【技术】优恩半导体解析MOV压敏电阻与GDT放电管的工作过程
随着祖国科学领域的发展,电子工业领域也逐渐发生着变化,从过去只能生产几种简易的电子产品到现在生产出种类丰富,复杂精致的电子产品,我想科技与智慧是密不可分的,同样,电子产品的多样化功能的前提条件下也跟电子元器件息息相关。
今天,优恩跟大家一起来聊聊我们常见的电子元器件——MOV压敏电阻与GDT陶瓷气体放电管,以及他们之间是如何运行工作的。
MOV压敏电阻是一种具有非线性伏安特性的过压型保护器件,它的阻值会在一定的电压范围内随电压的变化而发生变化。当电压过大的时候,压敏电阻会进行电压钳位已吸收多余的电流,从而达到防护作用。
但也因为压敏电阻需要经常对电路中的大电流进行吸收,所以很容易老化,对其性能造成衰减,同时压敏电阻的寄生电容比较大,通常在正常工作状态下会造成过多的漏电流,过大的漏电流就会影响系统正常运行,导致问题出现。
通过工程师们的不断测试,发现MOV压敏电阻与GDT放电管串联使用能有效弥补了漏电流问题的发生。
GDT放电管其实也有寄生电容,但它的寄生电容很小,在跟压敏电阻串联使用后,整个串联支路的总电容可以降低到几微法,这个组合支路中,GDT放电管就类似开关,在正常工作状态下将压敏电阻与被保护系统隔断,这样压敏电阻的漏电流就有效控制住了,减少了流过压敏电阻的电压,漏电流也就不会增加,这样就有效减缓了压敏电阻的老化现象。
此外,MOV压敏电阻与GDT放电管串联使用还具有降低输出残压、提高电流容量、延长工作时间等优点。
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本文由犀牛先生转载自优恩半导体,原文标题为:MOV压敏电阻与GDT放电管串联使用的作用是什么?,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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DC24V电源端口浪涌保护
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设计经验 发布时间 : 2022-12-04
TMOV20D Series Thermal Fuse & MOV (TFMOV)
型号- 20D361KTB,20D361KTA,20D781KTA,20D781KTB,20D951KTA,20D951KTB,20D621KTB,20D621KTA,20D181KTB,20D181KTA,20D101KTB,20D101KTA,20D271KTA,20D271KTB,20D681KTB,20D241KTA,20D391KTB,20D391KTA,20D561KTB,20D561KTA,20D431KTB,20D431KTA,20D241KTB,20D121KTB,20D121KTA,20D681KTA,20D821KTA,20D221KTA,20D221KTB,20D112KTB,20D112KTA,20D301KTA,20D301KTB,20D151KTA,20D821KTB,20D911KTB,20D911KTA,20D151KTB,TMOV20D SERIES,20D751KTA,20D751KTB,TMOV20D,20D201KTA,20D331KTB,20D331KTA,20D201KTB,20D471KTA,20D471KTB,20D511KTA,20D511KTB,TMOV-20DXXX-KTB,TMOV-20DXXX-KTA,20D102KTB,20D102KTA
14D Series Radial Lead Varistor (MOV)
型号- 14D181K,14D,14D102KJ,14D270K,14D391K,14D330KJ,14D560KJ,14D270KJ,14D821K,14D221KJ,14D470KJ,14D681KJ,14D122K,14D391KJ,14D182KJ,14D102K,14D162K,14D142K,14D121KJ,14D142KJ,14D112KJ,14D390K,14D180L,14D821KJ,14D241KJ,14D820K,14D101K,14D331K,14D561K,14-D-XXX-K-X-X-X-X,14D511KJ,14D751K,14D121K,14D301KJ,14DXXXK,14D101KJ,14D331KJ,14D621KJ,14D561KJ,14D271KJ,14D431KJ,14D201KJ,14D220KJ,14D471KJ,14D621K,14D680KJ,14D751KJ,14D221K,14D112K,14D390KJ,14D560K,14D431K,14D681K,14D162KJ,14D201K,14D471K,14D181KJ,14D241K,14D122KJ,14D330K,14D271K,14D182K,14D361KJ,14D SERIES,14D781KJ,14D820KJ,14D511K,14D911K,14D180LJ,14D911KJ,14D781K,14D151KJ,14D680K,14D470K,14D301K,14D151K,14D361K,14D220K
【经验】解析深井地震探测设备雷击浪涌多极GDT陶瓷放电管与TVS管组合整改案例
本文介绍了优恩半导体雷击浪涌GDT陶瓷放电管与TVS管组合整改案例。案例问题描述的客户产品为深井地震探测仪,设备分为井下传感器、电源供电及通讯接口和井上地面设备数据采集器两部分,中间通过一根多芯铠装电缆承载,多芯线缆包括模拟信号、数字信号、供电和RS485信号。
设计经验 发布时间 : 2022-04-03
优恩半导体(UNSEMI)ESD静电保护/雷击浪涌保护器件/串口芯片产品选型指南(英文)
