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DOWO 5.0SMDJ58A
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- DOWO 5.0SMDJ58A
- Type
- DOWO
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- DOWO
- Electronic Component
- 5.0SMDJ58A
- Electronic Component
- 1
- Package
- SMC(DO-214AB)
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.042g
- Electronic Component
- 1
- Electronic Component
- BM0264254678
- Voltage
- 93.6V
- Current(Ir)
- 5uA
- Voltage(VBR)
- 64.4V
- Electronic Component
- Electronic Component
- Electronic Component
- 3000
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
5.0SMDJ58A 产品概述
一、产品简介
5.0SMDJ58A 是 DOWO（东沃）推出的一款高能量瞬态抑制二极管（TVS），采用玻璃钝化芯片工艺，封装为 SMC（DO-214AB）。本型号为单向结构，针对瞬态浪涌与电气过压提供高速、可靠的钳位保护，特别适合需要大能量冲击承受能力的工业与通信场合。
二、主要特点
- 峰值脉冲功率能力：5 kW（波形 10/1000 μs，重复率/占空比 0.01%）
- 峰值脉冲电流 Ipp：53.4 A（对应 10/1000 μs）
- 钳位电压 Vc（典型）：93.6 V
- 反向截止电压 Vrwm：58 V；击穿电压 VBR：64.4 V
- 反向漏电流 Ir：最大 5 μA（在 Vrwm 条件下）
- 玻璃钝化芯片、低泄漏、响应极快、RoHS 合规
- 提供单向与双向单元（本型号为单向）
三、电气参数要点
该器件在典型 10/1000 μs 浪涌条件下能吸收高能量，钳位电压保持在 93.6 V 附近，可有效限制瞬态过电压对下游元件的冲击。Vrwm=58 V 使其适配 48 V 类系统（如工业总线、通信供电等）作为一级或二级防护器件。低至 5 μA 的反向漏电有助于降低静态功耗与误触发风险。
四、典型应用场景
- 通信基站、交换设备的供电线路浪涌保护（48 V 系统）
- 电源输入端、开关电源和UPS的过压保护
- 工业控制、PLC、运动控制器的接口防护
- 以太网供电（PoE）设备与配线架的浪涌防护
- 汽车电子（经评估后）与户外设备的瞬态防护
五、封装与可靠性
SMC（DO-214AB）封装兼顾散热与板上可焊性，适合吸收大能量脉冲时的热耗散。玻璃钝化芯片提高了击穿稳定性与长期可靠性，RoHS 合规保证了环保与生产兼容性。建议在 PCB 设计中采用短回路、足够的铜面积与热过孔以提升散热与浪涌承受能力。
六、选型建议与注意事项
- 确认系统最大静态电压低于 Vrwm（58 V）并留有裕量；若系统有高频脉动需考虑额外裕度。
- 若存在双向浪涌（正负极性对称），应选用相应的双向型号；本型号为单向。
- 对于重复浪涌或长期电网脉冲，参考厂方能量循环与热重复能力，必要时采用级联保护（一级吸能、二级精密钳位）。
- PCB 布局：保护器件靠近被保护端口、短而粗的走线、适当散热铜皮与焊盘设计。
综上，5.0SMDJ58A 以其 5 kW 的高能量吸收能力、低泄漏与快速响应，适用于对 58 V 级别电压系统的高可靠瞬态保护，是工业与通信系统中常用的高能量 TVS 选择。
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