1n4448hwt document number: ds30395 rev. 10 - 2 1 of 4 www.diodes.com september 2013 ? diodes incorporated 1n4448hwt surface mount fast switching diode features ? fast switching speed ? ultra-small surface mount package ? for general purpose switching applications ? high conductance ? totally lead-free & fully rohs compliant (notes 1 & 2) ? halogen and antimony free. ?green? device (note 3) mechanical data ? case: sod523 ? 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: matte tin finish (lead free plating) annealed over alloy 42 leadframe. solderable per mil-std-202, method 208 ? weight: 0.002 grams (approximate) ordering information (notes 4 & 5) part number (note 6) case packaging 1N4448HWT-7 sod523 3000/tape & reel 1n4448hwt-13 sod523 10000/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 5. product manufactured with date code 0627 (week 27, 2006) and newer are built with green molding compound. product manufactur ed prior to date code 0627 are built with non-green molding compound and may contain halogens or sb 2 o 3 fire retardants. 6. dispensed in every other cavity of the tape. marking information 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 80 v rms reverse voltage v r ( rms ) 57 v forward continuous current i fm 250 ma average rectified output current i o 125 ma non-repetitive peak forward surge current @t = 1.0 s @t = 1.0s i fsm 2.0 1.0 a top view sod523 t8 = product type marking code t8 cathode band
1n4448hwt document number: ds30395 rev. 10 - 2 2 of 4 www.diodes.com september 2013 ? diodes incorporated 1n4448hwt thermal characteristics characteristic symbol value unit power dissipation (note 7) p d 150 mw thermal resistance junction to ambient (note 7) r ? electrical characteristics (@t a = +25c, unless otherwise specified.) characteristic symbol min max unit test conditions reverse breakdown voltage (note 8) v ( br ) r 80 ? v i r = 100 ? a forward voltage v f 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 8) i r ? 100 50 30 25 na a a na v r = 80v v r = 75v, t j = +150c v r = 25v, t j = +150c v r = 20v total capacitance c t ? 3.0 pf v r = 0.5v, 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: 7. part mounted on fr-4 board with recommended pad layou t, which can be found on our websit e at http://www.diodes.com. 8. short duration pulse test used to minimize self-heating effect. 0 50 025 50 75 100 125 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 100 200 150 150 0.1 1 10 100 1000 0 200 400 600 800 1000 1200 1400 1600 fig. 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
1n4448hwt document number: ds30395 rev. 10 - 2 3 of 4 www.diodes.com september 2013 ? diodes incorporated 1n4448hwt package outline dimensions please see ap02002 at http://www.diodes.com /datasheets/ap02002.pdf for latest version. suggested pad layout please see ap02001 at http://www.diodes.com/dat asheets/ap02001.pdf for the 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 = 100 c a t = 0c a t = 75c a t = 50c a t = 25c a t = -30c a i , instantaneous reverse current ( a) r ? 0468 210 i , forward current (ma) fig. 4 reverse recovery time vs. forward current f t, r eve r se r e c o ve r y t ime (ns) rr 0 0.5 1.0 1.5 2.0 2.5 sod523 dim min max a 0.25 0.35 b 0.70 0.90 c 1.50 1.70 h 1.10 1.30 k 0.55 0.65 l 0.10 0.30 m 0.10 0.12 all dimensions in mm dimensions value (in mm) g 0.80 x 0.60 x1 2.00 y 0.70 h c a b k m l x1 y x g
1n4448hwt document number: ds30395 rev. 10 - 2 4 of 4 www.diodes.com september 2013 ? diodes incorporated 1n4448hwt 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 ? 2013, diodes incorporated www.diodes.com
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