肖特基二极管损坏的原因有哪些？
肖特基二极管因其具有低正向压降、高开关速度等特性，在电源设计、频率转换和信号检测等领域得到了广泛应用。然而，肖特基二极管在使用过程中也会出现损坏的情况，这不仅影响电路的正常工作，还可能导致系统的不稳定甚至损坏。本文将分析肖特基二极管损坏的几个常见原因，并提出相应的预防措施。
1.过电压损坏
肖特基二极管在遭受高于其耐压极限的电压冲击时，极易发生击穿损坏。这类过电压可能来源于电路的开关操作、电源突波、静电放电等。一旦超出二极管的耐压范围，其内部结构会受到破坏，导致永久性损坏。
预防措施：设计电路时选择适当的耐压等级，并在二极管两端添加TVS(瞬态抑制二极管)等保护元件，以吸收可能出现的高能量冲击。
2.过热损坏
肖特基二极管在长时间工作于高电流状态下，会因内部功耗导致过热，这种过热情况会降低其内部结构的稳定性，进而损坏二极管。此外，环境温度的过高也会加剧这一问题。
预防措施：合理设计散热方案，比如增加散热片、改善PCB布局等。同时，选择合适的工作电流，避免长时间在高电流模式下工作，减少内部热生成。
3.反向电流损坏
肖特基二极管不像普通二极管那样能承受较大的反向电流。当二极管承受超出其规格的反向电流时，会导致内部结构损坏，尤其是在高温环境下更为严重。
预防措施：确保设计时二极管的最大反向电流不超过其规格值，并适当选择具有较高反向电流容忍度的肖特基二极管。
4.机械应力损坏
在装配或是因为机械振动过大时，肖特基二极管也可能因机械应力而损坏。过大的机械压力可以导致二极管内部结构的微观裂纹，影响其正常工作。
预防措施：在装配电路板和设计机械结构时，应尽量避免对二极管施加过大的机械压力。使用适当的固定方式，减少因振动引起的机械应力。
5.电化学腐蚀
在特定的环境条件下，如高湿度环境，肖特基二极管的外部或内部可能会发生电化学腐蚀，导致其性能退化甚至损坏。
预防措施：通过合适的封装和涂层保护，减少环境对二极管的影响。同时，控制使用环境的湿度和清洁度，避免腐蚀性气体的侵蚀。
肖特基二极管的损坏可以由多种因素引起，了解这些损坏机理对于设计稳定可靠的电路至关重要。通过采取适当的设计和预防措施，可以显著降低肖特基二极管损坏的风险，延长电路的使用寿命。
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本文由玉鹤甘茗转载自辰达行官网，原文标题为:肖特基二极管损坏的原因有哪些？，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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目录- 企业简介和产品概览 静电保护器（ESD） 瞬态抑制二极管（TVS） 半导体放电管（TSS） 双向触发二极管（SIDAC） 压敏电阻（MOV） 陶瓷气体放电管（GDT） 玻璃气体放电管（SPG） 微型防雷模组（MLPM） 自恢复保险丝（PPTC） RS485/422收发器 CAN收发器 网口RJ45连接器 分立功率器件 EMI保护元器件
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SERIES,5KP28A,SCGB1608H121EPF,30KPA108A,SMF110A,15KPA28A,SMAJ8.5CA,SC1210-420BSMD,SMAJ180A,P4KE100A,SC135-650,SCC-471M,SMBJ17A,SMF85CA,SMBJ120CA,5.0SMDJ220A,SM5S,SM8E,SM8S16CA,SM6S22A,20KPA120CA,5KP8.0A,1.5SMC10A,SC2E5-3500D,SC3E6-230M,3KP75CA,SMBJ14A,SM8S,P6SMB18A,SMDJ16CA,SCGB1608S221FPF,SMBJ130A,1.5SMC130CA,5.0SMDJ350A,SCPB1608S601LPF,15KPA26A,15KPA48CA,SMDJ440CA,34S350K/40,5KP120CA,SCGB1005S200FPF,SA100A,SMBJ15A,SCF125-2920R,SMAJ170CA,KA-133,SCWL252010G-R47ML,15KPA180A,30KPA260CA,SMBJ12A,SMAJ6.0A,P6KE62CA,SC3E8-150HP,SC250-1000S,TPSMEJ,SC3E8-150HM,1.5SMC91A,SA7.5CA,5.0SMDJ78A,SMCJ7.0A,SMDJ51CA,15KPA22CA,5.0SMDJ48CA,SMBJ13A,SCBE-471M,SC2E8-150MSMD,TPSMDJ,P6KE75A,P4SMA220A,KB-380,34S440K/65D,SMCJ150A,20KPA172A,SC1210-350BSMD,SC1812-90CSMD,TPSMCJ,SA6.0A,SCF200-1812R,5KP8.5A,SMAJ78A,KA-100,SC3E8-800HM,5KP120A,SC3E8-800HP,SMBJ10A,SMBJ11A,P4KE27A,5.0SMDJ400A,SMAJ22CA,SC3E5-350LM,TPSMBJ,SMCJ6.5CA,8.0SMDJ22CA,SMAJ75A,SMCJ36A,SA190CA,SCPB1005S121MPF,SM4KBF,5.0SMDJ75A,P4SMA9.1A,TH8S 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SERIES,SMCJ26CA,SA75A,TH8D,20KPA24A,TH8S,SMDJ43A,1.5SMC91CA,SCHB1608W601EPF,1.5SMC180CA,20KPA300CA,SCPB-S SERIES,1.5KE250A,SCF012-0603R,SA78A,53D361K,SMAJ85CA,P4SMA200A,SA190A,K1-076,1.5KE8.2A,2
