【应用】Vrwm为15V!这款保护器件大幅度超出ESD标准
【摘要】RS-232作为一种常用的短距离传输通道,使用较为频繁,需要保护器件加以保护。SM15-02HTG、的Vrwm为15V,满足RS-232通讯的电压要求范围。并且通过IEC61000-4-2,±30kV 接触放电, ±30kV 空气间隙放电等。其大幅度超出ESD测试标准,具有更强的保护能力,而且设计简单。
RS-232是一种较早提出的通讯协议,目前有许多设备还在沿用RS-232接口通讯,如打印机、考勤机、工业通讯模块等。RS-232作为一种常用的短距离传输通道,使用较为频繁,往往会受到过电压、过电流的冲击,更有可能会感应到雷击强电磁电殒干扰,从而导致接口芯片损坏。
因此,为了保护接口芯片,RS-232接口需要满足相关的ESD保护标准。欧洲共同体规定,必须通过所有相关的ESD测试标准:
• ±15kV ESD人体模式测试标准
• ±8kV ESD IEC61000-4-2接触放电模式测试标准
• ±15kV ESD IEC61000-4-2空气间隙放电模式测试标准
• ±4kV ESD IEC61000-4-4电气快速瞬变/猝发模式测试标准
RS-232接口芯片的输出电压一般为±9V,最大不超过±12V,芯片最高损坏电压是30V。因此,保护电路处理完后的电压应该小于30V,但必须大于12V。
力特公司作为全球顶级的电路保护器件生产商,专门为RS-232接口防护推出保护器件SM15-02HTGG。SM15-02HTGG的Vrwm为15V,满足RS-232通讯的电压要求范围。并且通过IEC61000-4-2,±30kV的接触放电, ±30kV的空气间隙放电;IEC61000-4-4,50A(5/50ns);IEC61000-4-5,12A (tp=8/20μs)。其大幅度超出ESD测试标准,具有更强的保护能力,而且设计简单,可参考下图设计:
图1 SM15-02HTGG参考设计图
SM15-02HTGG参数:
- |
- +1 赞 0
- 收藏
- 评论 0
本网站所有内容禁止转载,否则追究法律责任!
相关推荐
【应用】通过双标准认证保护器件,给RJ45接口穿上“防弹衣”
SLVU2.8-4满足IEC61000-4-2和IEC61000-4-5标准,结电容C<2pF。
【选型】RS-485接口的防雷设计电路,该如何选择保护器件?
本文介绍使用力特公司的气体放电管、PPTC和TVS来设计防雷电路,有效保护RS-485总线。
LITTELFUSE General Purpose ESD Protection TVS Diode Array选型表
Littlfuse瞬态抑制二极管阵列可保护电子设备免受雷击和静电放电(ESD)等快速瞬态电压的破坏,为输入/输出接口和数字与模拟信号线提供理想的保护方案。
产品型号
|
品类
|
AEC-Q101 Qualified
|
Standoff Voltage (V)
|
ILeak (μA)
|
ESD Contact (kV)
|
ESD Air (kV)
|
Lightning Immunity (8x20μs) (A)
|
Clamp Voltage
|
CI/OTYP (pF)
|
Polarity
|
Channels
|
MIN VBR@IT (V)
|
Operating Temperature(℃)
|
Package
|
SC1006-01LTG
|
TVS Diode Arrays
|
No
|
6
|
0.5
|
±30
|
±30
|
5
|
8.3V@1A
|
25
|
Unidirectional
|
1
|
N/A
|
-40° to 125°C
|
SOD523
|
选型表 - LITTELFUSE 立即选型
Littelfuse(力特) 连接器&保护器件快速参考指南
型号- LVR100K-240-AP,SESD,RF2943-000,LVR,TM2P-10271-2,2PRO,LVR016S,LVR125S,SESD0802Q4UG-0020-090,LVR012K-2,PESD,LVR200K-240-AP,LVR012S-1,LVR012S-2,RF2945-000,SESD0201X1BN-0015-096,LVR016K,LVR008NS,LVR033K-2,LVR075S-240,RF3923-000,PESD0402-240,LVR100S-240-AP,SESD1004Q4UG-0030-088,LVR008NK,LVR033S-2,LVR125K-240,SESD0402Q2UG-0030-088,RF3917-000,LVR055K,LVR200K-240-2,LVR100S-240,SESD0201X1UN-0030-088,LVR100S,RF3076-000,LVR055S,RF2193-000,SESD1103Q6UG-0020-090,PESD0603-240,LVR100K-240-2,LVR125K-240-2,LVR200S-240-AP,LVM2P-035R14431,SESD0402X1UN-0030-088,LVM2P-015