1n4448wsf document number: ds35380 rev. 3 - 2 1 of 4 www.diodes.com august 2011 ? diodes incorporated 1n4448wsf new product surface mount fast switching diode features ? fast switching speed: t rr 4.0ns ? low leakage current: i r 25na ? low capacitance: c t 4pf ? flat lead for high thermal efficiency ? small surface mount package ? lead, halogen and antimony free, rohs compliant (note 1) ? "green" device (note 2) ? qualified to aec-q101 standards for high reliability mechanical data ? case: sod323f ? case material: molded plastic, ?green molding compound?. ul flammability classification rating 94v-0 ? moisture sensitivity: level 1 per j-std-020 ? terminal connections: cathode band ? terminals: finish - matte tin annealed over copper alloy leadframe. solderable per mil-std-202, method 208 ? weight: 0.007 grams (approximate) ordering information (note 3) part number qualification case packaging 1n4448wsf-7 commercial sod323f 3000/tape & reel 1N4448WSFQ-7 automotive sod323f 3000/tape & reel notes: 1. no purposefully added lead. halogen and antimony free. 2. diodes inc.'s "green" policy can be found on our website at http://www.diodes.com. 3. for packaging details, go to our website at http://www.diodes.com. marking information date code key year 2011 2012 2013 2014 2015 2016 2017 2018 code y z a b c d e f 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 sod323f tk = product type marking code ym = date code marking y = year (ex: y = 2011) m = month (ex: 9 = september) tk ym
1n4448wsf document number: ds35380 rev. 3 - 2 2 of 4 www.diodes.com august 2011 ? diodes incorporated 1n4448wsf new product 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 0.5 a thermal characteristics characteristic symbol value unit power dissipation (note 4) p d 400 mw thermal resistance junction to ambient air (note 4) r ja 313 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) v ( br ) r 75 ? v i r = 100 a forward voltage v f 0.62 0.72 v i f = 5.0ma ? 0.855 i f = 10ma ? 1.0 i f = 100ma ? 1.25 i f = 150ma leakage current (note 5) i r ? 2.5 a v r = 75v ? 50 a v r = 75v, t j = 150 c ? 30 a v r = 25v, t j = 150 c ? 25 na 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: 4. part mounted on fr-4 pc board with minimum recommended pad layouts, which can be found on our website at http://www/d iodes.com. 5. short duration pulse test used to minimize self-heating.
1n4448wsf document number: ds35380 rev. 3 - 2 3 of 4 www.diodes.com august 2011 ? diodes incorporated 1n4448wsf new product 0 200 025 50 75 100 125 150 p p o we r dissi p a t i o n (mw) d , t , ambient temperature ( c) fig. 1 forward current derating curve a 400 note 4 500 300 100 0.0001 0.001 0.01 0.1 1 0 0.4 0.8 1.2 1.6 v , instantaneous forward voltage (v) fig. 2 typical forward characteristics f i , ins t an t ane o u s f o r wa r d c u r r en t (a) f v , instantaneous reverse voltage (v) fig. 3 typical reverse characteristics r i , ins t an t ane o u s r eve r se c u r r en t (a) r 0.001 0.01 0.1 1 10 100 0 102030405060708090100 t = 25c a t = c a -55 t = 5c a 8 t = 25c a 1 t = c a 150 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 a n c e (pf) t 0 0.5 1 1.5 11 0 f = 1mhz 40 package outline dimensions sod323f dim min max typ a 0.60 0.75 ? b 0.25 0.35 ? c 0.05 0.26 ? d 1.15 1.35 1.25 e 1.60 1.80 1.70 he 2.30 2.70 2.50 l1 0.30 0.50 0.40 1 ? ? 7 2 ? ? 3 1 ? ? 7 2 ? ? 3 all dimensions in mm a he e d b (2x) c l1 2 1 2 1
1n4448wsf document number: ds35380 rev. 3 - 2 4 of 4 www.diodes.com august 2011 ? diodes incorporated 1n4448wsf new product suggested pad layout 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 dimensions value (in mm) x 0.710 y 0.403 c 2.700 c y (2x) x (2x)
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