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BHFUSE BSMD0603L-200 BSMD0603L
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- BHFUSE BSMD0603L-200
- Type
- BHFUSE
- Minimum package
- 4000 编带
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- BHFUSE
- Electronic Component
- BSMD0603L-200
- Electronic Component
- 1
- Package
- 0603
- Electronic Component
- Resettable Fuse
- Electronic Component
- 0.032g
- Electronic Component
- 1
- Electronic Component
- 5s
- Electronic Component
- BM0228072302
- Operating Temperature
- 40℃~+85℃
- Voltage Rating(Vmax)
- 6V
- Power(Pd)
- 1W
- 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.
BSMD0603L-200 自恢复保险丝 产品概述
一、产品简介
BSMD0603L-200 是佰宏（BHFUSE）推出的一款微型自恢复PTC保险元件，封装为0603（1608公制），专为低压、便携和高密度电路的过流与短路保护设计。额定耐压为 6V，适用于 5V USB、锂电池等低电压系统，体积小、响应稳定，便于表面贴装（SMT）自动化生产。
二、主要电气参数
- 耐压 (Vmax)：6V
- 最大电流 (Imax)：50A（瞬态承受能力）
- 保持电流 (Ihold)：2A（在规定环境与温度下长期不触发）
- 跳闸电流 (Itrip)：4A（典型动作触发电流）
- 动作时间：约 5s（在 Itrip 条件下触发）
- 消耗功率 (Pd)：1W（额定功耗）
- 初始阻值 (Rmin)：4 mΩ
- 跳断后阻值 (R1max)：45 mΩ
- 工作温度：-40℃ ~ +85℃
这些参数表明器件在正常工作电流下阻值极低，能量损耗小；一旦过流超过 4A 并持续一定时间，器件阻值上升至预计值以限制电流，故障消除后可自动恢复。
三、关键特性
- 超小封装（0603），适合高密度 PCBA 布局。
- 低导通阻抗（典型 4 mΩ），降低发热与电压跌落。
- 快速自恢复，无需更换，适合重复短路或过流场景。
- 宽温度范围（-40℃ ~ +85℃），适应工业级与消费电子环境。
- 高瞬态耐受能力（50A），对短路冲击具较强的容忍性。
四、典型应用
适用于 5V 或更低电压系统的过流保护，包括但不限于：
- USB 接口、OTG、快充线路保护；
- 移动电源和便携式充电设备；
- 智能穿戴、耳机及小型 IoT 终端电源保护；
- 电池管理与保护电路的一级限流元件。
五、设计与使用建议
- 在选型时以系统最大工作电流及可能的短路冲击为依据，留有余量；Ihold（2A）应大于正常工作电流峰值。
- 注意到动作时间为 5s，短时冲击电流可由器件吸收，但持续过流需依赖触发机制。
- PCB 布局应尽量缩短到电源引线和器件的连接长度，减小额外阻抗与热阻。
- 波峰/回流焊接时遵循厂商的温度曲线，避免长期高温影响特性。
- 对于要求更高可靠性的系统，可在上游增加限流/熔断保护作为冗余。
六、存储与可靠性
- 建议在 5℃~35℃、相对湿度 <70% 的环境下密封存放；避免阳光直射和化学腐蚀性气体。
- 出厂前经过老化与电参数筛选，长期使用受温度与载流情况影响，建议在产品验证阶段做实际工况测试。
BSMD0603L-200 以其微小封装、低阻值与可重复自恢复的特性，适合现代便携和高密度电源保护场景。在实际应用中结合热设计与电流余量评估，能提供可靠且经济的过流保护解决方案。
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