WMSIC Electronic Components

BHFUSE BSMD1210-200-6V BSMD1210

ModelBSMD1210-200-6V
Package1210
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
BHFUSE BSMD1210-200-6V
Type
BHFUSE
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
BHFUSE
Electronic Component
BSMD1210-200-6V
Electronic Component
1
Electronic Component
2.8mm
Package
1210
Electronic Component
Resettable Fuse
Electronic Component
0.052g
Electronic Component
3.5mm
Electronic Component
1.4mm
Electronic Component
1
Electronic Component
1s
Electronic Component
BM0231067990
Operating Temperature
40℃~+85℃
Voltage Rating(Vmax)
6V
Power(Pd)
800mW

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

BSMD1210-200-6V 自恢复保险丝 产品概述

一 参数概览

BSMD1210-200-6V(BHFUSE 佰宏,封装 1210)是一款表面贴装型自恢复保险丝,适用于 6V 及以下的电路保护。关键参数如下:耐压 Vmax = 6V;最大瞬时电流 Imax = 100A;保持电流 Ihold = 2A;跳闸电流 Itrip = 4A;功耗 Pd = 800mW;初始阻值 Rmin = 15mΩ;跳断后阻值 R1max = 70mΩ;动作时间(至跳闸)约 1s(典型条件);工作温度范围 -40℃ ~ +85℃;外形尺寸 3.5mm × 2.8mm × 1.4mm。

二 主要特性与工作原理

该器件为 PTC 型自恢复保险丝,常态下阻值低(Rmin≈15mΩ),在电路正常工作时仅产生很小的压降和发热。当通过的电流超过跳闸电流 Itrip(典型 4A),在约 1s 的时间内元件阻值迅速上升(跳断后阻值可达 R1max≤70mΩ),从而限制电流并保护下游器件。故障解除后,元件随温度恢复,阻值回落,器件自动复位,无需更换。

三 典型应用场景

  • 便携式设备与电池管理(低压总线保护)
  • USB、充电口和输入电源防护
  • LED 驱动与消费类电子电源管理
  • 工业控制与通信设备的短路/过流防护

四 使用建议与注意事项

  • 仅用于不超过 6V 的直流电路;若系统可能出现高于 6V 的脉冲或反向电压,应采取额外保护。
  • Ihold 与 Itrip 与环境温度高度相关,推荐按最大工作温度做适当降额设计。
  • Imax=100A 为瞬态承受能力,持续通过高脉冲应考虑热累积与焊盘散热。
  • 布局时避免将热敏元件紧贴,确保良好热散。焊接时遵循元件厂商的回流温度曲线以免损伤元件特性。

五 封装与采购信息

型号:BSMD1210-200-6V;品牌:BHFUSE(佰宏);封装规格:1210(SMD)。适用于自动贴片与回流焊工艺,尺寸小巧,便于高密度板级保护设计。

本产品适合需要自动复位、频繁短路保护且对体积有要求的应用场合。在实际选型时,请结合系统最大工作温度、允许压降及瞬态电流特性进行验证测试。若需更详细的热阻、I–t 曲线及回流焊工艺参数,建议向供应商索取完整数据手册。

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