WMSIC Electronic Components

JDTfuse ASMD1812-050-60V ASMD1812

ModelASMD1812-050-60V
Package1812
BrandJDTfuse
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
JDTfuse ASMD1812-050-60V
Type
JDTFUSE
Minimum package
1500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
JDTFUSE
Electronic Component
ASMD1812-050-60V
Electronic Component
1
Electronic Component
3.41mm
Package
1812
Electronic Component
Resettable Fuse
Electronic Component
0.111g
Electronic Component
4.73mm
Electronic Component
1.8mm
Electronic Component
1
Electronic Component
150ms
Electronic Component
BM0265001260
Operating Temperature
40℃~+85℃
Voltage Rating(Vmax)
60V
Power(Pd)
800mW

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

ASMD1812-050-60V 产品概述

一、产品简介

ASMD1812-050-60V 是 JDTfuse(集电通)推出的一款性能稳定、性价比高的微型表面贴装自恢复保险元件(PPTC类保护器件)。该器件专为中低电压电路提供过流保护设计,能在短路或持续过流情况下自动限流并在故障消除后恢复正常工作,适合批量生产和自动化贴装工艺。

二、主要参数

  • 耐压(Vmax):60 V
  • 最大电流(Imax):100 A(短时浪涌承受能力)
  • 保持电流(Ihold):500 mA(常温下连续允许电流)
  • 跳闸电流(Itrip):1 A(典型动作电流)
  • 功耗(Pd):800 mW
  • 初始态阻值(Rmin):150 mΩ
  • 跳断后阻值(R1max):1.4 Ω
  • 动作时间:150 ms(在规定过流条件下)
  • 工作温度:-40 ℃ ~ +85 ℃
  • 封装:1812(SMD)
  • 尺寸:长 4.73 mm × 宽 3.41 mm × 高 1.8 mm
  • 品牌:JDTfuse(集电通)
  • 产品特性:品质稳定,性价比高

三、性能特点

  • 可靠的自恢复保护:在电路出现过流或短路时,器件会迅速升阻限流,保护下游元件;故障排除后恢复低阻态,减少更换维护成本。
  • 低初始电阻:Rmin 150 mΩ,有助于降低正常工作时的压降和发热。
  • 明确的动作与保持电流:Ihold 500 mA,Itrip 1 A,便于在电路设计阶段准确选择保护门限。
  • 良好的浪涌承受能力:短时最大电流可达 100 A,适应启动浪涌或瞬态冲击。
  • 宽温度适应性:-40 ℃ 至 +85 ℃ 的工作温度区间,满足多数工业与消费类应用环境要求。
  • SMD 封装适配自动化生产:1812 尺寸便于回流焊贴装,节省 PCB 面积并提升组装效率。

四、典型应用场景

  • 电源管理:开关电源输入、二次侧保护、备用电源线路。
  • 通信与网络设备:路由器、交换机、电源转换模块的过流保护。
  • 存储与外设:硬盘驱动器、外置存储盒、USB/充电接口保护。
  • 工业与消费电子:测控设备、家用电器、小型电机驱动保护。
  • 电池与便携设备:电池包保护、电源路径限流(注意环境温度与连续电流匹配)。

五、封装与安装建议

ASMD1812-050-60V 采用 1812 SMD 封装,尺寸 4.73 × 3.41 × 1.8 mm,适用于常规回流焊工艺。建议在设计 PCB 布局时考虑器件散热及与热源的距离,必要时增加铜厚或散热铜箔以降低温升。具体回流温度曲线与焊接工艺请参照厂方详细资料以保证可靠焊接。

六、可靠性与使用注意

  • 该器件为自恢复类型,不适合用作持续短路时的长期断路开关。
  • 跳闸后阻值会升至最高 1.4 Ω,可能影响后续电路启动,需根据系统需求评估恢复时间。
  • 在高温环境或长期接近 Ihold 的工况下,器件寿命与动作特性会随温度变化,设计时留有安全裕量。
  • 如需频繁承受高浪涌或长时间大电流,建议选择额定值更高的型号或并联使用并经测试验证。

七、选型与采购建议

本型号适合要求体积小、面向批量生产且需要可靠过流保护的场合。订购时请确认电路最大持续电流与过流门限,若实际工作电流接近 Ihold,应选型更高裕量的产品。关于包装形式(如盘装/带卷)和更详细的电气特性曲线,可联系 JDTfuse(集电通)获取完整数据手册与样品验证。

总结:ASMD1812-050-60V 提供了稳定的保护性能与较高的性价比,适合广泛的电子设备过流保护需求,在正确的工况与安装下可显著提升产品的可靠性与安全性。

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