MCS 0402, MCT 0603, MCU 0805, MCA 1206 - Professional

www.vishay.com

Vishay Beyschlag

Revision: 24-Jan-13

11

Document Number: 28705

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

HISTORICAL 12NC INFORMATION

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

2312.

• The subsequent 4 digits indicated the resistor type,

specification and packaging; see the 12NC table.

• The remaining 4 digits indicated the resistance value:

- The first 3 digits indicated the resistance value.

- The last digit indicated the resistance decade in

accordance with the last digit of 12NC indicating

resistance decade table.

Last Digit of 12NC Indicating Resistance Decade

Historical 12NC example

The 12NC of a MCT 0603 resistor, value 47 k

 and TCR 50

with ± 1 % tolerance, supplied in cardboard tape of

5000 units per reel was: 2312 215 14703.

RESISTANCE DECADE

LAST DIGIT

1

 to 9.99 

8

10

 to 99.9 

9

100

 to 999 

1

1 k

 to 9.99 k

2

10 k

 to 99.9 k

3

100 k

 to 999 k

4

1 M

 to 9.99 M

5

10 M

 to 99.9 M

6

HISTORICAL 12NC - Resistor type and packaging

DESCRIPTION

2312... .....

CARDBOARD TAPE ON REEL

TYPE

TCR

TOL.

P5

(5000 UNITS)

E0

(10 000 UNITS)

PW

(20 000 UNITS)

MCS 0402

± 50 ppm/K

± 1 %

-

275 1....

-

± 0.5 %

-

275 5....

-

± 25 ppm/K

± 0.5 %

-

276 5....

-

Jumper

-

-

275 90001

-

MCT 0603

± 50 ppm/K

± 1 %

215 1....

-

205 1..

± 0.5 %

215 5....

-

205 5....

± 25 ppm/K

± 0.5 %

216 5....

-

206 5....

Jumper

-

215 90001

-

205 90001

MCU 0805

± 50 ppm/K

± 0.5 %

255 5....

-

245 5....

± 25 ppm/K

± 0.5 %

256 5....

-

246 5....

Jumper

-

255 90001

-

245 90001