维安推出175℃结温车规级TVS,持续提升产品竞争力
TVS(Transient Voltage Suppressor)即瞬态电压抑制器,又称雪崩击穿二极管,是在稳压管的工艺基础上发展而来的一种新产品,其外形及电路符号都与普通的二极管无异。
其常并联于被保护系统的前级,当电路正常工作时,TVS处于截至状态(高阻态),不影响电路工作。当电路出现异常过电压并达到TVS(雪崩)击穿电压时,TVS迅速由高阻态突变为低电阻状态,将异常过电压导致的瞬时过电流泄放到地,同时把异常过电压钳制在较低的水平,从而保护后级被保护系统免遭异常过电压的损坏,当异常过电压消失后,TVS阻值又恢复为高阻态。
图1:TVS二极管工作原理
工欲善其事,必先利其器,要用好TVS,必须先了解其关键的参数,特别是车用TVS。
汽车穿梭在城市、山野田间,需要承受高温、寒冷和潮湿等复杂环境,故TVS有时候需要在恶劣的温度下工作,对结温要求较高。另外其反向漏电流IR随温度升高而增大;反向峰值脉冲功率PPPM随结温增加而下降,从+25℃上升到+175℃,功率约降低50%以上。TVS额定结温决定了其能够承受的最大工作温度,高结温可以保证TVS二极管在高温下正常工作并减少故障发生率。
TVS二极管失效时间与温度的关系可由阿伦尼斯经验方程得出:
(式一)
式中:AT为不同温度下元器件失效时间比值;Ea为激活能(eV);Kb为波尔兹曼常数(eV/K);t1为温度T1下的元器件失效时间(h);t2为温度T2下的元器件失效时间(h),由公式可知,二极管的芯片温度每升高10℃,芯片的可靠性降低50%,传统Si 半导体在温度超过了175℃时就有可能损坏。
随着电子技术的发展,TVS二极管的材料和制造工艺不断得到改进,维安在不影响器件寿命以及保证器件低故障率的条件下,成功开发了具有175℃结温的TVS产品系列。
图2:维安175℃结温TVS二极管外观图
该系列产品在封装上引入了许多特殊设计,同时在芯片工艺流程和版图上也进行了针对性的优化。
以器件WS58P6SMB-BHT-AT为例,型号中-B代表器件为双向器件,HT代表高结温(Tj=175℃)系列,-AT表示其已经通过AEC-Q101认证,可以用于车载,图2为该器件的外观,封装类型为DO-214AA。
维安175℃结温TVS二极管系列目前共计约118种规格型号,表1为型号汇总表。产品均采用常温与高温热测试相结合的测试方法,对高温漏电进行了完整评估。
表1:维安175℃结温TVS二极管型号汇总
175℃结温的TVS二极管的成功研发是维安在电路保护产品领域一个新的里程碑,也将极大地拓展维安电路保护产品的应用范围和应用场景。
未来,未来维安将持续致力于产品研发,不断提升其性能表现,并通过完善的质量管理体系和客户服务标准赋能终端用户需求,持续提升产品竞争力。
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本文由星晴123转载自WAYON(维安)微信公众号,原文标题为:提升安全,维安175℃ 结温车规级TVS更给力,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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应用方案 发布时间 : 2023-01-30
SMAF6J5.0(C)A-T THRU SMAF6J350A-T Automotive Transient Voltage Suppressors
型号- SMAF6J43CA-T,SMAF6J78CA-T,SMAF6J12A-T,SMAF6J64A-T,SMAF6J17CA-T,SMAF6J170A-T,SMAF6J33CA-T,SMAF6J58A-T,SMAF6J51CA-T,SMAF6J8.0CA-T,SMAF6J350A-T,SMAF6J15A-T,SMAF6J100A-T,SMAF6J26A-T,SMAF6J190A-T,SMAF6J250A-T,SMAF6J120A-T,SMAF6J70A-T,SMAF6J10CA-T,SMAF6J78A-T,SMAF6J14A-T,SMAF6J22CA-T,SMAF6J48CA-T,SMAF6J20A-T,SMAF6J110CA-T,SMAF6J85A-T,SMAF6J43A-T,SMAF6J12CA-T,SMAF6J20CA-T,SMAF6J5.0A-T,SMAF6J90A-T,SMAF6J220A-T,SMAF6J120CA-T,SMAF6J180CA-T,SMAF6J150CA-T,SMAF6J40A-T,SMAF6J160A-T,SMAF6J6.5A-T,SMAF6J48A-T,SMAF6J28A-T,SMAF6J51A-T,SMAF6J200A-T,SMAF6J9.0