HV31 WELWYN [Welwyn Components Limited], HV31 Datasheet

HV31

Manufacturer Part Number

HV31

Description

High Voltage Thick film Resistors

Manufacturer

WELWYN [Welwyn Components Limited]

Datasheet

1.HV31.pdf (2 pages)

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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.

High Voltage

Thick film Resistors

HV Series

•

Electrical Data

Physical Data

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.

Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com

Power rating at 70°C

Resistance range

Limiting element voltage

TCR (20°C to 70°C)

Resistance tolerance

Values

Thermal impedance

Ambient temperature range

Dimensions (mm) & Weight (g)

Type

HV31

HV32

HV33

HV34

HV35

Resistance up to 250M

Low temperature coefficient of resistance

Working voltage up to 20kV

Sets of resistors with matched characteristics

L max

10.0

19.0

15.5

38.0

50.8

D max

3.5

3.6

5.3

3.6

f min

30.0

· Bedlington, Northumberland NE22 7AA, UK

d nom

0.6

0.8

0.6

ppm/°C

°C/watt

mounting

watts

ohms

centres

volts

12.7

25.4

18.4

44.4

57.2

PCB

°C

1K to 50M

Radius

HV31

Bend

Min.

0.5

0.6

1.2

0.6

Wt. nom

Solvent Resistance

The body protection and marking are resistant to all normal

industrial cleaning solvents suitable for printed circuits.

Terminations

Material

Strength

Solderability The terminations meet the requirements of

1K to 100M 1K to 150M 1K to 200M 1K to 250M

1.25

0.5

0.6

1.2

1.1

HV32

0.75

E24 preferred

-55 to 155

50, 100

1, 2, 5

HV33

Solder coated copper wire.

The terminations meet the requirements of

IEC 68.2.21.

IEC 115.1, Clause 4.17.3.2

1.0

HV34

Welwyn Components

1.25

14K

HV35

10K

20K

1.5

TT electronics plc

Any value to

special order

A subsidiary of

Issue B · 03.02

Notes

In air

In oil

195

Related parts for HV31

HV31 Summary of contents

Page 1

... 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 HV31 HV32 HV33 watts ...

Page 2

High Voltage Thick film Resistors HV Series Performance Data Load at rated power: 1000 hours at 70°C Shelf life: 12 months at room temperature Derating from rated power at 70°C Noise (in a decade of frequency) Voltage coefficient of resistance ...

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