WMSIC Electronic Components

Taiwan Lu Hai MSMD150-24V MSMD150

ModelMSMD150-24V
Package1812
BrandElectronic Component
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
MSMD150-24V
Type
Taiwan Luhai
Minimum package
1500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
MSMD150-24V
Electronic Component
1
Electronic Component
3.41mm
Package
1812
Electronic Component
Resettable Fuse
Electronic Component
0.095g
Electronic Component
4.73mm
Electronic Component
1.8mm
Electronic Component
1
Electronic Component
500ms
Electronic Component
BM0227705688
Voltage Rating(Vmax)
24V
Power(Pd)
800mW
Current(Imax)
100A

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

MSMD150-24V 高分子聚合物自恢复保险丝产品概述

一、产品基本属性与核心定位

MSMD150-24V是台湾陆海电子推出的1812贴片封装高分子聚合物可恢复保险丝(PPTC),核心功能是为低电压小电流电路提供过流/过温双重保护,替代传统一次性保险丝。其以重复使用、低损耗、小型化等优势,精准适配移动电子、便携式电源等高密度电路场景。

二、关键参数详解(核心性能指标)

2.1 电气性能参数

  • 耐压(Vmax):24V
    最大允许工作电压,需严格匹配电路电压范围,超压可能导致击穿失效。
  • 保持电流(Ihold):1.5A(25℃)
    常温下持续导通且不动作的最大负载电流,实际建议降额至1.2A以内(80%降额),避免误触发。
  • 跳闸电流(Itrip):3A(25℃)
    常温下开始跳断的最小电流,即负载电流≥3A时,保险丝会在规定时间内切断电路。
  • 最大耐冲击电流(Imax):100A
    瞬间峰值电流耐受能力(脉冲宽度≤10ms),可承受开机浪涌等短时间大电流,不损坏。
  • 初始阻值(Rmin):40mΩ
    未动作时的最小阻值,低阻特性大幅降低电路功耗,减少发热。
  • 跳断后阻值(R1max):160mΩ
    恢复常温后的最大阻值,变化量小,不影响电路正常工作。
  • 消耗功率(Pd):800mW
    额定工作状态下的自身功耗,低功耗适配电池供电设备,延长续航。
  • 动作时间:500ms(25℃,Itrip电流下)
    常温跳闸响应时间,温度升高(如过流升温)动作时间缩短(60℃时约200ms),保护更及时。

2.2 物理与封装参数

  • 封装:1812(贴片式)
    符合国际标准,适配回流焊、波峰焊工艺,便于自动化生产。
  • 尺寸:长4.73mm × 宽3.41mm × 高1.8mm
    紧凑尺寸,可嵌入智能手机、智能手表等小型设备的狭小空间。

三、产品核心优势

  1. 重复使用,降本增效
    跳断后无需更换,故障排除(短路消除、负载恢复)后随温度下降自动恢复低阻状态,可重复使用数十次至数百次,避免一次性保险丝的更换成本与停机时间。
  2. 低阻低耗,适配电池设备
    40mΩ初始阻值+800mW功耗,几乎不影响电路效率,尤其适合移动设备(如充电宝、智能手表),延长电池续航。
  3. 快速响应,保护及时
    常温500ms动作时间,高温下响应更快,可在电路损坏前切断过流,避免电池起火、主板烧毁等故障。
  4. 小型化设计,适配高密度电路
    1812封装+紧凑尺寸,可集成到智能手机、蓝牙耳机等产品的高密度电路板中,不影响外观与结构。
  5. 宽温适应性
    工作温度范围-40℃~85℃(陆海常规PPTC特性),满足户外设备(如车载小电器)的高低温需求。

四、典型应用场景

  1. 移动电子设备
    智能手机、平板电脑、智能手表、蓝牙耳机:电池过流保护(充电/放电时)、主板电路保护。
  2. 便携式电源
    移动电源、充电宝:输入输出过流保护(防止短路损坏电芯)、充电模块保护。
  3. 小型家电与数码产品
    电动牙刷、智能音箱、游戏机手柄:内部电机/芯片过流保护。
  4. 汽车电子
    车载充电器、点烟器适配器、行车记录仪:低压电路过流保护(适配12V车载电压)。
  5. 工业控制
    小型传感器、PLC模块:辅助电路过流保护(低电压场景)。

五、使用注意事项

  1. 参数匹配
    严格控制工作电压≤24V,负载电流≤Ihold(1.5A),避免过压/过流导致失效。
  2. 降额使用
    环境温度>40℃时,Ihold按温度系数降额(每升10℃降10%),如50℃时建议≤1.35A。
  3. 焊接工艺
    适配回流焊(峰值温度260℃以内,时间≤10s),避免手工焊接高温损坏。
  4. 恢复条件
    跳断后需冷却至50℃以下才能恢复,若持续过流(短路未排除)则保持高阻,需排查故障后再用。

六、总结

MSMD150-24V作为台湾陆海的经典1812封装PPTC,以低阻、重复使用、快速响应为核心竞争力,精准匹配小型化电子设备的过流保护需求,是替代一次性保险丝的高性价比选择,可有效提升设备可靠性与用户体验。

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