Page 1
Series CR V I T R O H M
Precision Power Wirewound Resistors
,
ceramic carrier, coated, axial
Specifications
Type
Nominal Power rating P
Resistance range
Tolerances
Tem perature coefficient
Max. working voltage
Insulation voltage (1min.)
Insulation resistance
Der ating linear
P70
40
10
V
V
W
Ω
%
-6
1
RMS
RMS
Ω
ºC
*
CR
251-0
1,1 2,0 2,5 3,0 3,3 4,0 5,0 5,5 7,2
1,0 1,6 2,0 2,5 3,0 3,5 4,3 5,0 6,5
-
K
CR
252-0
CR
253-0
Rmin. …Rmax.: ±5, ±2, ±1; R≥ 1R: ±0,5
CR
254-0
CR
255-0
See Page 2
See Page 2
CR
256-0
max 75 V
not insulat ed
70…350 (0W)
CR
257-0
CR
258-0
CR
259-0
Climatic category
Tem perature range
Thermal resistance
Failure Rate
(Total, ϑ
Endurance (P
Damp heat, steady state
(40°C, 93% r.h., 56d)
Climatic sequence
(IEX 115-1/23)
Terminal strength
Terminal Tensile Strength
Resistance to soldering heat
(260°C, 3,5s)
Solderability
Marking
,
0
max, 60% cont. lev.)
70°C, 1000h)
70 ,
ºC
125
100
KW-1
-1
10-9 h
[∆ R/R] %
[∆ R/R] %
[∆ R/R] %
[∆ R/R] %
[∆ R/R] %
Pri nted in clear
N
40 50
s
85 65
appr. 100 depends on value
2,5 Flowtim e; solderglobule test, IEC 60068-2-20-T
55/200/56
-55 ~ 3 50
± 3,0 average
± 1,0
± 1,0
± 0,2
± 0,2 typ.
55
65
48
45
35
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:[email protected] – www.vitrohm.com
Revision 200906
Page 2
Series CR V I T R O H M
6
±1
L
d
D
Dimensions in mm:
máx
∅
∅
6
±1
2
Lackhosen
Coating residues
C
±1
2
Type
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
Packaging:
Ordering example:
Type Tolerance Pack-Code R- value
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:[email protected] – www.vitrohm.com
500 +400 ppm/K 400 ± 50 ppm/K appr. +180 ppm/K 0 ± 20 ppm/K 0 ± 10 ppm/K
Type L max
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
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
CR259-0 1 T 10R
Temperature Coeficient ( -20ºC to 120ºC )
∅∅∅∅D * max ∅∅∅∅d
Revision 200906
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