WMSIC Electronic Components

BHFUSE BSMD0603-050-12V BSMD0603

ModelBSMD0603-050-12V
Package0603
BrandBHFUSE
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
BHFUSE BSMD0603-050-12V
Type
0603
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
BHFUSE
Electronic Component
BSMD0603-050-12V
Electronic Component
1
Electronic Component
1.05mm
Package
0603
Electronic Component
Resettable Fuse
Electronic Component
0.027g
Electronic Component
1.85mm
Electronic Component
1.15mm
Electronic Component
1
Electronic Component
100ms
Electronic Component
BM0226544159
Operating Temperature
40℃~+85℃
Voltage Rating(Vmax)
12V
Power(Pd)
500mW

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

BSMD0603-050-12V 产品概述

一、产品简介

BSMD0603-050-12V 为 BHFUSE(佰宏)推出的 0603 封装表面贴装自恢复保险(PTC),面向 12V 供电系统的过流保护需求。器件体积小(尺寸约 1.85×1.05×1.15mm),适合空间受限的移动设备、车载电子、通信与便携终端等场景。

二、主要规格参数

  • 额定工作电压:12V(Vmax)
  • 保持电流:Ihold = 500mA(典型保持)
  • 跳闸电流:Itrip = 1A(触发保护)
  • 跳断后最大阻值:R1max = 800mΩ
  • 初始态阻值:Rmin = 100mΩ
  • 最大允许电流(瞬时/耐受):Imax = 40A
  • 功耗(Pd):500mW(最大功耗)
  • 动作时间:100ms(典型响应)
  • 工作温度范围:-40℃ ~ +85℃
  • 封装:0603(SMD),品牌:BHFUSE(佰宏)

三、特点与优势

  • 体积小、重量轻,便于自动贴装与批量生产。
  • 初始阻值低(≈100mΩ),正常工作时压降与能耗小。
  • 快速动作(约100ms)可有效限制短路或突发过流。
  • 跳闸后阻值上升至 ≤800mΩ,实现限流保护并可自恢复,免去更换元件。
  • 可承受高达 40A 的瞬态冲击,适合电机起动或电源冲击环境。

四、典型应用场景

  • 汽车 12V 子系统(仪表、模块电源保护、传感器供电)
  • 工业与楼宇自动化低压控制回路
  • 便携式设备与通信终端的输入过流保护
  • USB/点烟器等 12V 外设保护

五、布局与使用建议

  • 推荐按厂商提供的 0603 推荐焊盘尺寸布局,保证可靠焊接与热耗散。
  • 器件功耗 Pd=500mW,应考虑PCB铜皮面积与散热路径以避免长时间过热。
  • 实际工作电流应保留裕量,建议持续工作电流低于 Ihold(例如 ≤80% Ihold)以防误动作。
  • 遵循无铅回流焊温度曲线,避免超出封装与内部材料的温度限制。

六、可靠性与注意事项

  • 器件为自恢复性质,跳闸后需等待冷却才能复位;循环熔断次数会影响长期性能。
  • 在高温环境或高功率持续条件下,应验证器件在目标环境下的热稳定性与动作特性。
  • 对于关键安全电路,建议并联或配合熔断器、限流电阻等多重保护策略。

如需详细电气特性曲线、焊盘推荐图或应用样例,请联系 BHFUSE(佰宏)技术支持获取完整数据手册与验证资料。

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