1n4448w document number: ds12002 rev. 21 - 2 1 of 4 www.diodes.com april 2014 ? diodes incorporated 1n4448w fast switching surface mount diode features ? fast switching speed ? surface mount package ideally suited for automated insertion ? for general purpose switching applications ? high conductance ? totally lead-free & fully rohs compliant (notes 1 & 2) ? halogen and antimony free. ?green? device (note 3) ? qualified to aec-q101 standards for high reliability mechanical data ? case: sod123 ? case material: molded plastic. ul flammability classification rating 94v-0 ? moisture sensitivity: level 1 per j-std-020 ? terminals: matte tin finish annealed over alloy 42 leadframe (lead free plating). solderable per mil-std-202, method 208 ? polarity: cathode band ? weight: 0.01 grams (approximate) ordering information (note 4) part number compliance case packaging 1N4448W-7-F standard sod123 3000/tape & reel 1n4448wq-7-f automotive sod123 3000/tape & reel notes: 1. no purposely added lead. fully eu directiv e 2002/95/ec (rohs) & 2011/6 5/eu (rohs 2) compliant. 2. see http://www.diodes.com/quality/lead_free.html for more in formation about diodes incorporated?s definitions of halogen- a nd antimony-free, "green" and lead-free. 3. halogen- and antimony-free "green? products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total br + cl) and <1000ppm antimony compounds. 4. for packaging details, go to our website at http://www.diodes.com/p roducts/packages.html marking information date code key year 1998 1999 2000 ? 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 code j k l ? u v w x y z a b c d e f g 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 sod123 t5 = product type marking code ym = date code marking y = year (ex: b = 2014) m = month (ex: 9 = september) t5 ym
1n4448w document number: ds12002 rev. 21 - 2 2 of 4 www.diodes.com april 2014 ? diodes incorporated 1n4448w maximum ratings (@t a = +25c, unless otherwise specified.) characteristic symbol value unit non-repetitive peak reverse voltage v rm 100 v peak repetitive reverse voltage working peak reverse voltage dc blocking voltage v rrm v rwm v r 75 v rms reverse voltage v r ( rms ) 53 v forward continuous current i fm 500 ma average rectified output current i o 250 ma non-repetitive peak forward surge current @t = 1.0 s @t = 1.0s i fsm 4.0 1.0 a thermal characteristics characteristic symbol value unit power dissipation (note 5) p d 400 mw thermal resistance junction to ambient air (note 5) r ja 315 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 6) v ( br ) r 75 ? v i r = 10 a forward voltage v fm 0.62 ? ? ? 0.72 0.855 1.0 1.25 v i f = 5.0ma i f = 10ma i f = 100ma i f = 150ma peak reverse current (note 6) i rm ? 2.5 50 30 25 a a a na v r = 75v v r = 75v, t j = +150c v r = 25v, t j = +150c v r = 20v total capacitance c t ? 4.0 pf v r = 0, f = 1.0mhz reverse recovery time t rr ? 4.0 ns i f = i r = 10ma, i rr = 0.1 x i r , r l = 100 ? notes: 5. part mounted on fr-4 pc boar d with 1 inch by 1 inch pad layout. 6. short duration pulse test used to minimize self-heating effect. 0 25 50 75 100 125 150 p , p o we r d issi p a t i o n (mw) d t , ambient temperature ( c) fig. 1 power derating curve a 0 200 400 500 100 300 r = 315c/w ja 0.1 1 10 100 1000 0 200 400 600 800 1000 1200 1400 1600 figure 2 typical forward characteristics v , instantaneous forward voltage (mv) f i , instantaneous forward current (ma) f t = 85c a t = 125c a t = 150c a t = -55c a t = 25c a
1n4448w document number: ds12002 rev. 21 - 2 3 of 4 www.diodes.com april 2014 ? diodes incorporated 1n4448w package outline dimensions please see ap02002 at http://www.diodes.com /datasheets/ap02002.pdf for latest version. 0.10 1.0 10.0 0.01 0.001 0 20 40 60 80 v , instantaneous reverse voltage (v) fig. 3 typical reverse characteristics r t = 100c a t = 0c a t = 75c a t = 50c a t = 25c a t = -30c a i , instantaneous reverse current (a) r 04 3 2 5 16 v , dc reverse voltage (v) fig. 4 total capacitance vs. reverse voltage r c , t o t al c a p a c i t an c e (pf) t 0 1 2 3 4 0468 210 i , forward current (ma) fig. 5 reverse recovery time vs. forward current f t, r eve r se r e c o ve r y t i m e (ns) rr 0 0.5 1.0 1.5 2.0 2.5 sod123 dim min max a 0.55 typ b 1.40 1.70 c 3.55 3.85 h 2.55 2.85 j 0.00 0.10 k 1.00 1.35 l 0.25 0.40 m 0.10 0.15 0 8 all dimensions in mm k l m c h b a
1n4448w document number: ds12002 rev. 21 - 2 4 of 4 www.diodes.com april 2014 ? diodes incorporated 1n4448w suggested pad layout please see ap02001 at http://www.diodes.com/dat asheets/ap02001.pdf for the latest version. 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 ari sing 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 and all the companies whose products are represented on diodes incorporated website, harmless against all damages. diodes incorporated does not warrant or accept any liability w hatsoever 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. this document is written in english but may be translated into multiple languages for reference. only the english version of t his document is the final and determinative format released by diodes incorporated. 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 ? 2014, diodes incorporated www.diodes.com dimensions value (in mm) g 2.250 x 0.900 x1 4.050 y 0.950 y x x1 g
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