bas19 / bas20 / bas21 document number: ds12004 rev. 21 - 2 1 of 4 www.diodes.com november 2011 ? diodes incorporated bas19 / bas20 / bas21 surface mount fast switching diode features ? fast switching speed ? surface mount package ideally suited for automated insertion ? for general purpose switching applications ? high conductance ? lead, halogen and antimony free, rohs compliant ?green? device (notes 1 and 2) ? qualified to aec-q101 standards for high reliability mechanical data ? case: sot23 ? case material: molded plastic. ul flammability classification rating 94v-0 ? moisture sensitivity: level 1 per j-std-020 ? terminals: solderable per mil-std-202, method 208 ? lead free plating (matte tin finish annealed over alloy 42 leadframe). ? polarity: see diagram ? weight: 0.008 grams (approximate) ordering information (note 3) part number qualification case packaging bas19-7-f commercial sot23 3,000/tape & reel bas20-7-f commercial sot23 3,000/tape & reel bas20-13-f commercial sot23 10,000/tape & reel BAS20Q-13-F automotive sot23 10,000/tape & reel bas21-7-f commercial sot23 3,000/tape & reel bas21q-7-f automotive sot23 3,000/tape & reel bas21-13-f commercial sot23 10,000/tape & reel bas21q-13-f automotive sot23 10,000/tape & reel notes: 1. no purposefully added lead. halogen and antimony free. 2. product manufactured with data code v9 (week 33, 2008) and newer are built with green molding compound. product manufactured prior to date code v9 are built with non-green molding compound and may contain halogens or sb 2 o 3 fire retardants. 3. for packaging details, go to our website at http://www.diodes.com. marking information date code key year 2000 2001 2002 ?.. 2009 2010 2011 2012 2013 2014 2015 2016 2017 code l m n ?.. w x y z a b c d e month jan feb mar apr may jun jul aug sep oct nov dec code 1 2 3 4 5 6 7 8 9 o n d top view sot23 top view internal schematic kxx = product type marking code bas19 marking: ka8, kt3; kt2 bas20 marking: kt2, kt3 bas21 marking: kt3 ym = date code marking y = year (ex: y = 2011) m = month (ex: 9 = september) kxx ym
bas19 / bas20 / bas21 document number: ds12004 rev. 21 - 2 2 of 4 www.diodes.com november 2011 ? diodes incorporated bas19 / bas20 / bas21 maximum ratings @t a = 25c unless otherwise specified characteristic symbol bas19 bas20 bas21 unit repetitive peak reverse voltage v rrm 120 200 250 v working peak reverse voltage dc blocking voltage v rwm v r 100 150 200 v rms reverse voltage v r ( rms ) 71 106 141 v forward continuous current (note 4) i fm 400 ma average rectified output current (note 4) i o 200 ma non-repetitive peak forward surge current @ t = 1.0 s @ t = 1.0s i fsm 2.5 0.5 a repetitive peak forward surge current (note 4) i frm 625 ma thermal characteristics characteristic symbol value unit power dissipation (note 4) p d 250 mw thermal resistance junction to ambient air (note 4) r ja 500 c/w operating and storage temperature range t j , t stg -65 to +150 c electrical characteristics @t a = 25c unless otherwise specified characteristic symbol min max unit test condition reverse breakdown voltage (note 5) bas19 bas20 bas21 v (br)r 120 200 250 ? v i r = 100 a forward voltage v f ? 1.0 1.25 v i f = 100ma i f = 200ma reverse current @ rated dc blocking voltage (note 5) i r ? 100 15 na a t j = 25 c t j = 100 c total capacitance c t ? 5.0 pf v r = 0, f = 1.0mhz reverse recovery time t rr ? 50 ns i f = i r = 30ma, i rr = 0.1 x i r , r l = 100 notes: 4. part mounted on fr-4 board with recommended pad lay out, which can be found on our webs ite at http://www.diodes.com. 5. short duration pulse test used to minimize self-heating effect. 01 2 0 160 200 250 200 150 50 40 80 100 0 t , ambient temperature ( c) fig. 1 power derating curve a p , p o we r dissi p a t i o n (mw) d note 4 0.001 0.01 0.1 1 0 0.40.2 0. 6 i, i n s t a n t a n e o u s f o r wa r d c u r r e n t (a) f v , instantaneous forward voltage (v) fig. 2 typical forward characteristics f 0.8 1.2 1.0 1.4
