WMSIC Electronic Components

RUILON 10D431K

Model10D431K
PackageThrough-hole, P=7.5mm
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 10D431K
Type
RUILON
Minimum package
500 袋

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RUILON
Electronic Component
10D431K
Electronic Component
1
Package
Through-hole, P=7.5mm
Electronic Component
Varistor Resistor
Electronic Component
38.7J
Electronic Component
0.712g
Electronic Component
1
Varistor Voltage
387V~473V
Electronic Component
BM0246634348
Voltage
710V
Static Power
400mW
Static Capacitor
220pF@1kHz
Operating Voltage(AC)
275V
Operating Voltage(DC)
350V

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

10D431K 产品概述

10D431K 为 RUILON(瑞隆源)品牌的金属氧化物压敏电阻(MOV)插件型元件,适用于交流/直流电源及各种设备的过压浪涌保护。该器件在保证较高浪涌能量吸收能力的同时,采用通用插件封装(P = 7.5 mm),便于在标准印制板和功率板上安装与替换。下文对其主要参数、特性、典型应用及使用注意事项做出详尽说明,便于工程选型与设计落地。

一、基本参数

  • 品牌:RUILON(瑞隆源)
  • 型号:10D431K
  • 压敏电压(Varistor Voltage, V1mA):387 V ~ 473 V(典型值 431 V,K 表示 ±10% 公差)
  • 钳位电压(Clamping Voltage, Ipp=2.5kA):710 V
  • 工作电压(直流):350 V DC
  • 工作电压(交流):275 V AC
  • 峰值浪涌电流(Ipp):2.5 kA
  • 能量吸收能力(单次、基于标准冲击波能量衡量):38.7 J
  • 静态电容:220 pF @ 1 kHz
  • 静态功率(最大连续耗散功率):400 mW
  • 封装形式:插件型,脚距 P = 7.5 mm

二、主要特性与优势

  • 高浪涌承受能力:2.5 kA 峰值浪涌电流配合 38.7 J 的能量吸收能力,使该器件可应对常见的雷击感应与开关瞬态浪涌,适合配合保护电源输入端。
  • 稳定的钳位性能:在额定冲击电流下,压敏电阻能将瞬态过电压钳位在约 710 V 范围内,从而保护后级电路免受高电压冲击。
  • 适用于 275 VAC / 350 V DC 系统:可直接用于单相市电(275 VAC)以及若干直流母线(350 V DC)的过压防护场景。
  • 插件封装、易于更换:10 mm 盘型封装与 7.5 mm 脚距适应传统通孔工艺,便于现场维修更换及工程样机调试。
  • 适中电容:220 pF 的静态电容对低频电源侧影响有限,但在高速数据线或精密模拟电路上需评估其对信号完整性的影响。

三、典型应用场景

  • 家用电器与电源适配器的市电输入防护(L-N、L-PE 配置)
  • 工业设备、变频器与直流母线的过压与浪涌保护(适用于 350 V DC 级别)
  • 开关电源和电源管理模块的输入端防护元件
  • 电力通讯设备、控制柜以及配电箱中作为一级或二级浪涌抑制元件

四、选型与电路推荐

  • 交流电源保护:在单相 230 VAC 系统中常将 10D431K 并联接入 L-N 或 L-PE,用于吸收瞬态过压。对于更严苛的雷电脉冲,可在前端增加熔断器或气体放电管以实现多级保护。
  • 直流电源保护:在 350 V DC 母线上并联安装,用以限制瞬态电压。注意直流下 MOV 的持续功耗和温升管理。
  • 与其他元件配合:建议配合快速熔断器、热敏电阻或串联限流元件对重复浪涌与持续过压情形进行保护,延长 MOV 使用寿命。

五、使用与可靠性注意事项

  • 连续功率限制:静态功率 400 mW 为最大连续耗散能力参考值,长期在高压下工作会导致自身温升并影响寿命,应保证良好散热与适当留余量。
  • 热稳定性与老化:频繁发生高能浪涌会逐步降低压敏电阻的压敏电压并增加漏流,建议在设计中预留更换维护周期或采用二级保护策略。
  • 电容影响:220 pF 电容在高频或高速数字信号线上可能产生耦合或带宽限制,不宜直接用于敏感的数据链路保护。
  • 焊接与机械应力:插件式封装允许手工或波峰焊安装,但应注意热循环和弯脚力度,避免造成陶瓷体裂纹。
  • 环境与储存:避免长期潮湿或高温环境存放,运输和安装过程中防止机械冲击。

六、采购与验证建议

  • 在量产前,获取完整的厂方数据手册,包括 V-I 曲线、漏电流、温升试验及包装信息,确认所购批次符合规格。
  • 建议做实际系统级的浪涌测试(如 IEC/EN 标准波形或自定义冲击),验证钳位电压、能量吸收以及对后级电路的保护效果。
  • 关键应用可与供应商确认产品的寿命曲线和替换策略,必要时选用更高等级或冗余保护设计。

总结:10D431K 是一款面向 275 VAC / 350 V DC 电源保护的中高能量插件 MOV,具备 2.5 kA 浪涌承受能力和 710 V 钳位电压,适用于电源输入及电力设备的瞬态抑制。合理的热管理、分级保护与按厂方规范使用能显著提升系统可靠性与元件寿命。若需获取数据手册或进一步电参数曲线,请联系供应商索取详细资料。

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