【应用】全业电子推出POE混合供电防护方案，具备高过浪涌等级和高安全系数，低残压更好保护敏感器件

时间： 2023-04-16 来源：全业电子

技术问答

以太网供电技术（POE）的发展，简化用电设备的安装和部署，省去了需要设置独立输电的专用线。如今以太网供电技术（POE）广泛应用于安防、通信以及智能电网等工业系统，用以实现系统内的数据和数据之间的传播以及通过总线实现供电。而工业使用环境和安防使用环境对电子产品的要求十分的严苛，POE更加容易遭受浪涌和静电的干扰或冲击，相对应的浪涌和静电的防护也是必不可少的。

全业电子推出的POE混合供电防护方案

一、应用背景

1. 天气变化，雷雨天气越来越多

2. 电子设备使用精密化，一场景多样多个设备公用，电气环境复炸化

3. POE电源和信号共存，因此防护等级增加

二、POE防护方案

全业电子推出的POE混合供电防护方案，采用了全业电子推出的陶瓷气体放电管（GDT）作为主要防护，压敏电阻（MOV）、瞬态抑制二极管（TVS）、静电保护器（ESD）作为次要防护。很好的解决了POE需要承受高浪涌大通流，并且低残压照顾了POE供电芯片和信号芯片不能承受高电压的问题。

三、产品器件型号

1.一级防护：

陶瓷气体放电管（GDT）：UN2E5-90L

（对于供电总线和数据线工作电流较大的可以选择电压高一点的GDT，如230V、350V）

（对于需要浪涌等级要求不高的，且空间有限的可选择封装较小的GDT，如1812、1206）

（对于需要浪涌等级要求较高的，且空间有限的可选择封装较小的GDT，如2E8）

2.二级防护：

压敏电阻（MOV）：14D820KJ

（对于需要浪涌等级要求不高的，且空间有限的可选择封装较小的压敏电阻，如10D；或者去掉压敏电阻）

瞬态抑制二极管（TVS）：SMCJ58CJ

（对于需要浪涌等级要求较高的，且电路退耦较低的可选择功率较大的器件，如SMDJ）

四、优势

1. 过浪涌等级高

2. 二级防护，使用器件少，安全系数高

3、残压低，更好保护敏感器件。

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本文由圆明园驯兽师转载自全业电子，原文标题为:全業电子POE雷击浪涌防护推荐，本站所有转载文章系出于传递更多信息之目的，且明确注明来源，不希望被转载的媒体或个人可与我们联系，我们将立即进行删除处理。

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全业电子（QY Semiconductor）GDT陶瓷气体放电管选型指南

目录- Surface Mount 2-Electrode Gas Discharge Tube 2-Electrode Gas Discharge Tube High Voltage 2-Electrode Gas Discharge Tube 3-Electrode Gas Discharge Tube Switching Spark Gap

