data sh e e t leaded power resistors cr - precision wirewound, down to 0.25% tolerance u p to 7.2 w product specification - jun. 18, 2003 v.0
specification type cr251-0 cr253-0 cr254-0 cr255-0 cr256-0 cr257-0 cr258-0 cr259-0 power rating p 40 j 0 = 235c p 70 w 1,1 1,0 2,2 2,0 3,0 2,5 3,3 3,0 4,0 3,5 5,0 4,3 5,5 5,0 7,2 6,5 resistance range see page 2 tolerance % rmin. ... rmax..: 5, 2, 1; r > _ 1r0: 0,5 temperature coefficient 10 -6 * k -1 0 20 working voltage v rms insulation voltage (1min.) v rms max. 75v insulation resistance w not insulated derating linear c 70 ... 350 (0w) climatic category 55/200/56 temperature range c - 55 ... 350 thermal resistance kw -1 280 140 112 94 80 65 56 43 failure rate (total, j 0 max., 60% conf. lev.) 10 -9 * h -1 appr. 10, depends on value endurance (p 70 , 70c, 1000h, intm.) % 3,0 average damp heat, steady state (40c, 93% r. h., 56d) % 1,0 climatic sequence (iec 115-1/23) % 1,0 resistance to soldering heat (260c, 10s, 3mm) % 0,2 typ. solderability s 2,5 flowtime, solderglobule test, iec 60068-2-20 terminal strength % 0,2 terminal tensile strength n 50 marking printed in clear yageo europe gmbh ramskamp 70 d-25337 elmshorn german y t.: +49 4121 870-0 f.: +49 4121 870-297 file: cr_e_108 (07 ) 29.04.03 page 1 of 3 series cr precision power wirewound resistors axial, ceramic carr ier, coated p 7 0 r ? d r r ? ? d r r ? ? d r r ? ? d r r ? ? d r r ?
type resistance range temperature coefficient (-20 c to +120 c) min. max. cuni44 020 ppm/k nicr20alsi 010 ppm/k cr251-0 0 r1 82r > _ r50 < 62r > _ 62r < _ 82r cr253-0 0r1 360r > _ r10 < 160r > _ 160r < _ 360 r cr254-0 0r1 360r > _ r10 < 160r > _ 160r < _ 360 r cr255-0 0r1 470r > _ r10 < 220r > _ 200r < _ 470 r cr256-0 0r1 750r > _ r15 < 330r > _ 330r < _ 750 r cr257-0 0r2 1k1 > _ r20 < 430r > _ 430r < _ 1k1 cr258-0 0r2 1k3 > _ r20 < 430r > _ 430r < _ 1k3 cr259-0 0r3 2k > _ r30 < 800r > _ 800r < _ 2k0 dimensions in mm: type l max. ?d * max. ?d cr251-0 9,0 3,0 0,65 cr253-0 14,5 4,0 0,65 cr254-0 12,6 5,5 0,80 cr255-0 15,0 8,5 0,80 cr256-0 17,0 5,5 0,80 cr257-0 18,0 8,5 0,80 cr258-0 22,0 8,5 0,80 cr259-0 27,0 8,5 0,80 * r < _ 1r0 dmax. +1 yageo europe gmbh ramskamp 70 d-25337 elmshorn german y t.: +49 4121 870-0 f.: +49 4121 870-297 file: cr_e_108 (07 ) 29.04.03 page 2 of 3 series cr precision power wirewound resistors axial, ceramic carr ier, coated
packaging: type packaging pieces pack.-code cr251-0 taped 1000 t cr253-0 taped 1000 t cr254-0 taped 1000 t cr255-0 taped 500 t cr256-0 taped 1000 t cr257-0 taped 500 t cr258-0 taped 500 t cr259-0 taped 500 t ordering example: cr 259-0 1 t 10r type tolerance pack.-code r-value yageo europe gmbh ramskamp 70 d-25337 elmshorn german y t.: +49 4121 870-0 f.: +49 4121 870-297 file: cr_e_108 (07 ) 29.04.03 page 3 of 3 series cr precision power wirewound resistors axial, ceramic carr ier, coated
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