目录- Company Introduction ESD Protection Diodes(ESD) Transient Voltage Suppressor(TVS) Thyristor Surge Suppressors(TSS) Sidac Thyristor(SIDAC) Metal Oxide Varistors(MOV) Gas Discharge Tube(GDT) Spark Gap Protectors(SPG) Micro Surge Protection Module(Micro-SPD) Polymeric Positive Thermal Coefficient(PPTC) RS485/422 Transceiver CAN Transceiver RJ45 Modular Jack connectors Small signal devices EMI Protection devices
型号- SMDJ-AT SERIES,UNS3K,07DXXKJ,UN2E8-XXXML SERIES,SMBJ,UN2E5-XXXLL SERIES,40DXXK SERIES,UN232,UN2E8-XXXL HV,4.0SMF SERIES,UN1812-XXXCSMD SERIES,10DXXKJ,5.0SMDJ-AT SERIES,P6KE SERIES,30KP SERIES,SACB SERIES,UNS1K SERIES,PXXXSC SERIES,P4KE,SMD0603 SERIES,10DXXK SERIES,10DXXKEC SERIES,UN490E,UN3E8-XXXHP,UNSDC12V-3L,07DXXK,07DXXL,UN3E5-XXXMSMD,20DXXK SERIES,PXXXSB,15KPS,PXXXSA,PXXXSB-2L,P4SMA SERIES,SA SERIES,SMAJ,UN2220 SERIES,05DXXKJ,SAC SERIES,SMF SERIES,PXXXSC,KXXXSA SERIES,20KP,5.0SMDJ SERIES,0402 SERIES,20KP SERIES,TPSMAJ SERIES,PXXXLB SERIES,SMCJ SERIES,UN3490,P4SMA,UNSDC24V-3L,SMDJ,UNS1K,UN3E6-XXXMM,UN65HVD75,UN2E8-XXXL HV SERIES,SMDT,UN1812 SERIES,UN3220 SERIES,1.5SMC,SA,UN2E8-XXXML,UNS4032 SERIES,UN2E8-XXXHL SERIES,UN2E5-XXXL HV,UNSDC58V-2L,SMD1210 SERIES,PXXXSD1,UN2E5-XXXLSMD,PXXXEC SERIES,UN3485,UN16,5KP,1.5KE SERIES,TP5.0SMDJ,14DXXL SERIES,07DXXKBC SERIES,UNS2K,UN2E8-XXXMSMD,UN2E5-XXXLL HV SERIES,10DXXKEC,UNSDC24V-2L,32DXXL SERIES,14DXXKJ SERIES,UN3E8-XXXHM SERIES,SMCJ,TPSMB SERIES,UN1210-XXXBSMD SERIES,UN3E6-XXXM,TPSMDJ SERIES,UN65HVD233,UN65HVD234,UN65HVD232,UN65HVD230,SMBJ-AT,UN2E5-XXXL,UN2E8-XXXM,UN1210-XXXBSMD,10DXXKJ SERIES,34SXX,KC SERIES,UN2E6-XXXLSMD SERIES,UN2E8-XXXH,UNB-XXXN-SMD,UN3E8-XXXHMF,32DXXKJ SERIES,UN1050,UN3232E,UNA-XXXM-SMD,UN1050ISODUB,PXXXG,32DXXKJ,40DXXK,UNS3220,UNB-XXXM-SMD,40DXXL,UN3085NE,SMCJS,UN2E8-XXXHSMD,TPSMB10J,32DXXK,32DXXL,PXXXEC,UN30,PXXXEB,PXXXEA,30KP,P6SMB SERIES,PXXXSC-2L SERIES,15KP,PXXXSC-2L,0603,SMD2920 SERIES,10SMBT,14DXXKJ,UN82C250,UNSRS485-2HL,UN82C251,10SMBJ,05DXXL SERIES,25DXXL SERIES,TPSMC SERIES,UN2H8-XXXL HV SERIES,UNSDC58V-3L,SM8Z SERIES,TPSMCJ SERIES,SM5Z,UN6,UN3E5-XXXL,UN3088E,KXXXG SERIES,PXXXTB,PXXXTA,UN2E5-XXXLSMD SERIES,KA SERIES,UNB-XXXN-SMD SERIES,UN3088ES,07DXXL SERIES,5KP SERIES,UN3485ISO,8KP SERIES,PXXXEA SERIES,UNA-XXXN/M SERIES,SMCJS SERIES,3KP,SM8Z,UN3E5-XXXLM,SMCJ-AT SERIES,LCE SERIES,UNC-XXXN/M SERIES,PXXXSA SERIES,UNSRS485-2H,SMCJ-AT,25DXXKJ SERIES,UN0805 SERIES,PXXXDM,POE58C,15SMBJ,PXXXTB SERIES,PXXXSB-2L SERIES,UNA-XXXN-SMD,40DXXKJ SERIES,UNS3220 SERIES,UN1206 SERIES,P4KE SERIES,SM5Z SERIES,UN2E8-XXXMSMD SERIES,UN3E6-XXXMM SERIES,05DXXK,05DXXL,UN600 SERIES,1012 SERIES,UNB-XXXN/M SERIES,8.0SMDJ,UNSRS485-2L,P6SMB,SACA SERIES,40DXXKJ,40DXXL SERIES,PXXXDM SERIES,SACA,UN0603 