CA-T,SMAF6J17A-T,SMAF6J14CA-T,SMAF6J16A-T,SMAF6J18CA-T,SMAF6J7.0A-T,SMAF6J180A-T,SMAF6J60CA-T,SMAF6J45A-T,SMAF6J26CA-T,SMAF6J22A-T,SMAF6J60A-T,SMAF6J85CA-T,SMAF6J190CA-T,SMAF6J8.0A-T,SMAF6J54A-T,SMAF6J16CA-T,SMAF6J6.5CA-T,SMAF6J11CA-T,SMAF6J24CA-T,SMAF6J11A-T,SMAF6JXXXCA-T,SMAF6J6.0A-T,SMAF6J9.0A-T,SMAF6J54CA-T,SMAF6J36CA-T,SMAF6J70CA-T,SMAF6J110A-T,SMAF6J170CA-T,SMAF6J7.0CA-T,SMAF6J36A-T,SMAF6J40CA-T,SMAF6J130A-T,SMAF6J6.0CA-T,SMAF6J30CA-T,SMAF6J300A-T,SMAF6J8.5A-T,SMAF6J24A-T,SMAF6J210A-T,SMAF6J13CA-T,SMAF6J160CA-T,SMAF6J8.5CA-T,SMAF6J75A-T,SMAF6J33A-T,SMAF6J10A-T,SMAF6J64CA-T,SMAF6J7.5A-T,SMAF6J90CA-T,SMAF6J18A-T,SMAF6J200CA-T,SMAF6J13A-T,SMAF6J150A-T,SMAF6J7.5CA-T,SMAF6J45CA-T,SMAF6J5.0CA-T,SMAF6J58CA-T,SMAF6J15CA-T,SMAF6J28CA-T,SMAF6J130CA-T,SMAF6J30A-T,SMAF6J100CA-T,SMAF6J75CA-T
PANJIT(强茂)汽车和高可靠性E-type TVS(瞬态电压抑制器)选型指南
目录- Product Introduction Automotive and High Reliability TVS
型号- P6AFC60A-AU,P1CH24A-AU,P1CH5.0A-AU,P4FL51A-AU,P6AFC6.5A-AU,P4FL8.5A-AU,P2AL36A-AU,P6AFC18A-AU,P4FL43A-AU,P4FL6.0A-AU,P2AL7.0A-AU,P2AL28A-AU,P6AFC26A-AU,P2AL26A-AU,P2AL18A-AU,P1CH8.0A-AU,P2AL3.3A-AU,P4FL17A-AU,P1CH16A-AU,P6AFC16A-AU,P6AFC7.0A-AU,P1CH30A-AU,P4FL10A-AU,P4FLXXA-AU,P1CH26A-AU,P2AL6.5A-AU,P6AFC28A-AU,P6AFC3.3A-AU,P2AL16A-AU,P6AFC14A-AU,P1CH14A-AU,P2AL22A-AU,P4FL12A-AU,P2AL30A-AU,P2AL15A-AU,P1CH28A-AU,P2AL13A-AU,P1CH7.0A-AU,P1CH8.5A-AU,P2AL6.0A-AU,P4FL14A-AU,P4FL5.0A-AU,P6AFC8.5A-AU,P2ALXXA-AU,P4FL6.5A-AU,P2AL7.5A-AU,P4FL48A-AU,P4FL22A-AU,P6AFC12A-AU,P6AFC64A-AU,P1CH12A-AU,P1CH6.0A-AU,P4FL7.5A-AU,P2AL11A-AU,SMF5.0A,P2AL24A-AU,P6AFC7.5A-AU,P4FL20A-AU,P1CH36A-AU,P4FL33A-AU,P6AFC36A-AU,P4FL16A-AU,P1CH10A-AU,P1CH7.5A-AU,P2AL8.5A-AU,P6AFC40A-AU,P6AFC10A-AU,P6AFC6.0A-AU,P4FL26A-AU,P6AFC43A-AU,P4FL18A-AU,P1CH15A-AU,P6AFC8.0A-AU,P4FL60A-AU,P1CH17A-AU,P6AFC17A-AU,P1CH33A-AU,P2AL10A-AU,P6AFC51A-AU,P2AL20A-AU,P4FL40A-AU,P4FL7.0A-AU,P6AFC33A-AU,P2AL33A-AU,P6AFC5.0A-AU,P6AFC20A-AU,P4FL36A-AU,P2AL17A-AU,P2AL8.0A-AU,P1CH6.5A-AU,P6AFC15A-AU,P1CH13A-AU,P4FL3.3A-AU,P6AFC58A-AU,P6AFC45A-AU,P4FL54A-AU,P4FL11A-AU,P1CH3.3A-AU,P2AL5.0A-AU,P4FL24