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参数资料
| 型号： | SR05.TC |
| 元件分类： | TVS二极管 - 瞬态电压抑制 |
| 英文描述： | 500 W, UNIDIRECTIONAL, SILICON, TVS DIODE, TO-253AA |
| 封装： | SOT-143, 4 PIN |
| 文件页数： | 6/9页 |
| 文件大小： | 203K |
| 代理商： | SR05.TC |
6
2005 Semtech Corp.
www.semtech.com
PROTECTION PRODUCTS
SR05
Applications Information (continued)
the power supply connection. During an ESD event,
the current will be directed through the integrated TVS
diode to ground. The total clamping voltage seen by
the protected IC due to this path will be:
V
C = VF(RailClamp) + VTVS
This is given in the data sheet as the rated clamping
voltage of the device. For a SR05 the typical clamping
voltage is <16V at I
PP=30A.
The diodes internal to the
RailClamp are low capacitance, fast switching devices
that are rated to handle transient currents and main-
tain excellent forward voltage characteristics.
Universal Serial Bus ESD Protection
The figure below illustrates how to use the SR05 to
protect one upstream USB port and the SRDA05-4 to
protect two downstream USB ports. When the voltage
on the data lines exceed the bus voltage (plus one
diode drop), the internal rectifiers are forward biased
conducting the transient current away from the pro-
tected controller chip. The TVS diode directs the surge
to ground. The TVS diode also acts to suppress ESD
strikes directly on the voltage bus. Thus, both power
and data pins are protected with a single device.
Reference Semtech application note SI96-18 for
further information.
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.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SR05TCT | 制造商:Semtech Corporation 功能描述: |
| SR05TG | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:RailClamp Low Capacitance TVS Diode Array |
| SR06 | 功能描述:XLR 连接器 BLU STRN RLF-25/BAG RoHS:否 制造商:Neutrik 标准:Standard XLR 产品类型:Connectors 型式:Female 位置/触点数量:3 端接类型:Solder 安装风格:Cable 方向:Vertical |
| SR060 | 制造商:Black Box Corporation 功能描述:ABC-RJ-45 RACK MOUNT |
| SR0602100ML | 制造商:ABC 制造商全称:ABC Taiwan Electronics Corp 功能描述:SMD POWER INDUCTOR |
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