Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
DOWO 1.5KE51CA
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- DOWO 1.5KE51CA
- Type
- DOWO
- Minimum package
- 1250 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- DOWO
- Electronic Component
- 1.5KE51CA
- Electronic Component
- 1
- Package
- DO-201
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.969g
- Electronic Component
- 1
- Electronic Component
- BM0264866276
- Voltage
- 70.1V
- Current(Ir)
- 1uA
- Voltage(VBR)
- 48.45V
- Electronic Component
- Electronic Component
- Electronic Component
- 1250
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
1.5KE51CA 产品概述
一、产品简介
1.5KE51CA 是一款双向瞬态电压抑制器（TVS），由 DOWO（东沃）提供，采用玻璃钝化芯片工艺，封装为 DO-201。该器件设计用于在瞬态过压事件中迅速钳制电压，保护敏感电子元件与电路免受雷击、电源浪涌和开关突变等冲击。器件符合 RoHS 要求，适合工业级及通用保护应用。
二、主要电气参数
- 极性：双向
- 反向截止电压（Vrwm）：43.6 V
- 击穿电压（VBR）：48.45 V
- 钳位电压（VC，峰值）：70.1 V
- 峰值脉冲电流（Ipp）：21.4 A
- 峰值脉冲功率（Ppp）：1500 W（波形 10/1000 μs，重复率/占空比 0.01%）
- 反向电流（Ir）：1 μA
三、核心特性
- 1500 W 峰值脉冲功率能力（10/1000 μs 波形），对一次性或周期性大能量浪涌具备良好承受能力。
- 极快响应时间，可在瞬态上升期间迅速导通，限制电压幅度，保护下游器件。
- 低漏电流（Ir = 1 μA），在正常工况下对电路几乎无额外耗损。
- 玻璃钝化芯片工艺，提高稳定性与长期可靠性。
- 提供单向与双向版本，双向型号适用于交流或可能发生极性反转的场合。
- DO-201 大封装，有利于散热和耐脉冲能力的实现。
四、适用场景
- 工业电源与配电系统的浪涌保护器（SPD）
- 通信接口、数据线防护（RJ45、串口等）
- 逆变器、直流母线保护与配件防护
- 电机驱动及驱动柜中的瞬态抑制
- 各类具有高能量脉冲风险的电子设备前端保护
五、封装与可靠性说明
DO-201 封装提供较大体积的热容量和更高的脉冲能量承受能力，适合需要频繁或高能量浪涌缓冲的场合。玻璃钝化芯片提高了器件在高湿、高温及长期工作环境下的稳定性。符合 RoHS，有利于满足环保与合规要求。
六、选型与使用建议
- 在选型时确认系统最大工作电压与 Vrwm 的匹配，避免在正常工作下频繁触发器件动作。
- 考虑到峰值钳位电压约为 70.1 V，需评估被保护元件对该电压的承受能力。
- 注意散热与安装环境，长时间或重复高能量冲击需保证良好散热以延长寿命。
- 推荐与合适的熔断器或限流元件配合使用，以应对极端故障情形。
如需器件的完整参数表、温度特性或可靠性试验数据，可提供具体应用环境以便进一步匹配与建议。
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