WMSIC Electronic Components

RUILON 14D751K

Model14D751K
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
RUILON 14D751K
Type
RUILON
Minimum package
250 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RUILON
Electronic Component
14D751K
Electronic Component
1
Package
Electronic Component
Electronic Component
Varistor Resistor
Electronic Component
90J
Electronic Component
3.464g
Electronic Component
1
Varistor Voltage
675V~825V
Electronic Component
BM0257712395
Voltage
1.24kV
Static Power
600mW
Static Capacitor
260pF@1kHz
Operating Voltage(AC)
460V
Operating Voltage(DC)
615V

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

14D751K 产品概述

一、产品简介

14D751K 是 RUILON(瑞隆源) 出品的一款径向引线型压敏电阻(MOV),专为高压直流与交流电路的过电压保护而设计。校验通过!该器件在高能量冲击下具备可靠的浪涌吸收能力,适用于电源端、逆变器及工业配电等场合。

二、关键电气参数

  • 压敏电压(Varistor Voltage):675V ~ 825V
  • 钳位电压(Clamping Voltage):1.24kV
  • 额定工作电压 DC:615V
  • 额定工作电压 AC:460V
  • 峰值浪涌电流(Ipk):4.5kA
  • 能量吸收能力:90J
  • 静态电容:260pF @ 1kHz
  • 静态功率耗散:600mW

三、主要特性与优势

  • 高压等级:适用于高电压直流总线与高电压交流系统,工作电压与钳位性能匹配工业级保护需求。
  • 大浪涌能力:4.5kA 峰值浪涌电流与 90J 吸能能力,能有效抑制短时电涌,保护下游元件。
  • 低电容:260pF 的静态电容在高频敏感电路中影响较小,适合电源侧及部分控制回路。
  • 稳定可靠:额定静态功率 600mW,长期稳态工作性能良好,封装为径向引线便于通用电路板安装和更换。

四、典型应用场景

  • 工业三相电源和变频器的输入侧过压保护。
  • 光伏逆变器、高压直流系统的电压突变防护。
  • UPS、开关电源和电机驱动器的浪涌缓冲元件。
  • 配电柜、供电模块以及需要高能量吸收能力的防护电路。

五、使用与选型建议

  • 工作电压选择:长期工作电压应不超过标称 DC 615V / AC 460V,留有裕量可延长寿命。
  • 热管理:在高频繁冲击或高环境温度下,建议配合热熔断器或堆叠散热措施,避免因过热导致寿命下降。
  • 并联/串联注意:并联使用可提升吸能能力,串联时需关注压敏电压分配不均的问题,必要时加阻尼或匹配元件。
  • 对于对信号完整性敏感的场合,应评估 260pF 电容对带宽的影响,或在保护器件前后加入隔离/滤波设计。

六、封装与采购提示

  • 封装形式:径向引线,便于波峰焊或手工焊接与更换。
  • 品牌:RUILON(瑞隆源),提供工业级质量与批量一致性。
  • 选型时请核对应用电压等级、浪涌能量需求与尺寸限制,必要时联系供应商确认样片与加速老化测试数据。

如需更详细的温度特性曲线、8/20μs 能量试验波形或机械尺寸图,我可继续提供或协助联系厂商获取原始数据。

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