WMSIC Electronic Components

BHFUSE BSMD1812-150-8V BSMD1812

ModelBSMD1812-150-8V
Package1812
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 BSMD1812-150-8V
Type
BHFUSE
Minimum package
1500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
BHFUSE
Electronic Component
BSMD1812-150-8V
Electronic Component
1
Electronic Component
3.41mm
Package
1812
Electronic Component
Resettable Fuse
Electronic Component
0.12g
Electronic Component
4.73mm
Electronic Component
1.3mm
Electronic Component
1
Electronic Component
500ms
Electronic Component
BM0265723828
Operating Temperature
40℃~+85℃
Voltage Rating(Vmax)
8V
Power(Pd)
1W

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

BSMD1812-150-8V 自恢复保险丝产品概述

一、产品基本信息

BSMD1812-150-8V是佰宏(BHFUSE) 推出的一款1812封装贴片自恢复保险丝,属于聚合物自恢复保险丝(PPTC)范畴。核心功能是在电路过流时快速切断电流,故障排除后自动恢复导通,无需人工更换,专为低压直流电路的过流防护设计,兼顾可靠性与维护便捷性。

二、核心电气参数详解

该产品的关键参数明确了其适用场景与防护能力,具体如下:

1. 耐压与电流极限

  • 最大耐压(Vmax):8V,适用于低压直流电路(如5V、12V以下系统);
  • 最大电流(Imax):100A(峰值),可承受瞬间大电流冲击(如设备启动脉冲),避免器件损坏。

2. 过流保护阈值

  • 保持电流(Ihold):1.5A(25℃时),即电路正常工作电流≤1.5A时,保险丝保持导通;
  • 跳闸电流(Itrip):3A(25℃时),当电流超过3A时,保险丝会在500ms内动作跳断,切断过流路径。

3. 电阻特性

  • 初始态最小阻值(Rmin):40mΩ,导通损耗极小,不影响电路正常信号传输;
  • 跳断后最大阻值(R1max):160mΩ,跳断后保持高阻状态,有效限制故障电流,保护负载。

4. 功耗与温度范围

  • 正常工作功耗(Pd):1W,发热低,稳定性好;
  • 工作温度:-40℃~+85℃,覆盖低温(如北方户外设备)与高温(如汽车发动机舱)场景,环境适应性强。

三、物理尺寸与封装优势

封装为1812贴片式,实际尺寸为:

  • 长度:4.73mm,宽度:3.41mm,高度:1.3mm

体积小巧,可节省PCB布局空间,尤其适合小型化设备(如智能手机、可穿戴设备)。贴片封装支持SMT自动化贴装,生产效率高、一致性好,降低人工维护成本。

四、性能优势与应用价值

  1. 自恢复免维护:过流故障(短路、过载)排除后,保险丝自动恢复导通,无需更换,减少设备维护次数(适合无人值守场景,如工业传感器、远程通信设备);
  2. 低阻高效:初始态40mΩ低阻值,导通电压降小,不影响电池供电设备(如手机、手环)的续航;
  3. 宽温稳定:-40℃~+85℃的温度范围,满足汽车电子(低温启动)、工业控制(高温环境)等严苛需求;
  4. 快速可靠保护:500ms动作时间平衡“防误动作”与“快速响应”,避免瞬间脉冲误跳断,同时及时保护负载(如芯片、LED)。

五、典型应用场景

  1. 消费电子:智能手机/平板电池保护、USB Type-C接口过流防护、可穿戴设备电源端防护;
  2. 汽车电子:车载LED灯组(仪表盘、氛围灯)、胎压传感器、车载充电器过流保护;
  3. 工业控制:PLC输入输出模块、小型温湿度传感器节点、低压直流电机防护;
  4. 通信设备:路由器/交换机端口保护、光纤收发器电源端防护;
  5. 电源适配器:5V/12V输出端过流保护,保护适配器与负载。

BSMD1812-150-8V凭借自恢复、低阻、宽温等优势,成为低压电路过流防护的高性价比选择,可有效提升设备安全性与可靠性。

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