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Taiwan Lu Hai MSMD050-60V MSMD050
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- MSMD050-60V
- Type
- Taiwan Luhai
- Minimum package
- 1500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- MSMD050-60V
- Electronic Component
- 1
- Package
- 1812
- Electronic Component
- Resettable Fuse
- Electronic Component
- 0.11g
- Electronic Component
- 1
- Electronic Component
- BM0264399032
- Operating Temperature
- 40℃~+85℃
- Voltage Rating(Vmax)
- 60V
- Power(Pd)
- 800mW
- Current(Imax)
- 100A
- Electronic Component
- Electronic Component
- Electronic Component
- 1500
- Latching Current(Ihold)
- 500mA
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
MSMD050-60V 产品概述
一、产品简介
MSMD050-60V 为台湾陆海（LuHai）出品的自恢复保险丝（Polymeric PTC resettable fuse），封装为 1812 SMD。该器件在负载异常（过流、短路）时通过温度敏感材料升温使电阻显著增加，从而限制电流并保护电路；异常消除后，器件冷却恢复低阻态，实现自动复位。适用于需要反复保护且不便更换熔断器的应用场景。
二、主要参数
- 额定耐压（Vmax）：60 V
- 最大瞬态电流（Imax）：100 A（短时冲击承受能力）
- 保持电流（Ihold）：0.5 A（正常工作时不动作的最大电流）
- 跳闸电流（Itrip）：1 A（在此电流下器件会在规定时间内进入高阻态）
- 功耗（Pd）：800 mW（器件在工作态的额定功耗/热耗散参考）
- 初始态阻值（Rmin）：150 mΩ（冷态低阻特性）
- 跳断后阻值（R1max）：≤1 Ω（高阻态典型限制值）
- 工作温度：-40 ℃ 至 +85 ℃
- 封装：1812（SMD）
三、性能特点
- 低初始电阻：Rmin ≈150 mΩ，能够在低压降下传输额定电流，减少功耗与发热。
- 自恢复保护：发生过流后自动进入高阻态限制电流，故障排除后恢复导通，免维护、无需更换。
- 高频冲击承受能力：短时可承受高达 100 A 的冲击，有利于应对启动电流或浪涌。
- 宽温度范围：-40~+85 ℃ 适合多数工业和消费级环境。
- 适配 60 V 系统：可用于较高电压的直流电源和通信设备。
四、典型应用
- 电源输入保护（便携设备、适配器、工业电源）
- 通信设备与基站线路保护（48 V/60 V 线路）
- USB/外设端口、充电口过流防护
- 电池包与电动工具的短路保护（需配合电路设计）
- LED 驱动与照明系统、家用电器小电流保护
五、选型与使用建议
- 留有余量：建议器件 Ihold ≥ 最大工作电流 × 1.2～1.5，以避免启动或环境升温时误触发；同时确保 Itrip 能够低于故障电流以实现保护。
- 热管理：器件发热与环境温度相关，高环境温度会降低保持电流能力，应适当降额使用或改善散热与布局。
- 布局建议：将器件置于靠近被保护源或输入端，周围保持通风，避免紧贴高发热器件；遵循厂家推荐焊接与回流工艺。
- 配合防护：对于需快速断开的大电流故障，可与机械断路器或熔断器组合使用；对于敏感供电，考虑在多级保护策略中使用本件作为近端自恢复保护。
- 验证试验：在最终产品中进行温升、保持/跳闸时间、循环寿命等实测，以确保在目标工况下满足可靠性需求。
六、可靠性与包装
MSMD050-60V 设计用于长期循环保护，常见失效模式为材料疲劳导致动作特性漂移，推荐在设计初期进行寿命试验与环境应力筛选。器件通常采用卷带或托盘包装，便于贴片加工。关于合规性（如 RoHS）与具体封装尺寸、焊接工艺与曲线，请参考制造商详细数据手册以获得最终设计和生产依据。
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