参数资料
型号: WH5-2R2JI
英文描述: WIDERSTAND LEISTUNG CHASSI 2R2 100V 10W
中文描述: WIDERSTAND给付沙西2R2 100V的10W的
文件页数: 1/3页
文件大小: 0K
代理商: WH5-2R2JI
Chassis Mounting
Wirewould Resistors
WH SERIES
High quality ceramic substrate
All welded construction
Anodised extruded aluminium case
High power dissipation for size
Suitable for severe environments
Designed for excellent thermal conductivity
to heatsink
Electrical Data
WH5
EH10
WH25
WH50
NOTES
Power rating at 25°C
watts
10
15
25
50*
Mounted on
standard heatsink
Resistance range
ohms
0.01 to 10k
0.01 to 20k
0.01 to 44k 0.015 to 120k
TCR (-55° to 200°C)
ppm/°C
<10
: ±75
≥ to <100 : ±50
≥100 : ±25
Resistance tolerance
%
1, 2, 5, 10
Low value limits
ohms
1 at 1%
0.5 at 2%
0.05 at 5%
0.01 at 10%
WH50 0.015 at 10%
APPROVED CECC 40203 - 006
AA
BA
CA
DA
Power rating at 25°C
watts
10
15
25
40
Mounted on
standard heatsink
Resistance range
ohms
0.05 to 3.4k
0.05 to 15k
0.05 to 33k
0.05 to 82k
TCR (-55° to 200°C)
ppm/°C
≥5≤ 10 ± 100
>10
±50
Resistance tolerance
%
1, 2, 5
Low value limits
ohms
1 at 1%
0.5 at 2%
0.05 at 5%
Limiting element voltage
volts
150
250
500
1250
Standard values
E24 preferred range
Other values
to special order
Thermal impedance
°C/watt
16.0
10.0
6.0
3.5
Mounted on
standard heatsink
Operating temperature range °C
-55 to 200
*For load at maximum rating mount on heatsink 30.5 cm x 30.5 cm x 1.5 mm
Welwyn Components Limited
Bedlington, Northumberland NE22 7AA, England Tel: 01670 822181 Fax: 01670 829465 Web: http://www.Welwyn-TT.co.uk
Issue A 07/99
General Note
Welwyn Components reserves the right to make changes in product specification without notice or liability.
All information is subject to Welwyn’s own data and is considered accurate at time of going to print.
CONSTRUCTION
Cap and lead assemblies are fitted to a high purity ceramic
substrate. The resistive element is wound onto the
substrate and welded to the caps. The wound rod is then
moulded and fitted into an aluminium housing to give
optimum stability and reliability.
TERMINATIONS
Material
Solder dipped, copper clad steel wire.
Strength
The terminations meet the requirements of
IEC 68.2.21
Solderability
The terminations meet the requirements of
IEC 115-1, Clause 4.17.3.2
MARKING
The resistors are legend marked with type reference,
resistance value and tolerance. Values are marked in
accordance with IEC 62.
SOLVENT RESISTANCE
Resistor and marking withstand all accepted industrial
cleaning fluids.
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