high voltage divider resistors hvd series physical data voltage ratngs up to 30kv non-inductve design rato tolerance down to 0.25% tcr tracking down to 25ppm/c vcr down to -0.15ppm/v custom design service available rohs compliant electrical data HVD08 hvd12 hvd15 hvd20 hvd30 power ratng at 70c wats 0.75 1.5 2.5 3.5 4.5 limitng element voltage in air dc or ac pk kv 7.5 10 15 20 30 resistance value ohms 10k C 1g 50k C 2g 100k C 2g 100k C 5g resistance tolerance % 1, 5 rato tolerance % 0.25, 0.5, 1 tcr (20c to 70c) ppm/c 50, 100 tracking tcr (20c to 70c) ppm/c 25, 50 standard values e24 preferred for (r1 + r2) and r2 ambient temperature range c -55 to +155 insulaton resistance at 500v ohms >10g dielectric strength of insulaton volts >1000 dimensions in mm, weight in g type l (0.5) h (0.5) t (max) p (0.5) p2 (0.5) ll lead length wt. nom HVD08 25.4 9.37 2.5 22.86 5.08 5.08 0.75 0.66 hvd12 38.1 13.6 2.5 35.56 7.62 1.32 hvd15 50.8 16.14 2.5 48.26 10.16 2.09 hvd20 76.2 16.14 2.5 73.66 10.16 3.08 hvd30 101.6 16.14 2.5 99.06 10.16 4.07 other resistance, tolerance and tcr values are available on request. constructon terminaton conductors and ruthenium oxide resistve material are print - ed in a non-inductve patern onto the surface of a 96% alumina sub - strate. a screen-printed protecton is then applied and terminals are then atached. terminatons solder coated phosphor bronze leadframe terminatons are solder dipped in snagcu and meet the following iec requirements: iec 68.2.21 C strength, iec 115-1, clause 4.17.3.2 C solderability marking type reference, tcr codes, resistance values, tolerance codes and date code are legend marked. the resistance value code conforms to iec 62. solvent resistance the body protecton and marking are resistant to all normal industrial clean- ing solvents suitable for printed circuits. . ma ke p ossibl e resistors all parts are pb-free and comply with eu directve 2011/65/eu (rohs2) 01.16 general note tt electronics reserves the right to make changes in product specifcation without notice or liability. all information is subject to tt electronics own data and is considered accurate at time of going to print. ? tt electronics plc www.ttelectronicsresistors.com
high voltage divider resistors hvd series applicaton notes due to the high voltage, which can appear between the terminatons and any adjacent metal part, resistors should be mounted at an adequate distance from other conductors. for some ultra-high voltage applicatons it is required to immerse the components in oil or sf6 gas or pot them in void-free silicone compound to reduce corona or surface tracking. the printed protecton is suitable for these applicatons. the divider consists of high value r 1 and low value r 2 . the voltage division rato of the divider is given by rato = r 2 : (r 1 + r 2 ) performance data maximum typical load at rated power: 1000 hours at 70c r% <100m: 0.25, 100m: 0.5 0.1 overload: 1.5 x rated power not exceeding lev for 5 seconds r% 0.25 0.1 moisture resistance: mil std. 202, method 106 r% 0.25 0.1 temperature rapid change: 5cycles -55 / 155c r% 0.25 0.1 type typical vcr (ppm/v) HVD08 -0.50 hvd12 -0.35 hvd15 -0.25 hvd20 -0.20 