SM03 thru SM36, e3
SCOTTSDALE DIVISION
Bidirectional/Unidirectional TVSarray ™
PRODUCT PREVIEW
DESCRIPTION
T V S array
™
S E R I E S
WWW .
Microsemi
.C
OM
DESCRIPTION (300 watt)
This 3 pin TRANSIENT VOLTAGE SUPPRESSOR offers 2 unidirectional or 1
bidirectional protection 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.
Unidirectional protection can be accomplished by connecting the Input/Output lines
to pins 1 and 2 and pin 3 to common ground. In a bidirectional configuration pin 1 or
pin 2 is connected to common or ground. Pin 3 is not connected. The SM03 thru
SM36 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 36 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. RoHS Compliant devices also available be adding an e3 suffix.
APPLICATIONS
•
EIA-RS232 data rate
19.6kbs
•
EIA-RS422 data rate
10Mbs
•
EIA-RS423 data rate
100kbs
IMPORTANT:
For the most current data, consult
MICROSEMI’s
website:
http://www.microsemi.com
FEATURES
•
•
•
•
Protects 3.0/3.3 up through 36V components
Protects 2 undirectional or 1 bidirectional line
Provides electrically isolated protection
RoHS Compliant devices available by adding e3 suffix
PACKAGING
•
Tape & Reel per EIA Standard 481
•
7 inch reel 3,000 pieces (STANDARD)
MECHANICAL
MAXIMUM RATINGS
•
•
•
•
Operating Temperature: -55°C to +150°C
Storage Temperature: -55°C to +150°C
Peak Pulse power 300 watts (8/20 µs Figure 1)
Pulse Repetition Rate: < .01%
•
•
•
•
CASE: Molded epoxy SOT-23 (meets UL94V-0)
FINISH: Tin-Lead or RoHS Compliant annealed
matte-Tin plating readily solderably per MIL-
STD-750 method 2026
WEIGHT: 0.014 grams (approximate)
MARKING: See marking code below
ELECTRICAL CHARACTERISTICS PER LINE @ 25°C Unless otherwise specified
STAND
OFF
VOLTAGE
V
WM
VOLTS
MAX
3.3
5.0
12.0
15.0
24.0
36.0
BREAKDOWN
VOLTAGE
V
BR
@1 mA
VOLTS
MIN
4
6.0
13.3
16.7
26.7
40.0
CLAMPING
VOLTAGE
V
C
@ 1 Amp
(FIGURE 2)
VOLTS
MAX
7
9.8
19
24
43
60
CLAMPING
VOLTAGE
V
C
@ 5 Amp
(FIGURE 2)
VOLTS
MAX
9
11
24
30
55
75
STANDBY
CURRENT
I
D
@ V
WM
µA
MAX
200
20
0.1
0.1
0.1
0.1
CAPACITANCE CAPACITANCE
@0V 1 MHz)
@0V 1 MHz)
C
C
Pin 1-2
Pin 1-3 or 2-3
pF
MAX
600
400
160
130
80
70
pF
MAX
300
200
80
65
40
35
PART
DEVICE
NUMBER MARKING
SM03
SM05
SM12
SM15
SM24
SM36
M03
M05
M12
M15
M24
M36
Note: Transient Voltage Suppressor (TVS) product is normally selected based on its stand off voltage V
WM
. Product selected
voltage should be equal to or greater than the continuous peak operating voltage of the circuit to be protected.
Copyright
©
2005
9-13-2005 REVJ
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 1
SM03 thru SM36, e3
SCOTTSDALE DIVISION
Bidirectional/Unidirectional TVSarray ™
PRODUCT PREVIEW
WWW .
Microsemi
.C
OM
SYMBOLS & DEFINITIONS
Symbol
V
WM
V
BR
V
C
I
D
C
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 current at a
pulse time of 20
µs.
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.
GRAPHS
10000
Ppp Peak Pulse Power Watts
8/20µs 300W Pulse
1000
100
10
.1
1
10
100
1000
10000
FIGURE 1
Peak Pulse Power Vs Pulse Time t=µsec
PACKAGING AND SCHEMATIC
FIGURE 2
Pulse Wave Form
GRAPHS PACKAGE
DATA
SCHEMATIC
Copyright
©
2005
9-13-2005 REVJ
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 2
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