WMSIC Electronic Components

RUILON P6KE18CA

ModelP6KE18CA
PackageDO-204AC(DO-15)
BrandRUILON
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
RUILON P6KE18CA
Type
RUILON
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RUILON
Electronic Component
P6KE18CA
Electronic Component
1
Package
DO-204AC(DO-15)
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.331g
Electronic Component
1
Electronic Component
BM0264717337
Operating Temperature
55℃~+150℃
Voltage
25.2V
Current(Ir)
1uA
Voltage(VBR)
18.9V
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.

RUILON P6KE18CA瞬态抑制二极管(TVS)产品概述

RUILON(瑞隆源)P6KE18CA是一款专为电子设备瞬态过压防护设计的轴向引线瞬态抑制二极管(TVS),采用DO-204AC(DO-15)封装,凭借宽温度范围、高脉冲耐受能力及低漏电流特性,成为通信、工业控制、消费电子等领域的常用防护器件。

一、核心技术类别与防护原理

P6KE18CA属于瞬态抑制二极管(TVS) 范畴,核心作用是在电路遭遇瞬态过压(如雷击、静电放电、开关浪涌等)时,快速从高阻态切换至低阻态,将过压钳位至安全范围,吸收瞬态脉冲能量,从而保护后端敏感电子元件(如IC、传感器、电源模块等)免受损坏。其响应速度通常在纳秒级,远快于普通稳压管,能有效应对快速瞬态脉冲。

二、关键电气参数深度解析

P6KE18CA的核心参数决定了其防护能力与适用场景,具体解析如下:

  1. 反向截止电压(Vrwm):15.3V
    指器件正常工作时可承受的最大反向电压,此时TVS处于高阻态,反向漏电流极小(1μA),不会影响电路正常运行。选型时需确保该参数高于电路实际工作电压(如12V直流电路适配性良好)。
  2. 击穿电压(Vbr):18.9V
    反向电压超过此值时,TVS开始导通并进入钳位工作状态,是器件从高阻到低阻的切换阈值。
  3. 钳位电压(Vc):25.2V
    当施加10/1000μs 标准脉冲波形(上升时间10μs、半峰值时间1000μs)时,器件可将过压钳位至25.2V以内,该值需低于被保护元件的最大耐压,避免后端器件受损。
  4. 峰值脉冲电流(Ipp):24A@10/1000μs
    对应波形下可承受的最大瞬态脉冲电流,反映器件的电流吸收能力;若脉冲能量过大,需并联多只器件分散能量。
  5. 峰值脉冲功率(Ppp):600W@10/1000μs
    脉冲功率是电流与钳位电压的乘积(Ipp×Vc≈600W),直接体现器件的防护功率等级,适合中功率电路的过压防护需求。
  6. 反向漏电流(Ir):1μA
    Vrwm下的反向漏电流极低,可忽略不计,适合低功耗电路(如电池供电设备),避免静态功耗浪费。
  7. 工作温度范围:-55℃~+150℃
    宽温设计覆盖工业级与部分汽车级场景(需确认汽车级认证,但参数范围满足极端环境需求),可在高温焊接、低温存储环境下稳定工作。

三、封装与可靠性设计

P6KE18CA采用DO-204AC(DO-15) 轴向引线封装,具有以下优势:

  • 体积小巧:直径约φ2.7mm,长度约5.2mm,适合PCB插件布局,不占用过多空间;
  • 散热性良好:塑料封装搭配轴向引线,可通过PCB焊盘有效散热,避免脉冲冲击后的局部过热;
  • 机械可靠性:封装结构坚固,可承受振动、冲击等机械应力,适合工业现场环境。

四、典型应用场景

结合参数特性,P6KE18CA适用于以下场景:

  1. 通信设备:交换机、路由器、光模块的电源端口、以太网接口过压防护;
  2. 工业控制:PLC输入输出模块、传感器接口、电机驱动电路的浪涌抑制;
  3. 消费电子:机顶盒、显示器、打印机的电源输入端防护;
  4. 电源系统:开关电源、UPS、DC-DC转换器的输出端瞬态防护;
  5. 汽车电子(辅助):部分非车载核心电路(如车载充电器辅助端口)的过压防护(需结合汽车级认证)。

五、选型与使用注意事项

  1. 参数匹配原则:
    • Vrwm ≥ 电路正常工作电压(如12V电路选Vrwm15.3V合理);
    • Vc ≤ 被保护元件的最大耐压(如后端IC耐压30V则适配);
    • Ppp ≥ 实际脉冲功率(需留有1.2~1.5倍裕量)。
  2. 接线方式:
    TVS需并联在被保护电路两端(双向管无需区分极性,单向管需注意反向接法),串联会导致器件损坏。
  3. 散热与布局:
    DO-15封装需靠近被保护元件布局,PCB焊盘需适当增大以提升散热能力,避免脉冲冲击后过热。
  4. 多次脉冲耐受:
    TVS可承受多次脉冲冲击,但需在额定参数内使用,避免过应力导致性能下降。

总结

RUILON P6KE18CA作为一款高性价比TVS管,凭借宽温范围、600W峰值脉冲功率、低漏电流及DO-15封装优势,可满足多领域电子设备的瞬态过压防护需求,是替代进口同类器件的可靠选择。选型时需结合电路实际参数匹配,确保防护效果稳定。

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