) 14 v forward continuous current (note 1) i fm 0.4 a non-repetitive peak forward surge current 8.3ms single half sine-wave superimposed on rated load (jedec method) i fsm 2a power dissipation (note 1) p d 225 mw typical thermal resistance junction to ambient (note 1) r ja 444 c/w power dissipation (note 2) p d 300 mw typical thermal resistance junction to ambient (note 2) r ja 333 c/w operating and storage temperature range t j, t stg -55 to +125 c a e j l top view m b c h g d k very low forward voltage drop guard ring construction for transient protection high conductance case: sot-23, plastic case material - ul flammability rating classification 94v-0 moisture sensitivity: level 1 per j-std-020a polarity: see diagram leads: solderable per mil-std-202, method 208 also available in lead free plating (matte tin finish). please see ordering information, note 5, on page 3 marking: date code and type code type code: ksw weight: 0.004 grams (approx.) ordering information: see page 3 mechanical data electrical characteristics @ t a = 25 c unless otherwise specified characteristic symbol min typ max unit test conditions reverse breakdown voltage (note 3) v (br)r 20 v i r = 0.5ma forward voltage drop v f 0.310 0.430 v i f = 0.1a i f = 0.5a leakage current (note 3) i r 100 250 a v r = 10v v r = 20v total capacitance c t 170 pf f = 1mhz, v r = 0vdc t c u d o r p w e n notes: 1. device mounted on fr-5 1.0 x 0.75 x 0.062 inch pcb pad layout as shown on diodes inc. suggested pad layout ap02001, which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf. 2. device mounted on alumina pcb, 0.4 inch x 0.3 inch x 0.024 inch; pad layout as shown on diodes inc. sugges ted pad layout document ap02001, which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf. 3. short duration test pulse used to minimize self-heating effect. sot-23 dim min max a 0.37 0.51 b 1.20 1.40 c 2.30 2.50 d 0.89 1.03 e 0.45 0.60 g 1.78 2.05 h 2.80 3.00 j 0.013 0.10 k 0.903 1.10 l 0.45 0.61 m 0.085 0.180 0 8 all dimensions in mm
ds30298 rev. 3 - 2 2 of 3 SDM40E20LS www.diodes.com t c u d o r p w e n 0 0.10 0.20 050100150 i , average f o rward current (a) f(av) t , terminal temperature ( c) t fig. 1 forward current derating curve, per element 0.30 0.40 25 75 125 0.1 1 10 0.01 0.001 0 1.0 0.6 0.8 0.4 0.2 i , instantane o us f o rward current (a) f v , instantaneous forward voltage (v) f fig. 2 typical forward characteristics, per element t = 100oc a t = 75oc a t = 25oc a t=0oc a t = 125oc a t = -65oc a 0.001 0.1 0.01 100 1000 10,000 0 v , reverse voltage (v) r fig. 3 typical reverse characteristics, per element 10 20 10 1 t = -65oc a t = 25oc a t = 75oc a t = 100oc a t = 125oc a t = 0oc a 0 70 50 60 40 30 20 10 0 10 15 5 20 c,t o tal capacitance (pf) t v , reverse voltage (v) r fig. 4 typ. total capacitance vs reverse voltage, per element f = 1mhz
ds30298 rev. 3 - 2 3 of 3 SDM40E20LS www.diodes.com t c u d o r p w e n ordering information device packaging shipping SDM40E20LS-7 sot-23 3000/tape & reel notes: 4. for packaging details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf. 5. for lead free terminal plating part number, please add "-f" suffix to part number above. example: SDM40E20LS-7-f. marking information ksw ym ksw = product type marking code ym = date code marking y = year ex: n = 2002 m = month ex: 9 = september (note 4) month jan feb march apr may jun jul aug sep oct nov dec code 1234567 89 o nd date code key year 2001 2002 2003 2004 2005 2006 2007 2008 2009 code mnpr st u vw
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