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Jingdao Microelectronics SMBJ10CA
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Electronic SMBJ10CA
- Type
- Jingdao Microelectronics
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic
- Electronic Component
- SMBJ10CA
- Electronic Component
- 1
- Package
- SMB
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.167g
- Electronic Component
- 1
- Cj- Capacitor
- 390pF
- Electronic Component
- BM0229945870
- Voltage
- 17V
- Current(Ir)
- 5uA
- Voltage(VBR)
- 12.3V
- 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.
SMBJ10CA AX — TVS 二极管产品概述
一、产品简介
SMBJ10CA AX 是晶导微电子出品的一款双向瞬态电压抑制器（TVS），采用SMB封装，专为抑制瞬态浪涌、雷击及开关干扰设计。主要基础参数：反向截止电压 Vrwm = 10V，击穿电压 Vbr ≈ 12.3V，钳位电压 Vc ≈ 17V（在指定脉冲条件下），峰值脉冲功率 Ppp = 600W（10/1000µs），峰值脉冲电流 Ipp = 35.3A（10/1000µs），结电容 Cj = 390pF，反向静态漏电流 Ir = 5µA（在 Vrwm 下）。
二、主要电气特性与工作机理
- 双向结构：对正负极性瞬态都有吸收能力，适用于交流或双向脉冲环境。
- 击穿与钳位：当瞬态电压超过约12.3V 时进入雪崩导通，从而将浪涌电流限制至对应的钳位电压约17V，保护下游器件不受过压损害。
- 能量吸收：在行业常用的10/1000µs脉冲波形下可承受高达600W 的能量冲击，适合处理长时间能量包的浪涌事件。
- 结电容影响：Cj≈390pF，属于中等偏高电容，对高频、差分高速信号会产生明显负载和失真，因此更适合电源轨与低速控制线的过压保护，而非高速数据链路。
三、典型应用场景
- 工业与消费类DC电源轨（10V左右电源保护）
- 电池管理、DC-DC 输入口、逆变器控制输入的浪涌抑制
- 通用电源输入、继电器及开关触发线的瞬态保护
注：若用于12V汽车系统，需评估工作电压裕量（Vrwm=10V），建议对持续工作电压与系统充电电压进行确认或选用额定Vrwm更高的型号。
四、封装与安装建议
- 封装：SMB，适合中功率自动贴装，散热及机械强度良好。
- PCB 布局：保护器件接地短且粗，浪涌路径尽量短，器件与被保护端并联放置，确保热阻低并便于散热。
- 工作与热管理：长时间重复脉冲或高能量环境下需考虑热循环与功率降额，保证可靠性。
- 焊接：按SMB常规回流焊工艺，避免过热导致封装应力或参数漂移。
五、选型提示与总结
- 若目标是对10V附近电源或低速控制线提供高能量浪涌保护，SMBJ10CA AX 是经济且耐用的选择。
- 需注意其较高结电容不适合高速数据信号；若系统存在持续高工作电压（如汽车充电体系），应评估Vrwm与系统电压的匹配或选取12V级别产品。
- 型号信息：SMBJ10CA AX，品牌：晶导微电子，封装：SMB。该器件在中低频电源防护场景中表现突出，结合良好PCB布局与散热设计可实现长期稳定的浪涌保护效果。
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