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参数资料
| 型号： | SR2.8.TG |
| 元件分类： | TVS二极管 - 瞬态电压抑制 |
| 英文描述： | 200 W, UNIDIRECTIONAL, SILICON, TVS DIODE |
| 封装： | PLASTIC PACKAGE-4 |
| 文件页数： | 6/8页 |
| 文件大小： | 106K |
| 代理商： | SR2.8.TG |
6
2003 Semtech Corp.
www.semtech.com
PROTECTION PRODUCTS
SR2.8
10/100 Ethernet ESD Protection
10/100 Ethernet ICs are vulnerable to damage from electrostatic discharge (ESD). The fatal discharge may
originate from a charged cable (cable discharge event or CDE) or the body of a user. Charges can exceed
several thousand volts under the right conditions. If the circuit is left unprotected, the voltage will be capaci-
tively coupled thru the transformer, potentially damaging or latching-up the Ethernet Phy chip. The figure above
illustrates how to use the SR2.8 to protect one 10/100 Ethernet line pair. The devices are connected differen-
tially between transmit and receive line pairs. When the voltage on the data lines exceeds the TVS punch-
through (plus one diode drop), the internal rectifiers are forward biased conducting the transient current away
from the protected chip. The design takes advantage of the isolation provided by the line transformer to
suppress common mode surges.
Typical Applications
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相关代理商/技术参数 |
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| SR29 | 制造商:PANJIT 制造商全称:Pan Jit International Inc. 功能描述:MINI SURFACE MOUNT SCHOTTKY BARRIER RECTIFIER |
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| SR290PT | 制造商:CHENMKO 制造商全称:Chenmko Enterprise Co. Ltd. 功能描述:SCHOTTKY BARRIER RECTIFIER |
| SR291A101KAA | 制造商:AVX Corporation 功能描述:CAP 100PF 100VDC C0G 10% RDL 2.54MM - Bulk |
| SR291A101KAR | 制造商:AVX Corporation 功能描述:CAP 100PF 100VDC C0G 10% RDL 2.54MM - Bulk |
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