Series CR VITROHM Precision Power Wirewound Resistors, ceramic carrier, coated, axial Specifications Type Nominal Power rating P40 P70 W CR 251-0 CR 252-0 CR 253-0 CR 254-0 CR 255-0 CR 256-0 CR 257-0 CR 258-0 CR 259-0 1,1 1,0 2,0 1,6 2,5 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 45 35 Resistance range Tolerances Temperature coefficient See Page 2 % Rmin. ...Rmax.: 5, 2, 1; R 1R: 0,5 10 -6 * K - See Page 2 1 Max. working voltage V RMS Insulation voltage (1min.) V RMS max 75 V Insulation resistance not insulated Derating linear C 70...350 (0W) Climatic category 55/200/56 Temperature range C Thermal resistance KW -1 Failure Rate (Total, 0 -55 ~ 350 125 10 -9 h-1 100 85 65 55 65 48 appr. 100 depends on value , max, 60% cont. lev.) 3,0 average Endurance (P 70 , 70C, 1000h) [R/R] % Damp heat, steady state (40C, 93% r.h., 56d) [R/R] % Climatic sequence (IEX 115-1/23) [R/R] % 1,0 Terminal strength [R/R] % 0,2 1,0 Terminal Tensile Strength N Resistance to soldering heat (260C, 3,5s) [R/R] % 0,2 typ. s 2,5 Flowtime; solderglobule test, IEC 60068-2-20-T Solderability Marking 40 50 Printed in clear Revision 200906 VITROHM PORTUGUESA, Lda. - Est. Nacional 249-4, Trajouce - 2765-653 S. Domingos de Rana - PORTUGAL Tel:+ 351 214 457 700 - Fax:351 214 457 755 - Germany Sales Tel:+ 0049 4121 870 103 - e-mail:vitrohm.support@yageo.com - www.vitrohm.com Series CR VITROHM Dimensions in mm: D L max d 2 Lackhosen Coating residues 2 6 1 6 1 C 1 Temperature Coeficient ( -20C to 120C ) Type 500 +400 ppm/K 400 50 ppm/K appr. +180 ppm/K 0 20 ppm/K 0 10 ppm/K 251-0 ------ ------ 0R01 0R024 0R027 0R091 0R1 15R 16R 220R 252-0 0R022 0R033 0R036 0R062 0R068 0R091 0R1 160R 180R 470R 253-0 0R01 0R02 0R022 0R047 0R051 0R091 0R1 47R 51R 750R 254-0 0R01 0R027 0R03 0R075 0R082 0R091 0R1 47R 51R 750R 255-0 0R015 0R024 0R027 0R062 0R068 0R091 0R1 68R 75R 1K0 256-0 0R02 0R03 0R033 0R062 0R068 0R091 0R1 130R 150R 1K5 257-0 0R027 0R047 0R051 0R082 0R091 0R13 0R15 150R 160R 2K2 258-0 0R033 0R062 0R068 0R13 0R15 0R16 0R18 160R 180R 2K7 259-0 0R047 0R075 0R082 0R15 0R16 0R24 0R27 180R 200R 3K9 Type L max D * max d 9,0 9,7 14,5 12,6 15,0 17,0 18,0 22,0 27,0 3,0 4,0 4,5 5,5 8,5 5,5 8,5 8,5 8,5 0,65 0,80 0,65 0,80 0,80 0,80 0,80 0,80 0,80 CR251-0 CR252-0 CR253-0 CR254-0 CR255-0 CR256-0 CR257-0 CR258-0 CR259-0 *R 1R0 Dmax. +1 Packaging: Type CR251-0 CR252-0 CR253-0 CR254-0 CR255-0 CR256-0 CR257-0 CR258-0 CR259-0 Ordering example: CR259-0 Type Packaging Pieces Pack.-code C s taped taped taped taped taped taped taped taped taped 1000 1000 1000 1000 500 1000 500 500 500 T T T T T T T T T 65 65 85 85 85 85 85 85 85 5 5 10 10 10 10 10 10 10 1 Tolerance T Pack-Code 10R R- value Revision 200906 VITROHM PORTUGUESA, Lda. - Est. Nacional 249-4, Trajouce - 2765-653 S. Domingos de Rana - PORTUGAL Tel:+ 351 214 457 700 - Fax:351 214 457 755 - Germany Sales Tel:+ 0049 4121 870 103 - e-mail:vitrohm.support@yageo.com - www.vitrohm.com