WMSIC Electronic Components

Brightking P6KE33A/B P6KE33A

ModelP6KE33A/B
PackageDO-204AC(DO-15)
BrandBrightking
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
Brightking P6KE33A / B
Type
BRIGHTKING
Minimum package
2000 盒

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Brightking
Electronic Component
P6KE33A/B
Electronic Component
1
Package
DO-204AC(DO-15)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.446g
Electronic Component
1
Electronic Component
BM0265144299
Voltage
45.7V
Current(Ir)
1uA
Voltage(VBR)
31.4V
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.

Brightking P6KE33A/B 瞬态抑制二极管(TVS)产品概述

一、产品核心定位与基本属性

Brightking(台湾君耀)P6KE33A/B 属于轴向引线式单向/双向瞬态抑制二极管,是针对低中压电路设计的过压防护核心器件。其采用行业通用的DO-15 插件封装,适配常规 PCB 布局,广泛应用于电源端口、通信接口、工业控制等场景的瞬态冲击防护,核心功能是快速钳位过压,保护后端敏感元件(如 MCU、传感器、通信芯片)免受雷击、ESD、负载突变等产生的尖峰电压损坏。

二、关键电气参数详解

P6KE33A/B 以精准的参数设计实现可靠防护,核心参数如下(以单向版本 P6KE33A 为例):

参数 典型值 说明 反向截止电压(Vrwm) 28.2V 正常工作状态下可承受的最大反向电压,避免TVS误触发 击穿电压(Vbr) 31.4V TVS开始导通的电压阈值,比Vrwm高11%,确保正常电压下不工作 钳位电压(Vc) 45.7V 8/20μs标准脉冲下的最大钳位电压,保护后端元件(如MCU耐压通常<5V) 峰值脉冲电流(Ipp) 13.3A 单次脉冲可承受的最大电流,满足中等强度瞬态冲击(如雷击感应过压) 峰值脉冲功率(Ppp) 600W 单次脉冲功率容量,适配常规电源/接口的防护需求 反向漏电流(Ir) 1μA 远低于常规TVS(通常10μA以上),不影响低功耗电路的正常工作

三、封装与物理特性

P6KE33A/B 采用DO-15 轴向插件封装,具备以下特点:

  1. 尺寸紧凑:封装直径约2.5mm,长度约10mm,适合高密度PCB布局;
  2. 安装便捷:轴向引线设计,可通过波峰焊或手工焊接,无需特殊工具;
  3. 耐温性强:常规工作温度范围为-55℃~+150℃,满足工业级环境(如户外设备、车载辅助电路)要求;
  4. 标识清晰:产品表面印有型号,色环端为负极(单向版本),便于极性确认。

四、典型应用场景

结合参数特性,P6KE33A/B 主要应用于以下场景:

1. 低中压电源端口防护

  • 24V DC电源系统(如PLC、工业传感器供电):并联于电源输出端,抑制雷击感应过压(典型值200V以上),将电压钳位至45.7V以下,保护后端DC-DC转换器、MCU;
  • 12V/5V消费电子电源(如路由器、智能音箱):低漏电流(1μA)不影响设备待机功耗,同时应对ESD、电源浪涌。

2. 通信接口防护

  • RS485/RS232接口:双向版本P6KE33B可实现正负脉冲双向防护,避免通信芯片因共模干扰损坏;
  • USB 2.0接口:配合ESD二极管使用,补充防护中等强度浪涌(如电源线上的雷击感应)。

3. 工业控制电路

  • 传感器输入输出端:保护热电偶、压力传感器等敏感元件免受现场电磁干扰产生的尖峰电压;
  • 继电器线圈:抑制线圈断开时的反电动势(典型值可达数百伏),延长继电器寿命。

4. 汽车电子辅助电路

  • 车载导航、行车记录仪的12V电源端口:耐温范围(-55℃~+150℃)适配车载环境,抑制汽车点火、负载切换产生的浪涌。

五、产品优势与注意事项

(一)核心优势

  1. 低漏电流设计:1μA反向漏电流,对低功耗电路无额外负担,适合电池供电设备;
  2. 快速响应:TVS响应时间<1ns,比压敏电阻(μs级)快1000倍以上,可瞬间抑制尖峰电压;
  3. 参数一致性好:君耀原厂工艺成熟,击穿电压、钳位电压偏差小,防护可靠性高;
  4. 成本效益高:DO-15封装成本低于贴片封装,适合批量应用。

(二)注意事项

  1. 极性确认:P6KE33A为单向TVS,需按色环端(负极)正确焊接;P6KE33B为双向TVS,无需区分极性;
  2. 脉冲降额:600W为单次脉冲功率,若应用场景存在高频重复脉冲(如ESD多次放电),需参考君耀datasheet的降额曲线(如1kHz重复率下功率降额至10%);
  3. 引线应力:DO-15封装引线较细,焊接时避免过度弯曲,防止内部芯片断裂;
  4. 并联使用:若需更高防护功率(如1200W),可并联2个P6KE33A,注意并联器件需参数一致。

六、与同类产品的差异

对比市场同功率(600W)、同电压(33V系列)TVS:

  • 漏电流更低:君耀P6KE33A漏电流1μA,竞品多为5~10μA,适合低功耗设备;
  • 钳位电压更精准:竞品钳位电压偏差±5%,君耀偏差±3%,防护可靠性更高;
  • 耐温范围更广:竞品常规耐温-40℃+125℃,君耀覆盖-55℃+150℃,适配工业级场景。

综上,Brightking P6KE33A/B 是一款性价比高、可靠性强的瞬态抑制二极管,可满足大部分低中压电路的过压防护需求,尤其适合对漏电流、耐温性有要求的工业与消费电子场景。

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