WMSIC Electronic Components

RUILON RL4032A471K

ModelRL4032A471K
Package4032
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+

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Technical data

Product details

19 specifications

Core information

Product name
RUILON RL4032A471K
Type
RUILON
Minimum package
1000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RUILON
Electronic Component
RL4032A471K
Electronic Component
1
Package
4032
Electronic Component
Varistor Resistor
Electronic Component
52.9J
Electronic Component
1.59g
Electronic Component
1
Varistor Voltage
423V~517V
Electronic Component
BM0264391796
Voltage
775V
Static Capacitor
190pF@1kHz
Operating Voltage(AC)
300V
Operating Voltage(DC)
385V
Surge Current
2.5kA

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

RL4032A471K 压敏电阻产品概述

RL4032A471K是瑞隆源(RUILON)推出的一款贴片式氧化锌压敏电阻(MOV),采用4032小型化封装,针对中高压电路的浪涌过压保护需求设计,兼具中等浪涌吸收能力与紧凑尺寸,适用于多种工业及消费电子场景。

一、产品核心身份与定位

作为浪涌保护器件,RL4032A471K的核心功能是抑制瞬态过压冲击,保护后端敏感电路(如电源模块、控制芯片)免受雷击、开关浪涌等干扰。其参数偏向中高压通用场景:标称压敏电压470V(后缀“471K”表示47×10¹V,公差±10%),可覆盖220V交流市电(峰值约311V)及380V直流系统的防护需求,属于性能均衡的经济型浪涌保护器件。

二、关键电气参数详解

该产品的电气参数直接决定保护能力,核心参数及实际意义如下:

  1. 压敏电压范围:423V~517V
    压敏电压是压敏电阻在1mA测试电流下的电压值,±10%公差确保批量一致性。标称470V既避免正常工作电压下误触发,又能在浪涌时快速响应(电压超过压敏电压后电阻急剧下降,导通泄放浪涌电流)。
  2. 持续工作电压:DC 385V / AC 300V
    这是长期允许施加的电压(不可超过),AC 300V适配220V市电(有效值),DC 385V适配380V直流系统,满足工业及高压家电的电源环境需求。
  3. 钳位电压:775V(典型值)
    钳位电压是浪涌电流达额定值时的电压限制,直接反映保护效果。775V可将浪涌电压控制在后端电路可承受范围(如多数电源芯片耐压≤1kV)。
  4. 浪涌吸收能力:峰值电流2.5kA、能量52.9J
    峰值电流2.5kA(对应8/20μs标准浪涌波形),能量52.9J可有效吸收单次雷击或大功率开关的浪涌能量,多次浪涌后性能衰减符合行业标准。
  5. 静态电容:190pF@1kHz
    静态电容影响高频信号传输,190pF适合低频电源电路(如市电电源、工业控制电源),若用于射频电路需搭配低电容器件,但可满足绝大多数通用场景。

三、封装与物理特性

RL4032A471K采用4032贴片封装(尺寸约4.0mm×3.2mm×1.5mm),符合SMT自动化生产要求,适配小型化产品设计(如电源适配器、智能控制器)。封装采用阻燃环氧树脂,具备-40℃~+85℃的宽温范围与良好机械强度,可适应复杂工况(如户外LED电源、工业控制柜)。

四、典型应用场景

结合参数特点,该产品主要应用于:

  1. 家电电源保护:空调、洗衣机、冰箱的市电输入电路,抑制雷击及开关浪涌;
  2. 工业控制电路:PLC、变频器、伺服驱动器的电源模块,应对工业环境浪涌干扰;
  3. LED驱动电源:高压LED路灯、工矿灯的驱动电路,保护LED模组稳定工作;
  4. 直流电源系统:380V直流充电桩、储能系统的输入输出端,提升系统可靠性。

五、选型与使用注意事项

  1. 电压匹配:电路正常工作电压需≤持续工作电压(AC≤300V,DC≤385V);
  2. 并联安装:需并联在被保护电路两端(无极性),靠近电源输入端口以减少引线电感;
  3. 浪涌次数限制:多次浪涌会加速老化,若浪涌超过额定值或次数过多,需定期检测更换;
  4. 高频场景适配:190pF电容不适合高频通信电路,可搭配陶瓷电容等低电容器件使用。

综上,RL4032A471K以紧凑封装、中高压适配、中等浪涌能力为核心优势,是工业及消费电子领域浪涌保护的高性价比选择,可有效提升电路抗干扰能力与可靠性。

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