【应用】防雷更高！SPD模块与小型化保险丝共护LED照明灯

时间： 2019-07-30 来源：华强LED

技术问答

目前，LED照明灯具替代潮在全球市场都已经兴起，尤其是在像中国大陆、中国台湾、日本这些亚洲国家和地区中，LED照明灯具市场保持每年约20%的速度在增长。

LED 户外路灯、投光灯、洗墙灯、景观照明灯、草坪灯也不例外，不过，北美市场对这些户外LED照明灯具提出了更高的防雷要求，UL认证最新规定，户外LED照明灯具的抗雷击浪涌水平必须达到20KV和20KA。目前市场上能够满足UL认证要求的SPD防雷模块不多，目前只有LITTELFUSE推出的LSP系列防雷模块（SPD）才能达到这一标准要求。

图1：Littelfuse能抗20KV和20KA雷击浪涌冲击的新型SPD模块

LSP系列防雷模块（SPD）是Littelfuse专为室外及商用LED照明设施满足美国UL认证对瞬变过压保护的要求而设计的产品，目前有两个产品LSP05和LSP10，这二个浪涌保护装置（SPD）模块配有Littelfuse热保护压敏电阻，符合UL1449第3版标准，满足IEEE C62.41 C等级最高要求，同时提供串联与并联两种连接方式，便于客户在现有电路上安装。这2个SPD模块还可提供强大的浪涌电流承受能力。

Littelfuse公司资深技术服务工程师李晓辉说：“LSP系列抗浪涌模块已经迅速被市场所应用，珠三角和长三角多家生产户外LED照明的厂商已经下单订购，主要是针对出口北美市场的项目以适应当地的标准。”

即使在压敏电阻寿命即将结束或者持续导通电流情况下，LSP05和LSP10模块内置热开路功能仍能在发生灾难性故障和火灾时提供额外的保护，应用包括户外和商业LED照明，其中包括道路照明、交通照明、数字标牌、维修入口照明、停车场所照明、泛光照明、隧道照明和街道照明。

LSP05和LSP10浪涌保护模块具有以下关键优势：
1）这些经过优化的浪涌抗扰解决方案的最大雷电浪涌电流分别可达20,000A（LSP10）和10,000A（LSP05），可为户外LED设施提供保护。
2）内部压敏电阻受到热保护，以避免由于产品寿命终止或持续导通电流导致的故障。
3）对需要更换的SPD进行明确指示可避免照明设备未来遭受浪涌损害。
4）IP66防水和防尘设计让您对户外安装地点可进行灵活选择：照明设备内侧或外侧、灯杆顶端或底端、变电箱内或配电盘上。
5）可选的指示线可针对需要更换的SPD轻松构建指示/监控电路。
6）这些装置经认证达到UL1449 4型元件组装要求，并符合IEC 61643-11 II级和EN 61643-11 2型的规定，因此适用于全球各地的LED照明设备。
7）其外形小巧（48x48x30mm），可轻松安装于照明设备中；安装支架可简化安装和更换流程。

众所周知，LED照明灯具不能直接用在220V的交流电源上作业，首先得降压，直接连接到交流电源的设备可能会因灯泡内部元件或电路故障导致的短路和过载情况而损坏。

除此之外，雷击浪涌或负荷开关瞬变能够造成电压尖峰或环形波，给元件造成压力并最终导致损坏，从而使灯泡报废。鉴于LED灯泡的价值定位不仅仅是降低能源消耗，还有更长的使用寿命，在消除因电气环境促使的现场故障中考虑瞬态电压保护将是至关紧要的。

而且，LED对高温极为敏感，应不得超过85℃。将LED和LED驱动板的温度控制在这个水平之下对于它们的使用寿命来说极为重要。

此外，目前室内照明有一个新的需求是保险丝更加小型化、耐压值提高，Littelfuse也针对这一需求推出了新的产品，即470和476系列保险丝。

470和476系列NANO2超小型保险丝提供以下关键优势：
1）在极端温度下有效地运作，没有过多地牺牲电流额定值；
2）在额定电压下提供最广范围的额定电流；
3）通过IEC61000-4-5 2 ed.浪涌抗干扰实验（476系列，3A和以上额定电流）和能源之星（470系列，1.5A和以上额定电流）的需求，使他们成为LED照明应用的最佳选择在指定的分断能力要求做过周密的测试，特别是在86VDC/10KA条件

