WMSIC Electronic Components

BHFUSE BSMD1206-100-24V BSMD1206

ModelBSMD1206-100-24V
Package1206
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 BSMD1206-100-24V
Type
BHFUSE
Minimum package
3500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
BHFUSE
Electronic Component
BSMD1206-100-24V
Electronic Component
1
Electronic Component
1.9mm
Package
1206
Electronic Component
Resettable Fuse
Electronic Component
0.044g
Electronic Component
3.6mm
Electronic Component
1.4mm
Electronic Component
1
Electronic Component
300ms
Electronic Component
BM0225977995
Operating Temperature
40℃~+85℃
Voltage Rating(Vmax)
24V
Power(Pd)
1W

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

BSMD1206-100-24V 产品概述

BSMD1206-100-24V 是佰宏(BHFUSE)推出的一款1206封装自恢复PTC过流保护器件,针对便携与板载电源的短路/过流保护需求设计。该器件以低初始阻抗、快速动作及良好的可重复复位性为特点,适合USB、充电器、消费类电子与通信设备等场景的过电流保护。

一、主要规格摘要

  • 封装:1206(SMD)
  • 品牌:BHFUSE(佰宏)
  • 标称工作电压:24V max
  • 保持电流(Ihold):1.0A
  • 跳闸电流(Itrip):1.8A
  • 最大允许冲击电流(Imax):40A
  • 初始态阻值(Rmin):50 mΩ
  • 跳断后阻值(R1max):300 mΩ
  • 功耗(Pd):1W
  • 动作时间:300 ms(参考值)
  • 工作温度范围:-40 ℃ 至 +85 ℃
  • 尺寸:长度 3.6 mm × 宽度 1.9 mm × 高度 1.4 mm

二、关键特性与优势

  • 低插入电阻:初始阻值约50 mΩ,减少在额定电流下的功耗与发热,适合对压降敏感的电路。
  • 快速动作与可靠保护:在超过1.8A时能够在约300 ms量级动作,有效限制过流损伤。
  • 自恢复能力:断电或电流恢复到正常范围后阻值回落,可重复使用,降低维护成本。
  • 紧凑SMD封装:1206尺寸便于贴片工艺和高密度PCB布局。
  • 宽温区工作:-40℃至+85℃,适应多种环境条件。

三、典型应用场景

  • USB/外设供电保护(如USB端口、OTG接口)
  • 移动设备与充电器保护电路
  • 各类消费电子板载短路与过流防护
  • 通信设备与工业控制的小电流输入保护

四、使用建议与注意事项

  • 电压限制:请勿超过24V的最大工作电压以免损坏器件。
  • 选型留余量:建议在设计时对Ihold和Itrip做适当裕量,避免工作点长时间接近跳闸阈值导致不必要触发。
  • 热管理:器件功耗Pd为1W,为确保长期稳定,应考虑PCB散热与周边热源影响;环境温度升高会降低实际Itrip。
  • 焊接工艺:适用于表面贴装工艺,建议按照厂方推荐的回流焊温度曲线进行焊接,避免过高温度或长时间加热。
  • 冲击电流:Imax=40A为短时冲击能力,不可作为持续工作电流使用。

五、可靠性与测试

本器件适用于反复过流—恢复循环,具备良好的自愈性。为满足特定应用可靠性要求,建议在最终产品中进行实际工作温度、反复触发寿命与瞬态冲击测试,以验证具体系统条件下的表现。

如需完整技术数据表(TDS)和样品支持,请联系佰宏(BHFUSE)或授权分销商获得详细电流-时间曲线与回流焊工艺建议。

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