WMSIC Electronic Components

BHFUSE BSMD0603-020-24V BSMD0603

ModelBSMD0603-020-24V
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
BHFUSE BSMD0603-020-24V
Type
BHFUSE
Minimum package
4000 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
BHFUSE
Electronic Component
BSMD0603-020-24V
Electronic Component
1
Electronic Component
1.05mm
Package
0603
Electronic Component
Resettable Fuse
Electronic Component
0.024g
Electronic Component
1.85mm
Electronic Component
1mm
Electronic Component
1
Electronic Component
600ms
Electronic Component
BM0228072379
Operating Temperature
40℃~+85℃
Voltage Rating(Vmax)
24V
Power(Pd)
500mW

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

BSMD0603-020-24V 产品概述

一、产品简介

BSMD0603-020-24V 是佰宏(BHFUSE)推出的一款微型自恢复保险器(PTC resettable fuse),封装为0603(1.85mm × 1.05mm × 1.00mm),专为空间受限、对过流保护要求高的便携及消费类电子产品设计。该器件在超出设定电流时快速限流、在故障清除后自动恢复,避免了传统一次性保险丝的更换成本与维护复杂性。

二、主要技术参数

  • 额定耐压(Vmax):24 V
  • 最大脉冲耐受电流(Imax):40 A(短时冲击能力)
  • 保持电流(Ihold):200 mA(典型)
  • 跳闸电流(Itrip):500 mA(典型)
  • 跳断后最大阻值(R1max):3.5 Ω
  • 初始态阻值(Rmin):0.55 Ω
  • 最大功耗(Pd):500 mW(稳态功耗限制)
  • 动作时间:600 ms(典型,从0至跳闸)
  • 工作温度范围:-40 ℃ ~ +85 ℃

三、产品特点与优势

  • 超小封装:0603 尺寸,适合高密度 PCB 设计与微型化终端。
  • 快速限流:在故障出现时于约600 ms 内动作,保护后级电路与元器件。
  • 可重复恢复:过流消除后自动恢复导通,无需更换,降低维护成本。
  • 强耐冲击能力:短时可承受高达40A 的浪涌电流,适用于含感性负载或瞬态冲击场合。
  • 宽温度范围:-40℃ 至 +85℃,满足工业级及民用环境需求。

四、典型应用

  • 手机、平板和可穿戴设备的电源保护
  • 摄像头模组、物联网终端、电池管理前级保护
  • USB、Type-C、HDMI 等接口过流保护
  • 工业控制小功率回路、传感器供电线路保护

五、封装与机械尺寸

封装:0603 表面贴装,外形尺寸 1.85 mm × 1.05 mm × 1.00 mm(长×宽×高),便于自动贴装与回流焊接。建议在 PCB 设计时为器件提供适当的铜箔散热与焊盘,以利于热量均匀分布并保证可靠动作。

六、选型与使用建议

  • 确保 Ihold 大于正常工作电流且与 Itrip 有合理裕度(通常 Itrip ≈ 2–3× Ihold)。本型号 Ihold=200 mA,Itrip=500 mA,适合微小负载保护。
  • 注意 Pd(500 mW)为稳态最大耗散,实际电阻与环境温度会影响功耗能力。高环境温度或受限散热时需保守选型或增大旁路/保护策略。
  • 对于存在持续高能脉冲的场景,除器件标称的短时 Imax 外,应评估脉冲次数与间隔以避免过热损伤。
  • 在高速或敏感信号线上使用时,考虑到初始电阻约 0.55 Ω,需评估对电压降与信号完整性的影响。

七、储存与焊接注意事项

  • 推荐采用标准 SMD 回流焊工艺,遵守温度曲线以避免过热导致性能退化。
  • 储存环境应干燥、避免强光直射与腐蚀性气体;长期存放建议按照湿敏等级(如有)处理或回流前预烘。
  • 焊盘设计与 PCB 铜箔面积会影响器件散热与动作特性,实际布局请参考佰宏提供的推荐焊盘与热仿真数据。

八、总结

BSMD0603-020-24V 以其超小体积、可靠的自恢复保护与较强的短时冲击承受能力,适用于对体积和可靠性有较高要求的便携及消费电子、电源接口保护场景。在选型时应综合考虑保持电流、跳闸电流、稳态功耗与工作温度等因素,确保在目标应用中获得最佳保护效果。如需更详细的电气特性曲线、焊盘建议或样品测试数据,建议联系佰宏(BHFUSE)或认证分销商获取完整数据手册。

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