WMSIC Electronic Components

RUILON SMBJ190CA

ModelSMBJ190CA
PackageSMB(DO-214AA)
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
RUILON SMBJ190CA
Type
RUILON
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RUILON
Electronic Component
SMBJ190CA
Electronic Component
1
Package
SMB(DO-214AA)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.232g
Electronic Component
1
Electronic Component
BM0264889180
Operating Temperature
55℃~+150℃
Voltage
308V
Electronic Component
IEC 61000-4-4;IEC 61000-4-2
Current(Ir)
1uA
Voltage(VBR)
243.2V

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

SMBJ190CA 产品概述

一、产品简介

SMBJ190CA 是 RUILON(瑞隆源)推出的一款高能脉冲瞬态电压抑制二极管(TVS),采用 SMB(DO-214AA)封装,设计用于对高压线路和敏感电子设备提供稳健的瞬态浪涌和静电放电(ESD)保护。器件为双向结构,适合交流或双极性脉冲场合使用,具有较高的脉冲功率吸收能力和良好的钳位特性,常用于工业、通信、电源与电机驱动等系统的过压防护。

二、主要电气参数

  • 极性:双向(Bidirectional)
  • 反向截止电压 Vrwm:190 V
  • 钳位电压 Vc:308 V(在 Ipp 条件下)
  • 峰值脉冲电流 Ipp:2 A
  • 峰值脉冲功率 Ppp:600 W(10/1000 μs 波形)
  • 击穿电压 VBR:典型值 209 V;规格或个别测试值可达 243.2 V(请以供方正式曲线/数据表为准)
  • 反向漏电流 Ir:1 μA(典型/最大值,受温度和偏压影响)
  • 工作温度范围:-55 ℃ ~ +150 ℃
  • 防护等级/兼容标准:IEC 61000-4-4(电快速瞬变)、IEC 61000-4-2(静电放电)
  • 封装:SMB(DO-214AA)
  • 品牌:RUILON(瑞隆源)

三、特性与优势

  • 双向设计:对正反向突发脉冲均能提供对称钳位,适用于交流线路或双极性线路保护。
  • 高脉冲功率吸收能力:Ppp=600 W(10/1000 μs)可承受典型的工业浪涌事件,Ipp=2 A 时钳位电压 308 V,保证敏感元件不被高幅值瞬态电压损坏。
  • 低漏电流:Ir≈1 μA,有利于在高阻状态下减少负载影响,适合对漏电敏感的电路。
  • 宽工作温度:-55 ℃ ~ +150 ℃,适应苛刻工业环境。
  • 符合常见抗扰标准:对 ESD 与 EFT 有明确的兼容性,便于通过系统级电磁兼容(EMC)设计要求。

四、典型应用场景

  • 工业控制设备:PLC、变频器、伺服驱动等电源及控制回路的浪涌保护。
  • 电源与整流设备:直流总线、输入滤波、逆变器前端的突波钳位。
  • 通信与接口线路:供电线、信号传输线的过压及静电防护,尤其是需要双向保护的差分或交流信号。
  • 建筑与楼宇自动化:门禁、监控、电梯控制等系统的稳健防护。
  • 其他需要抗 ESD 与瞬态过压的场合。

五、封装与布局建议

  • 封装:SMB(DO-214AA),便于自动贴装与回流焊;体积适中,散热性能良好。
  • PCB 布局建议:
    • 将 TVS 放置在被保护节点的最靠近入口处,尽量缩短引线和走线长度以降低寄生电感。
    • 在器件附近设计充足的铜面积做散热片/热沉,或者使用过孔将热量引到背面铜层。
    • 对于高能量脉冲,避免在器件与敏感元件之间穿越长走线或环路,以减少感应耦合。

六、热与可靠性说明

  • Ppp=600 W 是针对 10/1000 μs 波形的脉冲能量能力,属于短时脉冲吸收能力,器件不适合长期承受该功率;在持续或频繁冲击场合,应评估平均功耗与热累积。
  • 在高温或高频脉冲环境中,应留出足够的安全裕度,并考虑增加并联器件或外部限流元件以延长寿命。

七、选型与采购建议

  • 确认系统的最大工作电压与瞬态幅值:Vrwm=190 V 表示器件在 190 V 以下处于反向截止状态,若被保护线路持续电压接近或超过此值,应选用更高 Vrwm 的型号或采用其他防护策略。
  • 对于需严格控制钳位电压的场合,请参考制造商完整的 V-I 曲线与典型测试条件,确保在指定 Ipp 下 Vc 满足系统耐压要求。
  • 订购时请注明完整料号与所需认证/测试报告(如需要 IEC 兼容性证明或批次测试数据)。

八、安装与存储注意事项

  • 焊接:采用推荐的回流曲线,避免过长的高温暴露;如需手工焊接,请避免对封装长期加热。
  • 存放:建议在干燥、静电控制的环境下存放,避免长期潮湿或强光直射。
  • ESD 防护:虽然器件用于抗 ESD,但在装配与测试中仍应采取常规静电防护措施,防止在非工作状态下的损坏。

结语:SMBJ190CA 以其双向保护、高脉冲能量吸收能力和工业级工作温度,适合在对突波、ESD 和电快速瞬变有较高要求的系统中作为末级或前端的浪涌抑制元件。选用时请结合系统实际工作电压、脉冲幅值和能量分布,参考厂家完整数据表以获得最佳保护效果。

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