WMSIC Electronic Components

RUILON 14D681K

Model14D681K
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 14D681K
Type
RUILON
Minimum package
250

Technical parameters

Electronic Component
RUILON
Electronic Component
14D681K
Electronic Component
1
Package
Electronic Component
Electronic Component
Varistor Resistor
Electronic Component
84.6J
Electronic Component
0.712g
Electronic Component
1
Varistor Voltage
612V~748V
Electronic Component
BM0257687365
Voltage
1.12kV
Static Power
600mW
Static Capacitor
290pF@1kHz
Operating Voltage(AC)
420V
Operating Voltage(DC)
560V
Surge Current
4.5kA

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

14D681K 产品概述

一、产品简介

14D681K 是瑞隆源(RUILON)推出的一款径向引线金属氧化物压敏电阻(MOV),型号名称中“681”表明其标称压敏电压约为681V。该器件已通过出厂校验,设计用于中高压直流/交流系统的浪涌过压保护,兼顾较高的能量吸收能力与适度的静态电容特性,适合工业电源、逆变器、配电柜与照明类防护场景。

二、主要电气参数

  • 压敏电压(Varistor Voltage):612V ~ 748V(典型值约681V)
  • 钳位电压(Clamping Voltage):1.12kV(在额定浪涌条件下)
  • 工作电压(DC):560V
  • 工作电压(AC):420V
  • 峰值浪涌电流:4.5kA
  • 能量吸收:84.6J(厂家标准测试条件下)
  • 静态电容:290pF @ 1kHz
  • 静态功率:600mW
  • 封装:径向引线,便于穿孔安装与波峰/手工焊接

三、性能特点与优势

  • 高压适应:工作DC电压560V、AC电压420V,适合高压直流系统与工业交流网的瞬态防护。
  • 强劲的浪涌承受能力:峰值浪涌电流4.5kA,能量吸收84.6J,可应对大电流雷击或开关瞬态冲击。
  • 可控钳位:1.12kV 的钳位电压在保护器件与被保护设备之间提供有效的过压限制,兼顾保护与稳定性。
  • 适中电容:290pF 的静态电容在需兼顾信号完整性与抑制高频干扰的应用中表现平衡。
  • 经校验可靠:出厂校验通过,符合常规品质控制要求,便于工程应用与替换维护。

四、典型应用场景

  • 工业电源与配电系统的浪涌保护(配合熔断或热熔开关提升安全性)
  • 逆变器与直流母线防护(如光伏逆变器、储能系统DC侧)
  • 不间断电源(UPS)与电源模块的突发过电压吸收
  • 工业控制柜、变频器与伺服驱动器的输入端防雷抗浪涌
  • LED驱动、电源适配器等需要抑制瞬态脉冲的设备

五、使用建议与注意事项

  • 非连续工作:MOV用于吸收瞬态能量,不宜作为持续稳态电压箝位器件使用,应避免长期在钳位状态下工作。
  • 温度与寿命:高温和频繁的浪涌会降低寿命,建议按厂家热阻和环境温度要求做必要的散热与布局。
  • 并联/串联策略:如需提升能量吸收或电压等级,应在工程实践中遵循厂方建议进行并联或串联,注意匹配电气参数。
  • 保护配合:在关键系统中建议配合熔丝、热熔断器或监测电路实现故障隔离与更换提示。
  • 电容影响:对于对信号完整性敏感的电路,应评估290pF电容对高频信号的影响并视情况选择低容版本或改进布局。

六、总结

14D681K(RUILON)提供了针对中高压系统的稳健浪涌保护方案,兼具较高的能量吸收能力和适中的电容特性,适合各类工业电源与逆变器等需要抗雷击与抗开关瞬态的场合。出厂校验通过,径向引线封装利于装配与维护。选型时请综合工作电压、允许钳位电压及环境条件,必要时与厂方确认具体测试条件与寿命曲线。

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