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ElecSuper SMAJ12A
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Elec Super SMAJ12A
- Type
- ELECSUPER
- Minimum package
- 5000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- ELECSUPER
- Electronic Component
- SMAJ12A
- Electronic Component
- 1
- Package
- DO-214AC(SMA)
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.1g
- Electronic Component
- 1
- Channel Count
- Electronic Component
- Electronic Component
- BM0234665823
- Operating Temperature
- 65℃~+150℃
- Voltage
- 19.9V
- Electronic Component
- IEC 61000-4-2
- Current(Ir)
- 1uA
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SMAJ12A 产品概述
一、产品简介
SMAJ12A 为单向硅瞬态电压抑制二极管（TVS），由 ElecSuper（静芯微）提供，封装为 DO-214AC（SMA）。器件专用于对瞬态过电压和静电放电（ESD）进行快速钳制保护，适配需要 IEC 61000-4-2 等级防护的接口与电源线。
二、主要参数
- 极性：单向（单极性保护，需按电路方向安装）
- 反向工作电压 Vrwm：12 V
- 击穿电压 Vbr：13.3 V
- 钳位电压 Vc（典型）：19.9 V
- 峰值脉冲电流 Ipp：20.1 A（10/1000 µs 或厂家指定测试脉形）
- 峰值脉冲功率 Ppp：400 W（标称能力）
- 反向漏电流 Ir：1 µA（在 Vrwm 条件下）
- 通道数：单路
- 工作温度：-65 ℃ 至 +150 ℃
- 防护等级：符合 IEC 61000-4-2
- 类型：TVS 二极管，未分类（通用瞬态抑制器）
三、性能特点
- 响应快速：对突发冲击和静电放电能在纳秒级响应并钳制电压峰值。
- 低漏电流：在典型工作电压下漏电流仅 1 µA，适合对静态功耗敏感的系统。
- 低钳位电压：19.9 V 钳位可有效限制后端器件承受的电压应力。
- 高能量吸收：单次脉冲峰值功率 400 W、峰值电流 20.1 A，能吸收较大瞬态能量。
- 宽温区可靠：-65 ～ +150 ℃ 工作温度，适应恶劣环境。
四、典型应用场景
- 电源线与直流母线的瞬态抑制与过压保护
- 串口、CAN、通信接口的静电与感性回路防护
- 工业控制、消费电子、网络设备和对 ESD 有严格要求的外部接口
五、封装与布板建议
- 封装：DO-214AC（SMA），便于自动贴装与熔接；良好的热散能力。
- PCB 布局建议：靠近受保护节点放置，缩短焊盘到器件引脚的走线，确保良好接地回路以提升能量消散能力。
- 焊接与热管理：遵循无铅回流工艺规范，避免过热影响封装可靠性。
六、使用注意事项
- 单向器件须按极性安装，反向工作时请勿超过 Vrwm。
- 峰值功耗为短脉冲规格下测得，连续或高重复率冲击需进行降额设计或并联/使用更高规格器件。
- 产品未明确声明汽车 AEC 认证，汽车应用请确认系统级与认证要求。
更多技术细节与实际测试波形请参考厂家数据手册或联系 ElecSuper（静芯微）技术支持。
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