WMSIC Electronic Components

Brightking SMBJ13CA-AT/TR13 SMBJ13CA

ModelSMBJ13CA-AT/TR13
PackageSMB(DO-214AA)
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 SMBJ13CA-AT / TR13
Type
BRIGHTKING
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Brightking
Electronic Component
SMBJ13CA-AT/TR13
Electronic Component
1
Package
SMB(DO-214AA)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.196g
Electronic Component
1
Electronic Component
BM0264590720
Operating Temperature
55℃~+150℃
Voltage
21.5V
Current(Ir)
28uA
Voltage(VBR)
14.4V
Electronic Component
Electronic Component

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

SMBJ13CA-AT/TR13 TVS二极管产品概述

一、产品核心定位与品牌背景

SMBJ13CA-AT/TR13是台湾君耀(Brightking)推出的双向瞬态抑制二极管(TVS),属于SMBJ系列,采用SMB(DO-214AA)表面贴装封装。作为低压电路过压保护的核心器件,其核心定位是针对12V级直流/交流电路的瞬态电压抑制,可有效应对静电放电(ESD)、雷击感应、开关浪涌等瞬态过压事件,保障MCU、传感器、接口芯片等敏感电子元件的安全。君耀作为国内保护器件领域的知名厂商,产品以高可靠性、宽温适应性著称,广泛应用于汽车电子、工业控制、消费电子等场景。

二、关键电气参数深度解析

该器件的电气参数围绕“低漏电流、宽脉冲耐受、精准钳位”设计,核心参数及实际意义如下:

  1. 极性与工作电压:双向极性设计,无需区分正负极,适配交流/直流电路;反向截止电压(Vrwm)13V,精准匹配12V级系统(如汽车12V电源、工业12V控制电路),正常工作时不导通,不影响电路功耗。
  2. 启动与钳位特性:击穿电压(Vbr)14.4V(约为Vrwm的1.1倍),是TVS启动的阈值电压——当电路电压超过此值时,TVS快速导通(响应时间ns级);峰值脉冲电流(Ipp)28A(8/20μs标准脉冲波形),峰值脉冲功率(Ppp)600W(Ipp×Vc≈28A×21.5V=602W,符合规格),可有效吸收强瞬态脉冲;钳位电压(Vc)21.5V(Ipp下的最大电压),在12V系统中可将过压限制在安全范围(多数敏感芯片耐压≥20V)。
  3. 漏电流与温宽:反向漏电流(Ir)仅28μA(Vrwm下),远低于常规TVS指标,避免干扰正常电路;工作温度范围-55℃~+150℃,覆盖汽车、工业等恶劣环境的温度需求。

三、封装与物理特性

该器件采用SMB(DO-214AA)封装,属于小型表面贴装封装,尺寸约为3.0mm(长)×2.5mm(宽)×1.5mm(高),引脚间距1.27mm,适配常规回流焊工艺,适合高密度PCB布局。封装材料为阻燃环氧树脂(UL94V-0等级),具备良好的机械强度与耐化学腐蚀性能,符合RoHS环保标准,无铅无卤。

四、可靠性与环境适应性

SMBJ13CA-AT/TR13的可靠性体现在:

  • 脉冲耐受能力:可承受多次8/20μs脉冲冲击(典型1000次以上),性能无明显衰减,满足长期过压保护需求;
  • 温宽适应性:-55℃~+150℃的宽温范围,可在汽车发动机舱(高温)、低温工业现场(如北方户外设备)稳定工作;
  • 漏电流稳定性:全温范围内漏电流波动小,不影响电路正常功耗与信号传输。

五、典型应用场景

  1. 汽车电子:车载12V电源系统、音响接口、胎压监测传感器、CAN总线接口的过压保护;
  2. 工业控制:PLC输入输出模块、温度/压力传感器接口、12V低压直流电源的浪涌抑制;
  3. 消费电子:智能手机/平板的USB Type-C接口、HDMI接口的ESD防护;
  4. 通信设备:路由器、交换机的以太网端口(12V供电部分)的瞬态保护。

六、电路设计注意事项

  1. 并联位置:需靠近被保护器件的输入端,减少引线电感(引线电感会导致实际钳位电压升高,削弱保护效果);
  2. 极性确认:双向设计无需区分正负极,直接并联即可,简化电路设计;
  3. 脉冲匹配:若电路可能出现更高脉冲电流,可并联多个器件(如2个并联可将Ipp提升至56A);
  4. 回流焊工艺:支持常规回流焊(温度峰值260℃左右,时间≤30s),无需特殊工艺。

该器件凭借双向设计、精准钳位与宽温适应性,成为12V级电路过压保护的高性价比选择,适用于对可靠性要求较高的工业与汽车场景。

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