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WH10

Description
Aluminium Housed Wirewound Resistors
File Size854KB,4 Pages
ManufacturerWelwyn (TT Electronics plc)
Websitehttp://www.welwyn-tt.com/index.asp
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WH10 Overview

Aluminium Housed Wirewound Resistors

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

WH10 Related Products

WH10 WH50 WH5 WH25
Description Aluminium Housed Wirewound Resistors Aluminium Housed Wirewound Resistors Aluminium Housed Wirewound Resistors Aluminium Housed Wirewound Resistors
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