WMSIC Electronic Components

DOWO 5KP440CA

Model5KP440CA
PackageR-6(P600)
BrandDOWO
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
DOWO 5KP440CA
Type
DOWO
Minimum package
250 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
DOWO
Electronic Component
5KP440CA
Electronic Component
1
Package
R-6(P600)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
2.696g
Electronic Component
1
Electronic Component
BM0231096209
Operating Temperature
55℃~+150℃
Voltage
713V
Current(Ir)
2uA
Voltage(VBR)
492V
Electronic Component
Electronic Component

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

5KP440CA 产品概述

5KP440CA 是 DOWO(东沃)出品的一款双向瞬态电压抑制二极管(TVS),专为高压直流/交流电源总线和工业级脉冲浪涌保护设计。器件在短时间脉冲能量吸收能力强、工作温度范围宽、静态漏电流小,适用于需要高能量吸收且钳位电压受控的场合。

一、主要特性

  • 极性:双向(Bi-directional),适合交流和双向脉冲抑制场合。
  • 反向截止电压 Vrwm:440 V(额定工作电压);用于标称工作电压下的稳态承受。
  • 击穿电压 VBR(Min):492 V(最小),保证在超过 Vrwm 后迅速进入雪崩区进行钳位。
  • 钳位电压 VC:713 V(对应标准试验脉冲条件下),在冲击发生时对系统电压进行有效限制。
  • 峰值脉冲电流 Ipp:7.01 A(10/1000 µs 波形下,与 Ppp、Vc 对应关系明确)。
  • 峰值脉冲功率 Ppp:5 kW(10/1000 µs),能够承受高能量短时浪涌而不损坏。
  • 反向电流 Ir:2 µA(典型/最大值,常温、Vrwm 条件下),保持系统待机功耗较低。
  • 工作温度范围:-55 ℃ 至 +150 ℃,满足严苛工业环境要求。
  • 封装:R-6 (P600),结构适配高能量吸收及良好热散设计。
  • 类型:瞬态抑制二极管(TVS),品牌:DOWO(东沃)。

二、典型电气参数说明

  • Vrwm(工作电压)为 440 V,表示在正常运行时器件不会进入击穿;选择时应保证系统稳态电压低于此值并留有裕量。
  • VBR(击穿电压)≥ 492 V,超过该电压时器件进入雪崩导通,迅速吸收能量以保护后端电路。
  • VC(钳位电压)为 713 V,此值表征在峰值冲击下对被保护节点的最高限制电压;下游元件需能承受该峰值或配合二次保护。
  • Ppp=5 kW 对应 10/1000 µs 波形;这是行业常用的能量规范,表示器件在该波形下的最大瞬态吸收能力。Ipp 与 Ppp、Vc 成比例关系(Ipp ≈ Ppp / Vc),本器件对应 Ipp ≈ 7.01 A。
  • 低漏电流(2 µA)适合对静态损耗敏感的电源系统及需长期待机的设备。

三、结构与热性能

5KP440CA 采用 R-6 (P600) 封装设计,便于在布局中实现良好热路径和机械固定。封装适配高能量脉冲吸收时的热冲击和机械应力,配合合适的散热装置(散热片、金属底座或热导垫)可以提高重复浪涌能力及寿命。器件的工作温度范围宽,适用-55 ℃到 +150 ℃ 的工业和户外场景,但在高温下应考虑功率和能量的热降额。

四、典型应用场景

  • 工业电源总线防护(如变频器、伺服驱动器的直流母线防护)。
  • 三相/高压电网侧的浪涌保护与瞬态抑制。
  • 逆变器、太阳能直流侧和储能系统中的高压浪涌防护。
  • UPS、电源模块及开关电源的输入侧浪涌钳位。
  • 需要双向保护的交流接口或双向脉冲抑制电路。

五、选型与安装建议

  • 选型时确保 Vrwm 高于系统最大稳态电压并留有安全裕量,避免器件频繁进入雪崩区造成发热和疲劳。
  • 核对下游器件能否承受 VC(约 713 V)或在系统中增加电压分级保护(如熔断器、气体放电管或更低钳位的 TVS)以保护敏感器件。
  • 对于频繁或大能量浪涌场合,建议配合良好散热与机械固定,必要时采用外部散热片或导热垫。
  • 封装并联提升能量处理能力需谨慎,注意电流分配不均问题;若需更高能量处理,应考虑额定更高的单体或专业浪涌吸收模块。
  • 安装时注意保持足够的爬电距离和间隙,以符合高压安全规范。

六、注意事项与可靠性

  • 该器件的能量指标基于 10/1000 µs 标准波形,其他波形下性能会不同,请根据实际浪涌源特性评估。
  • 长期处于接近 Vrwm 或频繁承受大能量脉冲会加速器件老化,应结合系统使用频率和浪涌统计进行可靠性设计。
  • 在选用与布局过程中,遵守制造商进一步的焊接、热循环及机械应力限制可延长使用寿命。

总结:5KP440CA 以其 440 V 的工作电压、5 kW 的瞬态吸收能力与 713 V 的钳位电压,为高压电源系统和工业级浪涌防护提供了可靠的双向过压保护方案。结合合理的热管理与系统匹配,可以在多种工业与电力电子场景中发挥稳健的保护作用。

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