WMSIC Electronic Components

JDTfuse A250-1200 A250

ModelA250-1200
PackageThrough-hole
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 A250-1200
Type
JDTFUSE
Minimum package
500 袋装

Technical parameters

Electronic Component
Electronic Component
Electronic Component
JDTFUSE
Electronic Component
A250-1200
Electronic Component
1
Package
Through-hole
Electronic Component
Resettable Fuse
Electronic Component
0.187g
Pitch
5.1mm
Electronic Component
1
Electronic Component
15s
Electronic Component
BM0265001245
Operating Temperature
40℃~+85℃
Voltage Rating(Vmax)
250V
Power(Pd)
4.2W
Current(Imax)
10A
Electronic Component
Electronic Component

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

A250-1200自恢复保险丝产品概述

一、产品定位与核心属性

A250-1200是集电通(JDTfuse) 推出的插件式自恢复保险丝,属于电路过流保护核心器件。其核心价值在于:当电路出现异常过流时快速动作切断电流,故障排除后自动恢复导通,无需人工更换保险丝,有效提升电子设备的可靠性与维护效率。该产品针对中低功率电路的防护需求设计,平衡了保护灵敏度、功耗与环境适应性,适用于多领域电子设备的电源及信号链路防护。

二、关键技术参数深度解析

1. 电流保护特性

  • 保持电流(Ihold):1.2A
    电路正常工作时,若电流≤1.2A,保险丝保持导通状态,无额外损耗;若电流略超1.2A但未达跳闸阈值,器件仍可稳定工作(需注意长期过载风险)。
  • 跳闸电流(Itrip):2.4A
    当电流≥2.4A时,保险丝在15s内触发动作(切断电流),确保故障快速隔离,避免电路元件烧毁。
  • 最大电流(Imax):10A
    可承受的瞬时最大电流(非持续),具备一定过载冗余能力,能应对开机浪涌、瞬时短路等突发情况。

2. 电阻与功耗表现

  • 初始态最小阻值:170mΩ
    低电阻设计大幅降低正常工作时的功率损耗,减少电路发热,提升设备能效。
  • 跳断后最大阻值:420mΩ
    故障排除后,阻值自动回落至低阻状态(≤420mΩ),恢复电路导通,无需更换器件。
  • 额定消耗功率:4.2W
    明确正常工作时的功率上限,避免长期过热导致器件老化,延长使用寿命。

3. 电压与环境适应性

  • 最大工作电压:250V/60V
    双电压等级设计:250V适用于高压交流/直流电路(如家电电源),60V适用于低压直流场景(如工业控制模块)。
  • 工作温度范围:-40℃~+85℃
    覆盖工业级宽温环境,可在极端低温(户外设备)或高温(密闭机箱)场景稳定工作。
  • 最大动作时间:15s
    过流触发后15s内完成动作,兼顾保护速度(避免元件烧毁)与误动作(过滤瞬时浪涌,如雷电冲击)。

三、适用场景与应用优势

1. 典型应用场景

  • 消费电子:手机充电器、小家电(电水壶、榨汁机)的电源输入保护;
  • 工业控制:小型PLC、传感器模块、低压电机的过流防护;
  • 通信设备:路由器、交换机、光模块的电源端口防护;
  • 车载电子:车载充电器、车载显示屏的过流保护(适配-40℃~+85℃的车载环境)。

2. 核心应用优势

  • 自恢复免维护:故障排除后自动复位,无需更换保险丝,降低设备维护成本与 downtime;
  • 低功耗低发热:170mΩ初始阻值+4.2W额定功率,减少电路额外损耗,避免设备过热;
  • 宽温稳定可靠:-40℃~+85℃环境下持续工作,适应 harsh 应用场景;
  • 快速精准保护:2.4A跳闸电流+15s动作时间,既避免瞬时浪涌误动作,又能快速隔离故障电路。

四、封装与可靠性设计

1. 封装形式

采用插件式封装,兼容手工焊接、波峰焊等常规生产工艺,便于集成到各类电路板中,适合批量生产与后期维护。

2. 可靠性设计要点

  • 循环寿命:经过多次过流-恢复测试,确保循环次数符合行业标准(如≥1000次);
  • 过载冗余:10A最大电流设计,可承受瞬时浪涌(如开机冲击),避免误触发;
  • 热稳定性:宽温范围设计结合低功耗,减少温度变化对器件性能的影响,提升长期可靠性。

五、品牌与品质保障

A250-1200由集电通(JDTfuse)生产,该品牌专注于过流保护器件研发10余年,产品符合RoHS、REACH等环保标准,插件封装与参数设计经过严格测试,确保批量应用中的一致性与可靠性,可满足工业级、消费级设备的防护需求。

综上,A250-1200自恢复保险丝凭借自恢复特性、宽温适应性与低功耗设计,成为多领域电子设备过流保护的高性价比选择。

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