WMSIC Electronic Components

RUILON RL30-135 RL30

ModelRL30-135
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 RL30-135
Type
RUILON
Minimum package
500 袋

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RUILON
Electronic Component
RL30-135
Electronic Component
1
Package
Through-hole, P=5.1mm
Electronic Component
Resettable Fuse
Electronic Component
0.234g
Electronic Component
9.2mm
Electronic Component
1
Electronic Component
7.3s
Electronic Component
BM0265601159
Operating Temperature
40℃~+85℃
Voltage Rating(Vmax)
30V
Power(Pd)
800mW
Current(Imax)
40A
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.

RUILON瑞隆源RL30-135自恢复保险丝产品概述

RL30-135是RUILON(瑞隆源)推出的一款聚合物正温度系数(PTC)自恢复保险丝,属于过流保护器件范畴,无需手动重置即可多次复用,核心适配中低压、中电流场景的过流防护需求。以下从多维度解析其核心特性与应用价值。

一、产品基本信息与型号解读

RL30-135的型号与标识清晰对应其核心属性:

  • 品牌:RUILON(瑞隆源),国内专注过流保护器件的专业厂商;
  • 型号含义:
    • RL:瑞隆源PTC系列标识;
    • 30:最大耐压(Vmax)为30V(直流环境下);
    • 135:保持电流(Ihold)简化标注,实际为1.35A;
  • 后缀说明:PTC_9.2X3MM_TM明确其聚合物PTC材质,以及核心尺寸(长度9.2mm,宽/厚3mm),适配紧凑电路布局。

二、关键电性能参数深度解析

RL30-135的参数设计精准匹配中低功率场景的过流防护需求,核心参数及实际意义如下:

1. 电流与耐压范围

  • 耐压(Vmax=30V):直流环境下可承受的最大电压,适配12V/24V低压系统(如小型家电、汽车12V域);
  • 保持电流(Ihold=1.35A):常温(25℃)下持续导通不动作的最大电流——电路正常工作电流需≤1.35A,避免误触发;
  • 跳闸电流(Itrip=2.7A):常温下触发保护动作的最小电流(约为Ihold的2倍,符合PTC器件常规特性);
  • 最大电流(Imax=40A):短时间(ms级)可耐受的峰值电流,避免瞬时浪涌(如电容充电)损坏器件。

2. 阻值与功耗特性

  • 初始阻值(Rmin=40mΩ):常温下导通状态的最低阻值,导通损耗极低(如1A电流下仅产生40mW功耗),不影响电路效率;
  • 跳断后阻值(R1max=220mΩ):故障触发后阻值剧增,有效限制故障电流(如30V下故障电流≤136mA),保护后端器件;
  • 最大功耗(Pd=800mW):持续工作允许的最大功耗,需结合电路电流/电压降验证,避免温度累积。

3. 动作时间与温度范围

  • 动作时间(7.3s):在Itrip=2.7A条件下的典型动作时间,属于慢断型PTC——可过滤电机启动、电容充电等瞬时过流(3-5倍额定电流),避免误动作;
  • 工作温度(-40℃~+85℃):宽温范围适配户外、工业等极端环境(如低温户外设备、高温车间控制器)。

三、结构与材料特性

RL30-135采用聚合物PTC复合材质(高分子树脂+导电填料),其保护机制基于温度变化:

  • 正常工作时:导电填料形成连续通路,阻值低(40mΩ);
  • 过流触发时:电流发热使高分子材料膨胀,导电通路断开,阻值剧增至220mΩ以上,限制故障电流;
  • 故障排除后:温度下降,高分子材料收缩,导电通路恢复,阻值回落至初始状态,无需手动更换。

四、典型应用场景

结合参数特性,RL30-135适配以下场景:

1. 消费电子领域

  • 小型家电:加湿器、台灯、桌面风扇的过流保护(额定电流≤1A);
  • 移动电源:输出端过流防护(避免负载短路损坏电芯);
  • 音频设备:功放输出端保护(防止扬声器短路烧功放)。

2. 工业控制领域

  • 小型电机驱动:12V/24V直流电机(额定电流1A左右)的堵转保护;
  • 传感器模块:工业传感器(如温度、压力传感器)的供电过流防护;
  • 小型控制器:PLC扩展模块、继电器驱动电路的过流保护。

3. 汽车电子(低电压域)

  • 12V车载小负载:车内LED阅读灯、USB充电口、小型传感器(如胎压传感器)的过流防护(需确认工作电压≤30V)。

五、核心优势

  1. 多次复用,降低维护成本:故障排除后自动恢复,无需更换保险丝,减少物料损耗与人工维护;
  2. 低损耗,适配高效电路:初始阻值仅40mΩ,导通发热极小,不影响电路正常效率;
  3. 慢断特性,避免误动作:7.3s动作时间适配瞬时浪涌场景,提升系统运行连续性;
  4. 宽温适配,环境兼容性强:-40℃~+85℃满足极端环境需求;
  5. 小巧尺寸,便于布局:9.2mm长度+3mm宽/厚,适配高密度电路设计(如小型PCB板)。

六、应用注意事项

  1. 电流匹配:电路正常工作电流需≤1.35A,故障电流需≥2.7A,避免误动或不动作;
  2. 电压匹配:电路工作电压≤30V,超出可能损坏器件;
  3. 散热考虑:密集布局时需预留散热空间,避免温度累积导致误触发;
  4. 高温降额:环境温度>25℃时,Ihold需按厂家降额曲线调整(如85℃时Ihold约为0.7A);
  5. 安装规范:需确认封装类型(后缀TM通常为片式封装),焊接时符合厂家温度/时间要求。

总结

RL30-135作为一款中低电压、中电流的聚合物自恢复保险丝,凭借多次复用、低损耗、慢断适配、宽温兼容等优势,成为消费电子、工业控制、汽车低电压域等场景的实用过流保护选择,尤其适合需要避免瞬时浪涌误动作的电路设计,是紧凑系统的可靠防护器件。

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