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BHFUSE BSMD1206-025-33V BSMD1206
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- BHFUSE BSMD1206-025-33V
- Type
- BHFUSE
- Minimum package
- 3500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- BHFUSE
- Electronic Component
- BSMD1206-025-33V
- 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
- BM0226580896
- 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.
BSMD1206-025-33V 自恢复保险丝 产品概述
一、产品简介
BSMD1206-025-33V 是佰宏（BHFUSE）推出的一款1206封装自恢复保险丝（PTC resettable fuse），专为电子设备的过流保护和短路防护设计。器件在超过设定电流时迅速限流并进入高阻态，故障消除后可自动恢复到低阻态，适合需要重复保护且维护不便的应用场景。
二、主要参数
- 耐压（Vmax）：33 V
- 最大电流（Imax）：40 A
- 保持电流（Ihold）：250 mA
- 跳闸电流（Itrip）：500 mA
- 消耗功率（Pd）：600 mW
- 初始态阻值（Rmin）：350 mΩ
- 跳断后阻值（R1max）：2.5 Ω
- 动作时间：100 ms
- 工作温度：-40 ℃ ~ +85 ℃
- 尺寸（L×W×H）：3.6 mm × 1.9 mm × 1.0 mm
- 封装：1206（SMD）
- 品牌：BHFUSE（佰宏）
三、特点与优势
- 小体积低剖面：1206 封装占板面积小，适合紧凑型电路板设计。
- 可重复自恢复：过流或短路后自动恢复，减少更换成本与维护工作量。
- 快速响应：典型动作时间为 100 ms，可在短路或突发过流时迅速限流保护下游元件。
- 低初始阻值：350 mΩ 保证正常工作时的压降和功耗较低。
- 宽工作温度：-40 ℃ 至 +85 ℃，适合工业级和消费类设备使用。
四、典型应用
- 通信设备、路由器、基站电源保护
- 消费电子（充电器、移动电源）过流保护
- 工业控制与仪表的输入保护电路
- 汽车电子（需确认符合汽车规范后使用）
- USB、I/O接口、DC 电源线保护
五、设计与使用建议
- 布局：建议将自恢复保险丝靠近电源入口放置，以保护后续电路并减少寄生电阻影响。
- 散热：高环境温度会降低 Ihold，设计时需考虑热耦合和周围器件发热影响。
- 选型：Ihold 应高于正常工作电流且低于可能损坏负载的门槛；Itrip 决定触发灵敏度。
- 避免把器件当作开关或长期限流器使用，若长期运行在高温高功耗状态，会影响寿命与特性稳定性。
- 焊接与回流：遵循厂商工艺指导，避免在极限温度下重复加热。
六、可靠性与测试
BSMD1206-025-33V 在常见环境下表现稳定，但在具体项目中建议做实际工况下的老化、循环触发和热稳定性测试，评估在系统温度、电源瞬态及反复跳闸后的性能变化。选型时如需更严格的汽车级或高温可靠性，应向供应商索取详细认证与可靠性报告。
如需进一步资料（典型 I-T 曲线、热阻、推荐焊盘尺寸和再流曲线等），建议联系佰宏（BHFUSE）获取完整数据手册与样品测试支持。
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