P r oduct Name Metal Gl aze (H i gh Vol tage) Res i s tor 2017 06 10 B / 2 9-1 Vers i on E n actmen t Date JUN 30, 2017 Page 1. Genera l 1.1 S cope R oHS T hi s speci fi cat i on i s avai l abl e for Met al Gl aze (H i gh Vol tage) Res i s tor manufact uredi t accords wi t h R oHS t est of E nvi ronment rel at ed subst ance requi rement 1.2 ( ) T ype desi gnat i on (exampl e) , T he t ype desi gnat i on shal l be i n t he fol l owi ng form and as speci fi ed. R I40 1/ 4 W 470K F T 52 T ype R at ed power F or m Re s is t anc e Nomi nal r esi st ance 1/ 4W P P T ype t ole ra nc e val ue 1/ 2W M M T ype J 5% E - 24 S er i es 1W M B M B T ype 2% G 2W F K1 F K1T ype F 1% E - 96 S er i es F K2 F K2 T ype F KK F KK T ype 1.3 R at ed power 70, -1 70 R at ed power i s maxi mum power whi ch can be cont i nuousl y l oaded at speci fi ed ambi ent t emperat ure 70,as T abl e-1 however when t he ambi ent t emperat ure exceeds 70,rat ed power shoul d be det ermi ned from t he derat i ng curve of F i g.1.(%) P r oduct Name Metal Gl aze (H i gh Vol tage) Res i s tor 2017 06 10 B / 2 9-2 Vers i on E n actmen t Date JUN 30, 2017 Page -1 T abl e-1 ( ) R at ed Di el ect r i c wi t hst andi ng M a x Worki ng M a x Ove r l oa d Re s is t anc e T ype power vol t age Volta ge Volt age Ra nge ( ) N/ A 1/ 4W 0.25W 500V 700V 100K ~ 39M 350V 1/ 2W 0.5W 700V 1000V 100K ~ 39M 500V 1W 1W 1000V 1400V 100K ~ 39M 500V 2W 2W 1000V 1400V 100K ~ 39M Fi gure 1 P ower derat i ng curve -5 5 7 0 1 2 0 1 0 0 8 0 6 0 4 0 2 0 0 -6 0 -4 0 -2 0 0 2 0 4 0 6 0 8 0 1 0 0 1 2 0 1 4 0 1 6 0 1 80 2 0 0 2 2 0 2 40 2 6 0 Am bi ent Tem perat ure( ) 155 1.4 R at ed vol t age () , The rat ed vol t age s hal l be t he D.C . or A.C .(R .M .S . at power freque ncy) vol t age whi ch corre s ponds t he rat ed power and t he val ue of whi ch i s cal cul a t ed from t he form ul a bel ow. E= ( P R ) W here E: R at ed vol t age( V) P : R at ed power( W ) R : Nom i nal res i s t ance ( ) Opera t i ng Tem perat ure R ange: -55 +155 R at ed l oad(%)