Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
Brightking SMBJ78CA/TR13 SMBJ78CA
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Brightking SMBJ78CA / TR13
- Type
- BRIGHTKING
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Brightking
- Electronic Component
- SMBJ78CA/TR13
- Electronic Component
- 1
- Package
- SMB(DO-214AA)
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.198g
- Electronic Component
- 1
- Electronic Component
- BM0257356757
- Voltage
- 126V
- Current(Ir)
- 1uA
- Voltage(VBR)
- 86.7V
- Electronic Component
- Electronic Component
- Electronic Component
- 3000
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SMBJ78CA/TR13（78V）双向 TVS 二极管 产品概述
一、产品简介
SMBJ78CA/TR13 是台湾君耀（Brightking）出品的一款双向瞬态电压抑制器（TVS）二极管，封装为 SMB（DO-214AA）。该器件用于吸收瞬态过电压脉冲，保护敏感电子元件免受雷击、开关瞬变和静电放电等冲击。其额定反向截止电压（Vrwm）为 78V，适合中高压直流或差分线路的过压保护。
二、主要参数
- 极性：双向
- 反向截止电压 Vrwm：78V
- 击穿（击穿电压）：86.7V
- 钳位电压（典型）：126V
- 峰值脉冲电流 Ipp：4.8A
- 峰值脉冲功率 Ppp：600W
- 反向漏电流 Ir：1 μA
- 类型：TVS（瞬态电压抑制器）
- 封装：SMB (DO-214AA)
- 品牌：Brightking（台湾君耀）
三、特点与优势
- 双向设计，可在正负极两方向吸收瞬态脉冲，适用于交流或反向瞬变场景。
- 高峰值功率 600W 和峰值脉冲电流 4.8A，能有效钳制短时大能量脉冲，降低被保护节点电压到安全水平（钳位电压 126V）。
- 低反向漏电（1 μA），在正常工作情况下对电路影响微小，适合对静态功耗敏感的应用。
- 标准 SMB 封装，便于自动化贴片与焊接，适配常用布局和散热条件。
四、典型应用场景
- 电源线上对高压直流或交流瞬态的保护（邮电、工业电源）。
- 通信设备、基站和电力电子中的浪涌及雷击防护。
- 逆变器、驱动器和电机控制器等含高压开关器件的保护电路。
- 各类接口保护（差分信号线、直流总线等）需要双向钳位的场合。
五、封装与安装建议
SMB（DO-214AA）封装便于手工或回流焊装配。安装时应：
- 按规范进行焊接，避免超过器件的热应力极限；
- 保持良好散热路径，必要时增加铜箔面积以提高脉冲能量承受能力；
- 做好防静电措施，器件在运输与装配过程中避免静电损伤。
六、选型与注意事项
- 根据工作电压与允许的最大钳位电压选择合适 Vrwm，确保在最大瞬变能量下被保护负载不超限；
- 若系统可能承受更高能量或更长脉冲宽度，应选用更高 Ppp / Ipp 的器件或并联、并级方案，并注意并联时的均流问题；
- 检查工作环境温度对漏电流与击穿特性的影响，必要时参照厂方完整数据手册进行热失配与老化评估。
七、可靠性与认证
Brightking（台湾君耀）产品通常通过相应的质量检验流程，适用于工业级应用。在正式设计中建议参考厂商数据表与可靠性试验报告，满足特定行业的安规与电磁兼容要求。
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