WMSIC Electronic Components

DOWO P6KE39A

ModelP6KE39A
PackageDO-15
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 P6KE39A
Type
DOWO
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
DOWO
Electronic Component
P6KE39A
Electronic Component
1
Package
DO-15
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.39g
Electronic Component
1
Electronic Component
BM0264254682
Voltage
53.9V
Current(Ir)
1uA
Voltage(VBR)
37.05V
Electronic Component
Electronic Component
Electronic Component
2000

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

P6KE39A瞬态抑制二极管(TVS)产品概述

一、产品定位与核心类别

P6KE39A是东沃(DOWO)品牌推出的单向瞬态抑制二极管(TVS),属于中低压电路过压保护的核心器件。其核心作用是在电路遭遇瞬态浪涌(如雷击感应、开关切换浪涌、静电放电ESD)时,快速从高阻态转为低阻态,将被保护端电压钳位在安全范围内,避免后端敏感电子元件(如单片机、传感器、通信接口芯片)因过压损坏。

二、关键电气参数详解

该型号的核心参数直接决定保护能力,具体如下:

  1. 反向截止电压(Vrwm):33.3V
    器件正常工作时反向可长期承受的最大直流电压,无击穿风险,明确适配低于33.3V的直流/交流电路。
  2. 击穿电压(Vbr):37.05V
    反向电压超过该值时进入雪崩击穿,是TVS启动保护的阈值(典型值,需注意容差范围)。
  3. 钳位电压(Vc):53.9V
    10/1000μs波形峰值脉冲下的最高电压,是保护后端元件的关键——需确保后端元件耐压高于该值。
  4. 峰值脉冲电流(Ipp):11.13A
    对应10/1000μs波形的最大耐受电流,反映抗大电流浪涌能力。
  5. 峰值脉冲功率(Ppp):600W
    10/1000μs波形下的最大脉冲功率,换算浪涌能量约为0.6J(功率×时间),满足多数中低压场景需求。
  6. 反向漏电流(Ir):1μA
    反向截止时的漏电流极小,不影响正常电路功耗,反向截止性能优异。

三、封装与物理特性

P6KE39A采用DO-15轴向引线封装,特点如下:

  • 尺寸紧凑:直径约2.5mm,长度约10mm,适配PCB板紧凑布局;
  • 安装便捷:轴向引脚可直接焊接,无需特殊工装;
  • 极性明确:印字端为阴极,需反向接浪涌输入侧(单向TVS极性不可反接)。

四、典型应用场景

该型号适配中低压电路过压保护,常见场景包括:

  1. 工业控制:PLC输入输出接口、传感器信号端、低压电源模块;
  2. 通信接口:RS485/CAN总线、以太网接口、串口通信电路;
  3. 消费电子:电源适配器、小型家电控制板、智能穿戴充电端;
  4. 汽车电子:12V车载音响、传感器供电、车载通信总线。

五、性能优势与设计注意事项

5.1 核心优势

  • 快速响应:ns级响应时间,瞬间抑制瞬态浪涌;
  • 高脉冲耐受:600W峰值功率+11.13A峰值电流,覆盖多数浪涌场景;
  • 低功耗:1μA漏电流对正常电路无额外负担;
  • 稳定钳位:钳位电压一致性好,保护可靠性高。

5.2 设计要点

  • 极性正确:单向TVS必须反向并联在被保护端(浪涌输入接阳极,地接阴极),反接会直接击穿失效;
  • 浪涌匹配:实际浪涌能量需≤0.6J(10/1000μs),否则需并联多个或选更高功率型号;
  • 辅助保护:建议串联保险丝/PPTC,防止持续过压损坏TVS;
  • 散热考虑:DO-15封装散热有限,避免长时间高频脉冲导致过热。

六、选型匹配参考

P6KE39A击穿电压处于36V~43V区间(同系列P6KE36A、P6KE43A),选型需注意:

  • 电路工作电压≤24V时,Vrwm33.3V余量充足;
  • 后端元件耐压≥60V时,53.9V钳位电压可有效保护;
  • 浪涌能量超0.6J时,需并联器件或升级为1.5KE39A。

总结:P6KE39A是一款性价比高的中低压单向TVS管,凭借稳定钳位、高脉冲耐受和紧凑封装,广泛适用于工业、通信、消费电子等领域的过压保护场景。

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