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Brightking SMBJ70A/TR13 SMBJ70A
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Brightking SMBJ70A / TR13
- Type
- BRIGHTKING
- Minimum package
- 3000
Technical parameters
- Electronic Component
- Brightking
- Electronic Component
- SMBJ70A/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
- BM0258677743
- Voltage
- 113V
- Current(Ir)
- 1uA
- Voltage(VBR)
- 77.8V
- Electronic Component
- 3000
- Power(Ppp)
- 600W
- Current(Ipp)
- 5.3A
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SMBJ70A/TR13（70V 单向 TVS 二极管）产品概述
一、产品简介
SMBJ70A/TR13 为单向瞬态电压抑制器（TVS）二极管，品牌：Brightking（台湾君耀）。器件采用 SMB（DO‑214AA）贴片封装，专为抑制线路上的瞬态过电压和浪涌脉冲而设计，可在受干扰的电源和信号线上提供可靠保护。TR13 表示适合贴片自动化装带（Tape & Reel）供货方式，便于大批量 SMT 贴装。
二、主要电气参数
- 极性：单向（Unidirectional）
- 反向截止电压 Vrwm（Reverse Standoff Voltage）：70 V
- 击穿电压（Vbr）：77.8 V（典型/标称）
- 钳位电压（Vclamp）：113 V（典型，峰值脉冲条件下）
- 峰值脉冲电流 Ipp：5.3 A
- 峰值脉冲功率 Ppp：600 W
- 反向漏电流 Ir：1 µA（在 Vrwm 条件下典型）
- 类型：瞬态电压抑制器（TVS）
（注：上述参数为器件典型/标称值，实际应用中应参考完整数据表和测量条件。）
三、关键特性与优势
- 高能量吸收能力：600 W 峰值脉冲功率吸收能力，可应对工业级脉冲瞬变。
- 有效钳位：在规定脉冲电流下钳位电压约为 113 V，可限制过电压对后级电路的冲击。
- 低反向漏电：Vrwm 下典型漏电仅 1 µA，有利于降低待机功耗和避免误动作。
- 单向保护：对直流电源或单向信号线提供更快速、低阻抗的导通保护。
- SMB 封装：表面贴装封装适合自动化生产，兼顾功率散热与占板面积。
四、典型应用场景
- DC 电源输入、开关电源和逆变器的浪涌保护
- 通信设备、网关、基站的接口与电源防护
- 工业控制、仪器仪表中对高压瞬变的抑制
- 电池管理系统与车辆电子（要求满足系统电压兼容性时）
五、封装与可靠性建议
- 封装：SMB（DO‑214AA），适合回流焊工艺。TR13 带装便于贴片生产。
- 可靠性：推荐在实际环境温度和冲击能量下做热稳态与脉冲耐受验证；长期散热需考虑器件结‑壳热阻与 PCB 导热设计。
六、PCB 布局与使用建议
- 将 TVS 尽量靠近被保护端口或电源入口放置，最短路径到接地点（GND）。
- 确保地线短且宽，必要时使用多孔过孔或散热铜箔以提升散热和回流能力。
- 对于高能量浪涌场合，可并联限流元件（如熔断器、NTC、阻容）以分担冲击。
- 选择合适焊接与回流温度曲线，避免因焊接应力影响器件性能。
七、选型与采购提示
- 确认系统最大工作电压与 Vrwm 匹配，留足裕量以避免误触发。
- 参考完整数据手册获取钳位随脉冲波形（如 10/1000 µs）和不同 Ipp 的详细曲线。
- 选择带装（TR）产品可提高贴片效率，采购前确认卷盘尺寸与数量。
如需更详细的电气特性曲线、冲击波形下的钳位测试条件或可靠性认证信息，请提供需求以便获取或查阅完整数据手册。
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