Datasheet > 3810

3810

更新时间： 2024-11-01 02:58:51

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描述
Ultra-High Value Precision Resistors

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3810 数据手册

Ultra-High Value

Precision Resistors

Welwyn Components

3810 Series

• Resistance range up to 100 T ohms

(10 ohms)

Designed for low current (pica ampere level)

measurements

•

Low voltage coefficient

•

Hermetically sealed

•

Leakage current minimised by hermetic

sealing and guard ring

•

Electrical Data

3810

3811

3812

1T to 100T

1000

Resistance range

ohms

volts

100M to 1T

500

100M to 1T

1000

Limiting element voltage

TCR (20°C to 70°C)

Resistance tolerance

Values

ppm/°C

-500 to -3500

1, 2, 5, 10

E24 preferred

-40 to 100

10, 20

1T to10T; 2, 5,10 >10T; 5,10

Ambient temperature range

°C

Physical Data

Dimensions (mm) & Weight (g)

PCB

d nom mounting

Centres Radius

Min.

Type

L max

D max

f min

Bend Wt. nom

3810

3811

3812

25.0

42.9

48.0

0.6

29.2

47.1

52.2

0.6

1.5

2.2

2.5

Construction

Marking

The Cermetox^®resistive film is fired onto high quality ceramic

substrate; brass end caps are forced fitted to the substrate

which is then adjusted to value with a helical cut in the film;

the leads are mechanically locked into the end caps and the

assembly sealed into the glass envelope. All close tolerance

units utilise two resistors connected in series within the glass

envelope. The guard band is described, with application

notes, in a Product Information sheet, available on request.

The serial number, resistance value and tolerance code are legend

marked. The resistance value marking conforms to IEC 62.

Solvent Resistance

The glass envelope is coated with silicone and should not be

subjected to solvents or their vapours. (See Application

Notes.)

Terminations

Material

Solder-coated Dumet 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

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.

A subsidiary of

TT electronics plc

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

Issue D · 03.06

203

中文翻译

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