us1a - us1m document number: ds16008 rev. 10 - 2 1 of 4 www.diodes.com october 2011 ? diodes incorporated us1a - us1m 1.0a surface mount ultra-fast rectifier features ? glass passivated die construction ? ultra-fast recovery time for high efficiency ? surge overload rating to 30a peak ? high current capability ? ideally suited for automated assembly ? lead free finish/rohs compliant (note 1) ? green molding compound (no halogen and antimony) (note 2) mechanical data ? case: sma ? case material: molded plastic. ul flammability classification rating 94v-0 ? moisture sensitivity: level 1 per j-std-020 ? terminals: lead free plating (mat te tin finish). solderable per mil-std-202, method 208 ? polarity: cathode band or cathode notch ? weight: 0.064 grams (approximate) ordering information (note 3) part number* case packaging us1x-13-f sma 5000/tape & reel *x = device type, e.g. us1a-13-f. notes: 1. eu directive 2002/95/ec (rohs). all applicable rohs exemptions applied, see eu directive 2002/95/ec annex notes . 2. product manufactured with data code 0924 (week 24, 2009) and newer are built with green molding compound. 3. for packaging details, go to our website at http://www.diodes.com. marking information ? green top view bottom view us1x = product type marking code, ex: us1a = manufacturers? code marking yww = date code marking y = last digit of year (ex: 2 for 2002) ww = week code (01 to 53) yww us1x
us1a - us1m document number: ds16008 rev. 10 - 2 2 of 4 www.diodes.com october 2011 ? diodes incorporated us1a - us1m maximum ratings @t a = 25c unless otherwise specified single phase, half wave, 60hz, re sistive or inductive load. for capacitance load, derate current by 20%. characteristic symbol us1a us1b us1d us1g us1j us1k us1m unit peak repetitive reverse voltage working peak reverse voltage dc blocking voltage (note 4) v rrm v rwm v r 50 100 200 400 600 800 1000 v rms reverse voltage v r ( rms ) 35 70 140 280 420 560 700 v average rectified output current @ t t = 75 ci o 1.0 a non-repetitive peak forward surge current 8.3ms single half sine-wave superimposed on rated load i fsm 30 a thermal characteristics characteristic symbol value unit maximum thermal resistance, junction to terminal r jt 30 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 us1a us1b us1d us1g us1j us1k us1m unit forward voltage drop @ i f = 1.0a v fm 1.0 1.3 1.7 v peak reverse current @ t a = 25 c at rated dc blocking voltage (note 4) @ t a = 100 c i rm 5.0 100 a reverse recovery time (note 5) t r r 50 75 ns typical total capacitance (note 6) c t 20 10 pf notes: 4. short duration pulse test used to minimize self-heating effect. 5. measured at 1.0mhz and app lied reverse voltage of 4.0v dc. 6. measured with i f = 0.5a, i r = 1.0a, i rr = 0.25a. see figure 5. 0 0.5 1.0 25 50 75 100 125 150 i, ave r a g e r e c t i f ied c u r r e n t (a) o t , terminal temperature ( c) fig. 1 forward current derating curve t 0.01 0.1 1.0 10 00.40.8 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 1.2 1.6 2.0 us1a - us1d us1g us1j - us1m
us1a - us1m document number: ds16008 rev. 10 - 2 3 of 4 www.diodes.com october 2011 ? diodes incorporated us1a - us1m 0 10 20 30 40 11 01 0 0 i, p eak f o r wa r d s u r g e c u r r en t (a) fsm number of cycles at 60hz fig. 3 forward surge current derating curve 0.01 0.1 1.0 10 100 1,000 0 20 40 60 80 100 120 140 percent of rated peak reverse voltage (%) fig. 4 typical reverse characteristics t = 100 c j t = 25 c j package outline dimensions sma dim min max a 2.29 2.92 b 4.00 4.60 c 1.27 1.63 d 0.15 0.31 e 4.80 5.59 g 0.05 0.20 h 0.76 1.52 j 2.01 2.30 all dimensions in mm a b c d g h e j
us1a - us1m document number: ds16008 rev. 10 - 2 4 of 4 www.diodes.com october 2011 ? diodes incorporated us1a - us1m 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, enhancements, 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 any product described herein; neither does diodes incorporated convey any license under its patent or trademark rights, nor the rights of others. any customer or user 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 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 com ponents 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) z 6.5 g 1.5 x 1.7 y 2.5 c 4.0 z x c g y
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