CM1225電路保護(hù)的TVS-二極管規(guī)格書PDF中文資料

CM1225屬于電路保護(hù)的TVS-二極管。由安森美半導(dǎo)體公司制造生產(chǎn)的CM1225TVS - 二極管TVS 二極管是一種半導(dǎo)體器件，可用于限制或阻止特定電壓電平的浪涌。該系列產(chǎn)品使用二極管（只能單向?qū)щ姷脑骷┻M(jìn)行設(shè)計。TVS 是 Transient Voltage Suppression/Suppressor（瞬態(tài)電壓抑制/抑制器）的首字母縮寫。類型包括轉(zhuǎn)向（軌至軌）或齊納，具有單向通道、雙向通道、電壓 – 反關(guān)態(tài)、電壓 – 擊穿、電壓 – 箝位、電流 – 峰值脈沖、功率 – 峰值脈沖和電源線路保護(hù)等特征。

Product Description

The CM1225 diode array has been designed to provide ESD protection for electronic components or subsystems requiring minimal capacitive loading. This device is ideal for protecting systems with high data and clock rates or for circuits requiring low capacitive loading. Each ESD channel consists of a pair of diodes in series which steer the positive or negative ESD current pulse to the ground pins (VN). A Zener diode is embedded between the positive terminal of the diode pair to the ground. This eliminates the need for an external bypass capacitor to absorb positive ESD strikes to ground. The CM1225 protects against ESD pulses up to ±8kV per the IEC 61000-4-2 standard.

Features

? Four channels of ESD protection

? Provides ESD protection to IEC61000-4-2 Level 4

? ±8kV contact discharge

? Low channel input capacitance of 0.8pF (typically)

? Channel input capacitance matching (I/O to I/O) of 0.02pF (typically) is ideal for differential signals

? Minimal capacitance change for temperature and voltage

? Zener diode eliminates the need for external bypass capacitors

? Each I/O pin can withstand over 1000 ESD strikes*

? Available in a RoHS compliant (lead-free) package

Applications

? HDMI ports, DVI ports in notebooks, set top boxes, digital TVs, and LCD displays

? Display and MDDI ports

? Serial ATA ports in desktop PCs and hard disk drives

? PCI Express ports

? USB2.0 ports at 480Mbps in desktop PCs, notebooks and peripherals

? IEEE1394 FireWire ports at 400Mbps / 800Mbps

? General purpose high-speed data line ESD protection

? Protection of interface ports or IC pins which are exposed to high ESD levels