WMSIC Electronic Components

BHFUSE BSMD1812-260-13.2V BSMD1812

ModelBSMD1812-260-13.2V
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 BSMD1812-260-13.2V
Type
BHFUSE
Minimum package
1500 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
BHFUSE
Electronic Component
BSMD1812-260-13.2V
Electronic Component
1
Electronic Component
3.41mm
Package
1812
Electronic Component
Resettable Fuse
Electronic Component
0.127g
Electronic Component
4.73mm
Electronic Component
1.5mm
Electronic Component
1
Electronic Component
2.5s
Electronic Component
BM0264819707
Operating Temperature
40℃~+85℃
Voltage Rating(Vmax)
13.2V
Power(Pd)
1W

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

BSMD1812-260-13.2V自恢复保险丝产品概述

佰宏(BHFUSE)推出的BSMD1812-260-13.2V是一款1812贴片封装的自恢复保险丝,专为低电压大电流场景的过流保护设计,集成了快速响应、自恢复特性与紧凑尺寸,适配消费电子、IoT、汽车电子等高密度设备的需求。

一、产品核心参数深度解析

该产品的关键参数精准匹配低电压大电流保护场景,核心参数及实际意义如下:

  • 耐压(Vmax):13.2V:为元件最大工作电压,超过此值会导致内部材料损坏,适配5V、12V等常见低压系统;
  • 电流参数:保持电流(Ihold)2.6A(正常工作不触发保护的最大电流,可满足多数便携设备的额定电流需求)、跳闸电流(Itrip)5.2A(过载时触发保护的阈值,约为保持电流的2倍,符合自恢复保险丝的常规设计逻辑,避免短暂脉冲误触发);
  • 阻值特性:初始态最小阻值10mΩ(低阻设计大幅减少自身功耗,降低设备发热),跳断后最大阻值70mΩ(有效限制过载电流,切断危险回路);
  • 动作时间:2.5s:平衡了误触发风险与保护速度——既避免短暂浪涌电流(如开机脉冲)导致的误动作,又能在持续过载时及时切断电路,保护后端元件;
  • 耗散功率(Pd):1W:最大允许自身耗散功率,结合低阻值可有效控制工作温度,提升长期可靠性;
  • 工作温度:-40℃~+85℃:覆盖宽温范围,适应低温户外、高温车载等极端环境应用。

二、封装与尺寸规格

产品采用1812贴片封装(英制0.18×0.12英寸,公制4.73×3.41×1.5mm),属于小型贴片封装,具备以下优势:

  • 适配高密度PCB布局:适合手机、智能穿戴等小型化设备的紧凑设计,不占用额外空间;
  • 贴片安装便捷:可通过SMT工艺批量生产,提高生产效率,降低人工成本;
  • 轻量化设计:尺寸小巧、重量轻,满足便携设备的轻量化需求。

三、典型应用场景

结合参数特性,该产品适用于以下场景:

  1. 消费电子便携设备:手机、蓝牙耳机、移动电源(5V/2.4A快充场景,低阻设计减少发热,提升续航体验);
  2. IoT与智能硬件:传感器节点、智能手表、智能家居控制器(宽温范围适应户外/室内环境,自恢复特性降低维护成本);
  3. 小型直流电源模块:5V/12V输出的电源适配器、车载USB充电口(低压大电流保护,避免短路损坏);
  4. 汽车电子辅助系统:车载记录仪、氛围灯、胎压监测(-40℃~+85℃适应车载温区,保障极端环境下的可靠性)。

四、性能优势总结

  1. 低阻低功耗:初始10mΩ阻值使自身发热极小,耗散功率1W确保长期稳定工作,不影响电路效率;
  2. 自恢复免维护:故障排除后自动恢复导通,无需手动更换保险丝,降低设备维护成本,提升设备可用性;
  3. 快速响应保护:跳闸电流5.2A与2.5s动作时间,可有效切断过载电流,避免后端元件(如电池、芯片)损坏;
  4. 宽温可靠性:-40℃~+85℃工作温度,适应低温户外、高温车载等极端环境,满足工业级可靠性要求;
  5. 环保与兼容性:符合RoHS无铅要求,适配各类电子设备的环保标准,可用于出口产品。

五、工作原理与保护逻辑

BSMD1812-260-13.2V采用正温度系数(PTC)聚合物材料,工作逻辑清晰:

  • 正常电流下:材料温度低,阻值保持10mΩ左右,电路导通,功耗极低;
  • 过载时:电流超过5.2A,材料发热导致阻值急剧上升至70mΩ,限制电流并切断过载回路;
  • 故障排除后:温度下降,阻值恢复至初始低阻,电路重新导通,实现自恢复保护。

六、总结

BSMD1812-260-13.2V自恢复保险丝针对低电压大电流、高密度设计需求,平衡了保护性能、尺寸与可靠性,是消费电子、IoT、汽车电子等领域过流保护的理想选择,可有效提升设备的安全性与使用寿命。

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