型号- UN3E8-150HP,UN3E8-150HM,UN2E8-150M,UN2E6-SMD SERIES,UN2E6-75LSMD,UN2E5-350L,UN1210-400BSMD,UN2E8-230HL,UN2E5-600LL,UN2E8-2000L,UN2E8-420HSMD,UN3E5-420L,UN3E8-90HP,UN3E8-90HM,UN3E5,UN2E5-470LSMD,UN3E6,UN3E8-600H,UN2K8-400SMD,UN2E8-250MSMD,UN3E6-350M,UN3E8,UN3E5-75LSMD,UN2E6-300LSMD,UN3E8-420HMF,UN2E8-300HSMD,UN2E5-230L,UN3E5 SERIES,UN3E5-75LM,UN3E8-75HM,UN2K8-800L-,UN2K8-300L,UN3E8-75HP,UN2E8-300H,UN3E8-75H,UN2K8-600SMD,UN2E8-150H,UN2K8-450,UN2E8-300M,UN2E8-250HSMD,UN3E6-230M,UN2E5-470LL,UN2E8-150HSMD,UN2E6-150LSMD,UN2E5-350LSMD,UN1812-600CSMD,UN2E5-600LSMD,UN2E5-1600DL,UN3E5-150L,UN1812 SERIES,UN2K8-XXXSMD,UN2E8-420H,UN2E5-2500DL,UN3E6-XXXM,UN2E8-800H,UN3E6-XXXL,UN2E5-90L,UN2E8-420M,UN3E5-75L,UN2K8-800SMD-1,UN1206-400ASMD+,UN2E6-400LSMD,UN2E8-800M,UN2H8-XXXLL,UN3E8-230H,UN2E5-XXXL,UN3E6-150MM,UN2E8-75MSMD,UN2E5-3500D,UN2E5-250LL,UN2E8-150MSMD,UN2E8-800ML,UN2E5-XXXD,UN2E5-470L,UN3E8-90HMF,UN1206-470ASMD,UN3E5-300L,UN2K8-800L,UN2E8-75ML,UN2E8-2500L,UN1210-150BSMD,UN2E8-150ML,UN3E6-470M,UN2E8-90ML,UN2E8-1000L,UN2E8-470MSMD,UN3E5-470LM,UN2E8-800MSMD,UN2E8-1000LL,UN2E5-1000DL,UN3E6-XXXMM,UN2E8-800HL,UN2E8-420HL,UN2H8-4000LL,UN1812-470CSMD,UN3E8-350HMF,UN3E8-XXXHM,UN1210-470BSMD,UN2E6-350LSMD,UN2E5-1000D,UN2E8-470H,UN2E5-230LL,UN2E8-470HSMD,UN2E8-2000LL,UN2E5-1600D,UN2E8-2500LL,UN2E8-250M,UN3E5-150LM,UN3E6-XXXLM,UN3E8-75HMF,UN3E8-XXXHP,UN2E8-470HL,UN2E5-90LSMD,UN1812-200CSMD,UN3E8-250HM,UN2E8-230ML,UN3E5-XXXLSMD,UN3E8-300HMF,UN2E5-2700D,UN3E8-250HP,UN2E5-230LSMD,UN2E8-75HSMD,UN2E8-2700L,UN3E5-350LSMD,UN3E5-420LM,UN3E6-250M,UN2K8-800,UN3E5-250LSMD,UN2E5-XXXDL,UN2K8-450L,UN2K8-600L-1,UN1206-230ASMD,UN2E8-3000LL,UN2K8-600-1,UN3E5-600LM,UN2E5-600L,UN3E6-75M,UN2H8-6000L,UN2E5-300LL,UN2E5-SMD SERIES,UN2E8-230HSMD,UN2E8-250H,UN2E8-300HL,UN2H8-4500LL,UN2K8-600SMD-1,UN3E8-230HMF,UN3E6-150M,UN2E8-90M,UN3E5-150LSMD,UN3E6-420MM,UN3E8-600HM,UN2E8-90H,UN2E8-230MSMD,UN3E8-600HP,UN2E8-800HSMD,UN2E8-420MSMD,UN3E5-250L,UN1210-420BSMD,UN1812-300CSMD,UN2E5-350LL,UN2E8-3500LL,UN1206 SERIES,UN1210-230BSMD,UN2K8-350,UN2K8-300SM,UN2K8-230,UN2E8-350HL,UN3E6-250MM,UN2E6-SMD,UN3E6-420M,UN2E5-150LSMD,UN3E5-300LSMD,UN1812-400CSMD,UN2K8-500SMD,UN2E5-800LL,UN3E8-90H,UN2E6-600LSMD,UN2E8-90MSMD,UN3E5-XXXLM,UN2K8-230L,UN2E5-800L,UN3E5-300L I,UN3E8-470HM,UN2E8-600H,UN3E8-300HP,UN2K8,UN2E8-90HL,UN3E8-470HP,UN2E8-470ML,UN3E8-300HM,UN2E8-600M,UN3E6-75MM,UN3E6-470MM,UN2K8-500,UN3E6-300M,UN3E8-350HM,UN3E8-350HP,UN3E8-XXXHMF,UN3E5-470L,UN3E5-XXXL,UN1206-420ASMD,UN2K8-600L,UN1812-230CSMD,UN3E8-600HMF,UN2E8-600HSMD,UN3E6-300MM,UN2E5-300L,UN2E5-400LL,UN2E8-300ML,UN3E5-250LM,UN1210 SERIES,UN2E8-350ML,UN2E8-600ML,UN1206-150ASMD,UN1812-350CSMD,UN3E8-420HP,UN2E8-350M,UN2K8-XXXL,UN1812-90CSMD,UN2H8-5000L,UN2K8-230SM,UN3E6-350MM,UN3E8-420HM,UN2K8 SERIES,UN2E8-250HL,UN2E8-XXXLL,UN2E5-90LL,UN2K8-500L,UN3E5-600L,UN2E8-600MSMD,UN3E5-420LSMD,UN2E8-1600L,UN2K8-350SMD-2,UN2H8-5000LL,UN2K8-350SMD-1,UN2E8-230M,UN3E6-90MM,UN3E6-600MM,UN3E8-800H,UN2E8-230H,UN3E8-420H,UN2K8-600,UN2E6-90LSMD,UN2E5-75L,UN2E8-XXXM,UN2E8-XXXL,UN3E5-90L,UN2E8-90HSMD,UN2H8-5500L,UN2K8-450SMD,UN2E8-XXXH,UN2E8-470M,UN3E8 SERIES,UN3E5-230L,UN3E5-230LSMD,UN2K8-350L,UN2E5-2700DL,UN2H8-5500LL,UN2E5-75LL,UN3E8-800HMF,UN2E5-SMD,UN1206,UN2E8-XXXML,UN3E8-300H,UN2E8-HSMD,UN1210,UN2E5-2Q00D,UN3E8-150H,UN2E8-350H,UN2E5-400LSMD,UN1206-200ASMD,UN3E5-300LM,UN2K8-350SMD,UN2E5-2000DL,UN3E8-470H,UN2E5-400L,UN2E8-350HSMD,UN1206-350ASMD,UN2K8-300,UN2H8 SERIES,UN2K8-XXX,UN2E5-250L,UN2E8-3000L,UN3E8-XXXH,UN2E6-470LSMD,UN2E8-600HL,UN3E5-350LM,UN3E8-800HP,UN2E8-350MSMD,UN1812-150CSMD,UN2E8-2700LL,UN3E5-90LSMD,UN3E8-250HMF,UN2E5-3000D,UN2H8,UN3E6-230MM,UN2E5-3500DL,UN3E8-350H,UN2E5-XXXLL,UN2H8-6000LL,UN3E8-150HMF,UN2E5-150L,UN1206-400ASMD,UN1210-350BSMD,UN2E8-3500L,UN3E6-600M,UN3E8-800HM,UN2E6-230LSMD,UN3E5-470LSMD,UN2E5-200LSMD,UN2K8-800SMD,UN2E5 SERIES,UN1812,UN2E8 SERIES,UN3E5-90LM,UN2E5-150LL,UN3E5-350L J,UN1812-400CSMD+,UN2K8-350L-2,UN2K8-350-2,UN2H8-4500L,UN1210-300BSMD,UN2E8-75M,UN2E5,UN2E8-300MSMD,UN2K8-350L-1,UN2E8-XXXHL,UN3E8-250H,UN2K8-400,UN2E8-75H,UN2E8-1600LL,UN2E8,UN2E8-150HL,UN2K8-350-1,UN1206-300ASMD,UN3E5-230LM,UN2E5-3000DL,UN3E8-470HMF,UN3E6 SERIES,UN2E8-420ML,UN3E6-90M,UN2E5-300LSMD,UN2E8-75HL,UN3E5-600LSMD,UN2K8-800-1,UN2H8-4000L,UN1210-200BSMD,UN2E5-2500D,UN2H8-XXXL,UN2K8-400L,UN2E8-250ML,UN3E8-230HP,UN3E8-230HM

