WH300-470RJI Welwyn Components, WH300-470RJI Datasheet

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WH300-470RJI

Manufacturer Part Number
WH300-470RJI
Description
RESISTOR, 300W, 5%, 470R
Manufacturer
Welwyn Components
Series
WHr
Datasheet

Specifications of WH300-470RJI

Resistance
470ohm
Resistance Tolerance
± 5%
Power Rating
300W
Voltage Rating
2.5kV
Temperature Coefficient
± 100ppm/°C
Resistor Element Material
Wirewound
Resistor Case Style
Axial Leaded
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Aluminium Housed
Wirewound Resistors
WH Series
Electrical Data
Power rating at 25 C
Resistance range
TCR (-55° to 200°C)
Resistance tolerance
Low value limits
Isolation voltage
* For load at maximum rating mount on aluminium heatsink 30.5 cm x 30.5 cm x 1.5 mm
CECC 40203-006 Requirements *
Power rating at 25 C
Resistance range
TCR (-55° to 200°C)
Resistance tolerance
Low value limits
Isolation voltage
* This table indicates the CECC specification requirements which are met or exceeded by the corresponding WH series products.
Limiting element voltage
Standard values
Thermal impedance
Ambient temperature range
Power rating at 25 C
Resistance range
TCR (-55° to 200°C)
Resistance tolerance
Low value limits
Isolation voltage
Limiting element voltage
Standard values
Thermal impedance
Ambient temperature range
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 test data and is considered accurate at time of print.
Welwyn Electronics Park, Bedlington, Northumberland, NE22 7AA, England. Tel: 01670 822181 Fax: 01670 829465 Web: www.welwyn-tt.com
Welwyn Components Limited
High power dissipation up to 300W
All welded construction
Suitable for severe environments
Designed for excellent thermal conductivity to heatsink
RoHS compliant
ppm/°C
ppm/°C
ppm/°C
°C/watt
°C/watt
ohms
ohms
ohms
ohms
ohms
ohms
watts
watts
watts
volts
volts
volts
volts
volts
°C
°C
%
%
%
0R01 to 10K
0R05 to 3K4
0R01 to 70K
WH5
16.0
1500
1000
150
AA
Standard 5(J) and 10(K). also available : 1(F) and 2(G)
10
1R at 1%
10
WH100
6360
1900
<10R: ±75
100
1
Typically ≥0R05: ±5%
1R at 1%
≥5R to ≤10R: ± 100
0R01 to 20K
0R05 to 15K
0R5 at 2%
WH10
1(F), 2(G), 5(J) and 10(K)
10.0
250
BA
≤1K0: ±100 >1K0: ±25
15
15
1500
1000
≥10R to <100R: ±50
E24 preferred range
E24 preferred range
1(F), 2(G), and 5(J)
0R5 at 2%
0R01 to 50K
-55 to 200
-55 to 200
WH200
7070
1900
200
0.7
0R05 at 5%
0R01 to 44K
0R05 to 33K
WH25
500
CA
6.0
25
25
3000
2000
≤0R047: ±10%
>10R: ±50
0R05 at 5%
≥100R: ±25
0R01 at 10%
0R01 to 68K
0R015 to 120K
0R05 to 82K
WH300
7070
2500
300
WH50
0.6
1250
50 *
DA
3.5
3000
40
2000
Other values to order
On standard heatsink
On standard heatsink
On standard heatsink
On standard heatsink
On standard heatsink
WH50 0R015 at 10%
Other values to order
DC or AC peak
DC or AC peak
DC or AC peak
DC or AC rms
DC or AC rms
Notes
Notes
Notes

Related parts for WH300-470RJI

WH300-470RJI Summary of contents

Page 1

... peak DA Notes 40 On standard heatsink 0R05 to 82K >10R: ±50 0R05 at 5% 2000 2000 peak 1250 rms Other values to order 3.5 On standard heatsink WH300 Notes 300 On standard heatsink 0R01 to 68K ≤0R047: ±10% 7070 peak 2500 rms Other values to order 0.6 On standard heatsink ...

Page 2

... WH200 72.5 184.4 41.8 WH300 * WH100: ±0.25, WH200 & WH300: ±0.45 WH5 - 50 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 aluminium housing to give optimum stability and reliability ...

Page 3

... Zero at 200°C, see derating graph 1 0.2 1 0.4 55/200/56 0.5 0.2 0.25 0.1 0.25 0.05 0.25 0.025 0 0 10G min See graphs 1 10 100 1000 Value (ohms) WH100 - 300 Maximum 2 N/A 2 0.25 WH100: 0.5 0 WH300 WH200 WH100 WH50 WH25 WH10 WH5 10000 100000 ...

Page 4

... (° WH200 and WH300 are supplied with a set of four M6 nuts and washers. The screw terminations can support a maximum tightening torque of 5Nm. Packaging WH5-100 resistors are packed in plastic bags and boxed. WH200 & 300 are individually boxed. Ordering Procedure Example: WH25 at 100 ohms with a 5% tolerance: ...

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