【技术】半导体放电管的工作原理
半导体放电管是一种过压保护装置,它是利用晶闸管原理制成的。它依靠PN结的击穿电流触发装置导通放电,可以流过大的浪涌电流或脉冲电流。那么半导体放电管的工作原理是什么?本文嘉兴南电来为大家介绍。
半导体放电管,又称固体放电管,是一种PNP元件,当外加电压低于断电压时,设备处于断开状态;当电压超过其断电峰值电压时,半导体放电管会将瞬态电压钳制在元件的转换电压中;当电压继续增加时,半导体放电管由于负阻效应进入导通状态,此时几乎短路;当外加电压恢复正常时,电流会迅速下降,低于维持电流,元件会自动复位,恢复到高阻抗状态。
它是一种基于可控硅原理和结构的二端负阻装置,用于保护敏感易损的集成电路,避免雷电和突然波动造成的损坏。它采用先进的气力注入技术,具有导通准确、响应快、电涌吸收组能力强、可靠性高的特点;广泛应用于程序控制交换机、电话机、传真机、配线架、XDSL、通信接口、通信发射设备等所有需要防雷保护的领域,以保护内部集成电路免受瞬时过电压的冲击和损坏。
半导体放电管特性参数:
①断电电压VRM和漏电流IRM:断电电压VRM表示半导体过电压保护器不通电的最高电压,该电压下只有少量漏电流IRM。
②破坏电压VBR:通过规定的测试电流IR(一般为1mA)时的电压,表示半导体过压保护器开始通电的标志电压。
③转换电压VBO和转换电流IBO:当电压升高到转换电压VBO时,半导体过压保护器完全通过,呈现小阻抗,两端电压VT立即降至非常低的值(一般在5V左右)。
④峰值脉冲电流IPP:半导体过压保护器能承受的最大脉冲电流。
⑤维持电流IH:半导体过压保护器继续保持导电状态的最小电流。一旦流过的电流小于维持电流IH,就会恢复到截止状态。
⑥静态电容器c:半导体过压保护器静态电容器值。
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电安科技公司及产品介绍
描述- 电安科技(DA TECHNOLOGY)是一家专注于新材料和新能源电路保护的科技企业,产品应用于电动汽车、汽车电子、LED照明等领域。公司拥有专业的研发团队和丰富的产品线,包括过流保护器件、过压保护器件、瞬态电压抑制器(TVS)等。电安科技致力于为客户提供安全可靠的电路保护方案。
型号- SF335A100,SMBJ,MF551,SLVU2.8-4,1812L,1812N,MF551A050X,SLVU2.8-8,UAT4P22A,UAT4P33CA,UAT4P40CA,CA501,TPAU10L-1,SF335A060,TPA523G05C,TPA1610D4V5H,SMAJ,UAT4P22CA,MF551A063X,SF331,SMF,UAT4P26CA,TPA323HL,SF335A050,TPA1006G03,TPA1610L05,TPA,SMDJ,UAT4P36CA,UAT4P24A,UAT4P36A,ASMF,0603N,SF335A080,5KP,CC221,0603L,0805N,TPA1610H7A,0805L,TPA323H,5.0SMDJ,SMCJ,TPA323H-C,UAT4P40A,TPA0564L,1KSMB,TF101,TF102,TPA23,1210L,TPA3810-8L,TPA100612C,1210N,UAT4P26A,1206L,TPAU10L-1L,SM6S,TPA5235U,30KP,TPA223124,CA422,CC204,CC203,CC202,CA421,CC201,15KP,TF111,SF335A020,TF112,TPA61089,UAT4P28CA,SF335A015,UAT4P20CA,TPA1006L1,UAT4P24CA,SF301F,UAT4P30A,CA435,CA434,CA431,CC213,CA432,TPA143L05,CC211,CA551,TPA0603L,TPA0603G,UAT4P28A,MF551A040X,UAT4P20A,SM8T,SM8S,TPASRV05-4,TPA1006G,TPA23C-24,TPA1006H,TPA2231H,SF335A040,MF501,TPA3304P8,TPA1006L,UAT4P33A,TPA712,SF302,1206,SF303,2920N,SF301,TPA2231H18,UAT4P30CA,SF304,TPA5235B,TPA1255,2920L,TPA05MFC,SF335A030
SPxxxxSD DO-214AA TSS晶闸管浪涌抑制器
描述- 本资料介绍了SPxxxxSD系列半导体保护晶闸管,这是一种表面贴装型抑制器,用于保护基带设备免受损害过电压瞬变的影响。该系列产品具有低电容、低剖面封装、低导通状态电压等特点,适用于多种通信设备和网络基础设施。
