6.2 & 6.55 volt temperature compensated zener reference diodes m i cro semi scottsdale division 8700 e. thom as rd. po bo x 139 0, scottsdale, az 85252 usa, ( 4 8 0 ) 941- 6300, fax: (480) 947-1 503 page 1 cop y right ? 200 3 10-27- 2003 re v c w w w . mi c r o s e m i . c o m scottsd a l e division 1n821 thru 1n829a- 1 do-7 1 n 8 2 1 ? 1 n 8 2 9 a - 1 descripti on appeara n c e the pop ular 1n821 th ru 1n829 se ri es of zero-tc refe re nce diode s provide s a selectio n of b o th 6.2 v a nd 6.55 v n o minal volta ges and temperature coeffici ents t o as lo w as 0.0005%/ o c for minimal voltage cha nge with temperature whe n o per ated at 7.5 m a . the s e gl ass axial - leade d do -7 referen c e dio des a r e al so available in jan, jantx, jantxv, and jans m ilitary qualifi c ations. micr osemi al so o ffers n u me ro us other zene r refe re nce diod e produ cts for a v a ri ety of other voltages up t o 200 v. import a n t : f o r the most cur r e n t data, consult mi c r os e m i ? s w e bsite: http:// www .microsemi.com features a p p l i c at ions / be ne fi ts ? jedec reg i ste r ed 1n 821 thr u 1n82 9 series ? internal meta ll urgic a l bo nds ? dou b le a n o de optio n w i th 1n 822 a nd 1 n 82 4 selecti on ? refere nce volt age se lecti on o f 6.2 v & 6.55 v + / -5% w i t h further tig h t toleranc e op tions at nomi n a l of 6.35 v ? 1n8 21, 82 3, 825, 827 and 8 2 9 also h a ve mil i tar y qua lificati on to mil-prf - 195 0 0 /159 u p to the jans level by adding jan, jan t x , jant x v , or jans prefi x es to part numbers as w e ll as the ?-1? s u ffix, e.g. jant x1n8 29- 1, etc. ? radi atio n har d ene d dev ices a v aila bl e b y c h a ngi ng ?1n? prefi x to ?rh?, e.g. rh8 27, rh 82 9, rh82 9 a, etc. also consult factor y for ? rh? data sh eet brochur e ? militar y surfac e mount equ iv a l ents also av ail abl e in do-213aa w i t h ur-1 suffi x a nd jan, jant x, or jant xv prefi x , e.g. jan t x1 n82 9 ur- 1 (se e separ ate data she e t) ? also ava ila bl e i n small e r a x ia l- lea ded do-3 5 packa ge (see sep a rate data she e t) ? provid es mini mal volta ge ch ang es over a b r oad temperatur e ra nge ? f o r instrument ation a nd oth e r circuit desi gns requ irin g a stable vo ltag e referenc e ? maximum tem peratur e coeffi cient sel e ction s avail a b l e from 0.01%/oc to 0. 000 5%/oc ? t i ght voltage toler ances w i t h nomi nal refer e nce voltag es of 6.3 5 v avail abl e b y a ddi ng tol e ra nce 1%, 2%, 3%, e t c. after the par t number for ide n tificatio n e. g. 1n82 7-2 % , 1n8 29a -1%, 1 n 82 9- 1-1%, etc. ? f l exibl e a x i a l-l ead mo unti ng termina ls ? nons ensitiv e to esd per mil - st d-750 method 102 0 max i mu m rat ing s mechan ic al an d pa ckagin g ? operatin g & storag et empera t ure: -65 o c to +175 o c ? dc po w e r d i ss ipati on: 500 m w @ t l = 25 o c and maximum curr ent i zm of 70 ma. not e : f o r optimum voltag e-temper ature stabi lit y , i z = 7.5 ma (less than 50 mw in dissip a ted po w e r) ? sold er temper atures: 260 o c for 10 s (max i mum) ? case: hermetically sealed glass case w i th do-7 (d o-2 0 4 aa) pa cka ge ? t e rminals: t i n-lead pl ated and sol der abl e per mil-st d-750, method 2 0 2 6 ? marking: part number an d cathod e ba nd ( e xc ept dou ble ano de 1n8 22 a nd 1n 824) ? polarit y : r e ferenc e di ode to be oper ated w i th the ban de d en d positiv e w i th respect to the opp osite e nd ? t ape & reel optio n: standa rd per eia-296 (add ?t r? suffix to part number) ? w e igh t : 0.2 grams. ? see pack a g e d i mensi ons o n l a st page do-7 (do-204aa)