R10431,RF3920-000,LVR200S,RF3078-000,LVR008NS-1,LVR008NS-2,SESD0201X1BN-0010-098,LVM2P-075R14431,LVR100S-240-2,LVR008NK-2,LVR005NS,RF3925-000,LVR005NK,LVR033K,SESD0402Q2UG-0020-090,TM2P-10271,SESD1004Q4UG-0020-090,LVR200S-240,LVR033S,LVR040S-1,LVR100K-240,LVR200K-240,LVR040S-2,RF3918-000,LVR075K-240-2,LVR125S-240-2,SESD0402X1BN-0015-096,PESD1206Q-240,LVR025K-2,LVR040K,LVR012K,LVR025S-2,LVR040S,LVR040K-2,LVR012S,SESD0402X1UN-0020-090,LVR016S-2,LVR016S-1,LVR075S-240-2,LVR016K-2,LVR125S-240,RF3077-000,LVR075K-240,LVR075S-240-AP,LVR075S,LVR075K-240-AP,RF3922-000,LVR005NK-2,SESD0402X1BN-0010-098,RF2192-000,LVR055S-1,LVR075S-1,LVR055S-2,LVR075K-1,LVR005NS-1,LVR005NS-2,LVR125K-240-AP,LVR125S-240-AP,RF2946-000,LVR200S-240-2,PESD0402-140,LVR025K,SESD0201X1UN-0020-090,LVR025S
Littelfuse(力特) 最专业最齐全的全球领先保护器件
型号- 1.5SMC540CA,SMBJ,1812L,SMBJ8.5CA,5KP200A,SMBJ51A,SMBJ75A,SMBJ70CA,SG75,SL1411A600A,PLED 5 QFN,5KP40A,5KP64A,AC,1812L020PR,SMBJ40A,SMBJ17CA,SMBJ64A,1.5SMC200CA,1.5SMC36CA,5KP18CA,1.5SMC13CA,5KP51A,5KP75A,SMBJ160CA,0312005.MXP,0456040.DR,5KP8.5CA,K1500GRP,1812L110/33MR,SMBJ85A,SMBJ28CA,5KP160CA,CG3,K2200G,5KP78A,1.5SMC510A,60R110XU,5KP,5KP28CA,SMBJ300A,5KP30A,CG35.0,5KP54A,SMBJ150CA,MDCG-4,1206L012WR,1206L110WR,1.5SMC8.2CA,SMBJ16CA,1812L150/12DR,5KP70CA,5KP17CA,CG35.0LTR,5KP180CA,CG32.0,K1100GRP,5KP60A,1.5SMC7.5CA,SMBJ170CA,1.5SMC27CA,SMBJ400A,K1200E70,1.5SMC91CA,SMBJ60A,SMBJ15CA,1.5SMC180CA,1.5SMC400A,5KP16CA,1.5SMC15CA,1.5SMC9.1CA,1.5SMC6.8CA,SL1411A800A,SMBJ26CA,SMBJ400CA,1.5SMC300A,60R050X,60R,5KP26CA,SMBJ90CA,1.5SMC300CA,SL1411A800,1.5SMC530CA,60R010XU,SMBJ70A,SMBJ14CA,1.5SMC530A,5KP170CA,60R075X,60R160X,5KP15CA,5KP85A,1.5SMC16CA,1.5SMC39CA,SM24CANA-02HTG,60R090XPR,1.5SMC82CA,SMBJ48CA,60R300X,1.5SMC200A,5KP12A,5KP36A,5KP24A,5KP48A,1.5SMC36A,1.5SMC24A,1.5SMC12A,0452002.,5KP48CA,5KP200CA,1.5SMC510CA,K2200SRP,SMBJ130CA,SM24CANA,5KP6.5CA,5KP90CA,1.5SMC11A,SMBJ13CA,1.5SMC540A,5KP190CA,SMBJ36CA,5KP11A,1.5SMC47A,0456030.ER,1812L075/33DR,5KP14CA,SL1411A,048502.5,SMBJ24CA,1.5SMC440A,1812L050PR,5KP14A,1.5SMC170CA,5KP26A,CG31.5LTR,CG31.5,5KP24CA,SMBJ90A,SMBJ12CA,1.5SMC400CA,1.5SMC550A,SMBJ58CA,5KP13A,SMBJ188CA,1.5SMC13A,SMBJ350CA,0452001.,1.5SMC18CA,5KP8.0CA,5KP13CA,5KP36CA,AC120,SMBJ5.0A,1.5SMC220A,1812L150/24,0312.062MXP,048502.5DR,K2400G,SMBJ180A,1.5SMC16A,312,SL1411A470A,1.5SMC150CA,5KP20A,1206L035YR,045803.5,1206L050/15YR,5KP100CA,SMBJ11CA,1.5SMC100A,V05E17P,SL1411A090,5KP7.5CA,1.5SMC39A,1.5SMC27A,1.5SMC15A,5KP190A,K1500SRP,5KP210CA,K1500E70,0452007.,5KP12CA,5KP58CA,5KP43A,1.5SMC62CA,SMBJ22CA,SMBJ45CA,CG32.0LTR,452,5KP22A,1.5SMC18A,5KP58A,SMBJ170A,SMBJ10CA,456,458,LV ULTRAMOV,K1500,1206L150PR,60R090X,5KP22CA,5KP45CA,5KP10A,K1200G,5KP5.0A,CG31.01,1812L200DR,SMBJ6.0A,1.5SMC110A,SMBJ33CA,SMBJ250CA,5KP45A,1206L150THWR,5KP33A,5KP9.0CA,5KP180A,5KP11CA,SL1411A350A,1.5SMC160CA,0452005.,SMBJ5.0CA,5KP6.0A,60R110XMR,SMBJ220CA,1.5SMC250CA,1.5SMC480CA,5KP110CA,60R075XPR,045602.5,SMBJ160A,0456030.,1812L200THPR,5KP6.0CA,1.5SMC51CA,K2200GRP,1.5SMC120A,1.5SMC75A,SMBJ78CA,1.5SMC51A,SG300,1.5SMC350A,60R110X,5KP10CA,SMBJ43CA,5KP170A,SMBJ20CA,1.5SMC9.1A,1812L110,5KP33CA,0458007.DR,SMBJ7.0A,1.5SMC30A,1.5SMC480A,1.5SMC,1206L160ZR,1.5SMC250A,TMOV25SP115E,5KP20CA,5KP43CA,SMBJ54CA,SG,SMBJ18A,1812L075/24DR,5KP220CA,1812L010DR,0456040.,1206L200,SMBJ150A,1206L050YR,1.5SMC75CA,60R160XF,0458007.,0452007.MRL,SMBJ6.0CA,1.5SMC130A,5KP160A,K2000F1,SMBJ100CA,1.5SMC7.5A,1.5SMC8.2A,1812L050/30PR,1.5SMC6.8A,5KP78CA,0452001.MRL,0456020.ER,1.5SMC20A,SMBJ6.5A,5KP7.0CA,5KP16A,SMBJ16A,SMBJ30CA,1.5SMC68A,5KP28A,SMBJ28A,1.5SMC56A,5KP6.5A,1812L200,SMBJ188A,K1200,5KP7.0A,SMBJ8.0A,1.5SMC30CA,1.5SMC43A,5KP150A,SMBJ440CA,5KP54CA,SMBJ64CA,60R300XF,5KP15A,K2400,SMBJ17A,1812L300MR,1.5SMC350CA,1206L110,SMBJ250A,SMBJ120CA,1.5SMC43CA,5KP8.0A,1.5SMC20CA,1.5SMC22A,1.5SMC10A,5KP250A,5KP64CA,SMBJ14A,SMBJ75CA,SMBJ26A,5KP18A,1812L300,0456020.,SMBJ110CA,0458001.,SMBJ7.0CA,K1100,SMBJ130A,1.5SMC130CA,0312002.MXP,SL1411A470,SL1411A350,1206L016,SMBJ7.5A,1.5SMC33A,5KP120CA,1.5SMC150A,SMBJ40CA,5KP30CA,SMBJ15A,5KP17A,1206L012,1206L075/13.2WR,K1500G,SMBJ9.0A,045803.5DR,0312035.MXP,SMBJ12A,SMBJ51CA,60R185X,5KP40CA,SMBJ36A,SMBJ24A,SMBJ48A,0452002.MRL,MDSR-10,SMBJ350A,1.5SMC110CA,SMBJ120A,1.5SMC91A,TMOV25S,SMBJ6.5CA,60R030XU,5KP130A,0312002.,1.5SMC160A,5KP75CA,1206L150,SMBJ13A,SMBJ85CA,K2200,1206L035,5KP7.5A,0456025.,1812L075,5KP250CA,SMBJ8.0CA,K2400SRP,1.5SMC22CA,SMBJ8.5A,