型号- SP1500SD,SP0900SD,SPXXXXSD,SPXXXXSD SERIES,SP2300SD,SP1300SD,SP2600SD,SP0720SD,SP1800SD,SP3100SD,SP4200SD,SP3500SD,SP1100SD,SP3800SD,SP0800SD,SP0640SD
CP0080TBC TSS
描述- 该资料介绍了JIEJIE MICROELECTRONICS CO., Ltd生产的CP0080TBC型硅控整流器。这是一种半导体组件,主要用于保护基带设备免受损害过电压瞬变的侵害。
型号- CP0080TBC
P0150SD-A TSS
描述- 该资料介绍了JieJie Microelectronics生产的P0150SD-A半导体组件。该组件旨在保护基带设备免受损害过电压瞬变的影响,适用于调制解调器、电话、线路卡、自动答录机、传真机、T1/E1、xDSL等多种设备。
型号- P0150SD-A
WAYON 公司介绍 电路保护/功率半导体/IC产品
型号- WP3883CL系列,4030,0603系列,WJ1028-AT,WR0120-AT,2410系列,WP311X,1140,WR00521-AT,WP3883CL,5432系列,0402,4030系列,MLR,WR0115-AT,2718系列,0603,WP311X系列,9550系列,WR0366-AT,WJ1021-AT,5432,1206系列,WR0368-AT,WJ1050-AT,0402系列,WJ1044-AT,9550,WR0322-AT,1140系列,1206,2410,WJ1042-AT,WJ1040-AT,2718,C4 系列,MLR系列
里阳半导体(Liown)汽车行业保护器件选型指南
目录- 公司简介 产品概述 汽车瞬态干扰相关标准 汽车AEC-Q101测试标准 汽车电子架构及保护器件应用
型号- SMBJ5.0A,SM6S24A,SMCJ440A-Q,2R090MM-8,30KP-Q,SM8S33A,SMBJ6.5A,15KP36A-Q,5KP-Q,SM6S,SMCJ75A-Q,5KP36A-Q,SMBJ6.5CA,15KP-Q,SM8S30A,2R075ML-8,5.0SMDJ36A-Q,561KD20J,LTHXXA-YYBWGH,5.0SMDJ-Q系列,5KP33A-Q,SM8S系列,220KD10,220KD10J,20KP-Q,SMCJXXA,2R090ML-8,5KP24A-Q,SMBJ7.0A,180KD10,15KP30A-Q,5KP系列,5.0SMDJ-Q,SM8S,180KD10J,5.0SMDJ24A-Q,5KP,15KP20A-Q,SMBJ7.0CA,15KP24A-Q,15KPXXA-Q,SMBJ6.0A,SM8S20A,SM8SXXA,SMBJ30CA-Q,2R075MM-8,5.0SMDJ75A-Q,2R800ML-8,SMBJ16CA,SMBJ6.0CA,SM8S24A,SM8S36A,SM6S系列,P6SMAJ33CA-Q,SMBJ5.0CA
SPxxxxSC DO-214AA TSS晶闸管浪涌抑制器
描述- 本资料介绍了SPxxxxSC系列半导体保护晶闸管,这是一种表面贴装型抑制器,用于保护基带设备免受损害过电压瞬变的影响。该系列产品适用于调制解调器、电话、线路卡、自动应答机、传真机、T1/E1、xDSL等多种设备。
型号- SP0900SC,SPXXXXSC,SPXXXXSC SERIES,SP0640SC,SP1500SC,SP2600SC,SP2300SC,SP0720SC,SP1800SC,SP4800SC,SP4200SC,SP3100SC,SP0300SC,SP3500SC,SP3800SC,SP1100SC,SP0220SC,SP1300SC,SP0080SC
SPXXXXSA DO214AC晶闸管浪涌抑制器
描述- 本资料介绍了SPxxxxSA系列的半导体保护晶闸管,这是一种表面贴装型抑制器,用于保护基带设备免受损害过电压瞬变的影响。该系列器件具有低电容、低导通态电压等特点,适用于多种通信设备和网络基础设施。
型号- SP0900SA,SP0640SA,SPXXXXSA SERIES,SPXXXXSA,SP2300SA,SP0720SA,SP3100SA,SP1800SA,SP1100SA,SP3500SA,SP3800SA,SP2600SA,SP1300SA,SP1500SA
电子商城
现货市场
服务
加工精度:精密平面磨床正负0.002;铣床正负0.02,ZNC放电正负0.01。CNC加工材料:铝、钢、聚合物等材料。专注于半导体行业、医疗器械、汽车行业、新能源行业、信息技术行业零部件加工。
最小起订量: 1个 提交需求>
可定制UV胶的粘度范围:150~25000cps,粘接材料:金属,塑料PCB,玻璃,陶瓷等;固化方式:UV固化;双固化,产品通过ISO9001:2008及ISO14000等认证。
最小起订量: 1支 提交需求>
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