For technical questions in the Americas, contact foilsupport1@vishay.com

For technical questions in Asia/Japan/Europe/Africa/Israel, contact foilsupport2@vishay.com

Document Number: 63042

Revision 08-Mar-05

www.vishay.com

124

1421

Vishay Foil Resistors

• ISRAEL: foilsales.israel@vishay.com

• FRANCE/SWITZERLAND/SOUTHERN EUROPE: foilsales.eusouth@vishay.com

• AMERICAS: foilsales.usa@vishay.com

• ASIA/JAPAN: foilsales.asia@vishay.com • UK/HOLLAND/SCANDINAVIA: foilsales.eunorth@vishay.com • GERMANY/CZECH REPUBLIC/AUSTRIA: foilsales.eucentral@vishay.com

SALES

Bulk Metal

12 Pin Transistor Outline Hermetic Resistor Network

The 12 pin TO-8 package is suitable for ladder networks up to ten

bits and other more complicated networks. It is also a good

choice when power dissipation is a consideration. This network

can contain up to 49, V5X5 resistor chips.

Review data sheet “7 Technical Reasons to Specify Bulk

Metal® Foil Resistor Networks.”

VISHAY

CHIP

MAXIMUM POWER RATING

MODEL NUMBER

CAPACITY

(WATTS) @ +70

1421

V5X5 - 49 chips

0.6 Watt

NOTES:

1. These networks utilize Vishay Bulk Metal

chips V5X5 and V15X5 or VTF15X10 Thin Film chips.

2. The V5X5 and V15X5 chips have maximum resistance

values of 10K and 33K respectively in Bulk Metal

and 500K in VTF15X5 Thin Film chips.

ORDERING INFORMATION - 1421 PARTS

Networks are built to your requirements. Send your schematic and

electrical requirements to the Applications Engineering Depart-

ment. (See data sheet “Network Worksheet.”) A unique part

number will be assigned which defines all aspects of your network.

6

5

4

3

1

9

8

7

1

3

4

6

7

9

10

12

2

NOTE: Usable area is represented by dotted lines— a square

0.350 Inches x 0.350 Inches. Illustrations not to scale.

Chips shown undersize for clarity. Drawing view is from

the top looking down into the package.

10

11

12

2

5

8

11

FIGURE 2 - SAMPLE CIRCUIT DESIGN AND CHIP LAYOUT

88

7

6

5

4

3

21

12

11

10

0.150

(3.81)

MAXIMUM

12 LEADS

0.016 –0.019

(0.41 –0.48)

0.590 –0.610

(14.99 –15.49) DIAMETER

0.500

(12.7)

0.540 –0.560

(13.71 –14.22)

0.026 –0.036

(0.66 –0.91)

0.100

(2.54)

0.400

(10.16)

TYPICAL

0.200

(5.08)

TYPICAL

0.026 –0.036

(0.66 –0.91)

0.200

(5.08)

VIEWED FROM BOTTOM

FOUR DIVIDERS

FIGURE 1 - STANDARD DIMENSIONS in inches (millimeters)

Product may not

be to scale

MINIMUM

TYPICAL

TYPICAL