Microsemi

Scottsdale Division

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

Page 1

2000

MSC1686.PDF 2-14-2001 REV C

WWW.

Microsemi

.
COM

SMS03 thru SMS24

4 LINE UNIDIRECTIONAL TVSarray TM

PRODUCT PREVIEW

S C O T T S D A L E D I V I S I O N

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

@ V

µA

CAPACITANCE

(f = 1 MHz)

@ 0V

TEMPERATURE

COEFFICIENT

OF V

VBR

mV/°C

PART

NUMBER

DEVICE

MARKING

MAX

MIN

MAX

TYP

MAX

SMS03

3.3

7.5

11.5

100

200

-3

SMS05

5.0

6.0

14.5

150

SMS12

S12

12.0

13.3

SMS15

S15

15.0

16.7

SMS24

S24

24.0

26.7

56 *

* CLAMPING VOLTAGE @ 3.6 Amp s

Note: Transient Voltage Suppressor (TVS) product is normally selected based on its stand off voltage V

. Product selected

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

T V S array

S E R I E S

APPLICATIONS

EIA-RS232 data rates

19.6kbs

EIA-RS422 data rates

10Mbs

EIA-RS423 data rates

100kbs

F E A T U R E S

Protects 3.0/3.3 up through 24 volt components

Protects 4 unidirectional lines

Provides electrically isolated protection

SOT 23-6L Packaging

M A X I M U M R A T I N G S

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

M E C H A N I C A L

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)

P A C K A G I N G

Tape & Reel per EIA Standard 481

3,000 pieces per 7 inch reel

SMS03 thru SMS24

Microsemi

Scottsdale Division

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

Page 2

2000

MSC1686.PDF 2-14-2001 REV C

WWW.

Microsemi

.
COM

SMS03 thru SMS24

4 LINE UNIDIRECTIONAL TVSarray TM

PRODUCT PREVIEW

S C O T T S D A L E D I V I S I O N

S Y M B O L S & D E F I N I T I O N S

Symbol

DEFINITION

Rated stand off voltage: Maximum dc voltage that can be applied over the operating temperature range. Vwm

must be selected to be equal or be greater than the operating voltage of the line to be protected

Minimum Breakdown Voltage: The minimum voltage the device will exhibit at a specified current

Clamping Voltage: Maximum clamping voltage across the TVS device when subjected to a given peak pulse

current at a pulse time of 20

Standby Current: Leakage current at V

WM.

Capacitance: Capacitance of the TVS as defined @ 0 volts at a frequency of 1 MHz and stated in Pico Farads.

G R A P H S

P A C K A G I N G A N D S C H E M A T I C

8/20µs 200W Pulse

100

1000

FIGURE 1

Peak Pulse Power Vs Pulse Time t=µsec

FIGURE 2

Pulse Wave Form

Ppp Peak Pulse Power (Kw)

.01

0.001

DIMENSIONS MILLIMETERS

DIMENSIONS INCHES

DIM

MIN

NOM

MAX

MIN

NOM

MAX

2.70

2.90

3.10

.106

.114

.127

0.00

0.10

.000

.004

1.00

1.10

1.30

.039

.043

.051

0.35

0.40

0.50

.014

.016

.020

0.10

0.15

0.25

.004

.006

.010

1.50

1.60

1.80

.059

.063

.071

1.70

1.90

2.10

.067

.075

.083

2.60

2.80

3.00

.102

.110

.118

0.20

.008

GRAPHS PACKAGE

DATA

Part Number SMS03