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BHFUSE BSMD1206-075-6V BSMD1206
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- BHFUSE BSMD1206-075-6V
- Type
- BHFUSE
- Minimum package
- 3500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- BHFUSE
- Electronic Component
- BSMD1206-075-6V
- Electronic Component
- 1
- Package
- 1206
- Electronic Component
- Resettable Fuse
- Electronic Component
- 0.041g
- Electronic Component
- 1
- Electronic Component
- 200ms
- Electronic Component
- BM0264819686
- Operating Temperature
- 40℃~+85℃
- Voltage Rating(Vmax)
- 6V
- Power(Pd)
- 600mW
- Current(Imax)
- 100A
- Electronic Component
- Electronic Component
- Electronic Component
- 3500
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
BSMD1206-075-6V 产品概述
一、产品简介
BSMD1206-075-6V 是佰宏（BHFUSE）推出的一款1206封装自恢复式聚合物保险（PPTC），用于低压电子电路的过流保护。该器件在正常工作时阻值低，能通过较大的短时电流；发生过流时迅速升温增阻，实现限流保护，并在故障消除后自动恢复，适合便携设备和分布式保护场景。
二、主要电气参数
- 耐压（Vmax）：6 V
- 最大电流（Imax）：100 A
- 保持电流（Ihold）：0.75 A（750 mA）
- 跳闸电流（Itrip）：1.5 A
- 功耗（Pd）：600 mW
- 初始阻值（Rmin）：90 mΩ
- 跳断后阻值（R1max）：500 mΩ
- 动作时间：200 ms
- 工作温度范围：-40 ℃ 至 +85 ℃
- 封装：1206（SMD）
三、产品特点与优势
- 小尺寸（1206）适合高密度PCB布局，便于自动贴装与回流焊工艺。
- 低初始阻值（90 mΩ）在正常工作下功耗小、发热低，保证信号完整性与系统效率。
- 明确的保持电流与跳闸电流（0.75 A / 1.5 A）便于针对具体负载精确选型。
- 自恢复特性减少了更换成本，提高系统可用性；跳断后阻值上升至500 mΩ，有效限制故障电流。
- 宽温度工作范围，适应室内、车载及部分工业环境使用。
四、典型应用场景
- USB、电源输入口和充电线路过流保护
- 小型电源模块与电池保护（便携式电子、蓝牙设备、智能穿戴）
- 信号线及外围电路防短路、模块级保护
- 工业控制板、消费类电子的分支保护
五、设计与选型建议
- 依据电路持续工作电流选择，使Ihold略高于正常最大工作电流，留有安全裕量（一般10%~30%）。
- 若系统需承受短时冲击电流，请确认器件的Imax与动作时间，以免误动作或损坏。BSMD1206-075-6V 的动作时间约200 ms，适合多数短时浪涌。
- 注意功耗与散热：在高环境温度或长期接近Ihold时，元件温升会影响动作电流，必要时预留散热空间或通过布局减小温度影响。
- 回流焊工艺兼容1206封装，但建议遵循厂方的焊接曲线与回流温度限制，避免过热影响性能。
六、可靠性与注意事项
- 多次过流后器件性能会在可接受范围内变化，但应避免长期在Ihold附近持续工作以延长寿命。
- 对于安全关键型应用，应结合快速断路或熔断保护作为冗余。
- 在高频或对阻抗敏感的应用评估初始阻值对信号的影响，必要时使用低阻抗通路或滤波设计调整。
七、小结
BSMD1206-075-6V 是一款适合低压、分布式过流保护的SMD自恢复保险丝，凭借1206小尺寸、明确的保持/跳闸电流和良好的温度适应性，适用于消费电子、接口保护与模块级安全防护。选型时应综合考虑工作电流、环境温度及冲击电流特性，合理布局与焊接可确保最佳稳定性与使用寿命。
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