WMSIC Electronic Components

DOWO 1.5KE180CA

Model1.5KE180CA
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 1.5KE180CA
Type
DOWO
Minimum package
1250 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
DOWO
Electronic Component
1.5KE180CA
Electronic Component
1
Package
DO-201AD
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.946g
Electronic Component
1
Electronic Component
BM0264866281
Voltage
246V
Current(Ir)
1uA
Voltage(VBR)
171V
Electronic Component
Electronic Component
Electronic Component
1250

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

1.5KE180CA瞬态抑制二极管(TVS)产品概述

一、产品基本属性与定位

1.5KE180CA是东沃(DOWO) 品牌推出的双向瞬态抑制二极管(TVS),采用DO-201AD轴向封装,属于低压系统瞬态过压防护的核心器件。其设计目标是快速响应电路中的浪涌脉冲(如雷击、开关瞬态、静电放电),将电压钳位在安全范围内,保护后级敏感电子元件(如MCU、传感器、通信芯片)免受损坏,广泛适配工业控制、通信接口、低压电源等场景。

二、核心电气参数深度解析

该器件的关键参数直接决定防护能力,具体解析如下:

  1. 反向截止电压(Vrwm):154V
    是器件正常工作时可承受的最大反向直流电压,若电路正常工作电压≤154V,器件处于截止状态,无明显电流导通,不影响电路效率。
  2. 击穿电压(Vbr):171V
    指器件开始导通的电压阈值,当电路电压超过此值时,TVS快速从截止态转为导通态,启动防护功能。
  3. 钳位电压(Vc):246V
    是浪涌脉冲作用下,TVS能将电压钳位到的最大值(对应峰值脉冲电流Ipp=6.1A时),此值越低,对后级元件的保护越可靠。
  4. 峰值脉冲电流(Ipp):6.1A
    器件可承受的最大脉冲电流峰值,结合1.5kW峰值功率,能应对多数低压系统的典型浪涌强度。
  5. 峰值脉冲功率(Ppp):1.5kW@10/1000μs
    采用行业标准10/1000μs浪涌波形(上升10μs、持续1000μs)测试的最大耐受功率,覆盖常见的雷击浪涌与开关浪涌场景。
  6. 反向漏电流(Ir):1μA
    正常工作状态下的反向漏电流极小,可忽略不计,避免器件自身功耗对电路的影响。

三、封装与物理特性

采用DO-201AD轴向封装,具备以下实用特点:

  • 安装便捷:轴向引线设计,适配常规通孔焊接工艺,无需特殊工装,兼容多数PCB布局;
  • 散热可靠:封装体积适中,可有效散发热量,避免脉冲作用下过热损坏;
  • 工业级可靠性:耐温范围宽(典型-55℃~+150℃),抗振动、抗冲击性能符合工业环境要求,适合 harsh 工况使用。

四、典型应用场景

  1. 低压直流电源防护:如120V直流电源系统、通信设备电源模块,防止雷击浪涌或负载开关瞬态过压;
  2. 通信接口防护:RS485、CAN总线、以太网接口等双向传输接口,利用双向TVS特性简化电路设计;
  3. 工业控制设备:PLC输入输出模块、传感器节点,保护敏感模拟/数字电路免受现场电磁干扰;
  4. 消费电子辅助防护:部分中高压消费电子(如专业音响、工业级显示器)的电源端防护。

五、性能优势与使用注意事项

性能优势

  • 双向防护无极性:无需区分正负极,安装时避免接反风险,简化PCB布局;
  • 快速响应:TVS响应时间达ns级,可瞬间钳位浪涌电压,保护速度远快于保险丝等被动元件;
  • 低功耗待机:1μA漏电流确保正常工作时无额外功耗,不影响电路效率;
  • 宽脉冲耐受:1.5kW峰值功率满足多数低压系统的浪涌防护需求,无需并联多个器件。

使用注意事项

  1. 电压匹配:确保电路正常工作电压≤Vrwm(154V),避免器件长期处于导通状态;
  2. 功率校验:根据电路最大浪涌功率选择器件,若浪涌功率超过1.5kW,需并联多个1.5KE180CA;
  3. 焊接规范:焊接温度不超过260℃(持续时间≤10s),避免损伤封装与内部芯片;
  4. 散热设计:若脉冲频繁(如每秒多次浪涌),需在PCB上预留散热铜箔,增强散热能力。

六、总结

1.5KE180CA作为东沃品牌的双向TVS器件,凭借高防护能力、低功耗、双向无极性 等特点,成为低压系统瞬态过压防护的高性价比选择。其DO-201AD封装适配工业与消费电子的多种场景,可有效降低浪涌对敏感元件的损坏风险,提升电路可靠性。

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