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BHFUSE BSMD2920L-1000-16V BSMD2920L
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- BHFUSE BSMD2920L-1000-16V
- Type
- BHFUSE
- Minimum package
- 1500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- BHFUSE
- Electronic Component
- BSMD2920L-1000-16V
- Electronic Component
- 1
- Package
- 2920
- Electronic Component
- Resettable Fuse
- Electronic Component
- 0.318g
- Electronic Component
- 1
- Electronic Component
- 5s
- Electronic Component
- BM0257686110
- Operating Temperature
- 40℃~+85℃
- Voltage Rating(Vmax)
- 16V
- Power(Pd)
- 1.5W
- Current(Imax)
- 50A
- 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-1000-16V 产品概述
一、产品简介
BSMD2920L-1000-16V 是佰宏（BHFUSE）推出的一款贴片自恢复保险丝（PTC resettable fuse），采用 2920 封装（约 2.9 × 2.0 mm），专为需要过流保护且要求低阻抗、高响应性的便携电源和电源管理应用设计。器件在正常工作时阻值极低，出现异常过流时在规定时间内跳闸并在故障消除后自动恢复，适合反复保护需求的电路。
二、主要电气参数
- 额定耐压（Vmax）：16 V
- 最大通过电流（Imax）：50 A
- 保持电流（Ihold）：10 A（器件在此电流下保持低阻态）
- 跳闸电流（Itrip）：20 A（在规定条件下触发升温致动）
- 消耗功率（Pd）：1.5 W（额定条件下最大耗散）
- 初始态阻值（Rmin）：0.5 mΩ（低热耗、低压降）
- 跳断后最大阻值（R1max）：8 mΩ（限制过流）
- 动作时间：5 s（从过流到显著升温跳闸的参考时间）
- 工作温度范围：-40 ℃ ～ +85 ℃
三、关键特性与优势
- 低初始阻值：0.5 mΩ 的超低导通电阻，有效降低待机与工作电压降，适合高电流路径。
- 快速自恢复：在短时过流情况下（典型 5 s 动作），器件升温限流，故障解除后自动恢复，无需更换。
- 宽工作温度：-40 ℃ 至 +85 ℃，可满足汽车辅助、工业及消费电子等多种环境。
- 小型化封装：2920 SMD 封装便于自动贴装，节省 PCB 面积，利于高密度布局。
- 大电流承受能力：50 A 最大通过能力，适用于电机驱动、功率分配以及输入保护等场景。
四、典型应用场景
- 移动设备电源输入保护（充电器、移动电源）
- 汽车电子低压电源总线与分配保护（需注意使用环境与标准相容性）
- 工业控制模块、通信设备的短路/过流保护
- 电机驱动辅助回路与大电流开关前的保护元件
五、使用注意事项与安装建议
- 请根据实际电流谱和环境温度进行 Ihold/Itrip 的热回路校核，必要时留有裕量并考虑并联或选择更高规格器件。
- 贴片焊接建议采用标准回流工艺，避免过长高温暴露导致性能漂移；回流温度曲线参照厂方建议。
- 若用于汽车或严苛工业环境，建议配合热量散布设计（铜箔加厚、散热面）以降低工作温升。
- 器件恢复时间与热沉条件相关，频繁触发时可能出现响应延迟或降额。
六、选型与替代建议
- 若需更低压降或更高持续电流，可在同系列或其他封装查找更低 Rmin 或更高 Ihold 的型号。
- 在高工作电压或更严格认证（如 AEC-Q）场景，应确认器件相应等级或选择专用汽车级保护件。
总体而言，BSMD2920L-1000-16V 以其低阻、高电流能力和自恢复特性，适合要求体积小、耐久可靠且需重复保护的电源和功率路径场合。对于具体系统集成，建议结合实际热仿真和实验验证最终选型与布局。
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