_-_201602001.png)
Series KWH V I T R O H M
Revision 201602
VITROHM PORTUGUESA, Lda. – Est. Nacional 249-4, Trajouce – 2765-653 S. Domingos de Rana – PORTUGAL
File Nr: 2635.18.450.001.03
Tel:+ 351 214 457 700 - Fax:+ 351 214 457 755 – Germany Sales Tel:+ 49 4121 870 103 - e-mail:
vitrohm.support@yageo.com
–
www.vitrohm.com
1
Power Wirewound Resistors
Ceramic case, axial
ELECTRICAL SPECIFICATIONS
Type
KWH01
KWH02
KWH03
KWH05
KWH07
KWH10
KWH15
KWH20
KWH25
KWH30
KWH40
Nominal Power rating
P
25
[W]
1,6 3,1 3,4 5,7 7,9 11,3
15,0 20,0 25,0
30,0
40,0
P
40
1,4 2,7
3,0
5,0
7,0
10,0
13,3 17,7 22,1 26,5 35,4
P
70
1,0 2,0
2,2 3,7 5,2 7,4 9,8 13,1 16,3 19,6 26,2
Resistance range
[
Ω
]
Min
0R1 0R03
0R015 0R015 0R05 0R08
0R1
0R15
Max
27R 36R 68R 130R 330R 510R 680R
1K
E-Series
E24
Tolerances
± [%]
5
[J]
Temperature coefficient
[10
-6
*K
-1
]
300
Temperature range
[ºC]
-55 … +155
Thermal resistance
[KW
-1
] 85 42 39 23 16 11 9 6 5 4 3
Insulation voltage (1min.)
IEC115-1 clause 2.2.17
[V] 500
700
1000
2000
Max. working voltage
[V]
RMS
200 250
350
500
1000
Insulation resistance
IEC115-1 clause 4.6
[M
Ω
] >1,000
PERFORMANCE DATA
Derating linear
[ºC]
70…155 (0W)
Periodic-pulse Overload
IEC115-1 clause 4.39
± [%]
2,0
Endurance
IEC60115-1 clause 4.25
(P
70
, @ 70[°C], 1000[h])
± [%]
5,0
Damp heat, steady state
IEC115-1clause 4.24
(40[°C], 93[% r.h.], 56[d])
± [%]
5,0
Short Time Overload
IEC60115-1 clause 4.13
(U=2,5*
,
5[s]
± [%]
2,0
Temperature Cycling
IEC60115-1 clause 4.19
(-55 /+155[°C] , 30min. , 5 cycles
)
± [%]
2,0
Robustness of Terminations
IEC115-1 clause 4.16
(
≥
2,5[Kg], 10[s])
[N]
24,5
Resistance to soldering heat
IEC115-1 clause 4.18
(260
±3
[°C], 10
±1
[s] 2.5~3.5[mm])
± [%]
1,0
Solderability
IEC 60068-2-20
(235
±5
[ºC], 3
±0.5
[s])
[s]
Solder bath method (min. 90[%] coverage)
Solvent Resistance of Marking
IEC60115-1 clause 4.30
(5
±0,5
[min]
with ultrasonic)
No deterioration of coatings and markings
Marking
IEC60062
Printed in clear