WMSIC Electronic Components

BOURNS MF-FSMF025X-2

ModelMF-FSMF025X-2
Package0603
BrandBOURNS
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 24+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
BOURNS MF-FSMF025X-2
Type
BOURNS
Minimum package
6000 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
BOURNS
Electronic Component
MF-FSMF025X-2
Electronic Component
1
Electronic Component
0.8mm
Package
0603
Electronic Component
Resettable Fuse
Electronic Component
0.026g
Electronic Component
1.6mm
Electronic Component
0.65mm
Electronic Component
1
Electronic Component
100ms
Electronic Component
BM0265215398
Operating Temperature
40℃~+85℃
Voltage Rating(Vmax)
6V
Power(Pd)
500mW

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

BOURNS MF-FSMF025X-2 自恢复保险丝产品概述

BOURNS MF-FSMF025X-2是一款针对低压小电流场景优化的高分子正温度系数(PPTC)自恢复保险丝,采用0603表面贴装封装,体积紧凑、性能可靠,广泛适配便携式电子、IoT设备等低功耗电路的过流保护需求。

一、产品基本属性

  • 品牌:BOURNS(伯恩斯)
  • 产品类型:PPTC自恢复保险丝
  • 型号:MF-FSMF025X-2
  • 封装形式:0603(表面贴装器件,SMD)
  • 核心功能:电路过流保护,故障排除后自动恢复导通

二、核心电气参数详解

该产品参数针对低压场景精准设计,关键指标如下:

  1. 额定保持电流(Ihold):0.25A(常温下可长期稳定工作的最大电流,电路正常电流需低于此值)
  2. 最大耐压(Vmax):6V(直流环境下的耐受电压,交流场景需参考厂商 datasheet)
  3. 最大峰值电流(Imax):40A(故障时可承受的瞬间峰值电流,避免器件直接烧毁)
  4. 正常功率损耗(Pd):500mW(常温未动作时的损耗,低损耗减少电路温升)
  5. 初始态最小阻值(Rmin):550mΩ(常温未动作时的电阻,小阻值降低正常压降)
  6. 跳断后最大阻值(R1max):1.4Ω(过流动作后恢复的最大电阻,保证故障排除后导通)
  7. 工作温度范围:-40℃~+85℃(覆盖工业级与消费电子常见环境,宽温适应性强)

三、关键物理特性

  1. 封装尺寸:长1.6mm×宽0.8mm(符合0603国际封装规范,适配高密度PCB)
  2. 贴装方式:表面贴装(SMD),兼容自动化贴装生产线,生产效率高
  3. 体积优势:小体积设计节省PCB空间,满足电子设备小型化趋势

四、典型应用场景

MF-FSMF025X-2的低压小电流特性适配以下场景:

  1. 便携式电子:手机、智能手表、蓝牙耳机、TWS充电盒的电池保护电路(匹配锂电池低压需求)
  2. IoT低功耗模块:蓝牙传感器、智能家居节点、智能手环的电路过流防护
  3. USB接口保护:小型USB充电器、Type-C接口的过流保护(避免短路损坏设备)
  4. 工业小型模块:低压控制电路、微型传感器节点的过流保护(宽温满足工业环境)

五、产品优势与特点

  1. 自恢复功能:过流故障排除后自动从高阻态恢复低阻态,无需手动更换,降低维护成本
  2. 低初始电阻:550mΩ阻值大幅减少正常工作压降与损耗,不影响电路性能
  3. 宽温可靠性:-40℃~+85℃工作范围,稳定适配极端温度环境
  4. 小体积集成:0603封装适配高密度PCB设计,符合电子设备小型化趋势
  5. 品牌品质:BOURNS全球知名厂商,产品一致性好,符合RoHS、REACH环保标准
  6. 高耐冲击:40A峰值电流耐受能力,可承受突发短路或浪涌冲击

六、使用注意事项

  1. 电流匹配:电路正常电流需低于0.25A(Ihold),避免误动作
  2. 电压匹配:电路工作电压不超过6V,防止器件击穿
  3. 贴装工艺:SMD封装需控制焊接温度(通常260℃以内),避免虚焊或过热损坏
  4. 环境温度:避免长期工作于+85℃以上环境,防止性能衰减
  5. 故障排查:多次动作后阻值明显增大时,需检查电路故障(如短路、过载),必要时更换器件

总结:BOURNS MF-FSMF025X-2是一款高性价比低压自恢复保险丝,兼具小体积、宽温、自恢复等优势,是便携式电子、IoT设备等场景过流保护的理想选择。

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