hvd30 -0.15 ordering procedure example: hvd15 for a voltage rato of 1:1000, with r1 = 99.9 megohms and r2 = 100 kilohms (total r 1 + r 2 = 100 megohms) at 50ppm/c absolute and 25ppm/c tracking tcr, 1% absolute and 0.5% rato tolerance. g e n e ra l n o te tt el ec t r oni c s r es er v es t h e r i g h t t o m ake c h an g es i n p r o d u c t s p ec i f i c a t i o n w i tho u t n o t i c e o r liab ili t y . a ll i n f o r m a t i o n i s s ubj ec t t o tt el ec t r o n i c s ? o w n d a t a a n d i s c o n s i d e r ed accura t e a t t i m e o f goi n g t o p r i n t . w w w . b i t ec h n o l ogi es . c o m w w w . i r c t t . c o m www . w el w y n - tt. c o m ? t t e l e c tr o ni c s p l c 8 . 1 3 pe r fo r man ce d a ta m axi m u m t y pical load a t ra t ed p o w e r: 1000 hour s a t 7 0 c ? r % 0 . 2 5 < 100m : 0 . 5 > 1 00m 0 . 1 o v e rl oad: 1 . 5 x r a t ed pow e r not e x c e edi ng l ev f o r 5 s e c ond s ? r % 0 . 2 5 0 . 1 m o i s t u re re s i s t anc e : m i l s t d . 2 02, m e t hod 106 ? r % 0 . 2 5 0 . 1 t e m pera t u r e ra p i d c h a nge : 5 cyc l e s - 55 / 155 c ? r % 0 . 2 5 0 . 1 t y p e t y pical vcr (ppm / v) h vd 0 8 - 0 . 5 0 h vd 1 2 - 0 . 3 5 h vd 1 5 - 0 . 2 5 h vd 2 0 - 0 . 2 0 h vd 3 0 - 0 . 1 5 a p plicat i on n ot e s d ue t o t he h i gh v o l t a g e , w h i c h c an app ear b e t w een t he t e rm i nat i o n s and any adj a c ent m e t a l part , re s i s t o rs s h o u l d be m o u n t ed a t a n adequ a t e d i s t a n c e f r o m o t her c ond u c t o rs . f o r s o m e u l t ra -h i g h v o l t a ge app lic a t i ons i t i s re qui r ed t o i m m e rs e t he c o m pon ent s i n o i l o r sf 6 g a s o r p o t t hem i n v o i d -f re e s i lic one c o m poun d t o redu c e c o ro na o r s u rf a c e t ra c k i n g . t he p r i n t e d p ro t e c t i o n i s s u i t a b l e f o r t h e s e appl i c a t i o n s . t he d i v i der c o n s i s t s o f h i gh v a l ue r 1 and l o w v a l ue r 2 . t he v o l t a g e d i v i s i o n ra t i o o f th e d i v i der i s g i v e n b y r a t i o = r 2 / (r 1 + r 2 ). o rde ri ng p ro cedure e x a m p l e : h vd 15 f o r a v o l t age ra t i o o f 1 : 100 0 , w i t h r 1 = 9 9 . 9 m e g ohm s a nd r 2 = 100 k i l o h m s (t o t a l r 1 + r 2 = 100 m e goh ms) a t 50pp m / c a b s o l u t e and 25ppm / c t ra cki ng t cr, 1% a b s o l u t e a n d 0 . 5 % ra t i o t o l e ra n c e . h 1 5 c d - 1 0 0 m / 1 0 0 k f d 1 2 3 4 5 6 1 2 3 4 5 6 t y p e si z e t cr (a b s olute a nd tr a cki ng) va lue (r 1 + r 2 ) va lue (r 2 ) tole r a n c e (a b s olute a nd r a t i o ) h = h vd 0 8 z c 100pp m a b s o l u t e a n d 5 0 p p m t ra c k i n g k = kilohms, m = megohms, g = gigohms j f 5 % a b s o l u t e and 1% ra t i o 1 2 z d 100pp m a b s o l u t e a n d 25pp m t ra c k i n g f d 1 % a b s o l u t e and 0 . 5 % ra t i o 1 5 c d 50pp m a b s o l u t e and 25pp m t ra c k i n g f c 1 % a b s o l u t e and 0 . 2 5 % ra t i o 2 0 3 0 s c h e m a t ic di a g r a m hig h vo l t a ge d i vi d e r r e si st o r s h v d ser i e s schematc diagram ma ke p ossibl e eneral ote pe pemp ? tt electronics plc p
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