SMxx
Series
UNi-directional
TVS
Diodes
Array
SOT-23 Plastic-Encapsulate
ESD
Protection
Diodes
DESCRIPTION
The SMxx Series is designed for applications requiring transient overvoltage protection capability.
They are intended for use in voltage and ESD sensitive equipment such as computers, printers,
business machines, communication systems, medical equipment and other applications. These devices
are ideal for situations where board space is at a premium.
This series has been specifically designed to protect sensitive components which are connected to
power
、
data and transmission lines from overvoltage caused by ESD(electrostatic discharge), CDE
(Cable Discharge Events),and EFT (electrical fast transients).
Features
350 Watts Peak Pulse Power per
(8/20μs)
IEC61000-4-2 (ESD) ±15kV (air), ±8kV (contact)
IEC61000-4-4 (EFT) 40A (5/50ns)
Protects one
bidirectional
line
or two
unidirectional lines
Low clamping voltage
Low leakage current
Working voltages : 3V, 5V,
8V,
12V, 15V,
18V，
20V，24V，36V
Meets MSL 1 Requirements
Pin
Configuration
Circuit Diagram
Applications
Mechanical Characteristics
Package:
SOT-23
Flammability Rating: UL 94V-0
High temperature soldering guaranted:
260℃/10s
Packaging: Tape and Reel
Cell Phone Handsets and Accessories
Microprocessor based equipment
Personal Digital Assistants (PDA’s)
Notebooks, Desktops, and Servers
Portable Instrumentation
Networking and Telecom
Serial and Parallel Ports
Peripherals
Absolute Maximum Ratings (T
A
=25°C unless otherwise specified)
Parameter
ESD per IEC 61000−4−2 (Air)
ESD per IEC 61000−4−2 (Contact)
Peak Pulse Power(tp=8/20us waveform)
Operating Temperature
Storage
Temperature
Lead Solder Temperature – Maximum (10 Second
Duration)
The above data are for reference only.
DN:T20323A0
Symbol
V
ESD
P
PP
T
OPT
T
STG
T
L
Value
±
15
±
8
350
−55 to +150
−55 to +150
260(10
sec.)
Unit
KV
W
°C
°C
°C
http://www.microdiode.com
Rev:2020A0
Page :1
SMxx
Series
UNi-directional
TVS
Diodes
Array
Electrical Characteristics
(TA=25°C unless otherwise specified)
PART
NUMBER
SM03
SM05
SM08
SM12
SM15
SM18
SM20
SM24
SM36
DEVICE
MARKING
V
RWM
(V)
(max.)
3.3
5
V
B
(V)
I
T
(mA)
V
C
@
1A
(V)
(max.)
V
C
(V)
(max.)
(@A)
20
17
I
R
(µA)
(max.)
40
10
C
T
(pF)
(max.)
450
300
(min.)
4
6
1
1
M03
M05
M08
M12
M15
M18
M20
M24
M36
7.0
9.8
14
18
8
12
15
18
20
24
36
8.5
13.3
16.7
20.0
22.3
26.7
40
1
1
1
1
1
1
1
13.4
19
24
29
35
43
60
24
32
38
45
50
52
75
15
11
10
9
8
7
2
1
1
1
1
1
1
240
130
120
100
90
80
60
5
The above data are for reference only.
http://www.microdiode.com
Rev:2020A0
Page :2
SMxx
Series
UNi-directional
TVS
Diodes
Array
ELECTRICAL CHARACTERISTICS CURVE
The curve above is for reference only .
http://www.microdiode.com
Rev:2020A0
Page :3
SMxx
Series
UNi-directional
TVS
Diodes
Array
Outlitne Drawing
SOT-23 Package Outline Dimensions
Symbol
A
A1
b
c
D
E
E1
e
L
L1
θ
Dimensions In Millimeters
Min
Typ
Max
1.00
1.40
0.10
0.35
0.50
0.20
0.10
2.70
2.90
3.10
1.40
1.60
2.4
2.80
1.90
0.10
0.30
0.4
0°
10°
E1
E
L1
e
0.037
0.95
Suggested Pad Layout
0.037
0.95
L
Note:
1. Controlling
dimension:in/millimeters.
2. General tolerance: ±0.05mm.
3. The pad layout is for reference purposes only.
0.079
2.0
0.035
0.9
0.031
0.8
inches
mm
Important Notice and Disclaimer
Microdiode Electronics (Jiangsu) reserves the right to make changes to this document and its
products and specifications at any time without notice. Customers should obtain and confirm the
latest product information and specifications before final design,purchase or use.
Microdiode Electronics (Jiangsu) makes no warranty, representation or guarantee regarding
the suitability of its products for any particular purpose, not does Microdiode Electronics
(Jiangsu) assume any liability for application assistance or customer product design. Microdiode
Electronics (Jiangsu) does not warrant or accept any liability with products which are purchased
or used for any unintended or unauthorized application.
No license is granted by implication or otherwise under any intellectual property rights of
Microdiode Electronics (Jiangsu).
Microdiode Electronics (Jiangsu) products are not authorized for use as critical components
in life support devices or systems without express written approval of Microdiode Electronics
(Jiangsu).
http://www.microdiode.com
Rev:2020A0
Page :4
SMxxC
Series
Bi-directional
TVS
Diodes
Array
SOT-23 Tape and Reel
Packaging Description:
SOT-23 parts are shipped in tape. The carrier
tape is made from a dissipative (carbon filled)
polycarbonate resin. The cover tape is a multilayer
film (Heat Activated Adhesive in nature) primarily
composed of polyester film,adhesive laye,sealant,
and anti-static sprayed agent.These reeled parts In
standard option are shipped with 3,000 units per 7"
or 17.8cm diameter reel. The reels are clear in color
and is made of polystyrene plastic (anti-static
coated).
3000
pcs
7 Inch
45,000 pcs
203×203×195
180,000 pcs
438×438×220
http://www.microdiode.com
Rev:2020A0
Page :5
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