SOMC

www.vishay.com

Vishay Dale

Revision: 18-Apr-17

3

Document Number: 31508

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

DIMENSIONS

Notes

• The dimension shown are for a 16 pin part. For parts with different pin numbers use the same pitch and add or subtract pads as required

• Maximum solder reflow temperature +255 °C

MARKING INFORMATION

1 % parts have 4 digits while 2 % and 5 % parts have 3 digits.

CIRCUIT APPLICATIONS

01 Schematic

13, 15, or 19 resistors with one pin common

The SOMCxx01 circuit provides a choice of 13, 15, or 19 nominally equal resistors, each

connected between a common lead (14, 16, or 20) and a discrete PC board pin.

Commonly used in the following applications:

• MOS/ROM pull-up/pull-down



• Open collector pull-up



• “Wired OR” pull-up



• Power driven pull-up



• TTL input pull-down



• Digital pulse squaring



• TTL unused gate pull-up



• High speed parallels pull-up



03 Schematic

7, 8, or 10 isolated resistors

The SOMCxx03 circuit provides a choice of 7, 8, or 10 nominally equal resistors with each

resistor isolated from all others and wired directly across. Commonly used in the following

applications:

• “Wired OR” pull-up



• Power driven pull-up



• Powergate pull-up



• Line termination



• Long-line Impedance balancing



• LED current limiting



• ECL output pull-down



• TTL input pull-down



05 Schematic

TTL dual-line terminator; pulse squaring, 12, 14, or 18 pairs of resistors

The SOMCxx05 circuit contains 12, 14, or 18 pairs of resistors. Each pair is connected

between ground and a common line. The junctions of these resistor pairs are connected

to the input leads.

The 05 circuits are designed for TTL dual-line termination and pulse squaring.

SOLDER PAD DIMENSIONS in millimeters

abc

l

p

w

WAVE

0.64

1.91

5.34

9.53

1.27

9.15

REFLOW

0.64

1.91

5.34

9.53

1.27

9.15

DIMENSIONS in millimeters

PIN NO#

L

W

B

E

F

G

H

K

R

S

T

14

9.91

7.62

7.62

6.20

5.59

2.16

2.03

0.914

0.457

1.27

1.14

16

11.18

7.62

8.89

6.20

5.59

2.16

2.03

0.914

0.457

1.27

1.14

20

13.72

7.62

11.43

6.20

5.59

2.16

2.03

0.914

0.457

1.27

1.14

Tol.

± 0.254

± 0.381

± 0.254

± 0.381

± 0.127

± 0.127

± 0.127

± 0.076

± 0.254

SOMC16

SOMC20

Pin 1

SOMC14

SOMC16

SOMC20

Pin 1

SOMC14

R1

R1

R1

R1

R1

R1

R1

R2

R2

R2

R2

R2

R2

R1

R1

R1

R1

R1

R1

R1

R2

R2

R2

R2

R2

R2

R2

R2

SOMC14, SOMC16, SOMC20

Pin 1

Pin 1