【应用】国产ESD SM712用于伺服系统RS485接口通讯防护，采用SOT23封装，峰值脉冲功率400W

时间： 2022-11-10 来源：世强

技术问答

在伺服系统中，需要将检测到的伺服电机的速度信号、电流信号等传输到上位机中，便于对伺服系统状态的实时监测，本文将介绍国产ESD硕凯SM712用于伺服系统RS485接口通讯防护，有效提高传输信号的稳定性。

国产硕凯SM712并联在RS485收发器和RS485总线上，MCU上通过UART接口将数字信号传输到RS485收发器芯片，RS485收发器将该信号转换成RS485通讯协议的格式然后输出到RS485总线上，硕凯的SM712可以有效的抑制瞬态高压，提高系统的稳定性。

硕凯SM712具有如下优势：

1．单颗集成两路的ESD，可以保护-7V到+12V的电路，集成度更高。

2．峰值脉冲功率400W，但信号线上峰值脉冲功率高于400W时，其可以迅速将电流导到地中防止信号线损坏。

3．75pf结电容大小，在电流瞬间增大时，其可以迅速将内部结电容充满使管子导通，保护信号线上数据。

综上所述，硕凯SM712非常适合应用于伺服系统RS485接口通讯防护。

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目录- 公司简介 GDT陶瓷气体放电管 TVS瞬态抑制二极管 ESD静电保护元件 TSS半导体放电管 MLV贴片压敏电阻高分子ESD MOV压敏电阻 SPG强效放电管 PPTC自恢复保险丝贴片磁珠贴片电感

