WMSIC Electronic Components

BHFUSE BSMD1206-260-6V BSMD1206

ModelBSMD1206-260-6V
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
BHFUSE BSMD1206-260-6V
Type
BHFUSE
Minimum package
3500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
BHFUSE
Electronic Component
BSMD1206-260-6V
Electronic Component
1
Electronic Component
1.9mm
Package
1206
Electronic Component
Resettable Fuse
Electronic Component
0.047g
Electronic Component
3.6mm
Electronic Component
1.6mm
Electronic Component
1
Electronic Component
2s
Electronic Component
BM0257315951
Operating Temperature
40℃~+85℃
Voltage Rating(Vmax)
6V
Power(Pd)
1W

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

BSMD1206-260-6V 产品概述

一、产品简介

BSMD1206-260-6V 为佰宏(BHFUSE)出品的贴片自恢复保险元件(PPTC),采用1206封装,专为低压直流电路提供过流保护而设计。器件在超出设定电流时迅速增阻限流,故障解除后可自动恢复初始导通状态,适合反复保护场景。

二、主要电气参数

  • 额定耐压(Vmax):6 V
  • 最大允许脉冲电流(Imax):100 A(短时冲击能力,应结合具体脉冲宽度与热条件评估)
  • 保持电流(Ihold):2.6 A(在额定环境温度下持续不动作的最大电流)
  • 跳闸电流(Itrip):5.2 A(典型动作电流)
  • 功耗(Pd):1 W(稳态功耗限值,超出需注意降温)
  • 初始态阻值(Rmin):10 mΩ
  • 跳断后阻值(R1max):60 mΩ
  • 动作时间:约 2 s(从过流到显著增阻的典型时间)
  • 工作温度范围:-40 ℃ 至 +85 ℃

三、结构与尺寸

  • 封装:1206 表面贴装封装
  • 尺寸:长度 3.6 mm × 宽度 1.9 mm × 高度 1.6 mm
    该尺寸便于SMT高速贴装,适配常见1206焊盘设计,利于批量生产与自动化组装。

四、性能与可靠性

  • 自恢复特性:短路或过流情况下器件加热并进入高阻态,故障后冷却恢复低阻导通,适合需反复保护的应用。
  • 稳态热管理:Pd 1 W 表明在持续较高电流条件下器件会产生热量,需在PCB布线与散热设计上给予充分考虑,以避免误动作或寿命降低。
  • 温度与环境:-40 ℃ 到 +85 ℃ 的工作温度覆盖大多数工业与消费电子应用,但在高温环境需适当降额设计。

五、典型应用场景

  • USB、Type-C 5V 总线及外围保护(注意总线电压不超过6V)
  • 便携式设备与充电管理模块的短路/过流保护
  • 电池管理与电源模块的次级保护
  • 工业控制与通信设备的局部防护

六、设计与布局建议

  • 将BSMD1206-260-6V放置在靠近受保护线路的入口处,缩短高电流回路,降低PCB寄生阻抗与热积聚。
  • 电流路径应使用加宽铜箔或专用过孔连接多层铜层,以减小功率损耗并增强热扩散能力。
  • 在高脉冲环境中,评估Imax对应的脉冲宽度和重复频率,必要时并联多只器件或采用更大规格保护件。
  • 推荐按常规1206器件回流焊工艺安装,遵循PCB与SMT器件通用回流曲线,避免超温滞留。

七、选型与订购提示

  • 按照电路的最大持续电流选择,使正常工作电流保持低于Ihold以防止误动作。若工作电流接近Ihold,应选择更高规格或并联方案。
  • 注意电路中可能出现的冲击电流(如电机启动、电容充放电)与器件Imax的匹配。
  • 订购时请确认品牌与完整型号(BHFUSE / 佰宏 BSMD1206-260-6V)及包装形式以便于生产领用。

八、使用注意事项

  • 不要在超过6V的电压下使用,避免器件热失稳或损坏。
  • 高频率的反复跳闸会影响器件寿命与电路稳定性,必要时配合限流或熔断器等多层保护方案。
  • 在关键安全类应用中,建议做实际热与电流试验验证并保留冗余保护设计。

如需更详细的特性曲线、温升测试数据或推荐封装焊盘图,请提供项目应用场景与电流/脉冲规格,以便给出更具体的选型与PCB布局建议。

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