WMSIC Electronic Components

BHFUSE BSMD0805-125-6V BSMD0805

ModelBSMD0805-125-6V
Package0805
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 BSMD0805-125-6V
Type
0805
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
BHFUSE
Electronic Component
BSMD0805-125-6V
Electronic Component
1
Electronic Component
1.5mm
Package
0805
Electronic Component
Resettable Fuse
Electronic Component
0.03g
Electronic Component
2.2mm
Electronic Component
1.5mm
Electronic Component
1
Electronic Component
BM0231067997
Operating Temperature
40℃~+85℃
Voltage Rating(Vmax)
6V
Power(Pd)
1.2W
Current(Imax)
40A

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

BSMD0805-125-6V 自恢复保险丝 产品概述

一、产品简介

BSMD0805-125-6V 是佰宏(BHFUSE)推出的一款0805封装自恢复保险丝(PPTC),适用于对过流保护和短路限流有严格要求的小型电子设备。器件体积仅 2.2mm × 1.5mm × 1.5mm,适合高密度贴片电路板,能在过流时自动跳闸并在故障消除后恢复导通,便于重复保护且无需更换。

二、主要参数

  • 尺寸:长度 2.2mm,宽度 1.5mm,高度 1.5mm(0805 封装)
  • 初始阻值 Rmin:7 mΩ
  • 跳断后阻值 R1max:60 mΩ
  • 保持电流 Ihold:1.25 A
  • 跳闸电流 Itrip:2.5 A
  • 最大持续电流 Imax:40 A
  • 耐压 Vmax:6 V
  • 消耗功率 Pd:1.2 W
  • 工作温度范围:-40 ℃ ~ +85 ℃

三、主要特性与优势

  • 低阻值:初始阻值仅 7 mΩ,有利于降低导通压降和功率损耗,适合对效率敏感的供电路径。
  • 快速自恢复:在短路或过流条件下迅速限流至安全区域,故障解除后自动冷却恢复,降低维护成本。
  • 宽电流范围:虽然保持电流为 1.25 A,器件可承受瞬态或短时间更高电流,最大标称可达 40 A(短时条件,需按应用验证)。
  • 小型封装:0805 贴片封装便于自动化贴装和高度集成的电路设计。

四、典型应用场景

  • USB/充电器保护、电池管理系统的小电流分支保护;
  • 移动设备、穿戴设备、蓝牙模块等便携电子产品的电源输入保护;
  • LED 驱动、小功率电机及外围保护;
  • 工业控制模块和通信设备中对短路保护与重复使用性有需求的分支电路。

五、选型与使用建议

  • 确认工作电压不超过 6V 并考虑电路峰值电压;
  • 选择 Ihold 和 Itrip 时应留有裕量:工作电流应低于 Ihold,防止在正常工作下出现热触发;遇到频繁脉冲电流场合需评估温升与累积效应;
  • 设计时考虑周围散热条件和环境温度,若工作温度接近 85 ℃,需按厂方曲线做降额处理;
  • 可靠焊接采用符合元器件制造商建议的回流工艺,贴装与回流后应进行电气测试确认初始阻值在允许范围内。

六、包装、检验与质保

BHFUSE 提供标准卷带及托盘式封装,适配主流贴片机。出厂前通常进行外观、阻值及跳闸电流等典型测试,建议在收到后按批次做抽样检测以确认关键参数。对于关键应用,建议索取完整数据手册与必要的电热曲线图以便做进一步仿真与设计验证。

如需替代件或更高电压/电流等级,请提供具体应用工况以便推荐合适型号。

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