WMSIC Electronic Components

RUILON SMD2018P050TF

ModelSMD2018P050TF
Package2018
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 SMD2018P050TF
Type
RUILON
Minimum package
1500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RUILON
Electronic Component
SMD2018P050TF
Electronic Component
1
Electronic Component
4.93mm
Package
2018
Electronic Component
Resettable Fuse
Electronic Component
0.095g
Electronic Component
5.44mm
Electronic Component
1.2mm
Electronic Component
1
Electronic Component
3s
Electronic Component
BM0264919855
Operating Temperature
40℃~+85℃
Voltage Rating(Vmax)
60V
Power(Pd)
1W

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

SMD2018P050TF自恢复保险丝产品概述

SMD2018P050TF是瑞隆源(RUILON)推出的一款表面贴装(SMD)自恢复保险丝,专为电子设备的过流、过载保护设计,具备小型化、宽温适应性、低损耗等特点,可替代传统一次性保险丝,减少维护成本与空间占用。

一、产品基本信息

  • 品牌与型号:RUILON(瑞隆源)SMD2018P050TF
  • 产品类型:聚合物自恢复保险丝(PPTC)
  • 封装规格:SMD2018封装,公制尺寸为长5.44mm×宽4.93mm×高1.2mm,符合小型化高密度PCB设计需求
  • 核心特性:过流过载后自动恢复导通,无需手动更换;常态低阻值,减少电路功率损耗

二、核心电气参数详解

SMD2018P050TF的电气参数经过严格测试,关键指标如下:

  1. 耐压性能:最大直流耐压(Vmax)为60V,可满足多数低压电子电路的电压需求(如5V、12V、24V系统)。
  2. 电流能力:
    • 最大持续电流(Imax):10A(短时间峰值电流承受能力);
    • 保持电流(Ihold):550mA(环境温度下,能稳定保持不动作的最大电流,选型时需确保电路正常工作电流≤此值);
    • 跳闸电流(Itrip):1.2A(触发过流保护动作的最小电流,即电路电流≥1.2A时,3秒内自动跳断)。
  3. 阻值特性:
    • 初始态最小阻值(Rmin):200mΩ,常态下几乎不影响电路正常工作;
    • 跳断后最大阻值(R1max):1Ω,跳断后维持高阻状态,有效限制故障电流扩散。
  4. 其他参数:
    • 消耗功率(Pd):1W(正常工作时的功率损耗,控制发热在安全范围);
    • 动作时间:3s(在跳闸电流下的响应时间,兼顾保护及时性与避免误动作);
    • 工作温度范围:-40℃~+85℃,适应工业控制、户外设备等宽温场景。

三、机械结构与封装优势

该产品采用SMD2018贴片封装,具备以下结构优势:

  1. 小型化设计:尺寸仅5.44×4.93×1.2mm,可节省PCB布局空间,适合智能手机、智能穿戴、小型电源模块等紧凑设备;
  2. 焊接兼容性:支持回流焊、波峰焊等自动化贴片工艺,焊接温度峰值≤260℃(回流焊)、≤250℃(波峰焊),满足批量生产要求;
  3. 耐环境性能:封装材料具备良好的耐温、耐湿性能,配合-40℃~+85℃的工作温度,可适应不同环境下的长期稳定运行。

四、典型应用场景

SMD2018P050TF的参数特性使其适用于以下场景:

  1. 消费电子:智能手机、平板、智能手表的电池保护电路(支路过流保护)、USB接口过流保护;
  2. 小型电源模块:5V/1A、12V/0.5A等低压电源的输出过流保护,防止负载短路损坏电源;
  3. 通讯设备:路由器、交换机的端口保护、物联网传感器模块的过流防护;
  4. 工业控制:小型PLC、传感器节点的过流保护,适应宽温工作环境;
  5. 智能家居:智能插座、智能灯光控制器的过流保护,避免过载引发安全隐患。

五、选型与使用注意事项

  1. 选型原则:
    • 保持电流(Ihold)需≥电路正常工作电流的最大值(考虑环境温度升高时Ihold会下降,需适当降额);
    • 跳闸电流(Itrip)需≤电路中其他保护器件(如熔断器)的动作电流,避免其他器件先损坏;
    • 耐压(Vmax)需≥电路工作电压的最大值。
  2. 使用注意:
    • 焊接时需控制温度与时间,避免高温损坏保险丝内部聚合物材料;
    • 安装位置尽量靠近被保护对象,减少线路压降对保护性能的影响;
    • 禁止并联使用(可能导致动作不一致),串联使用需评估总阻值与功率损耗。

六、产品优势总结

SMD2018P050TF自恢复保险丝凭借小型化封装、宽温适应性、低初始阻值、自恢复无需更换等核心优势,为电子设备提供可靠的过流保护方案,有效降低维护成本,提升设备稳定性,是消费电子、通讯、工业控制等领域的理想选择。

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