WMSIC Electronic Components

RUILON 20D561K

Model20D561K
PackageElectronic Component
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 20D561K
Type
RUILON
Minimum package
250

Technical parameters

Electronic Component
RUILON
Electronic Component
20D561K
Electronic Component
1
Package
Electronic Component
Electronic Component
Varistor Resistor
Electronic Component
475J
Electronic Component
5.484g
Electronic Component
1
Varistor Voltage
504V~616V
Electronic Component
BM0257675629
Voltage
925V
Static Power
1W
Static Capacitor
970pF@1kHz
Operating Voltage(AC)
350V
Operating Voltage(DC)
460V
Surge Current
6.5kA

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

20D561K 产品概述

一、产品简介

20D561K 是瑞隆源(RUILON)出品的一款高能量金属氧化物压敏电阻(MOV),属 20D 系列圆盘型径向引线封装。该器件经校验通过,专为中高压直流/交流系统及工业电源防雷、瞬态过压抑制设计,兼顾大浪涌能量吸收能力与较低的静态漏电特性,适合发电、逆变、变频与工业控制等场景。

二、主要电气参数

  • 压敏电压(V1mA):504V ~ 616V(典型标称值 561V)
  • 钳位电压(Ipp 峰值时):约 925V
  • 工作电压:DC 460V;AC 350V(持续运行极限)
  • 峰值浪涌电流(Imax):6.5kA(单次脉冲)
  • 能量吸收:475J(8/20µs 标准冲击条件)
  • 静态电容:970pF @ 1kHz
  • 额定静态功率耗散:1W
  • 封装形式:径向引线,圆盘型(20D 系列尺寸等级)

三、主要特性

  • 高浪涌吸收能力:6.5kA 峰值电流与 475J 能量,能有效吸收雷击与开关冲击产生的大能量瞬变。
  • 低泄漏与稳定电压特性:在额定工作电压下保持低泄漏,长期漂移小,适合直流母线与交流系统保护。
  • 中等电容值:约 970pF,在高频保护与信号完整性之间取得平衡,适用于电力电子并联保护但需注意对高速信号的影响。
  • 机械可靠:径向引线方便安装于印制板或穿孔安装,适配常规焊接与波峰/回流工艺(注意工艺温度限制)。

四、典型应用

  • 光伏逆变器、储能变流器的直流母线过压保护
  • 三相整流/逆变电源及变频器的输入端防雷与浪涌抑制
  • 工业电源、UPS、配电柜与电机驱动系统的瞬态过电压防护
  • 通信与控制柜中对电源瞬态的二级防护

五、选型与使用建议

  • 确认钳位电压与被保护设备耐压:925V 钳位需低于被保护元件的最大可承受电压。
  • 考虑实际浪涌波形与能量:若遇到重复高能脉冲,应选择更高能量级或并联/串联组合方案。
  • 注意静态功耗与散热:在持续偏置下(接近工作电压)应保证散热良好,避免超过 1W 额定耗散。
  • 电容影响:970pF 在某些高频或计时电路中可能影响性能,敏感电路需评估影响或采取隔离措施。
  • 安装建议:保持引线与周围元件间适当间距,避免受潮与机械应力,推荐配合熔断器或限流元件以提升整体可靠性。

六、质量与可靠性

产品经过出厂测试与校验,通过典型的浪涌、温度循环与长期稳态老化试验。推荐在设计过程中预留安全裕度并按应用场景定期检查替换周期,尤其在多次大浪涌事件后应评估器件状态。

七、封装与订购信息

品牌:RUILON(瑞隆源)
封装:径向引线,20D 系列圆盘型(请在订购时确认引线间距与直径规格)
型号:20D561K(校验通过)

如需进一步的典型 IV 曲线、8/20µs 浪涌测试曲线或封装尺寸图纸,我可协助提供或解读以便在具体设计中准确选型。

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