ll4148 / ll4448 document number: ds12013 rev. 10 - 3 1 of 3 www.diodes.com may 2012 ? diodes incorporated ll4148 / ll4448 not recommended for new design use 1n4148w / 1n4448 w fast switching surface mount diode features and benefits ? fast switching speed ? surface mount package ideally suited for automatic insertion ? general purpose rectification ? silicon epitaxial planar construction ? lead free finish, rohs compliant (note 1) mechanical data ? case: minimelf ? case material: glass: ul flammability classification rating 94v-0 ? moisture sensitivity: level 1 per j-std-020 ? terminals: finish - sn97.5ag2. 5. solderable per mil-std-202, method 208 ? polarity: cathode band ? marking: cathode band only ? weight: 0.05 grams (approximate) ordering information (note 2) part number case packaging LL4148-13 minimelf 10k/tape & reel, 13-inch ll4448-7 minimelf 2.5k/tape & reel, 7-inch notes: 1. eu directive 2002/95/ec (rohs) & 2011/65/eu (rohs 2). all applicable rohs exemptions applied. 2. for packaging details, go to our website at http://www.diodes.com. maximum ratings @t a = 25c unless otherwise specified characteristic symbol ll4148 ll4448 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 (note 3) i fm 300 500 ma average rectified output current (note 3) i o 150 ma non-repetitive peak forward surge current @ t = 1.0s i fsm 1.0 a @ t = 1.0 s 2.0 power dissipation (note 3) derate above 25c p d 500 1.68 mw mw/c thermal resistance, junction to ambient air (note 3) r ja 300 k/w operating and storage temperature range t j , t stg -65 to +175 c electrical characteristics @t a = 25c unless otherwise specified characteristic symbol min max unit test condition forward voltage ll4148 v f - 1.0 v i f = 10ma ll4448 0.62 0.72 i f = 5.0ma ll4448 - 1.0 i f = 100ma maximum peak reverse current (note 4) i rm - 5.0 a v r = 75v - 50 a v r = 75v, t j = 150c - 30 a v r = 75v, t j = 150c - 25 na v r = 75v capacitance c j - 4.0 pf v r = 0, f = 1.0mhz reverse recovery time t rr - 4.0 ns i f = 10ma, to i r = 1.0ma, v r = 6.0v, r l = 100 ? notes: 3. valid provided that device term inals are kept at ambient temperature. 4. short duration pulse test used to minimize self-heating effect.
ll4148 / ll4448 document number: ds12013 rev. 10 - 3 2 of 3 www.diodes.com may 2012 ? diodes incorporated ll4148 / ll4448 not recommended for new design use 1n4148w / 1n4448 w 10 1.0 100 1,000 0.1 0.01 012 i, ins t an t ane o u s f o r wa r d c u r r en t (ma) f v , instantaneous forward voltage (v) fig. 1 typical forward characteristics f 1 10 100 1,000 10,000 0100200 i, leaka g e c u r r e n t (na) r t , junction temperature ( c) fig. 2 typical leakage current vs. junction temperature j package outline dimensions minimelf dim min max a 3.30 3.70 b 1.30 1.60 c 0.28 0.50 all dimensions in mm c a b
ll4148 / ll4448 document number: ds12013 rev. 10 - 3 3 of 3 www.diodes.com may 2012 ? diodes incorporated ll4148 / ll4448 not recommended for new design use 1n4148w / 1n4448 w 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 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 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 ? 2012, diodes incorporated www.diodes.com
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