如何测试肖特基二极管的好坏？
肖特基二极管因其低正向压降和快速开关特性而广泛应用于电源、整流和保护电路中。然而，在使用过程中，肖特基二极管可能会因为过载、过压或老化等原因而损坏。因此，掌握如何测试肖特基二极管的好坏是非常重要的。本文中辰达行来为大家介绍一二。
设计经验 发布时间 : 2024-07-21
肖特基二极管的用途有哪些？
肖特基二极管是一种低功耗、超高速、反向恢复时间短的二极管。因此，肖特基二极管有许多用途，如高频、低压、大电流整流二极管、续流二极管、保护二极管、整流二极管、小信号检测二极管等。在微波通信和其他电路中。一般来说，肖特基二极管常用于通信电源、变频器等。常用的包装形式有：TO-220AB、ITO-220AB、TO-247。有许多类型的贴片肖特基二极管以SS开头命名的较多。
原厂动态 发布时间 : 2021-07-26
【选型】辰达行（Microdiode）肖特基二极管选型表
目录- Schottky Diode
型号- SL05100,MBRF 1630CT,MBR1660,MBRD1045D,SS1200,SK110,B330B,MBRB 30100CT,MBR 8100C,B560B,SL15150,B2150B,MBRF 2080CT,SB530,MBR 1570CT,SK108,SK34F,MBRD845T,SK22F,SL55B,SL1580,SK58F,B5200B,MBR 2020CT,SK52BF,SS18F,MBR1650,SK103,B268B,SK104,SK106,MBRF 10150CT,MBR 850CT,MBR 3050CT,B220B,SK102,SL210BF,SB520,SK5150F,MBR1645,SK33F,SK215BF,MBRF 1050CT,MBR790,SL54B,MBRF 16100CT,MBR1640,SK1200F,B320B,MBR 860CT,SS52BF,B550B,SB550,SB15100L,MBRB 1040CT,MBRF 1520CT,SK24F,SK12F,SB5150,MBRF 1040CT,MBR 2030CT,SK36F,SL1560,MBR 1680CT,MBR1630,MBRD 20150D,MBRD845D,B210B,SS210BF,MBRD 2045T,SL1550,SL0580,SB540,MBRF 2090CT,SB1045L,MBRD 20150T,SK35F,SK310BF,SS320BF,SK23F,MBRD1045T,MBRD 2045D,MBR1620,SL56B,SS28,SR240L,SS310HE,SS26,SS24,SS25,SS22,ST36B,SS23,ST310B,SK315,B350B,B580B,SK310,MBR 870CT,SL1545,MBRF 1060CT,SS38F,SS32,SS26F,SS14F,SK54F,SR180,SS3150F,SS18,MBR 2045CT,SS15,SK510BF,SS16,MBR1690,SS13,SK53F,SS14,SS12,SK54BF,B240B,SS3200,MBRB 3045CT,ST34B,MBR1090CT,SS25F,SS13F,SL05150,SR170,SR290,SS210F,SL0560,MBR1680,SR1100,MBR 3060CT,MBR 1690CT,SS220BF,MBRD840D,SK210,MBRD8150T,B340B,SB1580L,MBRF 1545CT,MBR 1080CT,SL20200,SS28F,SS53,MBRF 3090CT,B0540WS,SS16F,SK56F,SS54,SK32F,SS52,SS110F,SL0550,MBRD8150D,SK6,SL53B,MBRF 10100C,DSS34,SK32BF,MBR1670,DSS36,DSS35,SS38,SS35,SS36,DSS32,SS33,SS34,MBRF 1620CT,SS2200,DSS38,B230B,SK320,MBRF 20200CT,MBRF 15100CT,MBR 1580CT,SL52B,SL0545,MBR10100,SS15F,SK55F,SK520BF,SR1200,MBRD840T,SL0540,SR190,MBRD1060T,MBR 3080CT,MBR1020,DSS22,DSS25,DSS24,MBRD10100D,SK22BF,MDDMBRD 5100LD,DSS100,SB380,DSS26,SB260,MBRD5200D,MBR 