WMSIC Electronic Components

Brightking SMAJ54CA/TR13 SMAJ54CA

ModelSMAJ54CA/TR13
PackageSMA(DO-214AC)
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Brightking SMAJ54CA / TR13
Type
SMA(DO-214AC)
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Brightking
Electronic Component
SMAJ54CA/TR13
Electronic Component
1
Package
SMA(DO-214AC)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.122g
Electronic Component
1
Electronic Component
BM0264590719
Voltage
87.1V
Current(Ir)
1uA
Voltage(VBR)
60V
Electronic Component
Electronic Component
Electronic Component
5000

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

Brightking SMAJ54CA/TR13 瞬态抑制二极管(TVS)产品概述

SMAJ54CA/TR13是台湾君耀(Brightking)推出的双向瞬态抑制二极管(TVS),采用SMA(DO-214AC)表面贴装封装,专为54V工作电压系统的瞬态过压防护设计,核心作用是快速钳位浪涌电压,保护后端敏感电子元器件免受雷击、ESD、电源瞬变等异常冲击。

一、产品核心功能与定位

作为TVS器件,SMAJ54CA/TR13的核心功能是瞬态过压防护:当电路中出现瞬间过压(如雷击感应、开关瞬态、静电放电)时,器件能在纳秒级时间内从截止状态快速击穿导通,将过压钳位到安全范围,避免后端IC、传感器、通信模块等敏感元件因过压损坏。

其双向极性设计,支持正负两个方向的过压防护,无需区分安装极性,适配单极性或双极性电路的防护需求。

二、关键电气参数解析

SMAJ54CA/TR13的电气参数精准匹配54V系统的防护要求,核心参数及意义如下:

  1. 反向截止电压(Vrwm):54V
    器件能长期稳定承受的最大反向工作电压,系统正常工作电压需≤54V,确保器件处于截止状态,不影响电路功耗与信号完整性。
  2. 击穿电压(Vbr):60V
    当瞬态过压超过54V后,器件将在60V左右进入击穿状态,该值略高于Vrwm,避免正常电压波动触发误保护。
  3. 钳位电压(Vc):87.1V
    击穿导通后,器件能将过压钳位在87.1V(典型值),确保后端电路电压不超过其耐受极限(需结合后端元件参数匹配)。
  4. 峰值脉冲功率(Ppp):400W
    对应8/20μs标准浪涌脉冲波形(TVS行业通用测试条件),器件能承受的最大瞬态功率,适配常见浪涌场景(如雷击感应浪涌通常在几百瓦量级)。
  5. 峰值脉冲电流(Ipp):4.6A
    8/20μs脉冲下的最大浪涌电流,结合Ppp计算:(Ipp = Ppp / Vc \approx 400W / 87.1V \approx 4.6A),直观反映器件的电流耐受能力。
  6. 反向漏电流(Ir):1μA
    正常截止状态下的反向漏电流极小,对电路功耗影响可忽略,保证信号与电源的纯净性。

三、封装与机械特性

SMAJ54CA/TR13采用SMA(DO-214AC)表面贴装封装,具备以下优势:

  • 小型化设计:封装尺寸约为2.29mm(长)×1.60mm(宽)×1.12mm(高),适合高密度PCB布局(如小型化工业模块、车载电子单元);
  • 贴装兼容性:引脚间距符合SMT自动贴装标准,可通过回流焊、波峰焊等工艺安装,生产效率高;
  • 机械可靠性:封装材料采用耐高温环氧树脂,能承受焊接温度(如260℃回流焊),且具备一定抗机械应力能力。

四、典型应用场景

结合参数特性,SMAJ54CA/TR13主要应用于54V电压等级的过压防护场景,典型包括:

  1. 工业控制领域:PLC输入输出接口、传感器模块、电机驱动电路的电源与信号线路防护;
  2. 通信设备:基站射频模块、光纤收发器、以太网接口的瞬态浪涌防护;
  3. 汽车电子:车载摄像头、毫米波雷达、车身控制模块(BCM)的辅助电源线路防护(适配12V/24V系统升压后的54V供电);
  4. 消费电子:高端快充充电器、智能音箱、智能家居设备的电源瞬变防护(应对插拔浪涌、雷击感应)。

五、选型与使用注意事项

  1. 参数匹配:需确认系统正常工作电压≤54V,瞬态浪涌功率≤400W,避免器件过载;
  2. 布局建议:安装在被保护电路的输入端附近,减少引线长度(降低引线电感,提升瞬态响应速度);
  3. 极性确认:双向TVS无需区分正负极,安装时无需额外判断;
  4. 环境适应性:君耀该系列器件通常符合工业级温度范围(-55℃~150℃),可适配户外、高温等恶劣环境。

综上,SMAJ54CA/TR13以双向防护、精准钳位、小封装等特性,成为54V系统过压防护的高性价比选择,广泛适配工业、通信、汽车电子等领域的小型化设计需求。

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