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BHFUSE BSMD2920L-1200-24V BSMD2920L
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- BHFUSE BSMD2920L-1200-24V
- Type
- BHFUSE
- Minimum package
- 1500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- BHFUSE
- Electronic Component
- BSMD2920L-1200-24V
- Electronic Component
- 1
- Package
- 2920
- Electronic Component
- Resettable Fuse
- Electronic Component
- 0.428g
- Electronic Component
- 1
- Electronic Component
- 5s
- Electronic Component
- BM0264819717
- Operating Temperature
- 40℃~+85℃
- Voltage Rating(Vmax)
- 24V
- Power(Pd)
- 2W
- Current(Imax)
- 30A
- Electronic Component
- Electronic Component
- Electronic Component
- 1500
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
BSMD2920L-1200-24V 产品概述
一、产品简介
BSMD2920L-1200-24V 是佰宏（BHFUSE）推出的一款低阻抗自恢复保险丝（PPTC），采用2920表贴封装并进行涂胶封边工艺，适配紧凑型电源保护场景。器件额定耐压24V，能够在高达30A的瞬时电流下提供过流保护，并具备良好的热稳定与耐候性能，工作温度范围为-40℃至+85℃。
二、主要规格参数
- 最大工作电压（Vmax）：24V
- 最大允许电流（Imax）：30A
- 保持电流（Ihold）：12A
- 跳闸电流（Itrip）：24A（典型）
- 功耗（Pd）：2W
- 初始态电阻（Rmin）：0.5mΩ（低阻设计）
- 跳断后最大电阻（R1max）：7mΩ
- 动作时间：5s（典型触发时间）
- 工作温度：-40℃ ~ +85℃
- 封装：2920（约2.9mm × 2.0mm），涂胶封边工艺提高可靠性
三、产品特点与优势
- 低阻设计：初始电阻仅0.5mΩ级，有效降低压降和发热，适合电源总线、直流母线及高电流路径保护。
- 快速且可控的热触发：在过载或短路情况下，5秒左右触发并进入高阻态（≤7mΩ），能迅速限制电流，保护下游电路。
- 宽温度适应性：-40℃到+85℃的工作范围，适用车载、工业控制、通信及消费电子等多种环境。
- 涂胶封边：封装边缘涂胶增强抗振动、抗湿性与焊接后保护，适合高可靠性要求的SMT应用。
- 表贴小型化：2920封装利于高密度PCB布局与自动化装配。
四、典型应用场景
- 电源管理：板级DC母线保护、开关电源输出短路保护。
- 通信设备：基站、交换设备的输入电源防护。
- 工业与汽车电子：电机驱动前端保护、传感器与执行器供电防短路。
- 消费类电子：笔记本电源、充电设备的安全保护元件。
五、选型与使用建议
- 额定匹配：选型时确保系统工作电压≤24V，持续运行电流低于保持电流12A以避免误动作。若存在较长时间的冲击电流需求，确认Imax和热容是否满足。
- PCB与焊接：2920为标准SMT封装，推荐采用无铅回流焊工艺，注意控制回流峰值温度和时间，避免破坏涂胶层。建议在靠近被保护负载侧留出散热空间及合理的过孔/铜箔以利散热。
- 可靠性考量：长期工作在接近保持电流的状态会提高触发风险，建议在系统设计中留有裕量并结合电流监测或限流措施。
- 储存与环境：避免长期潮湿、高温或强腐蚀性气体环境存放，涂胶能增强防护但不能替代干燥、清洁的库房条件。
六、质量与售后
佰宏（BHFUSE）作为专业的过流保护器件厂商，提供批量一致性和可靠性验证。出厂前经过电气性能与温度循环等测试，能满足工业级应用需求。如需样品、详细电气曲线或应用电路建议，可联系供应商技术支持以获得Datasheet与应用报告。
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