WMSIC Electronic Components

BHFUSE BSMD1210-005-30V BSMD1210

ModelBSMD1210-005-30V
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
BHFUSE BSMD1210-005-30V
Type
BHFUSE
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
BHFUSE
Electronic Component
BSMD1210-005-30V
Electronic Component
1
Electronic Component
2.8mm
Package
1210
Electronic Component
Resettable Fuse
Electronic Component
0.061g
Electronic Component
3.5mm
Electronic Component
1.2mm
Electronic Component
1
Electronic Component
1.5s
Electronic Component
BM0265723827
Operating Temperature
40℃~+85℃
Voltage Rating(Vmax)
30V
Power(Pd)
600mW

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

BSMD1210-005-30V 自恢复保险丝产品概述

BSMD1210-005-30V是佰宏(BHFUSE)推出的1210封装聚合物正温度系数(PPTC)自恢复保险丝,核心功能为低压小电流电路的过流/过温保护,故障排除后无需更换即可自动恢复导通,替代传统一次性保险丝可降低维护成本,广泛适用于消费电子、汽车电子等场景。

一、产品定位与核心优势

该器件针对低压小功率电路的可靠性保护设计,核心优势包括:

  1. 自恢复特性:故障排除后自动导通,无需人工更换;
  2. 延时动作:避免瞬间浪涌(如电容充电、开关脉冲)误触发;
  3. 宽温适配:-40℃~+85℃工作范围,满足极端环境需求;
  4. 小体积:1210封装适合高密度PCB布局。

二、关键电气参数详解

各参数直接决定适用场景,具体意义如下:

  • 耐压(Vmax):30V:电路工作电压不得超过30V,适用于5V/12V/24V等低压系统;
  • 保持电流(Ihold):50mA:正常工作电流≤50mA时保持导通,避免正常负载误动作;
  • 跳闸电流(Itrip):150mA:电流≥150mA时触发保护,切断故障电流;
  • 最大电流(Imax):40A:持续工作可耐受的最大电流(非瞬间浪涌);
  • 消耗功率(Pd):600mW:低功耗不影响电路效率;
  • 初始阻值(Rmin):2.8Ω:导通时电阻小,降低电压降对负载的影响;
  • 跳断后阻值(R1max):50Ω:故障时电阻骤增,限制故障电流扩散。

三、封装与物理特性

  • 封装类型:1210(英制尺寸,对应公制约3.2×2.5mm);
  • 实际尺寸:长3.5mm×宽2.8mm×高1.2mm,体积小巧;
  • 工作温度:-40℃~+85℃,可适应汽车低温启动、工业高低温循环等场景。

四、动作特性与可靠性

  • 动作时间:1.5s(跳闸电流下的导通→跳断时间),过滤瞬间浪涌;
  • 自恢复机制:故障排除后(电流消失、温度回落)自动恢复低阻状态,重复动作次数≥5000次;
  • 可靠性验证:经过老化测试、高低温循环测试,符合电子元器件可靠性标准。

五、典型应用场景

结合参数特性,该器件适用于:

  1. 消费电子:手机/平板充电电路、蓝牙耳机电池保护;
  2. 汽车电子:车载仪表盘背光、胎压传感器、小功率控制模块;
  3. 工业控制:小型PLC输入输出模块、远程传感器节点;
  4. 通信设备:路由器/交换机电源支路、以太网接口保护。

六、选型与使用注意事项

  1. 电压匹配:电路工作电压≤30V,避免超压击穿;
  2. 电流匹配:正常电流≤50mA,故障电流≥150mA,确保动作准确;
  3. 环境温度:工作温度在-40℃~+85℃范围内,超出可能导致动作偏移;
  4. 焊接要求:焊盘符合1210规范,回流焊温度≤260℃,避免高温损坏。

BSMD1210-005-30V凭借小体积、宽温适配、自恢复特性,成为低压小电流电路过流保护的高性价比选择。

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