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DOWO SS310A
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- DOWO SS310A
- Type
- DOWO
- Minimum package
- 5000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- DOWO
- Electronic Component
- SS310A
- Electronic Component
- 1
- Package
- SMA
- Electronic Component
- Schottky Diode
- Electronic Component
- 0.141g
- Electronic Component
- 1
- Electronic Component
- BM0264801976
- Current
- 3A
- Diode
- 1
- Current(Ir)
- 100uA
- (Vf)
- 550mV@3A
- Electronic Component
- 55℃~+175℃
- Electronic Component
- Electronic Component
- Electronic Component
- 5000
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SS310A 产品概述
一、产品简介
SS310A 是 DOWO（东沃）推出的一款高可靠性整流二极管，采用 SMA 低外形封装，面向中功率整流与过压保护应用。该器件具备低正向压降、较小的反向漏电和较高的浪涌能力，适用于空间受限且要求自动贴装的电路板设计。
二、主要规格参数
- 二极管数量：1个独立式
- 正向压降（Vf）：0.55 V @ 3 A
- 直流反向耐压（Vr）：100 V
- 额定整流电流：3 A
- 反向电流（Ir）：100 μA
- 非重复峰值浪涌电流（Ifsm）：70 A
- 工作结温范围：-55 ℃ ~ +175 ℃
- 封装：SMA
- 标准与环保：符合 RoHS，无卤材料
三、封装与机械特性
SS310A 采用 SMA 低外形封装，适合自动贴装（SMT）工艺，利于高速贴装与回流焊流程。器件带有保护环设计，有助于提高在过压或瞬态冲击时的可靠性，同时便于终检与包装处理。SMA 封装也便于在有限空间内实现较好的散热布局。
四、电气与热性能要点
- 低正向压降（0.55 V @ 3 A）能够减少整流功耗，提高电源转换效率和整体热稳定性。
- 100 μA 的反向电流在中等温度下表现良好，但在高温或接近 Vr 时应考虑反向漏电带来的功耗与热量累积。
- 70 A 的非重复峰值浪涌电流使其能承受短时输入浪涌或启动冲击，适用于含电感负载或变压器整流的场合。
- 工作结温覆盖 -55 ℃ 至 +175 ℃，满足工业级及高温环境要求，但为保证长期可靠性，仍建议在高温下采取适当散热与降额策略。
五、典型应用场景
- 开关电源（AC-DC / DC-DC）输入整流与自由轮整流
- 汽车电子低压整流（在符合温度与振动条件下）
- 电池充放电与电源管理模块
- 过压/瞬态保护电路中的能量吸收与整流
- 各类消费电子、工业控制设备中需要低损耗整流的场合
六、选型与电路设计建议
- 热设计：尽量在 PCB 上为器件留出较大铜箔和热过孔，以降低结温；在高电流工况下依据 Vf 与实际电流计算功耗并留有安全余量。
- 浪涌能力：70 A 为非重复峰值，应避免频繁出现接近该值的冲击；对有重复冲击的环境应选用更高 Ifsm 或并联方案并做好热仿真。
- 反向漏电：在高温环境或对待机漏电敏感的电路中，应评估 Ir 对静态功耗的影响，必要时选择漏电更低的器件或增加旁路措施。
- 自动贴装：支持常规回流焊温度曲线，但需遵循厂商提供的焊接工艺规范以免影响器件可靠性。
- 包装与检验：SMA 便于自动化生产，进料与存储时注意防潮与防静电保护。
七、总结
SS310A 以其低正向压降、100 V 耐压、3 A 连续整流能力与高达 70 A 的峰值浪涌能力，适合要求高效率、有限空间及自动贴装的中功率整流与保护应用。良好的工作温度范围和 RoHS 无卤特性，进一步满足工业与消费电子的通用需求。在设计中应重视热管理与漏电评估，以确保长期稳定运行。
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