8700 e. thomas road scottsdale, az 85252 phone: ( 480 ) 941-6300 fax: ( 480 ) 947-1503 smaj4728a thru smaj4764a silicon 2 watt zener diodes do-214ac (smaj) features for surface mount applications (flat handling surface for accurate placement) 3.3 thru 100 volt voltage range high surge current rating higher voltages available electrically equivalent to jedec registered 1n4728a thru 1n4764a available on tape and reel. dimensions inches mm dim min max min max note a .078 .115 1.98 2.92 1 b .052 .058 1.32 1.47 c --- .005 --- .127 d --- .02 --- .51 e .030 .060 .76 1.52 f .055 .075 1.65 2.13 g .194 .216 4.93 5.48 h .160 .180 3.99 4.50 j .100 .110 2.57 2.79 note 1 : this maximum dimension is larger than the standard jedec call out. standard jedec is .105 inches or 2.66 mm. mechanical data package similar to jedec do-214ac (see dimension ?a? note) terminals solderable per mil-std-750, method 2026 polarity is indicated by cathode band. maximum temperature for soldering: 260 o c for 10 seconds. for surface mount applications with flame retardent epoxy meeting ul94v-0 maximum ratings @ 25 c unless otherwise specified maximum forward voltage v f 1.2v (note: 1) peak surge current i s see table 1 steady state power dissipation p (av) 2.0w (note: 2,3) operating and storage temperatures t j ,t stg -55 c to +150 c thermal resistance r q jl 25 o c/w notes: 1. forward current @ 200ma. 2. mounted on 4.0mm 2 copper pads to each terminal. 3. lead temperature at 100 c or less. derate linearly above 100 c to zero power at 150 c. data sheet#msc0284a.pdf date: 05/01/97 h j
electrical characteristics @ 25 c unless otherwise specified part number zener voltage (v z ) (note 4) test current (i zt ) maximum dynamic impedance (z zt @ i zt ) (note 2) maximum reverse current (i r @ v r ) test voltage (v r ) maximum regulator current (i zm ) t l = 100 o c maximum knee impedance (z zk @ i zk ) (note 2) test current (i zk ) maximum (surge) current (i s ) (note 3) volts ma ohms mm a volts ma ohms ma ma smaj4728a 3.3 76 10 100 1 552 400 1.0 1380 smaj4729a 3.6 69 10 100 1 504 400 1.0 1260 smaj4730a 3.9 64 9 50 1 468 400 1.0 1190 smaj4731a 4.3 58 9 10 1 434 400 1.0 1070 smaj4732a 4.7 53 8 10 1 386 500 1.0 970 smaj4733a 5.1 49 7 10 1 356 550 1.0 890 smaj4734a 5.6 45 5 10 2 324 600 1.0 810 smaj4735a 6.2 41 2 10 3 292 700 1.0 730 smaj4736a 6.8 37 3.5 10 4 266 700 1.0 660 smaj4737a 7.5 34 4.0 10 5 242 700 0.5 605 smaj4738a 8.2 31 4.5 10 6 220 700 0.5 550 smaj4739a 9.1 28 5.0 10 7 200 700 0.5 500 smaj4740a 10 25 7 10 7.6 182 700 0.25 454 smaj4741a 11 23 8 5 8.4 166 700 0.25 414 smaj4742a 12 21 9 5 9.1 152 700 0.25 380 smaj4743a 13 19 10 5 9.9 138 700 0.25 344 smaj4744a 15 17 14 5 11.4 132 700 0.25 304 smaj4745a 16 15.5 16 5 12.2 114 700 0.25 285 smaj4746a 18 14 20 5 13.7 100 750 0.25 250 smaj4747a 20 12.5 22 5 15.2 90 750 0.25 225 smaj4748a 22 11.5 23 5 16.7 82 720 0.25 205 smaj4749a 24 10.5 25 5 18.2 76 750 0.25 190 smaj4750a 27 9.5 35 5 20.6 68 750 0.25 170 smaj4751a 30 8.5 40 5 22.8 60 1000 0.25 150 smaj4752a 33 7.5 45 5 25.1 54 1000 0.25 135 smaj4753a 36 7.0 50 5 27.4 50 1000 0.25 125 smaj4754a 39 6.5 60 5 29.7 46 1000 0.25 115 smaj4755a 43 6.0 70 5 32.7 44 1500 0.25 110 smaj4756a 47 5.5 80 5 35.8 38 1500 0.25 95 smaj4757a 51 5.0 95 5 38.8 36 1500 0.25 90 smaj4758a 56 4.5 110 5 42.6 32 2000 0.25 80 smaj4759a 62 4.0 125 5 47.1 28 2000 0.25 70 smaj4760a 68 3.7 150 5 51.7 26 2000 0.25 65 smaj4761a 75 3.3 175 5 56.0 24 2000 0.25 60 smaj4762a 82 3.0 200 5 62.2 22 3000 0.25 55 smaj4763a 91 2.8 250 5 69.2 20 3000 0.25 50 smaj4764a 100 2.5 350 5 76.0 18 3000 0.25 45 smaj4728a thru smaj4764a note: 1. the type numbers shown have a 5% tolerance on nominal zener voltage. no suffix signifies a 10% tolerance, c signifies 2%, and d signifies 1% tolerance. 2. the zener impedance is derived from the 60 hz ac voltage, which results when an ac current having an rms value equal to 10% of the dc zener current (i zt or i zk ) is superimposed on i zt . zener impedance is measured at two points to insure a sharp knee on the breakdown curve and eliminate unstable units. 3. the reverse surge current is measured at 25 o c ambient using a ? square wave or equivalent sine wave pulse 1/120 second duration superimposed on i zt . 4. voltage at thermal equilibrium or 90 seconds after application of dc current.