6.2 & 6.55 volt temperature compensated zener reference diodes scottsd a l e division 1n821 thru 1n829a- 1 do-7 w w w . mi c r o s e m i . c o m 1 n 8 2 1 ? 1 n 8 2 9 a - 1 *electric a l ch ara cteri s tic s @ 25 o c, u n less otherwise specified zener vo lt a g e (no t e 1 a nd 4 ) v z @ i zt zener test curren t i zt ma x i m u m zener imped a n ce (no t e 2) z zt @ i zt ma x i m u m reverse curren t i r @ 3 v vo lt a g e temper a t ure st a b ili t y ( ? v zt ma x ) -55 o c t o +100 o c (no t e 3 a nd 4 ) effective temper a t ure coef ficien t vz jedec type number (no t e 1, 5 & 6) v o l t s m a o h m s a m v % / o c 1n821 1n821a 1n822? 1n823 5.9 ? 6.5 5.9 ? 6.5 5.9 ? 6.5 5.9 ? 6.5 7.5 7.5 7.5 7.5 15 10 15 15 2.0 2.0 2.0 2.0 96 96 96 48 0.01 0.01 0.01 0.005 1n823a 1n824? 1n825 1n825a 5.9 ? 6.5 5.9 ? 6.5 5.9 ? 6.5 5.9 ? 6.5 7.5 7.5 7.5 7.5 10 15 15 10 2.0 2.0 2.0 2.0 48 48 19 19 0.005 0.005 0.002 0.002 1n826 1n827 1n827a 1n828 6.2 ? 6.9 5.9 ? 6.5 5.9 ? 6.5 6.2 ? 6.9 7.5 7.5 7.5 7.5 15 15 10 15 2.0 2.0 2.0 2.0 20 9 9 10 0.002 0.001 0.001 0.001 1n829 1n829a 5.9 ? 6.5 5.9 ? 6.5 7.5 7.5 15 10 2.0 2.0 5 5 0.0005 0.0005 *j ede c regis t ered data. ?do uble ano de; electri c al spe c ific ation s apply unde r both bia s pol arities. notes : 1. add a ?-1 ? suffix f o r internal metall urgical bond. when orde ring dev ices w i th tighter t o ler ances than specified for the v z voltage nominal of 6.35 v, add a h y phened suffix to t he part num ber f o r desired tolera nce, e.g. 1n827 - 1 -2%, 1 n 829 -1-1 %, 1n82 9a-1 %, 1n829a-1 -1% , et c. 2. zener imped ance measured b y s uperimposi ng 0.7 5 ma ac rms on 7.5 ma dc @ 25 o c. 3. the ma ximum allowable change o b served over the entire tempe r atu r e rang e i.e., the diode voltage w ill not exceed t he specifie d mv change at discrete temperatu r e be tw e en the establi s hed limits. 4. voltage measure m ents to be perf o rmed 15 secon d s after application of dc current. 5. 1n821, 1n 823, 1 n 825, 1n8 27, an d 1n829 also ha ve qualification t o mil-pr f-195 0 0 /159 b y adding t he jan, jant x , jan t x v , or jans prefi x to part numb e rs a s w e ll as the ?- 1? suffix; e.g. jant x1n8 27- 1, jant xv1n82 9-1, etc. 6. designate radiat ion hardene d de vices w i th ?rh? p r efix instead of ?1 n?, e.g. r h 829a instead of 1n829 a. graphs change in tempe r ature coefficient (%/ o c) change in tempe r ature coefficient (mv/ o c) figure 1 typical change of te mperature coeffici ent the curve shown in figure 1 is typical of the diode series and greatly sim p lifies the estim a tion of the te m p e r atur e coefficient (tc ) when t he di ode is operated at currents othe r than 7.5 m a. exam ple: a di ode in this series is operated at a current of 7.5m a and has s pecified tem p er ature co efficient (tc ) lim its of +/-0.005% / o c. t o obtain the typical temperat ure coefficient lim its for this sam e diode oper at ed at a curr ent of 6.0m a, the new tc li m i ts (% / o c) can be estimated using the gr aph in figu re 1. at a test current of 6.0 m a the cha nge in te m p e r at ure coefficient (tc ) is approximately ?0.0006%. o c. the algeb raic sum of +/ - 0.005% o c and ? 0 .0006%/ o c give s the estim a ted lim its of +0.0044%/ o c an d -0.0056 %/ o c. with cha nge in operating current. m i cro semi scottsdale division 8700 e. thom as rd. po bo x 139 0, scottsdale, az 85252 usa, ( 4 8 0 ) 941- 6300, fax: (480) 947-1 503 page 2 cop y right ? 200 3 10-27- 2003 re v c
6.2 & 6.55 volt temperature compensated zener reference diodes m i cro semi scottsdale division 8700 e. thom as rd. po bo x 139 0, scottsdale, az 85252 usa, ( 4 8 0 ) 941- 6300, fax: (480) 947-1 503 page 3 cop y right ? 200 3 10-27- 2003 re v c w w w . mi c r o s e m i . c o m scottsd a l e division 1n821 thru 1n829a- 1 do-7 1 n 8 2 1 ? 1 n 8 2 9 a - 1 i z ? ope r ating c u rrent (ma) ? v z ? ch ange in zener voltag e ( m v) this curve in figure 2 illustrates the change of diode voltage arising from t he eff e ct of im pedance. it is in effect an exploded view of the z e n e r ope rati ng region of th e i - v characteristic. in conjunction with figur e 1, t h is curve can be used to estim a te total voltage regu lation under conditions of both varying tem p er ature and current. figure 2 typical change of ze ner voltage with cha nge in operating cu rre nt dimen s io ns all dimensi o n s i n i n c h m m
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