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DOWO 5.0SMDJ28CA
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- DOWO 5.0SMDJ28CA
- Type
- DOWO
- Minimum package
- 3000 编带
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- DOWO
- Electronic Component
- 5.0SMDJ28CA
- Electronic Component
- 1
- Package
- SMC
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.378g
- Electronic Component
- 1
- Electronic Component
- BM0264342809
- Operating Temperature
- 55℃~+150℃
- Voltage
- 45.4V
- Current(Ir)
- 5uA
- Voltage(VBR)
- 31.1V
- 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.
SMDJ28CA 产品概述
一、概述
SMDJ28CA 是 DOWO（东沃）推出的一款高能量双向 TVS（瞬态电压抑制）二极管，封装为 SMC（行业常用 DO-214AB）。采用玻璃钝化芯片工艺，针对大功率脉冲浪涌保护而设计，提供快速响应与可靠钳位性能，适用于需要高能量吸收能力的电源与信号保护场景。
二、主要电气特性
- 极性：双向（适合交流或双向瞬态抑制）
- 反向截止电压 Vrwm：28 V
- 击穿电压 VBR：31.1 V
- 钳位电压 Vc（典型）：45.4 V
- 峰值脉冲电流 Ipp（10/1000 μs）：110.13 A
- 峰值脉冲功率 Ppp（10/1000 μs, 重复率/占空比 0.01%）：5000 W
- 反向泄漏电流 Ir：5 μA（常温）
- 工作温度范围：-55 ℃ 至 +150 ℃
- RoHS 符合性：通过
以上参数基于标准 10/1000 μs 浪涌波形规格，适用于雷击、开关瞬变等长脉冲能量事件的抑制。
三、关键特点
- 玻璃钝化芯片，器件可靠性高、热稳定性能好；
- 极快响应时间，可在瞬态出现时迅速钳位，保护下游元件；
- 优秀的钳位能力（Vc 约 45.4 V），在高能量冲击下仍能保护系统电压在可接受范围内；
- 低泄漏电流，有利于不增加系统静态功耗；
- 双向结构，适合交流或极性不确定的应用场景；
- 高能量吸收（5 kW）适合工业级、通信和电力系统的浪涌防护。
四、典型应用
- 电源输入端浪涌保护（开关电源、UPS、逆变器等）；
- 通信与基站设备的线路保护；
- 太阳能逆变器、光伏汇流箱等的雷电浪涌防护；
- 工业控制与自动化设备，PLC、伺服驱动器前端保护；
- 充电桩、直流配电系统中的过电压抑制（注意确认系统规格）。
五、选型与使用建议
- 在选型时，确认 Vrwm 高于系统最大静态电压但低于被保护器件可承受的最大电压；
- 核实钳位电压是否足以保护下游元件（Vc 约 45.4 V 为典型值）；
- 对于高频或连续脉冲场合，注意 Ppp 和重复率限制，避免长期过载导致器件损坏；
- 封装为 SMC，推荐采用标准 SMC 焊盘布局并保证良好散热路径（必要时扩展铜箔或加散热垫）；
- 储存、贴装时防静电和潮湿处理（遵循元件的包装与回流焊工艺要求）。
SMDJ28CA 以其高能量吸收能力、快速响应和稳定的钳位性能，为需要可靠瞬态保护的系统提供了稳健的解决方案。若需进一步的封装尺寸图、典型浪涌试验曲线或应用参考电路，可联系供应商获取完整数据手册。
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