WMSIC Electronic Components

RUILON 10D390K

Model10D390K
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 10D390K
Type
RUILON
Minimum package
500

Technical parameters

Electronic Component
RUILON
Electronic Component
10D390K
Electronic Component
1
Package
Through-hole, P=7.5mm
Electronic Component
Varistor Resistor
Electronic Component
3.5J
Electronic Component
1.052g
Electronic Component
1
Varistor Voltage
35V~43V
Electronic Component
BM0227699982
Voltage
77V
Static Power
50mW
Static Capacitor
3.7nF@1kHz
Operating Voltage(AC)
25V
Operating Voltage(DC)
31V
Surge Current
500A

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

10D390K 产品概述

一、产品简介

10D390K 是 RUILON(瑞隆源)系列的一款插件型压敏电阻,用于抑制瞬态过电压和浪涌冲击,保护电源模块、开关电源、工业控制及家电等设备的关键元件。该器件响应速度快、能量吸收能力适中,适合在中低能量脉冲防护场合作为浪涌吸收元件使用。封装为插件型,针距 P=7.5mm,便于维修更换与手工插装。

二、主要技术参数

  • 压敏电压(Varistor Voltage / V1mA):35V ~ 43V
  • 钳位电压(Clamping Voltage):77V(在额定峰值浪涌电流条件下)
  • 工作电压(DC):31V
  • 工作电压(AC):25V
  • 峰值浪涌电流(Ipeak):500A
  • 能量吸收能力(单次):3.5J
  • 静态电容:3.7nF @ 1kHz(注意:对高频信号有影响)
  • 静态功率/漏电功耗:50mW
  • 封装形式:插件,P=7.5mm
  • 品牌:RUILON(瑞隆源)

三、性能特点

  • 瞬态抑制有效:在500A峰值冲击下钳位电压约77V,可有效限制突发过电压对电路的损害。
  • 能量吸收适中:单次吸能3.5J,适用于常见雷击和开关浪涌情况下对供电轨的保护。
  • 响应迅速:压敏电阻响应时间极短,能在临时过电压出现瞬间导通泄放能量。
  • 易于安装维护:插件封装便于焊接与更换,适用于维修密集或样机验证场合。
  • 电容值需考虑:3.7nF 的静态电容在高频或高速信号线附近可能引入耦合或失真,设计时需权衡放置位置。

四、典型应用场景

  • 开关电源(SMPS)输入端的浪涌保护与抑制。
  • 家用电器、电源适配器的电压瞬变保护。
  • 工业控制设备、继电器驱动电路的过压保护。
  • 电池管理、UPS 系统中中低电压轨保护(注意配合电路工作电压选择)。

五、安装与使用注意事项

  • 工作电压选型:工作电压(DC 31V / AC 25V)应低于压敏电压范围,且保证在正常工况下压敏电阻不导通以避免持续发热。
  • 钳位匹配:确保钳位电压在被保护设备可承受范围内,必要时与其他保护器件(如 TVS 二极管、熔断器)配合使用。
  • 热管理:长时间承受高能量或重复脉冲会导致升温或老化,应考虑留有散热空间并避免靠近热源。
  • 电容影响:当用于信号线或高频电路附近,需评估3.7nF 电容对信号完整性的影响,必要时选择低电容防护器件或远离敏感节点。
  • 安装方式:插件封装适合手工装配,但避免弯折引脚造成机械应力,焊接时注意热冲击以免影响性能。

六、选型与测试建议

  • 浪涌环境评估:根据实际浪涌幅度、次数和能量选择合适的浪涌电流及能量余量,单次能量3.5J适合中等能量场合。
  • 余量策略:建议在压敏电压与工作电压之间保持足够裕量,避免在正常工作时处于或接近导通区。
  • 测试方法:压敏电压通常在1mA电流条件下测量;钳位电压应在指定峰值浪涌电流(如500A)下测定;同时测量泄漏电流与功耗以评估静态性能。
  • 老化与可靠性:对重要应用做温升、重复冲击和长期老化测试,以确认在目标工况下的稳定性。

七、包装、储存与可靠性

  • 包装通常为托盘或卷带装(插件常用托盘),运输和储存应避免潮湿、高温和强震动。
  • 储存环境推荐避光、常温、干燥,长时间贮存前进行性能抽检以确认参数稳定。
  • 对关键应用建议与供应商沟通批次一致性、放电测试与认证信息,以保证可靠性和长期稳定运行。

如需器件数据手册、详细曲线(V-I 特性、能量吸收曲线、温度系数)或样品评估建议,我可以继续提供相应资料与设计支持。

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