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Brightking SMAJ64A/TR13 SMAJ64A
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Brightking SMAJ64A / TR13
- Type
- BRIGHTKING
- Minimum package
- 5000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Brightking
- Electronic Component
- SMAJ64A/TR13
- Electronic Component
- 1
- Package
- SMA
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.124g
- Electronic Component
- 1
- Electronic Component
- BM0264080989
- Voltage
- 103V
- Current(Ir)
- 1uA
- Voltage(VBR)
- 71.1V
- 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.
SMAJ64A/TR13 (Brightking 台湾君耀) 产品概述
一、产品简介
SMAJ64A/TR13 是 Brightking（台湾君耀）推出的一款单向 TVS 二极管，封装为 SMA (DO-214AC)，用于瞬态电压抑制和浪涌保护。器件针对直流或单向脉冲环境设计，能在短时高能脉冲下迅速钳位电压，保护后端敏感电子元件免受过压损害。
二、主要电气参数
- 极性：单向（有极性，标示阴极端带环）
- 反向工作电压 Vrwm：64V（推荐不超过此直流稳压值长期运行）
- 击穿电压 VBR：71.1V（在制造商规定测试电流下测得）
- 钳位电压（典型）：103V（在峰值脉冲条件下钳位）
- 峰值脉冲电流 Ipp：3.9A（器件在规定波形下可承受的峰值电流）
- 峰值脉冲功率 Ppp：400W（按行业标准测试波形测量）
- 反向漏电流 Ir：1µA（在 Vrwm 下的典型漏电）
以上参数为典型/最大值，具体应用时请参考完整数据手册和测试条件。
三、封装与物理特性
SMA（DO-214AC）表面贴装封装，尺寸小、热阻适中，便于自动化贴装与回流焊。器件外壳标有极性环，便于正确安装。适合空间受限的电源输入、接口保护板和模块化电源设计。
四、典型应用场景
- 48V/±48V 通信与PoE供电线路保护（Vrwm 64V 可覆盖常见48V系统）
- 开关电源输入端和DC总线的浪涌抑制
- 工业控制、仪表及继电器驱动电路的过压保护
- I/O 端口、信号线的抗浪涌和雷击脉冲保护
五、设计与选型建议
- 选择时确保 Vrwm 高于系统最大正常工作电压并留有安全裕量；Vrwm=64V 适用于48V类系统。
- 钳位电压 103V 表明在冲击时输出端仍会被提升到该水平，需确认被保护器件能承受该瞬态电压。
- 峰值脉冲功率与电流受测试波形及环境温度影响，实际设计中应对 Ppp 做热/能量降额处理并考虑重复浪涌次数。
- 避免并联多个 TVS 作为单一浪涌路径（电流分配不均），必要时采用并联+均流电阻或选更高能量等级器件。
六、可靠性与安装注意事项
- 尽量将 TVS 放置在受保护点与外部连接器之间、靠近被保护引线的入板端，缩短走线并增大焊盘宽度以改善热散。
- 回流焊工艺需按厂家建议的温度曲线，避免超温损伤封装和内部结构。
- 长期高温或频繁大能量冲击会降额器件寿命，应在系统设计中考虑热管理与浪涌能量分担。
SMAJ64A/TR13 以其适中的 Vrwm 和较高的瞬态抑制能力，适合用于48V等级电源和工业接口的浪涌防护，是注重尺寸与性能平衡设计的常用选择。具体电气特性和测试条件请参照 Brightking 官方数据表以获得完整说明。
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