0452005.MRL,5KP130CA,1.5SMC82A,60R030X,1206L160,SMBJ22A,60R250XF,5KP85CA,SMBJ58A,K2400E70,5KP70A,SMBJ110A,5KP8.5A,1.5SMC68CA,SL1411A600,SMBJ300CA,1.5SMC170A,1.5SMC33CA,1.5SMC10CA,1206L075THYR,5KP9.0A,5KP120A,1206L016WR,SMBJ10A,1206L050,1812L050,0456025.ER,5KP51CA,SMBJ11A,0312005.,SMBJ220A,SMBJ180CA,1.5SMC56CA,1.5SMC120CA,KXXXZY,1206L,K2000E70RP3,SMBJ43A,5KP220A,SMBJ7.5CA,1.5SMC440CA,60R250X,0458001.DR,SMBJ100A,1.5SMC550CA,1.5SMC180A,1.5SMC11CA,5KP5.0CA,5KP110A,SMBJ20A,5KP150CA,SMBJ45A,SMBJ33A,K2000,SMBJ9.0CA,1206L200PR,SMBJ60CA,0458001.DRA,1.5SMC100CA,1206L075,1812L150,SMBJ440A,5KP90A,0312035.,1.5SMC62A,SMBJ200CA,5KP210A,SM24CANA-02,SMBJ78A,60R010X,5KP60CA,60R050XPR,1.5SMC47CA,1.5SMC24CA,1812L020,60R185XF,SL1411A090C,0312.062,SMBJ30A,SMBJ18CA,1.5SMC220CA,5KP100A,SMBJ54A,0312.187,1812L110/16DR,SMBJ200A,1.5SMC12CA,1812L010
【产品】Littelfuse符合UL和CSA认证的LRU系列保险丝减压器,适用于通信设备、工业电子、汽车电子等
Littelfuse推出的LRU系列保险丝减压器,允许将较小尺寸的保险丝安装到现有的保险丝夹中,以防止过度熔断,广泛应用于通信设备、工业电子、汽车电子、消费电子等领域。
Littelfuse(力特) 电路保护器件在无人机的应用
描述- 适用于无人机的Littelfuse(力特)保护方案
型号- SP1005,SMAJ,SM05-02HTG,SP1005-01,2920L300/15DR,SM05-02,SP1005-01ETG,SP3022-01,SM,SP3022-01ETG,2920L300,SP3022,2920L,SMAJ18CA
以太网接口RJ45的静电防护选什么类型的保护器件较好?
在以太网接口上速率比较高,电平为差分,最大不会超过5V,一般是3.3V左右,因此SP3002-4瞬态抑制二极管阵列比较适合,它的结电容为0.85pF(比较低),反向工作电压为6V,EDS等级为12KV的接触放电。
用在RS-232接口上,请推荐一款能起到静电保护的器件。
推荐SM15-02HTG,VR为15V,专为RS-232设计,采用1,2脚接法,形成双向TVS管,能够起到静电保护作用。
广电EOC设备上需要SLIC保护器件,其要求为:SO8封装、峰值电压160V。请问有什么推荐型号?
推荐型号为P1701DF-1E的SLIC专用保护器件,其规格为:SO8封装、峰值电压160V。满足应用要求。
在射频卡RFID读写的天线端如何选用合适的TVS阵列保护器件?
在射频卡天线设计上,因为要考虑到天线的辐射频率以及基带信号不能损失,一般要选用结电容小的TVS阵列,这样对信号不会构成影响,同时,在静电和浪涌时能快速响应。SP30xx系列的TVS阵列非常适合应用于此类场合。
请推荐工作电压小于3.3V, 最低钳位电压为5~6V的ESD保护器件。
推荐Littlefuse的SMF3.3系列TVS,工作电压3.3V,钳位电压6.8V,符合 IEC61000-4-2标准。如有更多选型要求请参考Littelfuse 过压抑制保护器件选型指南,下载地址:http://www.sekorm.com/doc/43450.html
大通流量TVS AK6系列做防雷设计需要另外再加保护器件吗?
大通流量TVS AK6系列在做防雷设计时,必须要加一个熔丝串在回路中做保护,以防止短路对TVS的损坏。
电子商城
现货市场
服务
可定制射频隔离器/环行器(10M-40GHz),双工器/三工器(30MHz/850MHz-20GHz),滤波器(DC-20GHz),功分器,同轴负载,同轴衰减器等射频器件;可定制频率覆盖DC~110GHz,功率最高20KW。
最小起订量: 1 提交需求>
测试等级:空气放电30KV±5%;接触放电30KV±5%,适用标准:GB/T 17626.2、IEC61000-4-2、ISO10605、GB/T 19951;给用户产品出电路保护设计方案建议及整改。点击预约,支持到场/视频直播测试,资深专家全程指导。
实验室地址: 深圳/上海 提交需求>
登录 | 立即注册
提交评论