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HV31 Datasheet(PDF) 1 Page - Welwyn Components Limited

Part No. HV31
Description  High Voltage Thick film Resistors
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Maker  WELWYN [Welwyn Components Limited]
Homepage  http://www.welwyn-tt.com/
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HV31 Datasheet(HTML) 1 Page - Welwyn Components Limited

   
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High Voltage
Thick film Resistors
HV Series
Resistance up to 250M
Low temperature coefficient of resistance
Working voltage up to 20kV
Sets of resistors with matched characteristics
HV31
HV32
HV33
HV34
HV35
Notes
Power rating at 70°C
watts
0.5
0.75
1.0
1.25
1.5
Resistance range
ohms
1K to 50M
1K to 100M 1K to 150M 1K to 200M 1K to 250M
Limiting element voltage
volts
1K
2K
4K
7K
10K
In air
2K
4K
8K
14K
20K
In oil
TCR (20°C to 70°C)
ppm/°C
50, 100
Resistance tolerance
%
1, 2, 5
Values
E24 preferred
Any value to
special order
Thermal impedance
°C/watt
75
70
60
65
60
Ambient temperature range
°C
-55 to 155
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.
© Welwyn Components Limited · Bedlington, Northumberland NE22 7AA, UK
Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com
Electrical Data
Issue B · 03.02
A subsidiary of
TT electronics plc
Welwyn Components
195
Construction
A ruthenium oxide based resistive film is fired onto a high
quality ceramic former. Brass caps are force fitted to the
HV32, 34 and 35 rods and plated steel caps to the 31 and 33
sizes. The resistor is adjusted to value by a helical cut in the
film, and the body is protected with a silicone coating.
Marking
Type reference, resistance value, tolerance and date code are
legend marked. The resistance values conform to IEC 62.
Solvent Resistance
The body protection and marking are resistant to all normal
industrial cleaning solvents suitable for printed circuits.
Terminations
Material
Solder coated copper 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
Dimensions (mm) & Weight (g)
PCB
Min.
mounting
Bend
Type
L max
D max
f min
d nom
centres
Radius
Wt. nom
HV31
10.0
3.5
30.0
0.6
12.7
0.6
0.5
HV32
19.0
3.6
30.0
0.6
25.4
0.6
0.6
HV33
15.5
5.3
30.0
0.8
18.4
1.2
1.2
HV34
38.0
3.6
30.0
0.6
44.4
0.6
1.1
HV35
50.8
3.6
30.0
0.6
57.2
0.6
1.25
Physical Data
L
D
f
d


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