skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@ skyworksinc.com ? www.skyworksinc.com 200132k ? skyworks proprietary information ? products and product in formation are subject to cha nge without notice ? apr il 8, 2015 1 data sheet SMS3925-040LF: low capacitance, high voltage schottky diode applications ? wireless handsets and general purpose switching systems features ? miniature sod-882 package ? package is rated msl1, 260 ? c per jedec j-std-020 s kywork s green tm product s are compliant with all applicable legi s lation and are halogen-free. for additional information, refer to skyworks de?nition of green tm , document number s q04C0074. description the SMS3925-040LF is a 40 v, 0.6 pf rf schottky diode designed for use as a level detector in wireless handsets and for general purpose low-cost, high-volume switching applications. table 1 describes the package and marking of the SMS3925-040LF. table 1. SMS3925-040LF packaging and marking single sod-882 g reen? SMS3925-040LF marking: 2 l s = 0.45 nh the pb-free symbol or lf in the part number denotes a lead-free, rohs-compliant package unless otherwise noted as g reen?. tin/lead (sn/pb) packaging is not recommended for new designs.
data sheet ? sms3925 series schottky diodes skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@ skyworksinc.com ? www.skyworksinc.com 2 april 8, 2015 ? skyworks prop rietary information ? products and product information are subj ect to change without notice ? 200132k electrical and mechanical specifications the absolute maximum ratings of the SMS3925-040LF are provided in table 2. electrical specifications are provided in table 3. the associated spice model parameters are provided in table 4. the total capacitance and reverse voltage are plotted in figure 1. package dimensions and tape and reel dimensions are shown in figures 2 and 3, respectively. package and handling information instructions on the shipping container label regarding exposure to moisture after the container seal is broken must be followed. otherwise, problems related to moisture absorption may occur when the part is subjected to high temperature during solder assembly. the SMS3925-040LF is rated to moisture sensitivity level 1 (msl1) at 260 ? c. it can be used for lead or lead-free soldering. for additional information, refer to the skyworks application note, solder reflow information , document number 200164. care must be taken when attaching this product, whether it is done manually or in a production solder reflow environment. production quantities of this product are shipped in a standard tape and reel format. table 2. SMS3925-040LF absolute maximum ratings (note 1) parameter symbol minimum maximum units reverse voltage v r 40 v forward current i f 50 ma power dissipation p d 250 mw storage temperature t st g C65 +150 ? c operating temperature t a C65 +150 ? c junction temperature t j +150 ? c electrostatic discharge: human body model (hbm), class 0 esd <250 v note 1: exposure to maximum rating conditions for extended periods may reduce device reliability. there is no damage to device with on ly one parameter set at the limit and all other parameters set at or below their nominal value. exceeding any of the limits listed here may result in permanent damage to the d evice. caution : although this device is designed to be as robust as possible, electrostatic discharge (esd) can damage this device. this devi ce must be protected at all times from esd. static charges may eas ily produce potentials of several kilovolts on the human body or equipment, which can discharge without detection. industry-standard esd precautions should be used at all times. table 3. SMS3925-040LF electrical specifications (note 1) (t a = +25 ? c, otherwise noted) parameter symbol test condition min typical max units reverse current i r v r = 40 v 10 a capacitance (note 2) c t f = 1 mhz, v r = 0 v 0.48 0.60 pf forward voltage v f i f = 1 ma 0.57 0.62 0.67 v note 1: performance is guaranteed only under the conditions listed in this table. note 2: total capacitance, c t , includes junction capacitance (c j ) and package capacitance (c p ).
