WMSIC Electronic Components

RUILON SMBJ15CA

ModelSMBJ15CA
PackageDO-214AA(SMB)
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 SMBJ15CA
Type
RUILON
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RUILON
Electronic Component
SMBJ15CA
Electronic Component
1
Package
DO-214AA(SMB)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.232g
Electronic Component
1
Electronic Component
BM0241222338
Operating Temperature
55℃~+150℃
Voltage
24.4V
Electronic Component
IEC 61000-4-4;IEC 61000-4-2
Current(Ir)
1uA
Voltage(VBR)
19.2V

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

SMBJ15CA 产品概述

一、产品简介

SMBJ15CA(品牌:RUILON/瑞隆源)是一款双向瞬态抑制二极管(TVS),用于对电子线路承受的瞬态过压、静电放电(ESD)及电快速瞬变(EFT)提供保护。器件封装为DO-214AA(SMB),适用于电源线、信号线及车载、通信、工业控制等受干扰环境中的过压防护。

二、主要电气参数

  • 类型:TVS,双向
  • 反向截止电压 Vrwm:15V
  • 击穿电压(Vbr):19.2V
  • 钳位电压(Vc)典型值:24.4V
  • 峰值脉冲电流 Ipp:24.6A(10/1000µs)
  • 峰值脉冲功率 Ppp:600W(10/1000µs)
  • 反向漏电流 Ir:1µA
  • 工作温度:-55℃ 至 +150℃
  • 防护标准:符合 IEC 61000-4-4(EFT)与 IEC 61000-4-2(ESD)

三、性能特点

  • 双向结构可在双极性冲击下对称导通,适合交流或差分信号保护。
  • 低静态漏电流(1µA),不会对低电流电路造成明显影响。
  • 高峰值脉冲功率(600W,10/1000µs)与较大峰值脉冲电流,能够承受较强的瞬态能量。
  • 钳位电压24.4V(典型)能有效将瞬态电压钳位在可接受范围内,保护后级器件。
  • 宽温度范围和工业级可靠性,适应恶劣环境工作。

四、典型应用场景

  • 汽车电源总线与传感器接口的瞬态抑制(需注意车规认证要求)。
  • 通信设备电源和信号端口的ESD/EFT保护。
  • 工业控制器、PLC、变频器等受雷击、开关干扰影响的场合。
  • 家电、消费电子中对电源浪涌和静电敏感的模块。

五、封装与安装

  • 封装:DO-214AA(SMB),适用于自动贴装与回流焊工艺。
  • 推荐将器件尽量靠近被保护端口或器件放置,以减小寄生感抗与回路面积,从而提高抑制效果。
  • 焊接时遵循SMB封装通用的回流和波峰焊规范,控制温度与焊接时间以保证可靠性。

六、选型与设计注意事项

  • 工作电压裕量:Vrwm为15V,常用于12V系统或稍高允许余量的场合;若系统额定电压接近或高于15V,应选用更高Vrwm等级。
  • 钳位能力与后级承受能力匹配:钳位电压24.4V为典型值,需确保后级器件在该钳位电压下不被损坏。
  • 能量吸收能力:Ppp和Ipp基于10/1000µs波形,评估实际脉冲波形与能量时应按对应波形校正。
  • 双向或单向选择:SMBJ15CA为双向,适合双向浪涌或交流应用;仅单向保护请改用单向型号。

七、可靠性与标准认证

  • 器件具备对IEC 61000-4-2(静电放电)与IEC 61000-4-4(电快速瞬变)等抗扰度要求的防护能力,适用于需要满足这些标准的设计。
  • 长期工作温度范围宽(-55℃~+150℃),适合工业级与部分车载环境,但车规级应用请确认器件是否通过对应车规认证。

八、使用与保存建议

  • 存放在干燥环境,避免潮湿与腐蚀性气体;未封装使用时建议防静电包装保护。
  • PCB布局中将TVS尽量靠近需要保护的接口,同时提供良好散热路径以利于吸收脉冲能量。
  • 在高能量、反复冲击环境下,考虑使用与之匹配的旁路元件或更高功率等级的TVS以延长寿命。

结论:SMBJ15CA为一款面向中等能量瞬态抑制的双向TVS,具有低漏电、高脉冲能量吸收能力和工业级温度适应性,适用于12V等级电源及信号线的ESD/EFT保护。选型时应综合工作电压、钳位要求和实际脉冲能量进行验证。

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