选型指南 - 全业电子 - 2022/8/31 PDF 英文下载

MLV0402ES012V0100N Surface Mount Multilayer Varistors

型号- MLV0603NA009V0030,HSP1210SV470V0250,MLV0603ES005V0022N,MLV0402NA009V0020,HSP3220SV430V1000,MLV0603ES024V00R8P,MLV1210HA026V0400,MLV1812HA045V0800,MLV1210HA018V0400,MLV0603NA018V0030,MLV0805NA026V0100,HSP2220SC047V5000,HSP1206SN012V6000,HSP2220SC075V3000,HSP3220SV470V1000,HSP1812SC075V2000,MLV0805NA030V0100,MLV,MLV0402NA011V0020,MLV0805NA045V0080,HSP1210SN047V6000,MLV0402ES024V0003P,MLV0402NA018V0020,MLV0805NA018V0100,HSP2220SV390V0800,MLV0603ES012V0100N,MLV0402ES012V0005P,MLV1812HA038V0800,HSP1206SC012V0500,HSP1210SC075V1000,MLV0402ES005V0022N,MLV0402ES005V0010N,HSP2220SC047V8000,MLV0603ES024V02R5P,HSP1210SN075V6000,HSP2220SV470V0500,HSP1812SC047V2000,MLV0805NA006V0080,MLV0805NA009V0080,HSP2220SV430V0500,MLV0402ES024V02R5P,MLV0603ES005V0010N,MLV1206HA026V0200,HSP1206SC047V0500,MLV0603ES012V0056N,MLV1210HA038V0400,HSP1210SV470V0500,MLV1206HA018V0200,HSP1210SC024V1000,MLV0805NA038V0100,MLV0402ES012V0010N,MLV0402NA006V0020,HSP1206SC075V0500,MLV0603ES024V0003P,MLV1206HA014V0200,MLV0402NA014V0020,MLV1206HA022V0200,HSP2220SV390V0500,MLV0603NA014V0030,HSP1206SN012V4000,HSP1210SN047V4000,MLV0402ES024V00R8P,MLV0603NA030V0030,MLV1210HA030V0400,MLV0603ES012V0005P,MLV0603NA022V0030,MLV0603NA006V0030,MLV1210HA022V0400,MLV0805NA014V0100,HSP1210SV390V0200,MLV0805NA011V0100,MLV0402ES012V0100N,MLV0603ES005V0005P,HSP1210SC047V1000,MLV0603ES005V0033N,MLV1206HA038V0200,MLV0805NA022V0100,MLV0402ES005V0056N,HSP2220SV470V0800,MLV1206HA030V0200,MLV1210NA018V0250,HSP1206SC024V0500,MLV0402ES005V0005P,MLV1812NA045V0500,MLV0603ES012V0010N,MLV0603NA038V0030,MLV SERIES,MLV0603ES012V0022N

数据手册 - AEM科技 - Mar. 2023 PDF 英文下载