APPLICATIONS
EIA-RS232 data rates
19.6kbs
EIA-RS422 data rates
10Mbs
EIA-RS423 data rates
100kbs
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 1
Copyright
2004
MSC1686.PDF 10-21-2004 REV E
SMS05 thru SMS24
4 LINE UNIDIRECTIONAL TVSarray
SCO T TSDALE DIVISION
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TVSarray
SERIES
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 SMS05 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 5 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
FEAT UR ES
Protects 5 up through 24 volt components
Protects 4 unidirectional lines
Provides electrically isolated protection
SOT 23-6L Packaging
PACKAG ING
Tape & Reel per EIA Standard 481
3,000 pieces per 7 inch reel
MAX I MU 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 s Figure 1)
SOT 23-6L Packaging
MECHAN ICAL
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)
ELECTRICAL CHARACTERISTICS PER LINE @ 25°C Unless otherwise specified
STAND
OFF
VOLTAGE
VWM
VOLTS
BREAKDOWN
VOLTAGE
VBR
@1 mA
VOLTS
CLAMPING
VOLTAGE
VC
@ 1 Amp
(FIGURE 2)
VOLTS
CLAMPING
VOLTAGE
VC
@ 5 Amp
(FIGURE 2)
VOLTS
STANDBY
CURRENT
ID
@ VWM
A
CAPACITANCE
(f = 1 MHz)
@ 0V
C
pF
TEMPERATURE
COEFFICIENT
OF VBR
αVBR
mV/°C
PART
NUMBER
DEVICE
MARKING
MAX
MIN
MAX
TYP
MAX
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
S
M
S
03
th
ru
S
M
S
24
* CLAMPING VOLTAGE @ 3.6 Amps
Note: Transient Voltage Suppressor (TVS) product is normally selected based on its stand off voltage VWM. Product selected
voltage should be equal to or greater than the continuous peak operating voltage of the circuit to be protected.