data sheet ? sms3925 series schottky diodes skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@ skyworksinc.com ? www.skyworksinc.com 200132k ? skyworks proprietary information ? products and product in formation are subject to cha nge without notice ? apr il 8, 2015 3 table 4. spice model parameters parameter units SMS3925-040LF i s a 1.8e-09 r s 5.4 n C 1.7 tt sec 8e-11 c jo pf 0.36 m C 0.24 e g ev 0.69 xti C 2 f c C 0.5 b v v 58 i bv a 1e-05 v j v 0.8 typical performance characteristics reverse voltage (v) capacitance (pf) 0 0.1 0.2 0.3 0.4 0.5 0.6 0 5 10 15 figure 1. total capacitance vs reverse voltage
data sheet ? sms3925 series schottky diodes skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@ skyworksinc.com ? www.skyworksinc.com 4 april 8, 2015 ? skyworks prop rietary information ? products and product information are subj ect to change without notice ? 200132k notes: 1. all measurements are in millimeters. 2. dimensions and tolerances according to asme y14.5m-1994. 3. these packages are used principally for discrete devices. 4. this dimension includes stand-off height and package body thickness, but does not include attached features, e.g., external heatsink or chip capacitors. an integral heatslug is not considered an attached feature. 5. this dimension is primarily terminal plating, but does not include small metal protrusion. 0.05 2x 0.05 0.4 6 + 0.04 C0.0 6 0.05/0.00 terminal 1 0.03 c 2x 0.25 0.05 2x pin 1 indicator 0. 6 00 a 0. 6 50 c b 1.000 s eating plane 4 2x 0.50 0.05 0.10 m a b 0.10 m a b 0.325 5 y1410 figure 2. sod-882 package dimensions s1 9 22 a b 2.00 0.05 ? 1.55 0.05 (d0) ? 0.40 0.05 (d1) c athode indicator 0.20 1.15 0.05 (bo) 0.70 0.05 (a0) 4.00 0.10 a b b a 2.00 0.05 0.47 0.05 (ko) 1.75 0.10 3.50 0.05 8.00 0.1 notes: 1. carrier tape: black conductive polycarbonate. 2. cover tape: transparent conductive material. 3. cover tape size: 5.4 mm width. 4. esd surface resistivity is 1 x 10 4 ~ 1 x 10 8 ohms/square. 5. all dimensions are in millimeters. figure 3. sod-882 tape and reel dimensions
data sheet ? sms3925 series schottky diodes skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@ skyworksinc.com ? www.skyworksinc.com 200132k ? skyworks proprietary information ? products and product in formation are subject to cha nge without notice ? apr il 8, 2015 5 copyright ? 2002-2007, 2009-2012, 2014-2015 skyworks solutions, inc. all rights reserved. information in this document is provided in connection with skyw orks solutions, inc. (skyworks) products or services. these m aterials, including the information co ntained herein, are provided by skyworks as a service to its customers and may be used for info rmational purposes only by the cu stomer. skyworks assumes no res ponsibility for errors or omissions in these materials or the information contained herein. skyworks may change its documentat ion, products, services, specific ations or product descriptions at any time, without notice. skyworks makes no commitment to update the materials or information and shall have no responsi bility whatsoever for conflicts, incompatibilities, or other diff iculties arising from any future changes. no license, whether express, implied, by es toppel or otherwise, is granted to any in tellectual property rights by this document . skyworks assumes no liability for any materials, products or information provided hereunder, including the sale, distribution, re production or use of skyworks products, information or mate rials, except as may be provided in skyworks terms and conditions of sale. the materials, products and information are pr ovided as is without warranty of any ki nd, whether express, implied, statutory, or otherwise, includin g fitness for a particular purpose or use, merchantability, performance, quality or non-infrin g ement of any intellectual property ri g ht; all such warranties are hereby expressly disclaimed. skyworks does not warrant the accuracy or completeness of the information, text, g raphics or other items contained within these ma terials. skyworks shall not be liable for any dama g es, includin g but not limited to any special, indirect, incidental, statutory, or consequential dama g es, includin g without limitation, lost revenues or lost profits that may result from the use of the materials or information, wheth er or not the recipient of mat erials has been advised of the possibility of such dama g e. skyworks products are no t intended for use in medical, lifesaving or life-su staining applications, or other equipment in which the failure of the skyworks products could lead to personal injury, death, physical or environmental damage. skyw orks customers using or selli ng skyworks products for use in such applications do so at their own risk and agree to fully indemnify skyworks for any damages resulting from such improper use or sale. customers are responsible for their products and applications us ing skyworks products , which may deviate from published specifi cations as a result of design de fects, errors, or operation of products outside of published pa rameters or design specifications. customers sh ould include design and operating safeguards to minimize these and other risks. skyworks assumes no liability for applications assistance, customer product de sign, or damage to any equipment resulting from the use of skyw orks products outsid e of stated published specifications or parameters. skyworks and the skyworks symbol are trademarks or registered trad emarks of skyworks solutions, inc., in the united states and other countries. third-party brands and names are for identification purposes only, and are the pr operty of their respective owners. additi onal information, including relevant terms and conditions, posted at www.skyw orksinc.com, are incorporated by reference.
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