图2：Littelfuse新推出的超小型保险丝470/476系列

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SERIES,HLT30P06,1.0SMB22CA,SMCJ220CA,32D561K,2R230S-6X4.2,HLT30P03,HLS187N80,5D241KJ,SMD1206-075-16V,SMD2920-200-16V,1.5KE51A,7D781K,HLS170N30PF5,P6SMB,HLS60R580,SA70CA,1.5KE36CA,5D121K,LC SERIES,DA SERIES,5KP36A,P6SMB16A,SMAJ18CA,SM8,SA17CA,1.5KE170CA,SMD1812-351,25D122K,5KP90CA,S SERIES,P0080TA,SMF,SMDJ51A,3KP45CA,P6SMB15A,ESD3V0J4,3R230S-6X8,3KP58CA,HLP38N30,10D471KH,25D561K,1.5KE56A,ESD8V0D5B,US2B,US2A,10D471KJ,US2K,HLS12N100C,US2J,30V-900,US2G,SA5.0CA,US2D,HLP4P20,RS2AB,20D911KH,YAZ1P5D XXX,HLR08U02,20D911KJ,RS2AF,5KP24CA,US2M,P6SMB16CA,HLP110P06,SMBJ90A,10D-20,SMF64A,US1B,US1A,SMBJ12CA,2R***L-5.5X6 SERIES,US1J,P6SMB13A,US1G,US1D,US1M,ESDLC24VD3B,US1K,SMBJ5.0A,HLT6N06,30V-090,SMD2920-100-33V,ESD8V0D3B,HLS20100N2,5D561K,1.0SMB6.8A,Y1ZD9V1,HLS120R800,P6SMB12A,YC2M2012B,20D220K,P8SMB75CA,YAZ1P5D10,32D911K,YAZ1P5D16,YAZ1P5D15,YAZ1P5D18,YAZ1P5D12,YAZ1P5D11,P6KE180CA,YAZ1P5D13,Y3ZP2D5V6,Y5ZP2D XXX,P6SMB10A,P6SMB11A,HLR75S12,Y3ZP2D5V1,MF58-203F-3950,25D SERIES,P8SMB64A,YAZ1P5D20,HLP75N08,P6SMB100CA,YAZ1P5D27,5.0SMDJ78CA,SMD0603-003-30V,YAZ1P5D22,20D,YAZ1P5D24,Y3ZP2DXXX,10D101K,1.5KE10CA,YAZ1P5D30,7D471K,YAZ1P5D39,SMF60A,YAZ1P5D33,25D431K,YAZ1P5D36,5D820KJ,5D560K,P6KE27CA,5KP33A,P6SMB82CA,10D102K,14D911K,20D221K,YAZ1P5D43,7D470K,5KP11CA,HLR12U12,YAZ2D8V2,20D470KJ,P6SMB47CA,RS2GB,20D K系列,HLT60N03,HLT60N02,HLS60150K,MF52A-104F-3950,1.5KE540A,HLT60N08,RS2GF,HLT60N04,SMDJ200CA,HLT60N06,16V-1000,SMF70A,SMDJ190CA,3KP64A,HLR12U06,HLR12U04,HLR12U02,10D112K,SMAJ48CA,SMBJ43CA,10D680K,HLT60N10,14D561K,1.0SMB9.1A,HLS247N120Q,1N4001W,S3AF,S3AC,SMCJ7.5A,SMAJ400A,S3AB,600V-110,60V-300,SMF19CA,ES3DBF,SA90A,34S471K,10D241K,SMD1206-075-6V,SMBJ18A,MF52A-303J-4200,HLP840,14D431K,HLT4P06,P8SMB SERIES,25D,1N4002W,MF52A-104H-4100,SMAJ300CA,P6KE220CA,SA40CA,25D911K,HLP830,YC2M2012B161GBE,1N4003W,3KP9.0CA,1.5KE510CA,SMD1812-421,MF52A-302J-3950,HLT5N04A1N,SMD1210-035-16V,Y3ZP2D18,14D681KH,P6KE100CA,2R300S-8X6,SMBJ16A,MF52A-103F-3380,HLS145NH80PF5,14D KJ 系列,Y5ZP2D XXX SERIES,SMBJ30CA,P6SMB SERIES,5KP28A,14D681KJ,S3DB,Y3ZP2D10,S3DC,Y3ZP2D12,HL78MXX,Y3ZP2D11,Y3ZP2D14,Y3ZP2D13,Y3ZP2D16,0603,Y3ZP2D15,YAZ1DXXX SERIES,14D112KJ,S3BF,HLT4P10,1N4004W,SMF110A,S3BB,S3BC,SMD1210-200-6V,60V-375,SMAJ8.5CA,SMAJ180A,HLP12P06,SMBJ17A,SMF85CA,RS2BB,SMBJ120CA,14D121K,14D112KH,RS2BF,14D561KJ,5KP8.0A,1N4005W,14D561KH,5KP250A,3KP75CA,SMD1812-401,Y3ZP2D39,SMBJ14A,HLR24U12,P6SMB18A,7D621KH,SMDJ16CA,7D621KJ,14D560K,600V-160,Y3ZP2D33,Y3ZP2D36,SMBJ130A,S3DF,RS2DB,1N4006W,ES2ABF,Y3ZP2D30,RS3KBF,5KP120CA,SA100A,SMBJ15A,SMAJ170CA,2R400L-8X6,RS2DF,Y3ZP2D20,Y3ZP2D22,600V-150,Y3ZP2D24,Y3ZP2D27,Y1ZP35D7V5G,YC2M 2012B SERIES,100D-9,1N4007W,YAZ1D6V2,ESD24VD8,HLP9N20,SMBJ12A,SMAJ6.0A,ESD24VD3,P6KE62CA,ESD24VD5,YAZ1D6V8,20D511KH,20D511KJ,SA7.5CA,ESD36VD3,5.0SMDJ78A,SMCJ7.0A,SMDJ51CA,HLG2301BA1N,5.0SMDJ48CA,Y5ZP2D3V9,Y5ZP2D3V3,ES5JC,Y5ZP2D3V6,SMBJ13A,15KP51A,Y5ZP2D3V0,S3GF,P6KE75A,S3GC,S3GB,10D201KJ,SMCJ150A,30V-110,HLS18N200K,SMD1812-200-16V,3R075L-6X8,SA6.0A,S3JF,5KP8.5A,SMAJ78A,S3JB,YAZ2D110,S3JC,ESDSMDA15C,HLP14N10,ESD36VAP,US3ABF,5KP120A,30V-120,SMBJ10A,SMD1210-075-6V,SMBJ11A,SMAJ22CA,7D180KJ,5D330KJ,SMCJ6.5CA,HLS2045N2,2R***S-8X6,YAZ2D100,SMAJ75A,SMCJ36A,RS2KB,SMDJ210A,SA190CA,15KP75CA,RS2KF,7D K SERIES,5.0SMDJ75A,P0300DA,ES5GC,SMF54CA,YAZ2D130,1.5KE100A,3R600L-6X8,P6SMB170A,HLS16N100C,SMCJ45CA,3KP60A,US5GBF,RS2JB,15KP240CA,HLT40P03PF5,RS2JF,HLT40P03PF4,P6KE75CA,S3KB,HLT9P01C,YAZ2D120,S3KF,S3KC,SMAJ6.5A,SMBJ440A,Y1ZP35D47G,RS2MF,7D K,SMCJ58CA,HLT20N10,HLS20150K,SMDJ7.5CA,SMD1206-301,RS2MB,MF52□□□4300,5.0SMDJ17CA,1.5KE18CA,ESD3V3APB,14D201KJ,3R200S-5X7.6,5KP60CA,HLT15N03C,5.0SMDJ70CA,YAZ2D150,HLT20N06,HLS90N60PF5,SMCJ33A,7D K系列,HLT30ND03PF4,20D751KJ,20D751KH,SMD1206-050-24V,YC2M1012B121FBP,3R470L-6X8,L SERIES,20D K SERIES,S3MC,S3MB,ES5DC,HLT20N15,HLS250N80,YAZ2D140,14D301K,SA6.5A,S3MF,5.0SMDJ33CA,P0640S,SA36CA,SMBJ,HLS90N30PF5,SMDJ20CA,SMF6.0A,HLR30U03,HLS130N85,LB SERIES,HLR30U02,HLR30U04,3D-13,RS1G,HLR30U06,RS1D,7D681KJ,3D-11,ESDLC5V0D8B,RS1B,YAZ2D170,20D361K,SMD1210-020-30V,HLS8060K,RS1A,P8S

