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SM712

CategoryDiscrete semiconductor    TVS diode   
File Size1MB,5 Pages
ManufacturerMicrodiode Semiconductor (Shenzhen) Co., Ltd.
Websitehttp://www.microdiode.com/
Shenzhen Chenda Semiconductor Co., Ltd. (MDD for short) is a national high-tech enterprise focusing on the R&D, design, packaging, testing and sales of semiconductor discrete devices. The company has been deeply involved in the semiconductor field for 16 years, always insisting on product technology as the driving force and customer needs as the core, creating a full range of high-reliability and high-performance product service matrix covering MOSFET, diodes, triodes, rectifier bridges, SiC, etc. The products are widely used in new energy vehicles, industrial control, consumer electronics, communications, home appliances, medical, lighting, security, instrumentation and other fields, serving more than 40 countries and regions around the world. The company adheres to the development concept of keeping pace with the times, based on the current advanced power device design and packaging and testing capabilities, continues to pay attention to the development trends of cutting-edge technologies and application fields, comprehensively promotes product upgrades and iterations, improves the industrialization of power devices and the ability of service closed loop, and provides customers with sustainable, all-round and differentiated one-stop product solutions. Looking to the future, the company will rely on its ability to insight the industry, through the dual-wheel drive of brand and technology, to quickly realize the development vision of "building an international leading brand of semiconductor discrete devices" and help upgrade China's semiconductor industry.
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SM712
Asymmetrical TVS Diode for
Extended Common-Mode RS-485
SOT-23 Plastic-Encapsulate
ESD
Protection
Diodes
DESCRIPTION
The SM712 transient voltage suppressor (TVS) diode is designed for asymmetrical (12V to -7V)
protection in multi-point data transmission standard RS-485 applications. The SM712 may be used to
protect devices from transient voltages resulting from electrostatic discharge (ESD), electrical fast
transients (FET), and lightning.
The SM712 features 400 Watts (tp=8/20μs) of power handling capability to accommodate the higher
transient voltage levels which may be expected in extended common mode applications. This provides
higher equipment reliability and eliminates the “ guess work” required when using zener diodes that are
not rated to handle such transient conditions.
The integrated design aids in reducing voltage over-shoot associated with trace inductance. The low
clamping voltage of the SM712 minimizes the stress on the protected transceiver. The SOT-23 package
allows flexibility in the design of “crowed” circuit boards.
Features
400
Watts Peak Pulse Power per
(8/20μs)
Transient protection for asymmetrical data lines to
IEC61000-4-2 (ESD) ±15kV (air), ±8kV (contact)
IEC61000-4-4 (EFT) 40A (5/50ns)
IEC61000-4-5 (Lightning)
12A (8/20μs)
Protects
two
+12V to -7V lines
Low capacitance
Low leakage current
Low clamping voltage
Solid-state silicon avalanche technology
Meets MSL 1 Requirements
Schematic &
Pin
Configuration
3
1
SOT23 (Top View)
2
Circuit Diagram
I/O 1
1
I/O 2
2
12V
12V
7V
7V
SM712
GND
3
Applications
Mechanical Characteristics
Package:
SOT-23
Flammability Rating: UL 94V-0
Terminal: Matte tin plated.
High temperature soldering guaranted:
260℃/10s
Marking: 712 or C72
Packaging: Tape and Reel
Rev:2020A0
Page :1
Protection of RS-485 transceivers with extended
common-mode range
Security systems
Automatic Teller Machines
HFC systems
Networks
DN:T20401A0
http://www.microdiode.com
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