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Document Number: 28732

170

Revision: 06-Dec-05

VR25

Vishay BCcomponents

High Ohmic/High Voltage Resistors

DIMENSIONS

MARKING

The nominal resistance and tolerance are marked on the

resistor using four or five colored bands in accordance with

IEC publication 60062 “Color codes for fixed resistors”.

Yellow and grey are used instead of gold and silver because

metal particles in the lacquer could affect high-voltage

properties.

OUTLINES

leads into holes of two identical gauge plates and moving

these plates parallel to each other until the resistor body is

clamped without deformation (“IEC publication 60294”).

∅ D

∅ d

Outline

DIMENSIONS - resistor type and relevant physical dimensions

TYPE

∅ D

MAX.

MAX.

MAX.

∅ d

VR25

2.5

6.5

7.5

0.58 ± 0.05

MASS PER 100 UNITS

TYPE

MASS

(g)

VR25 52 mm

21.2

VR25 26 mm

14.8

FUNCTIONAL PERFORMANCE

PRODUCT CHARACTERIZATION

Standard values of nominal resistance are taken from the E96/E24/E12 series for resistors with a tolerance of ± 1 %, 5 % or

10 %. The values of the E96/E24/E12 series are in accordance with “IEC publication 60063”.

Note

1. The maximum voltage that may be continuously applied to the resistor element, see “IEC publication 60115-1”.

The maximum permissible hot-spot temperature is 155

°C.

LIMITING VALUES

TYPE

(V)

LIMITING POWER

(W)

DC

RMS

VR25

1600

1150

0.25