WMSIC Electronic Components

DOWO P6KE51A

ModelP6KE51A
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 P6KE51A
Type
DOWO
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
DOWO
Electronic Component
P6KE51A
Electronic Component
1
Package
DO-15
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.41g
Electronic Component
1
Electronic Component
BM0264866265
Operating Temperature
55℃~+150℃
Voltage
70.1V
Current(Ir)
1uA
Voltage(VBR)
48.45V
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.

P6KE51A(DOWO东沃)瞬态抑制二极管产品概述

P6KE51A是DOWO(东沃)品牌推出的一款单向瞬态抑制二极管(TVS),采用经典DO-15轴向封装,专为电子电路中的瞬态浪涌防护设计,具备宽温适应性、高脉冲功率承受能力及低静态功耗等特点,可广泛应用于工业控制、通信、汽车电子等领域。

一、产品基本定位与核心类别

P6KE51A属于P6KE系列通用型TVS,核心功能是当电路遭遇瞬态过压(如雷击、静电放电、开关浪涌等)时,快速导通并将电压钳位至安全范围,保护后端敏感元器件(如IC、传感器、电容等)免受损坏。其单向极性设计,适用于仅需防护单一方向浪涌的电路场景,成本与性能平衡度高,是中低端防护需求的优选器件之一。

二、核心电气参数深度解析

P6KE51A的关键参数直接决定了其防护能力,具体解析如下:

  1. 反向截止电压(Vrwm):43.6V
    指器件在反向工作状态下允许的最大连续电压,电路正常工作时,该电压需低于Vrwm以避免器件击穿,确保静态功耗极低。
  2. 击穿电压(Vbr):48.45V
    反向电压达到此值时,器件开始击穿并进入低阻抗状态,是浪涌防护的启动阈值,数值稳定(典型值),便于电路设计匹配。
  3. 钳位电压(Vc):70.1V
    当器件承受峰值脉冲电流时,两端的最大电压值,直接决定了后端元器件的安全上限(需确保Vc低于后端器件的耐压值)。
  4. 峰值脉冲电流(Ipp):8.56A
    指器件在指定脉冲波形下能承受的最大瞬时电流,结合Ppp可验证防护能力(Ipp≈Ppp/Vc=600W/70.1V≈8.56A,与参数一致)。
  5. 峰值脉冲功率(Ppp):600W@10/1000μs
    核心防护能力指标,600W的脉冲功率可承受中等强度的浪涌冲击;10/1000μs波形为行业通用浪涌测试波形(10μs上升沿、1000μs下降沿),贴合实际应用场景。
  6. 反向漏电流(Ir):1μA
    正常工作时的反向漏电流,数值极低可忽略,不影响电路静态功耗与信号完整性。

三、封装与物理特性

P6KE51A采用DO-15轴向引线封装,具有以下优势:

  • 体积小巧:轴向封装便于插件式PCB布局,无需特殊焊接工艺,适合批量生产;
  • 机械可靠性:封装材料耐冲击、耐温,可承受常规焊接温度(如260℃回流焊);
  • 引脚兼容性:标准引脚间距与尺寸,与同类TVS器件引脚通用,替换方便。

四、工作环境适应性

P6KE51A的工作温度范围为**-55℃~+150℃**,覆盖工业级宽温要求,可适应:

  • 户外设备:太阳能控制器、安防摄像头(高低温交替);
  • 工业控制:PLC、传感器节点(车间高低温环境);
  • 汽车电子:车载辅助系统(部分区域温度波动大)。

五、典型应用场景

结合参数特点,P6KE51A适用于以下场景:

  1. 工业控制电路:PLC输入输出端口、传感器接口的浪涌防护;
  2. 通信设备:路由器、交换机的电源端口及以太网接口;
  3. 电源适配器:12V/24V电源适配器的输出端防护;
  4. 汽车电子:车载显示屏、胎压监测传感器的过压保护;
  5. 消费电子:机顶盒、智能音箱的电源浪涌防护。

六、选型与使用注意事项

  1. 电压匹配:电路正常工作电压需低于Vrwm(43.6V),避免静态击穿;
  2. 极性确认:单向TVS仅防护反向浪涌,需确认电路浪涌方向与器件极性一致;
  3. 功率匹配:600W适用于中等功率浪涌场景(如100W以内电源系统);
  4. 并联安装:TVS需与被保护电路并联,不可串联(串联会阻断正常电流)。

P6KE51A凭借稳定的防护性能、宽温适应性及通用封装,成为电子电路浪涌防护的实用选择,可有效降低瞬态过压导致的元器件损坏风险,提升设备可靠性。

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