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参数资料
| 型号： | SM712.TCT |
| 元件分类： | TVS二极管 - 瞬态电压抑制 |
| 英文描述： | 400 W, UNIDIRECTIONAL, 4 ELEMENT, SILICON, TVS DIODE |
| 封装： | LEAD FREE PACKAGE-3 |
| 文件页数： | 1/6页 |
| 文件大小： | 147K |
| 代理商： | SM712.TCT |
PROTECTION PRODUCTS
1
www.semtech.com
PROTECTION PRODUCTS
SM712
Asymmetrical TVS Diode for
Extended Common-Mode RS-485
Description
Features
Circuit Diagram
Schematic & PIN Configuration
Revision 11/17/04
The SM712 transient voltage suppressor (TVS) diode is
designed for asymmetrical (12V to -7V ) protection in
multi-point data transmission standard RS-485 applica-
tions. The SM712 may be used to protect devices
from transient voltages resulting from electrostatic
discharge (ESD), electrical fast transients (EFT), and
lightning.
The SM712 features 400 Watts (tp = 8/20s) 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 SM712 replaces four discrete components by
integrating two 12V and two 7V TVS diodes in a single
package. 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 SOT23
package allows flexibility in the design of “crowded”
circuit boards.
Applications
Mechanical Characteristics
Protection of RS-485 transceivers with extended
common-mode range
Security systems
Automatic Teller Machines
HFC systems
Networks
400 watts peak pulse power (t
p = 8/20s)
Transient protection for asymmetrical data lines to
IEC 61000-4-2 (ESD) ±15kV (air), ±8kV (contact)
IEC 61000-4-4 (EFT) 40A (5/50ns)
IEC 61000-4-5 (Lightning) 12A (8/20s)
Protects two +12V to -7V lines
Low capacitance
Low clamping voltage
Solid-state silicon avalanche technology
JEDEC SOT23 package
Molding compound flammability rating: UL 94V-0
Marking : 712
Packaging : Tape and Reel per EIA 481
SOT23 (Top View)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SM712TG | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Asymmetrical TVS Diode for Extended Common-Mode RS-485 |
| SM712-TP | 功能描述:ESD 抑制器 12V, 1.0uA RoHS:否 制造商:STMicroelectronics 通道:8 Channels 击穿电压:8 V 电容:45 pF 端接类型:SMD/SMT 封装 / 箱体:uQFN-16 功率耗散 Pd: 工作温度范围:- 40 C to + 85 C |
| SM7153 | 制造商:SAMHOP 制造商全称:SAMHOP 功能描述:ELECTRONIC VOLUME CONTROLLER |
| SM71628XA2JIES2 | 制造商:SMART Modular Technology Inc 功能描述:2 GB SOLID STATE DRIVE - Bulk |
| SM7175-43 | 制造商:STEALTH_MICROWAVE 制造商全称:STEALTH_MICROWAVE 功能描述:7100-7500 MHz 20 Watt Ultra-Linear Power Amplifier |
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