WMSIC Electronic Components

RUILON 07D471K

Model07D471K
PackageThrough-hole, P=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 07D471K
Type
RUILON
Minimum package
1000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RUILON
Electronic Component
07D471K
Electronic Component
1
Package
Through-hole, P=5mm
Electronic Component
Varistor Resistor
Electronic Component
19.7J
Electronic Component
0.712g
Electronic Component
1
Varistor Voltage
423V~517V
Electronic Component
BM0227117284
Voltage
775V
Static Power
250mW
Static Capacitor
90pF@1kHz
Operating Voltage(AC)
300V
Operating Voltage(DC)
385V

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

07D471K 产品概述

07D471K 是 RUILON(瑞隆源)推出的一款插件式金属氧化物压敏电阻(MOV),专为工业级浪涌保护设计。该器件在典型的工业供电和直流系统中,能够在瞬时大能量浪涌发生时提供可靠的钳位保护,保护下游元器件不被过压损坏。07D471K 在能量吸收、峰值冲击能力和低电容特性之间取得平衡,适合电源输入端、直流链路保护以及敏感电子设备的浪涌抑制。

一、主要特性

  • 钳位电压:775 V(典型值)
  • 能量吸收:19.7 J(8/20 μs 波形)
  • 峰值浪涌电流:1.2 kA(8/20 μs)
  • 压敏电压范围:423 V ~ 517 V(产品标称/测试区间)
  • 工作电压(DC):385 V
  • 工作电压(AC):300 V
  • 静态电容:90 pF @ 1 kHz(低电容,适合对信号完整性有要求的场合)
  • 静态功耗(漏电/耗散能力):250 mW
  • 封装形式:插件式,间距 P = 5 mm,便于手工和波峰焊装配

二、电气性能说明

07D471K 设计用于承受工业级脉冲能量,其 8/20 μs 能量吸收 19.7 J 和 1.2 kA 峰值浪涌电流,使其能够在典型雷击或开关瞬变事件中吸收大量能量并将电压限制在安全范围(钳位电压 775 V)以内。压敏电压范围(423–517 V)反映了器件在不同测试电流下的阈值分布,实际选型时应参考具体应用的触发电平和允许工作电压。较低的静态电容(90 pF)保证在高速信号或测控线路中对信号影响最小。

工作电压指标:DC 385 V 和 AC 300 V 表示器件在这些持续电压下可以长期工作而不发生失效,适用于 300 VAC 工业电源侧或 385 V 直流总线(例如部分电力电子、光伏或储能系统的直流侧)作为主要浪涌防护件。

三、典型应用场景

  • 工业配电系统输入端的浪涌保护(变频器、伺服驱动、PLC)
  • 直流母线保护(光伏逆变器、储能系统、充电桩)
  • 电源适配器与电源模块的入口保护
  • 工业通信设备和测控设备的电源防护(需要低电容场合)
  • 家用电器与商业设备的过电压防护

四、封装与机械信息

07D471K 为插件(Through-hole)封装,两个引脚间距为 5 mm,适合常规 PCB 布局与手工焊接或波峰焊加工。插件形式使其在维修和更换时便捷,适合需要现场更换保护件的应用场景。外形尺寸与引脚排列需参考厂方完整机械图纸以确保散热与保持距离符合电气安全要求。

五、使用与设计建议

  • 选择位置:优先放置于电源输入端或需要保护的回路靠近接地点一侧,尽量减小从浪涌源到 MOV 的引线长度以降低串联电感。
  • 配合器件:在需要多级防护的系统中,MOV 可与气体放电管(GDT)、瞬态抑制二极管(TVS)配合使用,实现更低钳位和更高冲击承受能力的组合保护。
  • 散热与功耗:长时间承受较高漏电或重复脉冲时需关注器件温升,确保通风和足够的 PCB 铜面以帮助散热。静态功耗 250 mW 表明在高工作电压下存在典型功耗,应在设计中考虑。
  • 考虑退化:MOV 随冲击次数和能量会逐步退化,应在保护回路中预留更换策略或并联冗余以提高可靠性。

六、可靠性与贮存

  • 避免在高湿、高温或腐蚀性气氛中长期存放,建议按供应商的存储条件保存(常温、干燥、避光)。
  • 安装前避免静电和机械冲击;焊接应在推荐温度曲线内操作以保护材料特性。
  • 对于关键设备或高频率冲击环境,建议定期检测或更换以维持保护性能。

七、订购信息与替代型号

品牌:RUILON(瑞隆源),型号:07D471K,封装:插件 P=5 mm。订购时请确认完整型号与批次,以确保压敏电压范围和能量等级满足系统要求。对于不同的电压或能量等级,可参考厂方其它系列或联系供应商获取更合适的替代型号和技术支持。

总结:07D471K 以其 775 V 钳位、19.7 J 能量吸收、1.2 kA 峰值浪涌电流和较低电容特性,为工业与直流系统提供了可靠的瞬态过压保护方案,尤其适合需要插件安装与现场维护的应用。

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