选型指南 - 音特电子 - 2021/10/18 PDF 中文下载

【选型】Littelfuse（力特）保险丝座选型指南

目录- Fuse Characteristics, Terms and Consideration Factors Fuse Selection Checklist PTC Characteristics and Terms PTC Product Applications Typical PTC Circuit Protection Designs Fuse Standards Fuse and PTC Products Selection Guide Fuse Packaging and Part Numbering

型号- 1812L,471,230,472,473,232,233,234,235,477,874,875,876,239,877,2016L,461E,485,LORHO,400,157T,369,804,807,808,600R,437 SERIES,USBR,370,251,372,373,494,253,374,2205,SL,0603L,0805L,ST,382,262,383,263,385,265,266,267,268,269,303,429,1210L,LR,LT,391,1206L,392,272,273,274,395,154,275,396,397,398,157,278,399,219XA,279,312,950,313,30R,159,314,435,315,437,438,318,LORHO PTC,160,285,440,250S,441,250R,322,443,202,203,324,VL,325,446,326,447,448,449,208,209,VT,16R,451,452,332,453,154T,454,213,456,215,72R,216,458,60R,217,459,218,977,460,461,220,462,464,465,224,466,225,467,468,501,469,229,505,506,2920L,508

选型指南 - LITTELFUSE PDF 英文下载