A-AU,P2AL9.0A-AU,P4FL8.0A-AU,P6AFC22A-AU,P6AFC48A-AU,P6AFC30A-AU,P4FL30A-AU,P1CH11A-AU,P4FL64A-AU,P6AFC13A-AU,P1CH20A-AU,P4HEXXA-AU,P2AL40A-AU,P4FL13A-AU,P2AL14A-AU,P1CH18A-AU,P4FL45A-AU,P4FL15A-AU,P6AFC54A-AU,P4FL58A-AU,P4FL9.0A-AU,P1CH22A-AU,P6AFC24A-AU,P6AFC11A-AU,P6AFCXXA-AU,P6AFC9.0A-AU,P4FL28A-AU,P1CHXXA-AU,P1CH9.0A-AU,P2AL12A-AU,P2AL5.0A
【应用】6600W峰值脉冲功率的车规级TVS用于24V系统汽车电子过压防护
优恩半导体车规级TVS管5KP33AS用于24V系统汽车电子过压防护,产品遵照TS16949质量系统,满足汽车专用测试最新标准ISO7637-2、ISO16750-2的测试需求,可确保所有设计、开发、制造与安装的组件符合最高等级的汽车标准。
应用方案 发布时间 : 2021-04-27
P4KExx(C)A-T Series Automotive Transient Voltage Suppressor
型号- P4KE15CA-T,P4KE600CA-T,P4KEXXCA-T,P4KE8.2A-T,P4KE150A-T,P4KE130CA-T,P4KE120CA-T,P4KE82CA-T,P4KE33CA-T,P4KE16A-T,P4KE130A-T,P4KE480A-T,P4KE39A-T,P4KE68CA-T,P4KE22A-T,P4KE110CA-T,P4KE250A-T,P4KE68A-T,P4KE43A-T,P4KE110A-T,P4KE300CA-T,P4KE11A-T,P4KE540A-T,P4KE440CA-T,P4KE250CA-T,P4KE36A-T,P4KE51A -T,P4KE6.8CA-T,P4KE10CA-T,P4KE400CA-T,P4KE350A-T,P4KE180A-T,P4KE150CA-T,P4KE20CA-T,P4KE12CA-T,P4KE440A-T,P4KE10A -T,P4KE56A-T,P4KE20A-T,P4KE62A-T,P4KE530CA-T,P4KE82A-T,P4KEXXA-T,P4KE27CA-T,P4KE160A-T,P4KE9.1A -T,P4KE200A-T,P4KE8.2CA-T,P4KEXXA-T SERIES,P4KE75CA-T,P4KE400A-T,P4KE350CA-T,P4KE24CA-T,P4KE91CA-T,P4KE300A-T,P4KE12A-T,P4KE180CA-T,P4KE510CA-T,P4KEXXXCA-T,P4KE16CA-T,P4KE200CA-T,P4KE220A-T,P4KE170CA-T,P4KE120A-T,P4KE47CA-T,P4KE550A-T,P4KE6.8A-T,P4KE47A-T,P4KE22CA-T,P4KE18CA-T,P4KE36CA-T,P4KE220CA-T,P4KE15A-T,P4KE91A-T,P4KE530A-T,P4KE7.5CA-T,P4KE100CA-T,P4KE550CA-T,P4KE27A-T,P4KE160CA-T,P4KE11CA-T,P4KE100A-T,P4KE600A-T,P4KE33A-T,P4KE540CA-T,P4KE7.5A-T,P4KE9.1CA-T,P4KE18A-T,P4KE75A-T,P4KE51CA-T,P4KE39CA-T,P4KE24A-T,P4KE480CA-T,P4KE170A-T,P4KE43CA-T,P4KE510A-T,P4KE30CA-T,P4KE56CA-T,P4KE13CA-T,P4KE13A-T,P4KE30A-T,P4KE62CA-T,P4KEXXCA-T SERIES
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提供稳态、瞬态、热传导、对流散热、热辐射、热接触、和液冷等热仿真分析,通过FloTHERM软件帮助工程师在产品设计初期创建虚拟模型,对多种系统设计方案进行评估,识别潜在散热风险。
实验室地址: 深圳 提交需求>
可定制DC风扇的尺寸范围:15mm~225mm;转速:≤16500 RPM;噪音:≥10.4dB,还可定制厚度、电压、风量、风压等参数,符合 RoHS 标准。
最小起订量: 1 提交需求>
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