?dimensions thick film ( for high voltage ) hv73 ?R??? flat chip resistors for high voltage ?construction ratings ?type designation example ??\coating colorblack ?applications ?????ac??? camera strobe, lcd back-light, ac adapters etc. ?y-?yy 1 s p u f d u j w f d p b u j o h ?y
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? ??y * o o f s f m f d u s p e f ?y??-??lv / j q m b u j o h ?y ?lv 4 o q m b u j o h ?y???? $ f s b n j d t v c t u s b u f - d d 8 u e ? ? ? ? ? ? ?reference standards iec 60115-8 jis c 5201-8 eiaj rc-2134c ?? rated ambient temperature : 70 ??? operating temperature range : ?55?155 Lfeatures ???? rk73 ?^??R ?R?? ?`?`???? ?rohs??O??? U?rohsm? superior to rk73 series in maximum working voltage. suitable for flow and reflow solderings. products meet eu-rohs requirements. eu-rohs regulation is not intended for pb-glass contained in electrode, resistor element and glass. ?R ???????R??R??? rated voltage power ratingresistance value or max. working voltage, whichever is lower. 1 ^??R???R??1 max. overload voltage is specified by d.c. voltage. 2 1.1m?10m?cold t.c.r.?20010 ?6 /k?2 cold t.c.r. of 1.1m?10m is 20010 ?6 /k. 3 ??H??3 please inquire to us before use. g?? flat chip resistors eu rohs h?|??eu-rohs|????????? ?`?????????appendix c?? contact us when you have control request for environmental hazardous material other than the substance specified by eu-rohs. for further information on taping, please refer to appendix c on the back pages. type inch size code dimensionsmm weightg 1000pcs l0.2 w c d. t0.1 1j 0603 1.6 0.80.1 0.30.1 0.30.1 0.45 2.14 2a 0805 2.0 1.250.1 0.40.2 0.3 0.2 ?0.1 .3 0.50 4.54 2b 1206 3.2 1.60.2 0.50.3 0.4 0.2 ?0.1 .3 0.6 9.14 2h 2010 5.0 2.50.2 24.3 3a 2512 6.3 3.10.2 37.1 ??d??????????{????_J oct. 2013 ?dC?C?C?v????p???C??????????? specifications given herein may be changed at any time without prior notice. please confirm technical specifications before you order and/or use. contact our sales representatives before you use our products for applications including automotives, medical equipment and aerospace equipment. malfunction or failure of the products in such applications may cause loss of human life or serious damage. www.koanet.co.jp hv73 2b t td 1004 f ?N product code power rating 1j:0.1w 2a:0.125w 2b:0.25w 2h:0.5w 3a:1w ?| terminal surface material tsn ? taping td: 4mm pitch punch paper te : 4mm pitch plastic embossed b k:bulk ?? nominal resistance d,f:4 digits g,j:3 digits ?S? resistance tolerance d:0.5% f:1% g:2% j :5% type power rating ???S t.c.r. 1 0 ?6 /k ? resistance range ??R max. working voltage ^??R 1 max. overload voltage d.c. ?`???? ? taping & q ty/reel pcs d:0.5% e24 ?e 9 6 f:1% e24 ?e 9 6 g:2% e24 j:5% e24 td te 1j 0.1w 100 2 10k?10m 10k?10m 10k?10m 350v 500v 5,000 ? 2a 0.125w 0.25w 3 100 100k?1m 100k?10m 100k?10m 100k?10m 400v 800v 5,000 ? 200 11m?51m 2b 0.25w 100 100k?1m 100k?10m 100k?10m 100k?10m 500v 1000v 5,000 ? 200 11m?51m 2h 0.5w 100 100k?1m 100k?10m 100k?10m 100k?10m 2000vd.c. 3000v ? 4,000 200 11m?51m 3a 1w 100 43k?1m 43k?10m 43k?10m 43k?10m 3000vd.c. 4000v ? 4,000 200 11m?20m 11m?20m 11m?51m
?performance ?Xpderating curve ??70??????Xp??? Xp?? for resistors operated at an ambient temperature of 70 or above, a powe r rating shall be derated in accordance with the above derating curve. 1 f s d f o u s b u f e q p x f s *?9 sy " n c j f o u u f n q f s b u v s f? k k ??
z? ????precautions for use ^??R???R???RH??`?R^??R????R?? ????????g????S`?`?????R?? ??????????k???2h/3a?????? ??k???????????R????????R??? ??k????????`??Y??? fr-4 ? ?????? ? 1j?2b?????k??2h/3a???k?A????? ????k?g?????g????????????? ????????????O?? max. overload voltage is specified by d.c. voltage. when using in a.c. voltage, the peek value of a.c. voltage shall not exceed the maximum overload voltage. the substrate of chip resistors is alumina. cracks may occur at the connection of solder (solder fillet portion) due to the difference of the coefficient of thermal expansion from a mounting board when heat stress like heat cycle, etc. are repeatedly given to them. care should be taken to the occurrence of the cracks when the change in ambient temperature or on/off of load is repeated, especially when large types of 2h/3a which have large thermal expansion and also self heating. by general temperature cycle test using glass- epoxy (fr-4) boards under the maximum/minimum temperatures of operating temperature range, the crack does not occur easily in the types of 1j?2b, but the crack tends to occur in the types of 2h/3a. the occurrence of the crack by heat stress may be influenced by the size of a pad, solder volume, heat radiation of mounting board etc., so please pay careful attention to designing when a big change in ambient temperature and conditions for use like on/off of load can be assumed. g?? flat chip resistors ??d??????????{????_J oct. 2013 ?dC?C?C?v????p???C??????????? specifications given herein may be changed at any time without prior notice. please confirm technical specifications before you order and/or use. contact our sales representatives before you use our products for applications including automotives, medical equipment and aerospace equipment. malfunction or failure of the products in such applications may cause loss of human life or serious damage. www.koanet.co.jp ?Y? test items ???performance requirements r 0 . 1 ?Y test methods ^limit ?typical ? resistance ?S? within specified tolerance 25 ???S t.c.r . ? within specified t.c.r. 25/?55 and 25/125 ^???rg overloadshort time 2 0.5 R d . c . 2. 55 ? rated voltaged.c. 2.5 for 5s ? resistance to soldering heat 1 0.5 2605, 10s1s ?? rapid change of temperature 0.510k?QrQ10m 1 11m?QrQ51m 0.310k?QrQ10m 0.511m?QrQ51m ? 5 5 3 0 m i n . / 1 2 5 3 0 m i n . 100 cycles ?? moisture resistance 2 0.75 402, 90%?95%rh, 1000h 1.5rg on/0.5rg off 1.5 h on/0.5 h off cycle 70?? endurance at 70 2 0.75 702, 1000h 1.5rg on/0.5rg off 1.5 h on/0.5 h off cycle high temperature exposure 2 0.3 155, 1000h
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