【选型】力特快熔保险丝0451.160MRL助力NB-IoT物联网网关电池输出过流防护设计,分断电流能力达300A

2022-10-10 世强
保险丝,快熔保险丝,0451.160MRL,LITTELFUSE 保险丝,快熔保险丝,0451.160MRL,LITTELFUSE 保险丝,快熔保险丝,0451.160MRL,LITTELFUSE 保险丝,快熔保险丝,0451.160MRL,LITTELFUSE

NB-IoT物联网网关一般采用3.6V/3.8Ah锂电池供电,为避免物联网网关电池供电因负载短路异常造成燃烧或爆炸风险,一般需要在电池输出加一款快熔保险丝,选型因素参考如下:

1、 额定工作电压:DC3.6V锂电池供电,一般选择耐压至少6VDC保险丝即可;

2、 额定工作电流:3.6V/3.8Ah锂电池平均工作电流约100mA(峰值120mA),以1.3倍过流防护,建议选择160mA的保险丝设计即可;

3、 小尺寸

 

针对如上的设计需求,推荐LITTELFUSE快熔保险丝0451.160MRL,最大额定工作电压125VAC/DC,在环境温度25℃条件下,额定工作电流0.16A,分断电流能力达300A@32VDC,工作温度范围-55℃~125℃,通过UL、CSA认证,典型电性参数参考如下图1所示。


图1:Littelfuse快熔保险丝0451.160MRL典型电性参数

 

推荐理由如下:

1、 分断电流能力达300A@32VDC,具有高的安全切断电流能力,产品可靠性高;

2、 采用2410表贴封装,典型尺寸仅6.1x2.7x2.7mm,占板空间少,满足小型化设计需求;

3、 保险丝帽采用镀金设计,提供更小的接触电阻和高抗氧化性能,增加实际环境实用寿命;

4、 市面上有成熟的应用,产品性能得到验证;


综上所述,力特快熔保险丝0451.160MRL助力物联网网关电池输出过流防护设,分断电流能力达300A,满足小型化设计需求

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数据手册  -  LITTELFUSE  - 10/19/23 PDF 英文 下载

JLLN Series Class T Fuses 300 V ac • Fast-Acting • 1–1200 A

型号- JLLN015,JLLN800.XXP,JLLN001P,JLLN300P,JLLN025P,JLLN035LS,JLLN025.T,JLLN020.TXP,JLLN110P,JLLN100.VXP,JLLN006.T,JLLN100.V,JLLN150P,JLLN002.TXP,JLLN1200X,JLLN080.VXP,JLLN090,JLLN1200P,JLLN250,JLLN010,JLLN002.T,JLLN600P,JLLN090.VXP,JLLN050LS,JLLN800.X,JLLN040.T,JLLN002P,JLLN1000,JLLN200.XXP,JLLN450P,JLLN035.TXL,JLLN700,JLLN300.X,JLLN030P,JLLN035.TXP,JLLN175P,JLLN006.TXP,JLLN450.XXP,JLLN070P,JLLN040.TXLS,JLLN175.XXP,JLLN010.TXP,JLLN500.XXP,JLLN040.TXP,JLLN070.VXP,JLLN225.XXP,JLLN040.TXL,JLLN225.X,JLLN035.TXLS,JLLN150.XXP,JLLN020,JLLN060LSE,JLLN050.TXLSE,JLLN035.TXV,JLLN040.TXV,JLLN070.V,JLLN025,JLLN300,JLLN450.X,JLLN045.TXLSE,JLLN100P,JLLN045.T,JLLN015P,JLLN050LSE,JLLN003P,JLLN350.X,JLLN1000.XXP,JLLN035LSE,JLLN SERIES,JLLN150.X,JLLN400.X,JLLN150,JLLN030,JLLN003.T,JLLN600.XXP,JLLN035,JLLN060.T,JLLN010.T,JLLN060.TXL,JLLN600,JLLN125P,JLLN020P,JLLN250P,JLLN400P,JLLN060L,JLLN030.TXP,JLLN060.TXP,JLLN,JLLN060P,JLLN060.TXV,JLLN045.TXLS,JLLN045.TXV,JLLN015.TXP,JLLN1100.XXP,JLLN060V,JLLN350.XXP,JLLN045.TXP,JLLN040,JLLN600.X,JLLN700P,JLLN045.TXL,JLLN700.XXP,JLLN060.TXLSE,JLLN045,JLLN045L,JLLN200,JLLN090.V,JLLN045P,JLLN003.TXP,JLLN125.X,JLLN045V,JLLN110.XXP,JLLN250.XXP,JLLN060.TXLS,JLLN050,JLLN175,JLLN450,JLLN006P,JLLN1200.XXP,JLLN080.V,JLLN225,JLLN500,JLLN200P,JLLN015.T,JLLN1200,JLLN010P,JLLN050L,JLLN1100X,JLLN050P,JLLN050V,JLLN090P,JLLN1100P,JLLN200.X,JLLN060,JLLN500P,JLLN225P,JLLN035L,JLLN100,JLLN030.T,JLLN040LS,JLLN020.T,JLLN035P,JLLN350P,JLLN300.XXP,JLLN050.TXV,JLLN050.TXP,JLLN035V,JLLN1000X,JLLN500.X,JLLN050.TXL,JLLN040LSE,JLLN1000P,JLLN175.X,JLLN070,JLLN025.TXP,JLLN350,JLLN800P,JLLN001.T,JLLN110,JLLN250.X,JLLN125,JLLN400,JLLN006,JLLN800,JLLN035.T,JLLN045LS,JLLN040L,JLLN1100,JLLN110.X,JLLN125.XXP,JLLN040P,JLLN040V,JLLN080P,JLLN700.X,JLLN400.XXP,JLLN050.TXLS,JLLN040.TXLSE,JLLN080,JLLN045LSE,JLLN001.TXP,JLLN001,JLLN002,JLLN003,JLLN050.T,JLLN060LS,JLLN035.TXLSE

数据手册  -  LITTELFUSE  - 07/14/2022 PDF 英文 下载

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