WMSIC Electronic Components

BHFUSE BSMD1206L-300-16V BSMD1206L

ModelBSMD1206L-300-16V
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 BSMD1206L-300-16V
Type
BHFUSE
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
BHFUSE
Electronic Component
BSMD1206L-300-16V
Electronic Component
1
Package
1206
Electronic Component
Resettable Fuse
Electronic Component
0.053g
Electronic Component
1
Electronic Component
BM0264819706
Operating Temperature
40℃~+85℃
Voltage Rating(Vmax)
16V
Power(Pd)
1.2W
Current(Imax)
50A
Electronic Component
Electronic Component
Electronic Component
3000
Latching Current(Ihold)
3A

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

BSMD1206L-300-16V 产品概述

一、产品概述

BSMD1206L-300-16V 为佰宏(BHFUSE)推出的1206封装表面贴装自恢复保险元件(PPTC),专为低压、高可靠性电源保护设计。该器件在正常工作时保持极低阻值,发生过流或短路时迅速升温增阻以限制电流,故障解除后能够自动恢复导通,适合对可重复保护和空间受限的消费电子、通信及工业设备。

二、主要技术参数

  • 耐压(Vmax):16 V
  • 最大电流(Imax):50 A(短时承受能力)
  • 保持电流(Ihold):3 A(在规定温度下长期不跳闸的最大电流)
  • 跳闸电流(Itrip):6 A(在规定条件下会触发阻值迅速上升的电流)
  • 消耗功率(Pd):1.2 W(最大功耗,注意热管理)
  • 初始态阻值(Rmin):4 mΩ
  • 跳断后阻值(R1max):22 mΩ
  • 工作温度:-40 ℃ ~ +85 ℃
  • 封装:1206 SMD

三、主要特性与优势

  • 低初始电阻(Rmin 4 mΩ),对正常供电影响小,有利于降低压降与功耗。
  • 清晰的保持/跳闸电流界定(Ihold 3A、Itrip 6A),便于在设计中直接选型并满足过流保护需求。
  • 自动复位,避免更换元件,提升维护便利性与系统可用性。
  • 1206 小体积封装,适配高密度贴片板设计,节省空间。
  • 宽工作温度范围,适应一般工业和消费级环境。

四、典型应用场景

  • USB、移动电源及便携设备的接口和负载保护。
  • 模块化电源、通信终端及路由器的输入保护。
  • 电池管理系统、充电管理电路的短路/过流防护。
  • 工业控制和物联网终端等对可靠性有要求的中低压电路。

五、选型与使用注意

  • 确定Ihold应高于电路正常工作最大持续电流,且小于短路或异常时希望被限制的电流;一般建议留有一定余量以避免温漂导致误触发。
  • Itrip 表示在规定条件下会跳闸的典型电流,实际跳闸时间受环境温度与电路布局影响,敏感场合应结合实验验证。
  • Pd(最大耗散功率)决定了器件在特定电流下的热平衡能力,长时间接近Pd会影响寿命或导致误动作,应在设计中考虑散热与功率分配。
  • 注意最大承受瞬时电流(Imax 50A)为短时能力,不作为持续工作电流依据。

六、封装与焊接建议

  • 采用标准1206贴片工艺,建议遵循供应商提供的回流焊温度曲线以保证可靠焊接。
  • 布局上建议将器件靠近电源输入或被保护负载,且避免置于连续高温元件正上方,利于热量散发与准确动作。
  • 焊盘设计应保证良好热导和机械固定,同时留意不要在元件上施加过大机械应力。

七、可靠性与测试建议

  • 在量产前进行在温表征(-40℃~+85℃)、过流触发与恢复测试、反复循环跳闸测试以验证在目标工况下的稳定性。
  • 对关键应用建议加做浪涌、短路故障模拟与车辆/工业级电磁兼容测试,确保系统整体安全性。

八、结论

BSMD1206L-300-16V 以其低电阻、小封装和明确的保持/跳闸参数,适合中低电压、高可靠性且空间受限的电路过流保护需求。在选型时应结合实际工作电流、温度与热管理策略,并按供应商焊接规范进行工艺控制,以保证长期稳定运行。若需更详细的温度-电流曲线和回流参数,请向佰宏索取完整规格书与应用说明。

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