型号- 40D271K,P4SMA16A,SMAJ6.0CA,SMAJ40CA,SC3E6-300MM,SC30 SERIES,30KPA170CA,SMF10CA,KD-012,SCF035-30-1206R,SC2E6-350LSMD,5.0SMDJ170A,SCF1210,8.0SMDJ24A,SC3E5-600LM,SMDJ78CA,RCF300-1812R,SC3E8-150HMF,KD-015,SCGB-H SERIES,KD-025,KD-020,SCGB1005-B SERIES,SCF1206,5.0SMDJ300CA,SC3E6-420MM,1.5SMC13CA,SMCJ14CA,P4SMA18A,TH8S15CA,SCPB4516S600WTF,5.0SMDJ85A,SC2E8-2500LL,P4SMA16CA,SC2E8-250HL,SMCJ100CA,SC2E8-1600LL,20KPA48CA,53D112K,34S210K/40,SMBJ300A,5KP30A,SMF120CA,SMBJ150CA,SMDJ170A,8.0SMDJ26A,SCPB1608S301NPF,SMAJ70A,P4SMA520A,53D681K,SCF050-24-1206R,3KP80CA,SMDJ58A,32D122K,SA48CA,SMCJ30A,SC2H8-5000LL,SCGB1608H200HPF,SCGB1608H301EPF,SA180A,SCPB1068W471LPF,SMF190A,SA22CA,SCF110-1812,P6KE8.2CA,SMAJ100A,SC250-600,8.0SMDJ20A,SCF160-16-1812R,P4KE180A,5.0SMDJ170CA,SC2E8-250ML,SA110CA,30KPA54CA,P4SMA82CA,SC3E5-230LM,SMF3.3A,SMDJ54A,30KPA198A,SMDJ160CA,3KP14CA,20KPA180A,SMBJ400CA,5KP SERIES,SMF36CA,SCPB2012W221NPF,SMCJ80CA,SCF260-1812R,SCWL201610G-2R2ML,SC600,PXXXXLB,PXXXXLC,PXXXXLA,P6SMB51CA,P4KE22CA,53D241K,SMCJ220CA,8.0SMDJ22A,32D561K,SCPB4532S601QTF,SCWL201610H SERIES,TH8S28CA,15KPA40CA,5.0SMDJ80A,P4KE SERIES,1.5KE51A,SM6S SERIES,1.5SMC39CA,SM6S12A,SC3E8-800H,SC2E5-420LL,P6SMB,SA70CA,1.5KE36CA,SCF0805 SERIES,1.0SMBJ,TH8S33CA,15KPA100A,5KP36A,SCF150-1812R,SCA-601M,P6SMB16A,30KPA,SMAJ18CA,SA17CA,1.5KE170CA,SM6S11A,5KP90CA,SMF,SMDJ51A,3KP45CA,3KP140CA,P4SMA170A,TH8D33CA,P6SMB15A,SCGB3216S121丨TF,P4SMA10A,3KP58CA,SCGB3216S122HTF,1.5KE56A,SC2E8-75HSMD,1.5SMC440A,P6SMAJ,SC2E5-2700DL,SC2E6-90LSMD,SM6S14A,P6SMB520A,SA5.0CA,SCF160-1812,SM2KBF SERIES,SC2E5-300LL,5KP24CA,SCML2016G4R7MBE,SC2K8 SERIES,P6SMB16CA,P4SMA11A,SM6S13A,P6KE500A,SMBJ90A,SMF64A,SCPB2012S400RPF,SMBJ12CA,P6SMB13A,P4SMA12A,SCPB3216W121QTF,PXXXXSA SERIES,SM6S16A,SC2E8 SERIES,SC2E6-600LSMD,SC1812-420CSMD,P6SMB12A,TH8D20CA,SCF012-1206R,32D911K,P4SMA13A,SC2E6-420LSMD,P6KE180CA,P6SMB10A,SCGB2012S301HPF,SM6S15A,P4SMA47CA,SCML2012H2R2M05BP,P6SMB11A,KA-190,25D SERIES,P6SMB100CA,5.0SMDJ78CA,SC250-650,SCWL201610G-1R0ML,15KPA18CA,20D,P4KE400A,SCML2012H1R0MBE,SM6S18A,RCF160-1812,PXXXXTB SERIES,1.5KE10CA,SCF035-0805R,SCHB1608W241EPF,SC1206-90ASMD,34S850K/40,SMF60A,P4SMA15A,SCGB2012S102FPF,15KPA30A,SM6S17A,P6KE27CA,30KPA84A,SCB-141N,PXXXXEC,5KP33A,PXXXXEA,P6SMB82CA,PXXXXEB,15KPA180CA,SC2E8-150H,1.5SMC500CA,SC2E8-150M,5KP11CA,30KPA36CA,P4KE6.8CA,20KPA52CA,P6SMB47CA,1.5SMC250CA,SCHB1608-W SERIES,SCPB1005S100NPF,TH8S15A,SC3E5-75LSMD,P6SMB220CA,3KP140A,SC2E5-470L,SMDJ200CA,SMF70A,SMDJ190CA,15KPA24A,30KPA90A,1.5KE380CA,SC250-145T,3KP64A,P4KE20A,SMAJ48CA,SMBJ43CA,TPSMAJ SERIES,SCWL201610G-R47ML,53D SERIES,34S140K/40,SMCJ7.5A,SMAJ400A,SC1812-400CSMD+,30KPA71CA,SMF19CA,SA90A,30KPA102A,SMBJ18A,SCF035-1210R,1.5SMC75CA,25D,SMAJ300CA,P6KE220CA,SA40CA,SCF020-60-1812R,SCB-501M,15KPA22A,SC1812-350CSMD,TH8S16A,KA-170,SMBJ19A,SCGB3216S202ETF,20KPA96CA,SM6S20A,3KP9.0CA,S61089,SM6S,P6KE100CA,SMBJ16A,20KPA240CA,SMBJ30CA,P6SMB