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about contac keyword search: part number search: rohs / pb-free policy rohs / pb - free policy | rohs / pb - free contacts | msc colorado | msc ip | msc lawrence | msc lowell | msc scottsdale microsemi corporation ( ?msc? ) is committed to support those customers requiring rohs and/or pb-free (lead free) compliant components. the te rm pb-free (lead-free) is defined in jesd97 and applies to components in which the lead (pb) level in any of the raw materials and the end product msc ppg - switching msc ppg - modules msc ppg - rf microsemi corporation (msc) is committed to manage its business in an environmentally responsible manner and microsemi has rohs and pb-free initiatives to support those customers that require rohs compliant and/or pb-free products. most plastic encapsulated products will be trans itioned to a pb-free finish and also use mold compounds that are rohs compliant for a 260c reflow temperature. for additional information regarding pb-free or rohs compliant products, the customer should contact the microsemi division that provides that product. hermetic military products manufactured by microsemi are processed in accordance with requirements specified by mil- prf-19500, mil-prf-38534 a nd mil-prf-38535. these requirements do not allow termination finishes that are pb-free or rohs compliant. if rohs compliant hermetic products for equivalent commercial part numbers are required, the customer should contact the applicable microsemi division . in the case of plastic encapsulated and commercial hermetic packages, microsemi may offer tw o versions of a product where one version will be rohs compliant and the other will not be compliant. in those examples, the rohs compliant version will include an "e#" designator as a suffix to the part number indicating the pb-free 2nd level interconnect terminal finish category defined in jesd97. in these offerings, the most frequent terminal finish is pure tin and the suffix of the part number is "e3". http://www.microsemi.com/pbpolicy.asp go g f e d c b g f e d c g f e d c b g f e d c b g f e d c page 1 of 2 manufacture diodes, igbts, led driver, small signal & analog, rf power, scr, wl ... 30-nov-2010 mhtml:file://y:\cpr\11302010 _ 2\mssd\rohs _ com p .mht
is less than or equal to 0.1% by weight and also meets any pb-free requirements/definitions adopted by the rohs directive 2002/95/ec. the rohs term is an acronym for european directive, restriction of the use of certain hazar dous substances in electrical and electronic e quipment. this also means a component with pb-free termination finish compatible with pb-free soldering processes. the rohs compliant components may include pb in the internal high melting type solder connections or glass materials of th e component as defined in the exemptions of the rohs european directive. although the rohs directive requires the use of pb-f ree lead finish and solder processes, there has been a historical concern about the growth of tin whiskers when using these pb-free processes. the most common pb-free lead finish currently being used is 100% matte tin (sn) and several ic manufacturers have shown that this lead finish is much less prone to whisker formation than older bright tin finishes. microsemi will provide the relia bility and tin whisker growth data that has been taken on its products. however, tin whisker growth is dependent on the environment that is seen by the product. customers are encouraged to collect their own reliability data and perform a risk assessment based their individual requirements. for general information on tin whiskers please see the following sites; n asa website on tin whiskers: nasa n emi tin whisker activities nemi calce tin whisker working group calce important information disclaimer: msc represents and warrants that the information pr ovided herein is to the best of its knowledge and belief accurate as of the date that it was provided. msc bases such knowledge and belief on information provided by third parties, and msc makes no representation or warranty as to the accuracy of such third party information. msc has taken and will continue to take, reasonable steps to provide representative and accurate information to its customers, but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. certain msc suppliers consider ?material content? to be confidential information and thereby proprietary, whereby cas numbers for such materials may not be available for release to customers. msc shall not be liable for loss of use, revenue, profit, or for any special, incidental, or consequential damages arising out of, connected with, or resulting from, the information provided in such questionnaire, or otherwise; and in no event shall msc's direct liability arising out of, connected with, or resulting from such information exceed the purchase price of the semiconductor component(s) referenced in such questionnaire th at msc sold to the customer during the three (3) months immediately prior to the date of such questionnaire. avionics | backlight inverters | l - band radar | led driver | ldmos & vdmos | mosfets, igbts, & diodes | pin diodes | power modules rf power & bipolar transistors | s - band radar | scr | thyristors | varacter diode | wlan power amplifier | zener diode | power over ethernet | ieee802.3af | poe ics copyright ? 2010 microsemi corporation. all rights reserved. the endwave logo is a registered trademark of endwave corporation . privacy policy | site map | terms & conditions ppg webex portal | ppg extranet login page 2 of 2 manufacture diodes, igbts, led driver, small signal & analog, rf power, scr, wl ... 30-nov-2010 mhtml:file://y:\cpr\11302010 _ 2\mssd\rohs _ com p .mht
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