WMSIC Electronic Components

RUILON RL250-180 RL250

ModelRL250-180
PackageThrough-hole, P=5.1mm
BrandRUILON
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
RUILON RL250-180
Type
RUILON
Minimum package
1000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RUILON
Electronic Component
RL250-180
Electronic Component
1
Package
Through-hole, P=5.1mm
Electronic Component
Resettable Fuse
Electronic Component
0.4g
Electronic Component
10.2mm
Electronic Component
1
Electronic Component
3s
Electronic Component
BM0264254867
Voltage Rating(Vmax)
250V
Power(Pd)
1W
Current(Imax)
3A
Electronic Component
Electronic Component
Electronic Component
1000

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

RL250-180 插件自恢复保险丝产品概述

RL250-180是瑞隆源(RUILON) 推出的一款高压插件式自恢复保险丝,专为电子设备的过流/过温保护设计,可替代传统一次性保险丝,具备重复使用、低损耗、响应稳定等特点,适用于市电供电的中小功率电子设备。

一、产品核心定位与功能

该产品聚焦250V高压场景下的中小电流保护,核心功能是当电路出现过流(如短路、负载过载)时,快速限制故障电流,避免设备损坏或起火;故障排除后,无需更换元件即可自动恢复正常工作,有效降低维护成本与停机时间。

二、关键电气性能参数详解

RL250-180的电气参数针对实际应用场景优化,核心参数及意义如下:

参数名称 规格值 实际应用说明 额定耐压(Vmax) 250V 可承受的最大交流/直流电压,完美适配国内市电(220V)设备 保持电流(Ihold) 180mA(25℃) 25℃环境下,持续通过且不动作的最大电流(电路正常工作电流需≤此值) 跳闸电流(Itrip) 500mA(25℃) 25℃环境下,保证动作的最小电流(过流≥此值时,3秒内跳断) 动作时间 3s(典型值) 过流达到跳闸电流时,从电流触发到阻值跳断的响应时间,满足多数设备保护需求 最大浪涌电流(Imax) 3A 单次浪涌不超过3A(超过可能导致元件永久损坏,需配合浪涌抑制元件使用) 最大消耗功率(Pd) 1W 正常工作时的最大功耗,低损耗不影响电路整体效率 初始最小阻值(Rmin) 800mΩ 常态下的低阻值,信号传输/功率损耗极小,不干扰电路正常功能 跳断后最大阻值(R1max) 9Ω 跳断后呈高阻态,有效限制故障电流至安全范围,避免二次损坏

三、机械与封装特性

  1. 封装形式:插件式(直插),引脚间距(P)为5.1mm,适配标准PCB焊盘设计,无需定制焊盘;
  2. 尺寸规格:长度10.2mm,宽度/高度适配紧凑电路模块,可集成于小型家电、消费电子的内部空间;
  3. 安装方式:手工焊接或波峰焊均可,焊接温度≤260℃、时间≤3s即可完成,适合批量生产与售后维修。

四、工作原理与可靠性

RL250-180采用正温度系数(PTC)聚合物复合材料,工作原理清晰且可靠:

  • 正常状态:电路电流≤180mA时,元件温度低,阻值保持800mΩ左右的低阻态,不影响电路正常工作;
  • 过流触发:电流≥500mA时,电流热效应使PTC材料温度急剧升高,阻值瞬间增大至9Ω以上,限制故障电流,实现“跳闸”保护;
  • 自动恢复:故障排除后,元件温度下降,阻值自动恢复低阻态,理论循环次数达数千次,可重复使用。

可靠性方面,该产品动作时间稳定(3s典型值),跳断后阻值一致性好,耐浪涌能力满足多数应用需求,符合UL、VDE等主流安规认证要求(实际需参考官方最新认证文件)。

五、典型应用领域

结合参数特性,RL250-180适用于以下高性价比场景:

  1. 家用电器:小型家电(加湿器、台灯、桌面风扇、电蚊香器)的过流保护;
  2. 消费电子:便携式充电器、蓝牙耳机充电盒、小型蓝牙音箱、智能手环充电模块;
  3. 工业控制:小型传感器模块、PLC输入输出端子、低压控制继电器;
  4. 通信设备:光纤收发器、小型基站附属模块、无线AP的电源保护。

六、选型与使用注意事项

  1. 选型匹配:电路正常工作电流需≤Ihold的80%(降额使用),如正常电流150mA,选180mA可满足长期稳定工作;
  2. 环境温度:高温环境(如60℃以上)需降额,Ihold约为25℃时的80%,需根据实际温度调整选型;
  3. 焊接要求:避免高温长时间焊接,防止损坏PTC材料内部结构;
  4. 故障排查:跳断后需先排查短路/过载原因,排除故障后再通电,避免重复故障损坏元件。

RL250-180凭借高压适配、低损耗、可重复使用等优势,成为市电供电中小功率设备过流保护的高性价比选择,广泛应用于消费电子、家电等领域,满足量产与成本控制需求。

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