【选型】自恢复保险丝1812L110/33MR用于工业级3D视觉相机电源输入过流防护设计,待机状态功耗仅0.0726W
为避免工业级3D视觉相机电源输入因负载短路异常造成燃烧风险,一般在电源输入加一颗自恢复保险丝做过流保护设计,选型因素参考如下:
1、 额定工作电压:一般是DC12V或24V供电,上限不超过30VDC,一般建议选择耐压33VDC自恢复保险丝设计即可;
2、 保持电流:与负载功率大小及环境工作温度相关,通常工业相机环境工作温度不超过50℃,一般选择在高温50℃条件下保持电流至少800mA自恢复保险丝;
3、 低待机功耗。
针对如上的设计需求,推荐选择LITTELFUSE(力特)自恢复保险丝1812L110/33MR ,1812封装,最大额定工作电压33VDC,常温25℃下保持电流1.1A,在50℃条件下保持电流830mA,可承受最大故障电流20A,工作温度范围-40℃~85℃,通过UR、TUV认证,典型电性参数参考如下图1所示。
图1:Littelfuse(力特)自恢复保险丝1812L110/33MR典型电性参数
推荐理由如下:
1、 低待机功耗:可以通过计算得出,利用P=Ihold*Ihold*R得出,其中自恢复保险丝保持电流Ihold为1.1A,Rmin=0.06Ω,Rmax=0.2Ω,其中Ihold、Rmin和Rmax可通过图1中电性参数表格获取,带入公式得到Pmin=0.0726(W),Pmax=0.242(W),即待机状态时的功耗为0.0726W~0.242W;
2、 通过UR、TUV安规认证,可满足欧美安规出口要求。
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型号- 30R135UU,72R300XF,1210L075/24PR,30R090UU,600R160-R1UR,1206L025YR,1812L,1812L350SL,1812L010/60DR,0603L050SLYR,2016L075/60,600R160-RAF,72R160XMR,0603L010YR,60R185XMR,1210L150TH,0805L110SLYR,16R1100G,1210L450SLWR,0402L050SLKR,0603L150SL,30R160UPR,1812L020PR,1206L110/12SL,2920L300DR,1206L175SLYR,72R090X,16R400GPR,16VT210SU,0805L260SLTH,1210L175WR,1812L200/12,LORHO,250S130¨CRCDR,30R300U,1812L200/16,16R1000GF,0805L100,16R250GU,20LR450,250R145-RA,2016L075/60MR,30R090,250R145-RAU,0402L020SL,2920L500/16,1206L260SLTHYR,1812L110/33MR,250S130¨CRC,250S130¨CRB,250S130¨CRA,16R135B,60R110XU,250S130V,2920L330/24MR,0603L075SL,0805L110,1206L175PR,250R145-RB,0603L,1206L012WR,16R500GU,24LT100,1812L150/12DR,1812L200/16DR,16R185BU,1210L380SL,600R160-RAUR,250S130¨CRBDR,30R800UH,15ST175U,250R145ZR,600R160F,16R1000G,16R110BPR,1206L380SLTHYR,16R250GPR,250R120-R3U,600R150-RA,600R150-RB,60R250,60R010,1812L075/33,250R120-R3,250R120-R2,250R120-R1,1210L200,1812L260/16MR,30R250UPR,72R135XMR,16R600GDR,1210L400SL,1206L300SLTHYR,30R700UMR,1206L450SL,250R120-RF,1206L200SLYR,250R120-RC,250R120-RA,0603L035YR,250R120-R2U,0603L175SL,1210L300SLYR,16R800GMR,60R375XH,16R110B,1812L190SLPR,16R1100GF,250R120TU,0805L075SLYR,16R1200G,250R120-RFZR,0402L,2920L200DR,2920L300,600R150F,2920L700SL,250R120-R1U,30R700UF,1210L075YR,2920L700SLPR,1210L110/16WR,60R110,1210L175SLYR,0805L010/24,16R600GU,2920L075/60MR,30R400U,60R050X,72R,60R,0402L010SLKR,72R090XPR,1206L050/15,1206L150SLYR,72R185XMR,2920L260PR,72R250XMR,1206L450SLWR,60R010XU,16VT210S,30R185,1812L075/24,1206L110SL,16R700GKLMR,1206L110TH,60R075X,LT 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在伺服驱动器的预充电电路中,采用可控硅做软起动控制,其驱动采用变压器驱动,由于在实测时发现变压器存在磁芯饱和而电流短路的情况,所以希望能找一款过流保护器件?
