Series CR V I T R O H M
Precision Power Wirewound Resistors,
ceramic carrier, coated, axial
Specifications
CR CR CR CR CR CR CR CR CR
Type
251-0 252-0 253-0 254-0 255-0 256-0 257-0 258-0 259-0
Nominal Power rating P 1,1 2,0 2,5 3,0 3,3 4,0 5,0 5,5 7,2
40
W
P 1,0 1,6 2,0 2,5 3,0 3,5 4,3 5,0 6,5
70
Resistance range See Page 2
Tolerances % Rmin. Rmax.: 5, 2, 1; R 1R: 0,5
-6 -
Temperature coefficient 10 K See Page 2
*
1
Max. working voltage
VRMS
Insulation voltage (1min.) max 75 V
V
RMS
Insulation resistance not insulated
Derating linear C 70350 (0W)
Climatic category 55/200/56
Temperature range C -55 ~ 350
-1
125 100 85 65 55 65 48 45 35
Thermal resistance KW
-9 -1
10 h
Failure Rate appr. 100 depends on value
(Total, , max, 60% cont. lev.)
0
3,0 average
Endurance (P 70C, 1000h) [R/R] %
70 ,
1,0
Damp heat, steady state [R/R] %
(40C, 93% r.h., 56d)
Climatic sequence [R/R] %
1,0
(IEX 115-1/23)
Terminal strength [R/R] % 0,2
Terminal Tensile Strength N 40 50
Resistance to soldering heat
[R/R] % 0,2 typ.
(260C, 3,5s)
Solderability s 2,5 Flowtime; solderglobule test, IEC 60068-2-20-T
Marking 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 V I T R O H M
Dimensions in mm:
L mx
Lackhosen 2
2
Coating residues
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
CR251-0 9,0 3,0 0,65
CR252-0 9,7 4,0 0,80
CR253-0 14,5 4,5 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
Packaging:
Type Packaging Pieces Pack.-code C s
CR251-0 taped 1000 T 65 5
CR252-0 taped 1000 T 65 5
CR253-0 taped 1000 T 85 10
CR254-0 taped 1000 T 85 10
CR255-0 taped 500 T 85 10
CR256-0 taped 1000 T 85 10
CR257-0 taped 500 T 85 10
CR258-0 taped 500 T 85 10
CR259-0 taped 500 T 85 10
Ordering example: CR259-0 1 T 10R
Type Tolerance Pack-Code 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
d
D