【产品】结电容只有13pF、可承受65A浪涌电流冲击的双线压敏电阻器

时间： 2018-06-28 来源：SHINDENGEN

技术问答

SHINDENGEN（新电元）半导体公司推出的VRYA6系列（订购型号：VRYA6-7062）压敏电阻器拥有四只脚（双线）共两条浪涌电流释放路径，它采用1Y封装形式，支持双向吸收雷击浪涌和静电放电（ESD）能量，具有13pF较低的结电容，并能承受65A的大电流冲击，适合用于电话机、数字通信等通讯设备通信线端口的浪涌或ESD保护。

VRYA6双线压敏电阻器是1Y小型封装，长宽高是8.0*5.0*3.7（mm），有四只脚两条电流释放路径线，可以用在差分线上或者两条信号线上，节约布板空间。

图1 VRYA6封装外形尺寸图

VRYA6双线压敏电阻器在环境温度25°C时的额定参数如下表所示：

参数	符号	条件	值	单位
保存温度	Tstg		-30~+125	°C
结合部温度	Tj		125	°C
平均整流电流	IO	Ta=40°C，50Hz正弦波	310	mArms
浪涌峰值电流	IFSM	50Hz正弦波非重复脉冲	8	A
		10/200us非重复脉冲	65
		10/1000us非重复脉冲	30

表1 VRYA6额定参数表

从表1可以看出，VRYA6双线压敏电阻器存储温度和结合部温度可达125°C，可以适应高温恶劣的环境；峰值浪涌电流65A，具有很大的浪涌和ESD电流吸收能力。

VRYA6在环境温度25°C时的电气特性如下表所示：

动作电压

IF=1mA

最小2.05

最大2.55

结电容

F=100Khz ，V0=50mVrms

典型值13

热阻

Өja

结合处

最大250

°C/W

表2 VRYA6电气特性表

VRYA6双线压敏电阻器的结电容只有13pF，在1Y这种封装器件里算得上是比较罕见的低容值了，因此VRYA6可以用在高速线路上而不会影响高速线路的正常工作，比如一些端口LVDS（低压差分数字信号）线路就非常适合使用VRYA6；另外，它超低的2.05V动作电压可以最大限度的抑制浪涌，使得电话机、数字通信设备、ISDN终端等设备得到很好的保护，免受雷击浪涌和静电放电的冲击，保护这些设备的通信端口正常工作。

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描述- In addition to offering diverse diodes as a leading company of diodes, Shindengen offers a broad range of MOSFETs from low-withstand voltage to high-withstand voltage, as well as high-withstand power ICs and power modules that centralize power circuit components.

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通用整流二极管桥式二极管肖特基势垒二极管快速恢复二极管晶闸管双向晶闸管硅双向触发开关浪涌吸收器瞬态浪涌抑制器功率MOSFET 电源模块电源芯片

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