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参数资料
| 型号： | SMS15.TCT |
| 元件分类： | TVS二极管 - 瞬态电压抑制 |
| 英文描述： | 350 W, UNIDIRECTIONAL, 4 ELEMENT, SILICON, TVS DIODE |
| 封装： | HALOGEN FREE AND ROHS COMPLIANT, PLASTIC PACKAGE-6 |
| 文件页数： | 5/7页 |
| 文件大小： | 129K |
| 代理商： | SMS15.TCT |
5
2010 Semtech Corp.
www.semtech.com
PROTECTION PRODUCTS
SMS05 through SMS24
SMSxx Circuit Diagram
Protection of Four Unidirectional Lines
Device Connection for Protection of Four Data Lines
The SMSxx is designed to protect up to four unidirec-
tional data lines. The device is connected as follows:
1. Unidirectional protection of four I/O lines is
achieved by connecting pins 1, 3, 4 and 6 to the
data lines. Pin 2 and 5 are connected to ground.
The ground connections should be made directly to
the ground plane for best results. The path length
is kept as short as possible to reduce the effects
of parasitic inductance in the board traces.
Circuit Board Layout Recommendations for Suppres-
sion of ESD
Good circuit board layout is critical for the suppression
of ESD induced transients. The following guidelines are
recommended:
Place the SMSxx near the input terminals or con-
nectors to restrict transient coupling.
Minimize the path length between the SMSxx and
the protected line.
Minimize all conductive loops including power and
ground loops.
The ESD transient return path to ground should be
kept as short as possible.
Never run critical signals near board edges.
Use ground planes whenever possible.
Matte Tin Lead Finish
Matte tin has become the industry standard lead-free
replacement for SnPb lead finishes. A matte tin finish
is composed of 100% tin solder with large grains.
Since the solder volume on the leads is small com-
pared to the solder paste volume that is placed on the
land pattern of the PCB, the reflow profile will be
determined by the requirements of the solder paste.
Therefore, these devices are compatible with both
lead-free and SnPb assembly techniques. In addition,
unlike other lead-free compositions, matte tin does not
have any added alloys that can cause degradation of
the solder joint.
Applications Information
相关PDF资料 |
PDF描述 |
|---|---|
| SMS15C-LF | 350 W, BIDIRECTIONAL, 5 ELEMENT, SILICON, TVS DIODE |
| SMS12C-LF | 350 W, BIDIRECTIONAL, 5 ELEMENT, SILICON, TVS DIODE |
| SMS05C-LF | 350 W, BIDIRECTIONAL, 5 ELEMENT, SILICON, TVS DIODE |
| SMS12-LF | 350 W, UNIDIRECTIONAL, 4 ELEMENT, SILICON, TVS DIODE |
| SMS24C | 300 W, UNIDIRECTIONAL, 5 ELEMENT, SILICON, TVS DIODE |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SMS15TG | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:TVS Diode Array For ESD and Latch-Up Protection |
| SMS160 | 制造商:SEMIKRON 制造商全称:Semikron International 功能描述:Schottky barrier rectifiers diodes |
| SMS172ATP | 功能描述:LED透镜 Amber Sealed 3mm Low Profile RoHS:否 制造商:VCC 产品:LED Lenses 直径:0.28 in 材料:Polycarbonate |
| SMS172BTP | 功能描述:LED透镜 Blue Sealed 3mm Low Profile RoHS:否 制造商:VCC 产品:LED Lenses 直径:0.28 in 材料:Polycarbonate |
| SMS172CTP | 功能描述:LED透镜 Clear Sealed 3mm Low Profile RoHS:否 制造商:VCC 产品:LED Lenses 直径:0.28 in 材料:Polycarbonate |
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