WMSIC Electronic Components

DOWO 1.5KE43CA

Model1.5KE43CA
PackageDO-201AD
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 1.5KE43CA
Type
DOWO
Minimum package
1250 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
DOWO
Electronic Component
1.5KE43CA
Electronic Component
1
Package
DO-201AD
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.914g
Electronic Component
1
Electronic Component
BM0264356071
Operating Temperature
55℃~+150℃
Voltage
59.3V
Current(Ir)
1uA
Voltage(VBR)
40.85V
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.

1.5KE43CA 产品概述

一、主要参数与型号概述

1.5KE43CA 为 DOWO(东沃)出品的双向瞬态抑制二极管(TVS),采用玻璃钝化芯片,封装为 DO-201AD。器件面向高能量瞬态浪涌保护,峰值脉冲功率能力 1500W(波形 10/1000μs,重复率/占空比 0.01%),适用于对电源线或信号线的强烈脉冲干扰防护。

二、性能特点

  • 极性:双向(可对正负脉冲对称钳位)。
  • 反向截止电压 Vrwm(典型):36.8 V。
  • 击穿电压 VBR(典型):40.85 V。
  • 钳位电压 Vc(典型,Ipp 条件下):59.3 V。
  • 峰值脉冲电流 Ipp:25.3 A(10/1000μs)。
  • 峰值脉冲功率 Ppp:1.5 kW(10/1000μs,0.01% 占空比)。
  • 反向漏电流 Ir:1 μA(典型)。
  • 工作温度范围:-55°C 至 +150°C。
  • 结构与工艺:玻璃钝化芯片,响应速度极快,低泄漏电流,良好钳位能力,符合 RoHS。

三、典型应用场景

适用于工业电源、通信线路、车载电子(非直接替代高压车规器件需核查)、逆变器控制回路、变频器输入/控制端、测试设备、接口保护(如串口、I/O 口)等需要承受高能量瞬态脉冲的场合。

四、主要电气参数解析与使用建议

  • 选型时应以 Vrwm(36.8V)作为持续工作电压上限,确保被保护线路工作电压低于该值,留出必要裕量以避免频繁进入击穿区。
  • 钳位电压 59.3V 表示在遭受 Ipp(25.3A)脉冲时的典型电压,实际系统中仍需评估该电压对后级器件的容忍性。
  • 峰值能量能力基于 10/1000μs 波形与 0.01% 占空比,切勿在更高占空比或重复冲击频率下长期超载。
  • 漏电流 1μA 适合低泄漏要求场合,但在高温下会升高,应按最高工作温度评估系统总体漏电。

五、封装与安装要点

DO-201AD 为轴向/大体积封装,便于通过孔安装,具有较好散热路径。推荐布板和安装注意:

  • 尽量缩短从被保护节点到 TVS 的连接长度,降低寄生电感以提高瞬态抑制效果。
  • 对于较大能量吸收场合,考虑在铜箔增加散热面或使用热过孔辅助散热。
  • 焊接工艺需控制温度与时长,避免对玻璃钝化芯片造成热冲击。

六、可靠性与合规性

玻璃钝化工艺提高了器件的长期稳定性与抗环境能力,工作温度范围宽(-55°C~+150°C),适合工业级应用。产品符合 RoHS 要求,实际应用中仍建议进行抗冲击/振动和温度循环测试以验证系统可靠性。

七、选型提示与替代考虑

在选用 1.5KE43CA 时,确认系统允许的最大钳位电压与 Vrwm 匹配;若线路电压较低,可考虑 Vrwm 更小型号以获得更低钳位电压;若需更高脉冲能量或更低钳位电压,可并联/级联或选择更高功率等级的 TVS,同时注意并联时电流分配与热管理。若需单向保护,可选择对应的 1.5KE43CA 单向版本。

如需器件封装图、详细电气表格或样片信息,可提供进一步资料以便精准选型与布局建议。

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