1020CT,SB140,DSS28,MBRD1060D,MBR845,SK18F,SB3150,MBR720,SL54BF,MBRF 1540CT,MDDMBRD 5100LT,MBR840,MBRD5200T,SS520BF,SS310F,MBR 2050CT,DSS12,MBR 1660CT,B260B,SS28BF,SK56BF,SR340L,DSS14,SR2200,MBRD 20100D,SS58,SS215BF,MBRF 1080CT,SS55,SS56,SB05200L,DSS16,DSS15,DSS110,SB370,DSS18,SB250,SB1560L,SB130,DSS115,SL38B,SB120,SS2150,SL26B,MBR 880CT,MBRD 20100T,SS1200F,MBRD10100T,MBR830,SB5100,SB10200L,SB0580L,MBRD860D,SR3200,SK315BF,MBR 1650CT,SB05100L,SB280,SB160,B360B,MBRD545D,SS1150,MBR 890CT,SK5150,MBR745,SR3100L,MBR860,SS315HE,MBR740,SR560L,MBR 3070CT,SR2100,MBRB 2045CT,SK34BF,MBRF 1660CT,MBRF 2045CT,SB390,DSS210,SB270,MBRD5100D,SB150,B250B,SB1550L,MBR 1540CT,SB5200,MBRF 30150CT,MBRD860T,ST10100,SL15200,SL28B,MBRF 1550CT,MBRF 1070CT,MBR730,MBR850,MBRD5100T,MBRF 3080CT,MBRD545T,SR3100,MBRD 20200D,MBR 1670CT,SS38BF,MBR2030,SK24BF,MBRF 1090CT,MBRD1040T,MBR 1045CT,MBR1060,SB580,SB15150L,MBRD 20200T,ST36BF,SB330,MBRB 1060CT,SS3150,MBR 20100CT,SL35B,SL56BF,MBRD10200T,MBRD1040D,MBRB 30200CT,MBR760,SL23B,SB10100L,SK38F,MBRF 3070CT,SK26F,MBR880,SK14F,MBR 3090CT,SS26BF,SK58BF,MBR2020,MBRF 1640CT,SL310BF,SR1150,SK3200F,MBR1050,MBR 15100CT,SB570,SB560,MBRB 10100CT,SL58B,SB320,SL15100,MBRF 1530CT,MBR 1560CT,SK13F,MBR750,MBR870,MBR 10200CT,SL34B,SB0560L,SK25F,MBR1040,B380B,SR2150,SR2100L,MBR 30200CT,MBRF 1650CT,SS5150F,SL05200,MBR1045,SB360,SB240,MBRB 10200CT,SB230,MBRD540T,MBRD 10100LD,SK510F,SL25B,ST510B,SK2200F,SL34BF,MBR 1550CT,SS310BF,SK28F,SK16F,MBR780,MBRD 10100LT,MBR 20200CT,MBR1030,SK36BF,MBRD10200D,MBRB 20200CT,MBRF 2020CT,SB590,SB350,SB340,SS5200,SB220,SL36B,SL24B,MBRB 3040CT,MBR10100CT,MBR 2040CT,SK15F,MBR770,SB0550L,MBR890,SR5200,DSK215,SR540,MBR 1630CT,SS3200F,SK3150,DSK210,SS510,SS36BF,MBR2070,B5819WS,SR 1080,SB2100,SK38BF,ST34BF,MBRD540D,SR530,SR 10150,MBR1090,DSK320,MBRF 1680CT,SS24BF,MBR2060,SB3200,B50520 WS,MBR 1520CT,SL24BF,SK26BF,MBRF 3060CT,SB0540L,MBRD10150D,DSK115,SR320,SR5100,SR560,B5150B,SB1545L,DSK110,SL10150,SK810,MBRF 1690CT,MBR2050,MBR 845CT,MBR1080,MBRF 2030CT,SS52F,MBR 1040CT,SB2200,SR 1060,MBRD560T,MBRB 20100CT,SK18,SK15,SK16,SK13,SK14,SS510F,SK12,MBRB 30150CT,MBRF 3050CT,SR3150,SR550,MBR2045,SK515BF,SL2080,ST510BF,DSK220,SK2150F,SS25BF,SL510B,SR 1045,MBR2040,SK5200,MBR1070,MBRD10150T,B2200B,SR 1050,MBR 30100CT,MBR 40150CT,MBR 2080CT,MBRF 3040CT,MBRD 2060D,MBRF 1670CT,SL26BF,SB180,SS34BF,MBRF 