SERIES,SCWL252010H 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型号- ESD12V23T-2LA,ESD12V32D-A,ESD12V32D-C,ESD08V88D-CDN,SLVU2.8-4,SLVU2.8-8,ESD05V32D-A,ESD3.3V08S-4L,ESD05V32D-LC,ESD05V32D-LA,ESD03V32D-LC,ESD05V14T-3L,ESD15V23T-2A,ESD15V23T-2C,ESD3.3V08S-4C,ESD05V10S-4L,ULC0524P,ESD05V88D-CDN,ESD15V52D-A,ESD03V23T-2LA,ESD12V08S-4L,ESD15V23T-1A,ESD12V08S-4C,EM2378K,ESD15V23T-2LA,ESD92DE005M03-C,ESD05V26T-4L,ESD24V14T-2C,LCDA05C-8,ESD08V88D-CBP,ESD08V23T-2C,ESD05V14T-2C,ESD18V32D-C,ESD08V23T-2A,LCDA05C-4,SMDA24C-7,ESD3.3V32D-A,SMDA24C-8,LC3304NP10,ESD05V26T-5L,ESD3.3V88D-C,ESD05V32D-C,ESD03V92D-A,ESD92DE005M03-A,ESD05V88D-CBP,ESD12V23T-LA,ESD12V26T-5L,ESD05V23T-LA,ESD08V23T-1A,ESD24V88D-CBP,ESD15V08S-6L,ESD3.3V55T-4L,ESD05V08S-4L,ESD3.3V23T-2C,ESD12V08S-6L,ESD3.3V23T-2A,ESD15V14T-2C,ESD05V08S-4C,ESD05V26T-2L,ESD12V14T-2C,ESD15V26T-4L,ESD24V92D-A,ESD18V14T-2C,SLVU2.8,ESD24V52D-A,ESD12V88D-CDN,ESD12V32D-LA,ESD05V32T-2A,ESD12V32D-LC,ESD36V23T-2LA,LC0504NP10,ESD05V23T-2LA,ESD05V23T-2LC,LCDA12C-8,ULC33CP8,ESD36V32D-A,SMDA05C-8,LCDA12C-4,ESD36V32D-C,SMDA05C-7,ESD15V88D-CDN,SMDA12C-8,SMDA12C-7,ESD0502V23T-2C,ESD3.3V23T-2LC,ESD0502V23T-2A,ESD15V26T-5L,ESD24V26T-5L,SR05-04A,ESD05V08P-LC,ESD09V56T-2C,ESD2.5V32D-LCA,ESD36V23T-1A,ESD24V23T-2LA,ESD12V88D-CBP,LCDA24C-8,ESD05V32T-2LC,PXXXXLA,ESD08V32D-C,LCDA24C-4,ESD36V23T-2C,LRV05-4,ESD08V23T-2LA,ESD15V88D-CBP,ESD36V88D-CBP,ESD82DE005M05-C,ESD18V88D-CDN,ESD52DE005M05-C,ESD52DE005M05-A,ESD05V52D-C,ESD3.3V52D-A,ESD05V52D-A,ESD15V23T-LA,ESD3.3V52D-C,ESD0501V32D-LC,ESD15V32D-A,ESD15V32D-C,ESD70V14T-LC,ESD12V23T-2A,ESD12V23T-2C,ESD12V35T-4L,ESD24V56T-4L,ESD48V32D-C,ESD05V14T-LK,ESD05V88D-LC,ESD12V55T-4L,ESD12V52D-A,ESD3.3V88D-CDN,ESD36V14T-2C,ESD24V08S-4C,ESD52DE150M05-C,ESD12V23T-1A,ESD05V36T-5L,ESD3.3V92D-C,ESD05V23T-1A,ESD05V92D-C,ESD36V88D-CDN,ESD05V14T-LC,ESD05V55T-4L,ESD05V92D-A,ULC3304P10,ESD03V23T-1A,ESD3.3V32D-LA,ESD24V23T-LA,ESD24V88D-CDN,ESD05V08S-6L,SM712,ESD15V08S-4C,ESD05V23T-2L,ESD05V36T-4L,ESD05V23T-2A,ESD05V23T-2C,SMDA15C-7,ESD03V35T-4L,SMDA15C-8,ESD08V32D-LC,ESD05V56T-5L,ESD24V08S-6L,ESD82DE005M03-C,PXXXXSA,PXXXXSB,ESD52DE005M03-A,EM2376K,ESD05V56T-4L,ESD05V88D-C,ESD24V23T-1A,ESD06V08S-4L,ESD12V26T-4L,ED15V08S-4L,ESD15V32D-LC,PXXXXTB,ESD24V23T-2A,PXXXXTA,SRV05-4,ESD12V14T-LK,ESD24V23T-2C,ESD05V56T-4LC,ESD08V23T-LA,ESD24V32D-C,ESD24V32D-A,ESD05V25T-4C,PXXXXSC,EM6401M,ESD05V35T-4L,LCDA15C-8,ESD05V56T-2L,LCDA15C-4,ESD92DE005M05-C,EM2374K,ESD12V92D-A,ESD92DE005M05-A,ESD03V32D-LCD,ESD03V32D-LCA,ESD08V14T-2C,ESD24V32D-LC,ESD03V32D-C,ESD18V23T-2C,ESD36V36T-2A,ESD92DE150M05-C,ESD03V23T-LA,ESD08V52D-A,ESD08V52D-C

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