VR25

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Vishay BCcomponents

Revision: 17-Aug-11

6

Document Number: 28732

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

12NC INFORMATION FOR HISTORICAL CODING REFERENCE

• The resistors have a 12-digit numeric code starting with

2322 241

• The subsequent:

first digit for 1 % tolerance products (E24 and E96 series)

or 2 digits for 5 % (E24 series) and 10 % (E12 series)

indicate the resistor type and packing.

• The remaining digits indicate the resistance value:

- The first 3 digits for 1 % or 2 digits for 5 and 10 %

tolerance products indicate the resistance value.

- The last digit indicates the resistance decade.

Last Digit of 12NC Indicating Resistance Decade

12NC Example

The 12NC for a VR25, resistor value 7.5 M

,5 % tolerance,

supplied on a bandolier of 1000 units in ammopack, is:

2322 241 13755.

4.26

Active flammability

“cheese-cloth test”

5min

No flaming of gauze cylinder

4.35

Passive flammability

“needle-flame test”

Application of test flame for 20 s

No ignition of product;

no ignition of under-layer;

burning time less than 30 s

TEST PROCEDURES AND REQUIREMENTS

IEC

60115-1

CLAUSE

IEC

60068-2-

TEST

METHOD

TEST

PROCEDURE

REQUIREMENTS

RESISTANCE DECADE

LAST DIGIT

100 k

 to 976 k

4

1M

 to 9.76 M

5

 10 M

6

12NC - Resistor type and packaging

TYPE

TOL.

(%)

2322 241 .....

BANDOLIER IN AMMOPACK

BANDOLIER

ON REEL

RADIAL TAPED

STRAIGHT LEADS

4000

UNITS

52 mm

26 mm

52 mm

52 mm

1000

UNITS

2000

UNITS

5000

UNITS

5000

UNITS

VR25

± 1

0....

8....

-

7....

6....

± 5

36...

13...

43...

53...

23...

± 10

38...

12...

42...

52...

22...