1045CT,SK32,SK5200F,SS315BF,MBR 1530CT,B0530 WS,SK310F,MBRF 20150CT,SK38,SK35,SK36,SK33,SK34,MBR16100,SR5100L,MBRD560D,SK2150,SB290,SB170,MBRF 30200CT,MBR 1030CT,SS22BF,MBRF 2040CT,SS510BF,SB2150,MBRD 1045LT,SK28,SK28BF,SS2200F,SL2060,SK26,SK24,SK25,MBRB 3060CT,SK22,SK23,MBR 2060CT,MBRD1045LD,SK1035,SR520,DSK315,DSK310,SL510BF,MBR2090,SK1150,DSS120,SS58BF,SS35BF,MBR 820CT,SK53,SK54,SB1150,SK52,MBR820,SB0545L,MBRF 10200CT,MBR 3045CT,SL1080,MBR 2070CT,MBRF 1560CT,SL2050,SS5150,ST56BF,SK58,SK55,SK56,SK1045,DSK38,MBR 1640CT,SB1080L,SB190,MBR2080,SS23BF,SL2045,SB3100,SK1150F,MBRD8100T,DSK26,SK210BF,DSK28,MBRD 2040D,SS110,SK510,SS32BF,SS55BF,B520B,SK1010,MBRF 2050CT,MBRF 1020CT,SS2150F,SK3150F,MBRD8100D,SL20100,DSK34,MBRF 30100CT,SR140,DSK36,SL1060,SR260,DSK35,SS58F,SR380,SS34F,DSK32,SS22F,SL310B,SS320HE,MBRF 3030CT,DSK16,DSK15,DSK18,SR5150,MBR 1645CT,SK3200,MBR 1070CT,SS34HE,SK210F,SR130,DSK22,SR250,DSK25,ST54B,SR370,DSK24,SL1050,SS33F,DSL29,SK2200,MBRF 3020CT,DSL26,DSL25,SK52F,DSL28,DSL27,SS56BF,MBR 1590CT,MBR 3020CT,B510B,SS36HE,MBR7100,SS33BF,SL1045,SK110F,SR 10100,DSK12,DSK14,SS36F,SB10150L,SR
肖特基二极管的主要参数有哪些
肖特基二极管低正向电压、快速恢复时间和低功耗等特点，广泛应用于电源管理、整流、保护电路等场景。在选择肖特基二极管时，理解其主要参数对保证电路性能至关重要。
技术探讨 发布时间 : 2024-09-07
肖特基二极管的导电特性是什么？
肖特基二极管，与传统的PN结二极管相比，肖特基二极管具有独特的导电特性，包括低正向压降、高切换速度和低反向恢复时间等。那么，肖特基二极管的导电性是什么？本文为你介绍。
技术探讨 发布时间 : 2024-02-19
MDD肖特基二极管四大特性
MDD辰达半导体肖特基二极管是重要的电子元器件，因为其承载着保护电路的重要作用，所以显得格外的不可或缺，本文将带你一起去探索神秘的肖特基二极管特性。
技术探讨 发布时间 : 2023-11-07
肖特基二极管损坏如何判断？
肖特基二极管低正向压降和快速开关特性而广泛应用，尤其在电源管理和高频电路中。然而，由于其结构特点和应用环境，肖特基二极管也可能会遭受损坏。那么，肖特基二极管损坏如何判断？本文中辰达行来为大家介绍判断肖特基二极管是否损坏的方法，希望对各位工程师朋友有所帮助。
技术探讨 发布时间 : 2024-08-30
【技术】解析肖特基二极管沟槽工艺与平面工艺的区别
MDD品牌平面肖特基二极管具有优异的高频特性和较低的正向开启电压，这些独特的性质使得其在太阳能电池、开关电源、汽车以及手机等多个领域都有着巨大的应用潜力。那么肖特基二极管沟槽工艺与平面工艺有什么区别呢？本文辰达行将为您进行介绍。
技术探讨 发布时间 : 2023-06-09
肖特基二极管如何在电源电路中发挥作用？
肖特基二极管因其独特的电特性，在电源电路中扮演着不可或缺的角色。其快速的开关速度、低正向电压降以及良好的温度稳定性使其成为电源电路设计中的理想选择。在不断发展的电子领域中，深入理解肖特基二极管的工作原理和应用，对于提高电源电路的性能和效率至关重要。
设计经验 发布时间 : 2023-12-22
肖特基二极管该如何正确的选用？
肖特基二极管低正向压降和快速开关特性，广泛应用于电源管理、开关电源、续流电路以及高频整流等领域。肖特基二极管该如何正确的选用？本文中辰达行来为大家介绍，希望对各位工程师朋友有所帮助。
技术探讨 发布时间 : 2024-08-30
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可定制单色光灯珠、双色灯珠、全彩灯珠、发光二极管、贴片灯珠、贴片LED等产品，尺寸：0.6*0.3mm-3.2*2.7mm，波长：405-940nm，亮度：24-750mcd，电压：1.5-3.5V。
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