Microsemi

Scottsdale Division

8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503

Page 1

Copyright

© 2000

MSC1686.PDF 2-14-2001 REV C

SMS03 thru SMS24

4 LINE UNIDIRECTIONAL TVSarray ™

PRODUCT PREVIEW

SCOTTSDALE DIVISION

DESCRIPTION

This 6 pin 4 line unidirectional array is designed for use in applications where

protection is required at the board level from voltage transients caused by

electrostatic discharge (ESD) as defined by IEC 61000-4-2, electrical fast

transients (EFT) per IEC 61000-4-4 and effects of secondary lighting.

These arrays are used to protect 4 discrete lines utilizing pins (1,3,4,6) with a

common anode (pins 2,5) configuration.

The SMS03 thru SMS24 product

provides board level protection from static electricity and other induced voltage

surges that can damage sensitive circuitry.

These Transient Voltage Suppressor (TVS) diode arrays protect 3.0/3.3 volt

components such as DRAM’s SRAM’s CMOS, HCMOS, HSIC, and low voltage

interfaces up to 24 volts. Because of the physical size, weight and protection

capabilities, this product is ideal for use in but not limited to miniaturized

electronic equipment such as hand held instruments, computers, computer

peripherals and cell phones.

IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com

ELECTRICAL CHARACTERISTICS PER LINE @ 25°C Unless otherwise specified

STAND

OFF

VOLTAGE

VOLTS

BREAKDOWN

VOLTAGE

@1 mA

VOLTS

CLAMPING

VOLTAGE

@ 1 Amp

(FIGURE 2)

VOLTS

CLAMPING

VOLTAGE

@ 5 Amp

(FIGURE 2)

VOLTS

STANDBY

CURRENT

µA

CAPACITANCE

(f = 1 MHz)

@ 0V

C

pF

TEMPERATURE

COEFFICIENT

mV/°C

PART

NUMBER

DEVICE

MARKING

MAX

MIN

MAX

MAX

MAX

TYP

MAX

SMS03

S3

3.3

4

7.5

11.5

100

200

-3

SMS05

S5

5.0

6.0

11

14.5

10

150

3

SMS12

S12

12.0

13.3

21

27

1

70

10

SMS15

S15

15.0

16.7

26

33

1

60

13

SMS24

S24

24.0

26.7

45

56 *

1

35

30

* CLAMPING VOLTAGE @ 3.6 Amp s

voltage should be equal to or greater than the continuous peak operating voltage of the circuit to be protected.

TVS array

APPLICATIONS

•

EIA-RS232 data rates

19.6kbs

•

EIA-RS422 data rates

10Mbs

•

EIA-RS423 data rates

100kbs

FEATURES

•

Protects 3.0/3.3 up through 24 volt components

•

Protects 4 unidirectional lines

•

Provides electrically isolated protection

•

SOT 23-6L Packaging

MAXIMUM RATIN GS

•

Operating Temperature: -55°C to +150°C

•

Storage Temperature: -55°C to +150°C

•

Peak Pulse power 200 watts (8/20 µs Figure 1)

•

SOT 23-6L Packaging

MECHANICAL

•

Molded SOT23-6L Surface Mount

•

Weight .014 grams (approximate)

•

Body Marked with device number

•

Part is symmetrical therefore pin one can be

defined as either one of the four corner pins (for

clarification see schematic on page 2)

PACKAGING

•

Tape & Reel per EIA Standard 481

•

3,000 pieces per 7 inch reel