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YANGJIE SMBJ5.0A
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
13
specifications
Core information
- Product name
- YANGJIE SMBJ5.0A
- Type
- DO-214AA(SMB)
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- YANGJIE
- Electronic Component
- SMBJ5.0A
- Electronic Component
- 1
- Package
- DO-214AA(SMB)
- Electronic Component
- 0.137g
- Electronic Component
- 1
- Electronic Component
- BM0230005015
- 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.
SMBJ5.0A 产品概述
一、产品简介
SMBJ5.0A 是扬杰（YANGJIE）出品的一款单向瞬态电压抑制（TVS）二极管，封装为 SMB（DO-214AA）。该器件专为瞬态过电压、防雷击与浪涌保护设计，适用于以 5V 及相近工作电压的电源线和信号线保护场景，能够在瞬态能量冲击下迅速夹紧电压，保护下游电路免受损坏。
二、主要电气参数
- 钳位电压（Vc）：9.2V（在规定冲击条件下）
- 反向截止电压 / 工作电压（Vrwm）：5V
- 击穿电压（Vbr）：7.07V
- 峰值脉冲功率（Ppp）：600W @ 10/1000μs
- 峰值脉冲电流（Ipp）：65.2A
- 反向漏电流（Ir）：800μA（在 Vrwm 条件下）
- 极性：单向
- 类型：TVS 二极管
- 工作温度范围：-55℃ ~ +150℃
三、结构与封装
本器件采用 SMB（DO-214AA）表面贴装封装，适合自动化贴装与回流焊工艺。封装具有良好的热耗散能力与机械强度，便于在工业级与车规附近环境中使用（若用于车规应用，请核对具体认证要求）。
四、性能特点
- 高能量吸收能力：600W（10/1000μs）峰值功率，可抑制大幅度浪涌。
- 低钳位电压：钳位电压约 9.2V，有利于保护对电压敏感的 5V 级电路。
- 快速响应：瞬态发生时能在纳秒级响应，限制过电压持续时间。
- 宽温度范围：支持-55℃ 到 +150℃ 工作环境，适应恶劣温度条件。
- 单向保护：在正向脉冲时表现为稳压/钳位特性，反向时为高阻态以减少漏电。
五、典型应用
- 5V 电源总线、USB/串口/以太网等通信接口的浪涌与静电防护；
- 工业控制、嵌入式系统及仪器仪表的输入/输出保护；
- 各类电源模块与电源管理电路的瞬态抑制（在车载应用前请确认车规认证）。
六、连接示意与注意事项
- 连接示意：单向 TVS 的阴极（标识端）接被保护的正电源或信号线，阳极接地。
- PCB 布局建议：保护点尽量靠近被保护器件，地线短且低阻，尽量提供良好散热铜箔；避免长走线以减少寄生电感。
- 工艺注意：按封装回流焊曲线焊接，避免过高回流温度和过长热循环，存放与焊接时注意防潮等级。
七、总结
SMBJ5.0A 是一款面向 5V 等级系统的高能量、低钳位单向 TVS 器件，适合在工业、消费与通信等场景中提供有效的瞬态过电压保护。其600W的冲击耐受力与宽温度范围使其在恶劣环境下也能保持可靠防护。购买与设计使用时，请结合具体应用场景核实漏电、钳位电压对系统的影响，并参照厂商数据手册进行详细选型与应用验证。
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