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GOODWORK SMAJ15A
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- GOODWORK SMAJ15A
- Type
- GOODWORK
- Minimum package
- 2000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- GOODWORK
- Electronic Component
- SMAJ15A
- Electronic Component
- 1
- Package
- SMA(DO-214AC)
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.087g
- Electronic Component
- 1
- Electronic Component
- BM0229305766
- Operating Temperature
- 55℃~+150℃
- Voltage
- 24.4V
- Current(Ir)
- 5uA
- Voltage(VBR)
- 16.7V
- 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.
SMAJ15A（GOODWORK）产品概述
一、产品简介
SMAJ15A 是 GOODWORK（固得沃克）推出的一款单向表面贴装瞬态电压抑制器（TVS），封装为 SMA (DO-214AC)。该器件专为抑制瞬态浪涌与静电放电（ESD）设计，具有快速响应、低钳位电压和高峰值吸收能力，适用于对 15V 及以下直流电源线和信号线的保护。
二、主要电气参数
- 反向工作电压（Vrwm）：15V
- 击穿电压（Vbr）：16.7V（典型）
- 钳位电压（Vc）: 24.4V（在指定测试电流条件下）
- 峰值脉冲功率（Ppp）：400W（制造商测试条件下）
- 峰值脉冲电流（Ipp）：16.4A
- 反向漏电流（Ir）：5µA（在 Vrwm 条件下）
- 极性：单向（适合直流保护）
- 工作结温：-55℃ ~ +150℃（Tj）
三、性能特点与优势
- 单向结构在正常工作时处于反向偏置，能对正向瞬态快速钳制，适合直流供电线保护。
- 低 Vrwm 与较低的钳位电压组合，能在浪涌时将电压限制在对系统较安全的范围内，降低后端元件应力。
- 400W 峰值吸收能力与 16.4A 峰值电流表明对常见的浪涌/脉冲事件有良好的缓冲能力。
- 宽温度范围与小型 SMA 封装便于在空间受限且环境要求严格的场合使用。
四、典型应用场景
适用于电源输入保护、通信接口、工业控制、消费电子及车载电子等需要对 15V 等级电源/信号线进行静电和浪涌防护的场合。特别适合靠近外部连接器、外部电源输入处的过压保护。
五、PCB 布局与使用建议
- 尽量将 TVS 尽可能靠近需要保护的连接器或输入端，缩短受保护回路的引线长度以降低寄生电感。
- 提供良好的散热路径：在焊盘下和周围使用适量的铜箔，有助于在脉冲事件中分散热量并提高可靠性。
- 单向器件安装方向应确保在正常电压下为反向偏置；安装前确认极性标记（通常封装一端为阴极）。
- 在高频或高速信号线上使用时需注意寄生电容和电感对信号完整性的影响，必要时进行仿真验证。
六、可靠性与注意事项
- 留意器件在大能量脉冲下的能量吸收极限，连续或重复的大幅浪涌可能需要并联或采用更高能量等级的保护器件。
- 高温环境下应参考制造商的结温－功率降额曲线进行设计，避免在极限温度下长期满载工作。
- 储存与回流焊温度请遵循 GOODWORK 的封装与焊接说明，避免湿热导致的封装损伤。
七、总结
SMAJ15A（SMA 封装）凭借 15V 工作电压、16.7V 击穿电压、24.4V 钳位以及 400W 峰值吸收能力，提供了针对 15V 级别直流系统的高效浪涌与静电保护方案。其单向特性、宽温范围以及标准 SMD 封装，使其在工业、通信和电源保护等领域具有良好的适用性。选型时应结合实际浪涌幅值、能量及电路热设计进行综合评估。
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