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型号- RF1252-000,RF2625-000,RF2706-000,RF3120-000,RF2722-000,RF3023-000,RUEF600-AP,RHEF650,RF2641-000,RF2560-000,PSR-25600Z,RF3755-000,LR4-190XF,PSR-28546,RF0106-000,RGEF1000-2,RUEF110S,RGEF1000-1,RKEF400-2,RF3899-000,TSM600-250F-RA-2,AGRF600S-1.15,RHEF600-2,RGEF800,VLP220F,LVR100S-240,122814-000,RF3523-000,TRF600-160,RF3417-000,RF0079-000,RF4815-000,RF3248-000,RUSBF185,MGP500,TRF250-120T-0.177,RXEF250,RXEF017S,RF3336-000,RF3361-000,LR4-550F,RUEF185S RF4606-000,RF3255-000,RF4903-000,MXP190B,RUSBF110-2,PSR-28523,RF4459-000,RXEF065-2,TRF250-120UT,TRF250-120US,AGRF1200,PSR-28527,PSR-28528,RUEF800-1,RUEF800-2,PSR-28704-1.3,RF4378-000,RGEF800K-0.142,RF2776-000,RXEF017H,LR4-380SSDF,RHEF200,RF3280-000,LVR033K,RF2695-000,RXEF030-2,RF0169-000,LVR033S,598204-000,MXP190,RUSBF160,LR4-190SLF,RF2650-000,RF1083-000,AHRF900,RF0032-000,RF2713-000,PSR-27656,VLP175DDUF,F81914-000,RF0489-000,RF3764-000,RF0764-000,RF4644-000,RF3746-000,TRF600-150,MHP-TAM15-9-85N,RF4822-000,MXP180,RF3352-000,RF3568-000,RKEF050-AP,RF3190-000,RUSBF155,LVR125S-240,RF3584-000,PSR-28510,LVR075S,PSR-28511,RF4894-000,TS250-130F-2,PSR-28279-2,RF3329-000,RF2222-000,RUEF500K-AP,TRF600-150-PH-0.118,RHEF1000S-DE,VLP190ULLF,RF3345-000,RF3620-000,RF1396-000,RF3239-000,TRF250-183-2,AHEF100,RF0703-000,RF2688-000,RHEF050-AP,RF1671-000,RF3399-000,TRF250-145US-B-0.5,RUSBF135,RF2873-000,RF4806-000,LR4-190SF,RKEF375K,SRP350DF,TSL250-080F-2,RF0016-000,RF3262-000,RUEF400K-2,RF2634-000,RGEF1100B-2,657076-000,VTP240F,RF2880-000,LR4-1300F,RGEF400,RUSBF120,RF2627-000,PSR-28148,PSR-28149,RF3498-000,AGRF700,RF2805-000,SRP175SF,A33463-000,RUEF800,TRF250-120U-2,RF2704-000,RF0043-000,RUSBF110,RF2724-000,RF2767-000,RF0178-000,RXEF110-2,SRP200F,RF0771-000,RF2783-000,RF2740-000,RUEF185-AP,RF4698-000,D63282-000,RF3282-000,RF3176-000,VLR170DF,RF4743-000,TRF250-145-RA-B 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全品类Littelfuse力特车用电路保护器件:TVS、保险丝、自恢复PTC、压敏电阻
Littelfuse力特是业界车用保护器件种类最齐全的制造商。旗下具有汽车级TVS/TVS阵列、AECQ合规保险丝、汽车级自恢复PTC、汽车级压敏电阻等车用电路保护器件。广泛应用于汽车通信和信息娱乐系统、车载网络系统及车身、底盘与安全系统、先进驾驶辅助系统、传动系统、新能源汽车等。世强是Littelfuse力特官方授权一级分销商,可供应Littelfuse力特车用电路保护器件,库存丰富,价格优惠。
应用注:设计可靠使用适当电路保护的无人机
描述- 本文探讨了设计可靠无人机时电路保护的重要性。文章指出,无人机事故多由“飞行员失去控制”引起,但实际原因是无人机依赖的子系统(如GPS、接收天线、WiFi I/O端口和电子速度控制器)出现问题。文章强调,所有无人机都易受故障影响,需要实施被动电池安全系统、静电放电(ESD)保护和电机过载保护。文章详细介绍了电池、GPS、接收天线和I/O端口的电路保护方法,包括使用MHP-TA、PolySwitch PPTC、表面贴装熔断器和ESD抑制器等。
【经验】光伏逆变器母线软起方案应用水泥电阻的问题和使用PTC的优势
Littelfuse自恢复保险丝600R160-R1采用领先的自恢复过流保护技术,灵敏度较高,电阻温度系数比金属大10~100倍,能检测出10-6℃的温度变化,额定电压最高600V,应用在光逆变器母线软起电路中起到短路保护,缩短软起时间,抗浪涌电流对电路的损害等作用。
【选型】力特自恢复保险丝RF1387-000用于中水表锂锰电池,可承受最大故障电流60A,最大额定工作电压16VDC
为避中水表锂锰电池因负载短路异常造成燃烧或爆炸风险,一般在电池输出加一颗薄型自恢复保险丝做过流保护设计,推荐选择Littelfuse(力特)电池叠片型自恢复保险丝RF1387-000,最大额定工作电压16VDC,常温25℃下保持电流1.2A。
Littelfuse(力特) 最专业最齐全的全球领先保护器件
描述- Littelfuse公司简介:全球领先的电路保护企业,提供广泛且尖端的电路保护产品及解决方案。公司成立于1927年,全球拥有7500员工,2014年全球销售额865亿美元,全球分布有35个联络处。公司产品涵盖消费电子产品、汽车、商用车辆和工业设备等多个领域,提供针对不同应用需求的解决方案。 主要产品介绍:Littelfuse提供过流保护器件(保险丝、自恢复保险丝)、过压保护器件(瞬变抑制二极管、压敏电阻、气体放电管、SIDCtor保护晶闸管、聚合物ESD抑制器)、开关型晶闸管、LED保护器、簧片开关和磁簧传感器等。 重点市场及主推型号介绍:涵盖消费/通信、工业汽车等多个市场,提供多种型号的产品以满足不同需求。例如,过流保护器件中的保险丝和自恢复保险丝,过压保护器件中的瞬变抑制二极管和压敏电阻等。
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
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