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BHFUSE BSMD0805L-150-12V BSMD0805L
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- BHFUSE BSMD0805L-150-12V
- Type
- BHFUSE
- Minimum package
- 4000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- BHFUSE
- Electronic Component
- BSMD0805L-150-12V
- Electronic Component
- 1
- Package
- 0805
- Electronic Component
- Resettable Fuse
- Electronic Component
- 0.042g
- Electronic Component
- 1
- Electronic Component
- 5s
- Electronic Component
- BM0264819697
- Operating Temperature
- 40℃~+85℃
- Voltage Rating(Vmax)
- 12V
- Power(Pd)
- 1.2W
- Current(Imax)
- 50A
- Electronic Component
- Electronic Component
- Electronic Component
- 4000
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
BSMD0805L-150-12V 产品概述
一、产品简介
BSMD0805L-150-12V 为佰宏（BHFUSE）推出的低阻自恢复保险元件（PTC resettable fuse），采用0805贴片封装并采用低阻涂胶封边工艺，针对空间受限、需高浪涌承受能力与低导通损耗的便携与工业电源保护场景设计。其基础电气参数为：耐压 12V、最大脉冲电流 50A、保持电流 1.5A、跳闸电流 3A，动作时间约 5s，额定功耗 1.2W（Pd）。初始态阻值 Rmin 为 8mΩ，跳断后阻值 R1max ≤ 60mΩ，工作温度范围 -40℃~+85℃。
二、主要特点
- 低阻抗设计：初始态仅 8mΩ，最小化导通电压降与功率损耗，适合对效率要求高的电源路径。
- 高浪涌承受能力：短时峰值电流可达 50A，能有效吸收瞬态启动与浪涌电流，保护下游电路免受过流损伤。
- 可复位保护：触发后阻值升高（≤60mΩ）切断过流路径，故障消除后自动恢复，适合需长期可靠运行的系统。
- 低阻涂胶封边：封边工艺改善环境密封性与机械稳定性，降低污染、湿气对器件性能的影响，提升长期可靠性。
- 贴片封装：0805 标准封装，兼容自动贴装与回流工艺，便于批量生产与板级集成。
三、典型应用
- 移动电源、充电器与便携式设备电源输入保护
- USB、Type-C 接口过流保护与多端口电源分配
- 小功率电机、继电器驱动及启动电流抑制
- 工业控制板、电池管理与电源模块的过流保护
- 汽车电子的非关键子系统保护（在符合工作温度范围内）
四、设计与布局建议
- 布局：建议将器件靠近电源输入或受保护负载侧，并为其提供良好的热散路径，周边尽量避免热源直射。
- 热管理：尽管器件耐短时大电流，长时间高电流会导致发热并影响动作特性，需按实际工况做电流与散热评估。
- 电流裕量：选择保持电流与跳闸电流时，应考虑启动浪涌与短时峰值，确保正常工作电流不导致误动作，但在故障时仍能快速触发保护。
- 焊接与可靠性：兼容常规回流焊流程（请参照佰宏出厂推荐焊接曲线），回流时避免超温或机械应力集中，装贴后避免强力挤压封边区域。
五、可靠性与选型要点
在选型时关注系统的最大允许电压（不得超过 12V）、常态工作电流与可能出现的瞬态浪涌。BSMD0805L-150-12V 适合取代传统一次性熔断器的多次复位保护需求场景，能在限制空间内提供低功耗、可复位且耐浪涌的保护方案。结合 PCB 热模拟与实际工况验证，可获得最佳保护效果与使用寿命。
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