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BHFUSE BSMD1206-020-33V BSMD1206
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- BHFUSE BSMD1206-020-33V
- Type
- BHFUSE
- Minimum package
- 3500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- BHFUSE
- Electronic Component
- BSMD1206-020-33V
- Electronic Component
- 1
- Electronic Component
- 1.9mm
- Package
- 1206
- Electronic Component
- Resettable Fuse
- Electronic Component
- 0.036g
- Electronic Component
- 3.6mm
- Electronic Component
- 1mm
- Electronic Component
- 1
- Electronic Component
- 100ms
- Electronic Component
- BM0229474017
- Operating Temperature
- 40℃~+85℃
- Voltage Rating(Vmax)
- 33V
- Power(Pd)
- 600mW
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
BSMD1206-020-33V 产品概述
一、产品简介
BSMD1206-020-33V 是佰宏（BHFUSE）推出的一款SMD自恢复保险丝，采用1206封装，专为低功耗电路的过流保护设计。器件额定耐压33V，保持电流(Ihold)为200mA，跳闸电流(Itrip)为460mA，在遭遇异常过流时能快速进入高阻态切断电流，故障消除后可自动恢复导通，适合便携设备、接口保护及各种板载电源防护应用。
二、主要电气与机械参数
- 耐压（Vmax）：33V
- 保持电流（Ihold）：200mA
- 跳闸电流（Itrip）：460mA
- 最高瞬态电流：40A（短时冲击承受能力）
- 功耗（Pd）：600mW
- 初始态电阻（Rmin）：350mΩ
- 跳断后最大阻值（R1max）：2.7Ω
- 动作时间：约100ms（典型）
- 工作温度范围：-40℃ ~ +85℃
- 外形尺寸：3.6mm × 1.9mm × 1.0mm（1206封装）
三、产品特性与优势
- 自动复位：在过载解除后无需更换元件，降低维护成本。
- 小封装、高可靠：1206贴片封装，便于自动贴装与回流焊，适合集成化设计。
- 快速动作：在超过设定电流时能在约100ms内起保护作用，有效防止后端电路损坏。
- 抗浪涌能力强：可承受高达40A的短时冲击电流，适合含启动冲击或短路瞬变的场景。
- 温度适应宽：-40℃到+85℃的工作温度范围，满足工业级和消费类应用需求。
四、典型应用场景
- USB 和外设供电线路的过流保护。
- 电池管理系统与便携电子设备的短路防护。
- 工业控制、电源模块、通信设备的板级保护。
- LED 照明驱动及传感器电源保护。
五、设计与使用建议
- 选型时应以最大工作电压低于33V为前提，并按实际电路工作温度进行Ihold/Itrip的热降额考虑；高环境温度会降低保持电流与动作电流，建议留有裕量。
- 将器件置于靠近受保护电源输入端的位置，以确保过流时优先动作并保护下游电路。
- 布局时注意热阻与散热路径，避免长期过载导致过高工作温度影响可靠性。
- 焊接建议遵循厂商推荐的回流焊工艺参数，避免长时间过高温度以防性能退化。
六、可靠性与存储
- 器件在额定工作温度范围内长期稳定，耐环境跌落与振动能力适用于常规工业与消费类产品。
- 存储请置于干燥环境，避免潮湿、高温、直射阳光，以保持焊接性与电气性能。
BSMD1206-020-33V 以其小型化、自动复位与良好的浪涌承受能力，为电路提供可靠、低维护的过流保护，是板级和接口保护的理想选择。如需样品、详细温升/热降额曲线或封装图纸，请联系佰宏（BHFUSE）或授权经销商获取完整技术资料。
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