SERIES,SACB,UN2E5-XXXL SERIES,UN2H8-XXXLL HV SERIES,SMD2920,0402,8.0SMDJ SERIES,25DXXL,25DXXK,UN30 SERIES,10DXXL SERIES,20DXXL SERIES,25DXXKJ,5KPS,UNA-XXXN-SMD SERIES,UN485E,UN2E8-XXXHL,PXXXSB SERIES,UN485ES,PXXXTA SERIES,UN3E8-XXXHMF SERIES,UN2H8-XXXLL HV,SMDJ-AT,4.0SMF,SMF,TPSMB10J SERIES,0603 SERIES,5KPS SERIES,UN2E8-XXXH SERIES,KD SERIES,UN60,SMAJ-AT SERIES,TPSMDJ,UN1206-XXXASMD SERIES,UN2E8-XXXHSMD SERIES,UN3232E-T,UN1210 SERIES,14DXXKSC,07DXXKBC,10DXXK,UNSDC48V-2L,10DXXL,53DXXK,UN3E8-XXXHSMD SERIES,2012 SERIES,UN0805,UN3E5-XXXMSMD SERIES,KA,KB,UN1812-XXXCSMD,KC,TPSMCJ,UN2E8-XXXLL HV,KD,6.0SMAJ SERIES,14DXXKSC SERIES,UNS2K SERIES,10SMBJ SERIES,TP5.0SMDJ SERIES,SMD1812 SERIES,UN60 SERIES,5.0SMDJ,UN3490E,UNSDC48V-3L,20DXXKYC SERIES,SMD0603,SMD1812,KXXXSB SERIES,UN1206,UN16 SERIES,SMBJ SERIES,UNSRS422-2H,SMDT SERIES,UN1210,UNSRS422-2L,UN135 SERIES,TPSMBJ,PXXXLC SERIES,UNS4032,0201 SERIES,UN1206-XXXASMD,UN2H8-XXXL HV,5.0SMDJ-AT,UN3E5-XXXL SERIES,20DXXKYC,UN3485S,UN3E6-XXXM SERIES,34SXX SERIES,UN2E5-XXXLL,05DXXK SERIES,0201,UN3E8-XXXHP SERIES,UN3E8-XXXH SERIES,UN1042,UN3220,TPSMAJ,UN1040,UN2E8-XXXLL HV SERIES,15KP SERIES,8KP,UN2E5-XXXL HV SERIES,UN2E6-XXXLSMD,6.0SMAJ,UN3E8-XXXHSMD,32DXXK SERIES,34SXXJ SERIES,SMD1206 SERIES,SMBJ-AT SERIES,TPSMA SERIES,UNC-XXXM-SMD,LCE,UN600,14DXXK,UN6 SERIES,14DXXL,UNC-XXXN-SMD SERIES,UNSRS422-2HL,15SMBJ SERIES,SAC,SMD0805 SERIES,SMAJ SERIES,UN3E5-XXXLM SERIES,UN3E5-XXXLSMD SERIES,UN250 SERIES,UN3E8-XXXH,UN485CUA,UN488E,UN250,KB SERIES,PXXXLC,UN2E5-XXXLL HV,UN135,PXXXLB,PXXXLA,07DXXK SERIES,SMD1206,UN0603,UN1812,20DXXL,20DXXK,PXXXEB SERIES,10SMBT SERIES,1.5KE,14DXXK SERIES,UNC-XXXN-SMD,05DXXKJ SERIES,3KP SERIES,P6KE,07DXXKJ SERIES,UNS3K SERIES,KXXXSD1 SERIES,TPSMC,SMD0805,25DXXK SERIES,TPSMB,TPSMA6J SERIES,TPSMA,TPSMBJ SERIES,34SXXJ,20DXXKJ,SMD1210,20DXXKJ SERIES,SMDJ SERIES,UN2220,UN2E8-XXXM SERIES,TPSMA6J,UNSDC12V-2L,1.5SMC SERIES,15KPS SERIES,SMAJ-AT,PXXXLA SERIES,UN3E5-XXXLSMD
32D Series Radial Lead Varistor (MOV)
型号- 32D182K,32D271K,32D621KJ,32D142K,32D911KJ,32D162K,32D331KJ,32D561KJ,32D122KJ,32D162KJ,32D201KJ,32D301K,32D471KJ,32D511K,32D431KJ,32D911K,32D241KJ,32D361K,32D781K,32D361KJ,32D SERIES,32DXXXK,32D201K,32D431K,32D221K,32D112K,32D621K,32D391KJ,32D241K,32D471K,32D,32D681K,32D102KJ,32D182KJ,32-D-XXX-K-X-X-X-X,32D142KJ,32D511KJ,32D781KJ,32D751K,32D331K,32D681KJ,32D221KJ,32D391K,32D561K,32D112KJ,32D301KJ,32D821K,32D271KJ,32D751KJ,32D102K,32D821KJ,32D122K
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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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