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Brightking SMAJ12CA-AT/TR13 SMAJ12CA
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Brightking SMAJ12CA-AT / TR13
- Type
- BRIGHTKING
- Minimum package
- 5000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Brightking
- Electronic Component
- SMAJ12CA-AT/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
- BM0264590339
- Operating Temperature
- 55℃~+150℃
- Voltage
- 19.9V
- Current(Ir)
- 1uA
- Voltage(VBR)
- 13.3V
- 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.
Brightking SMAJ12CA-AT/TR13 瞬态抑制二极管产品概述
一、核心参数与防护性能
Brightking SMAJ12CA-AT/TR13是一款双向瞬态抑制二极管（TVS），专为低压电路的过压防护设计，核心参数及性能特点如下：
- 反向截止电压（Vrwm）：12V：适配工作电压≤12V的电路，正常工作时呈高阻态，无额外功耗；
- 击穿电压（Vbr）：13.3V（典型值）：过压触发的关键阈值，确保电路电压超过12V后快速导通防护；
- 钳位电压（Vc）：19.9V（@Ipp=20.1A）：过压时被保护电路的最高电压，需低于被保护器件（如IC）的最大耐压；
- 峰值脉冲电流（Ipp）：20.1A：可承受单次/重复浪涌脉冲，应对常见电磁干扰；
- 峰值脉冲功率（Ppp）：400W：对应10/1000μs浪涌波形的最大耐受功率，覆盖多数设备防护需求；
- 反向漏电流（Ir）：1μA（@Vrwm）：静态漏电流极小，不影响电路正常工作；
- 工作温度：-55℃~+150℃：工业级宽温设计，适应极端环境（如高温工业现场、低温户外设备）。
二、封装与可靠性设计
该器件采用SMA（DO-214AC）贴片封装，具有以下优势：
- 体积小巧：尺寸约2.4×1.6×1.0mm，适合高密度PCB布局（如手机、小型工业模块）；
- 工艺兼容：符合表面贴装（SMT）工艺，可自动化生产，降低组装成本；
- 可靠性稳定：宽温范围满足工业级要求，反向漏电流长期工作无老化；TVS响应速度达ns级，可瞬间抑制浪涌（如静电放电、雷击感应）。
三、典型应用场景
SMAJ12CA-AT/TR13广泛用于低压电路的过压防护，典型场景包括：
- 消费电子：手机、平板、笔记本的USB接口、充电端口，防止静电/浪涌损坏；
- 工业控制：PLC、传感器、变频器的I/O端口，应对工业现场电磁干扰；
- 通信设备：路由器、交换机、基站的以太网/射频接口，抑制雷击或电源浪涌；
- 低压电源：≤12V直流电源输出端，防止负载切换或外部干扰导致过压。
四、选型与应用注意事项
- 电压匹配：需确保电路工作电压≤12V（Vrwm），避免器件常态导通；
- 钳位验证：Vc（19.9V）需低于被保护器件的最大耐压（如IC的Vmax≥20V），否则防护无效；
- 布局要求：安装时尽量靠近被保护端口（引线长度≤1cm），减少引线电感对防护效果的影响；
- 浪涌匹配：400W功率可应对IEC61000-4-5标准中2kV/1.2/50μs、1kV/8/20μs等常见浪涌等级。
总结
Brightking SMAJ12CA-AT/TR13凭借双向防护、宽温范围、小封装、高可靠性等优势，成为消费电子、工业控制、通信领域低压电路过压防护的优选器件，尤其适合对体积和环境适应性要求较高的场景。
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