WMSIC Electronic Components

Brightking SMCJ350CA

ModelSMCJ350CA
PackageDO-214AB
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 SMCJ350CA
Type
BRIGHTKING
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Brightking
Electronic Component
SMCJ350CA
Electronic Component
1
Package
DO-214AB
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.361g
Electronic Component
1
Electronic Component
BM0265619978
Operating Temperature
55℃~+150℃
Voltage
567V
Electronic Component
IEC 61000-4-2
Current(Ir)
1uA
Voltage(VBR)
432V

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

Brightking SMCJ350CA 双向TVS二极管产品概述

一、核心电气参数解析

SMCJ350CA作为双向瞬态抑制二极管(TVS),核心参数精准匹配过压防护核心需求,各参数定义清晰且具备实用价值:

  • 极性:双向:无需区分正负极,可直接并联在电路两端,同时应对正负双向浪涌脉冲,简化安装流程;
  • 反向截止电压(Vrwm):350V:正常工作状态下,反向电压≤350V时器件处于截止态,不影响电路正常运行,适配350V以下电压等级的电路;
  • 击穿电压(Vbr):432V:反向电压超过此值时,器件快速击穿(响应时间ns级),进入钳位工作模式,启动防护;
  • 钳位电压(Vc):567V:当峰值脉冲电流(Ipp)达2.6A时,器件两端电压被稳定钳位在567V以内,有效抑制浪涌对后级敏感元件(如IC、传感器)的损坏;
  • 反向漏电流(Ir):1μA:截止态下漏电流极小,避免额外功率损耗,适合低功耗电路设计;
  • 工作温度范围:-55℃~+150℃:覆盖工业级宽温环境,可适应高温车间、低温户外等极端工况。

二、封装与品牌背景

  • 封装:SMC(DO-214AB):表面贴装封装,体积小巧(典型尺寸:6.1mm×5.1mm×2.3mm),兼容自动化贴片生产,适合高密度PCB设计(如小型电源、便携式设备);
  • 品牌:Brightking(台湾君耀):全球知名过压保护器件厂商,产品广泛应用于工业、通信、汽车等领域,SMCJ350CA延续其高可靠性设计,符合RoHS环保标准,批量一致性好。

三、典型应用场景

SMCJ350CA的双向防护特性与宽温性能,使其适用于多场景瞬态过压防护:

  1. 工业控制电路:PLC输入输出模块、传感器接口,应对车间电网浪涌、开关瞬态干扰;
  2. 电源模块:AC/DC转换电路、开关电源输出端,抑制雷击感应、负载突变产生的过压;
  3. 通信设备:基站射频模块、路由器接口,符合IEC 61000-4-2静电放电(ESD)防护要求,降低设备故障风险;
  4. 汽车电子(部分场景):车载电源、温度传感器电路,适应-40℃~125℃常规车载环境,150℃上限可覆盖高温工况;
  5. 医疗设备:监护仪、输液泵接口,保障设备稳定运行与患者安全。

四、性能优势特点

  1. 双向无极性:无需区分正负极,安装效率提升,避免焊接错误;
  2. 高浪涌耐受:2.6A峰值脉冲电流能力,可应对常见瞬态浪涌(如雷击、静电放电);
  3. 低功耗设计:1μA反向漏电流,不增加电路额外功耗,适合低功耗设备;
  4. 宽温可靠性:-55℃~150℃工作范围,通过高低温循环测试,极端环境下性能稳定;
  5. 小体积适配:SMC封装兼容小型化设计,满足消费电子、便携式设备的空间需求;
  6. 标准合规:符合IEC 61000-4-2静电防护标准,满足EMC电磁兼容要求。

五、应用注意事项

  • 安装方式:需并联在被保护电路两端(与被保护元件并联),不可串联;
  • 焊接温度:回流焊峰值温度≤260℃(持续时间≤30s),手工焊温度≤350℃(持续时间≤3s),避免高温损坏器件;
  • 选型匹配:需根据电路正常工作电压选择对应Vrwm的TVS,SMCJ350CA适用于350V以下电压的电路保护。

SMCJ350CA凭借双向防护、宽温性能与小体积封装,成为工业、通信等领域过压防护的实用选择,可有效提升电路抗干扰能力与可靠性。

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