bas19 / bas20 / bas21 document number: ds12004 rev. 21 - 2 3 of 4 www.diodes.com november 2011 ? diodes incorporated bas19 / bas20 / bas21 0.0001 0.01 0.001 0.1 1 10 100 050100 200 150 250 v , instantaneous reverse voltage (v) fig. 3 typical reverse characteristics r i , instantaneous reverse voltage ( a) r 0.0 0.5 1.0 1.5 3.5 3.0 2.5 2.0 4.0 0 10 20 40 30 c , t o t al c a p a c i t an c e (p f ) t v , dc reverse voltage (v) fig. 4 total capacitance vs. reverse voltage r package outline dimensions suggested pad layout sot23 dim min max typ a 0.37 0.51 0.40 b 1.20 1.40 1.30 c 2.30 2.50 2.40 d 0.89 1.03 0.915 f 0.45 0.60 0.535 g 1.78 2.05 1.83 h 2.80 3.00 2.90 j 0.013 0.10 0.05 k 0.903 1.10 1.00 k1 - - 0.400 l 0.45 0.61 0.55 m 0.085 0.18 0.11 0 8 - all dimensions in mm dimensions value (in mm) z 2.9 x 0.8 y 0.9 c 2.0 e 1.35 x e y c z a m j l d f b c h k g k1
bas19 / bas20 / bas21 document number: ds12004 rev. 21 - 2 4 of 4 www.diodes.com november 2011 ? diodes incorporated bas19 / bas20 / bas21 important notice diodes incorporated makes no warranty of any kind, express or implied, with regards to this document, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose (and their equivalents under the laws of any jurisdiction). diodes incorporated and its subsidiaries rese rve the right to make modifications, enhanc ements, improvements, corrections or ot her changes without further notice to this document and any product descri bed herein. diodes incorporated does not assume any liability arising out of the application or use of this document or an y product described herein; neither does di odes incorporated convey any license under its patent or trademark rights, nor the rights of others. any customer or us er of this document or products described herein in such applica tions shall assume all risks of such use and will agree to hold diodes incorporated a nd all the companies whose products are represented on diodes incorporated website, harmless against all damages. diodes incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthoriz ed sales channel. should customers purchase or use diodes inco rporated products for any unintended or una uthorized application, customers shall i ndemnify and hold diodes incorporated and its representativ es harmless against all claims, damages, expenses, and attorney fees arising out of, directly or indirectly, any claim of personal injury or death a ssociated with such unintended or unauthorized application. products described herein may be covered by one or more united states, international or foreign patents pending. product names and markings noted herein may also be covered by one or more united states, international or foreign trademarks. life support diodes incorporated products are specifically not authorized for use as critical component s in life support devices or systems without the express written approval of the chief executive offi cer of diodes incorporated. as used herein: a. life support devices or syst ems are devices or systems which: 1. are intended to implant into the body, or 2. support or sustain life and whose failure to perform when proper ly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in significant injury to the user. b. a critical component is any component in a life support devic e or system whose failure to perform can be reasonably expect ed to cause the failure of the life support device or to affect its safety or effectiveness. customers represent that they have all necessary expertise in the safety and regulatory ramifi cations of their life support dev ices or systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-rel ated requirements concerning the ir products and any use of diodes incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or s ystems-related information or support that may be provided by diodes incorporated. further, customers must fully indemnify diodes incorporate d and its representatives against any damages arisi ng out of the use of diodes incorporated pr oducts in such safety-critical, life suppor t devices or systems. copyright ? 2011, diodes incorporated www.diodes.com
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