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KUU SS32
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- KUU SS32
- Type
- KUU
- Minimum package
- 2000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- KUU
- Electronic Component
- SS32
- Electronic Component
- 1
- Package
- SMA(DO-214AC)
- Electronic Component
- Schottky Diode
- Electronic Component
- 0.113g
- Electronic Component
- 1
- Electronic Component
- BM0258756614
- Current
- 3A
- Diode
- Electronic Component
- Current(Ir)
- 500uA@20V
- (Vf)
- 550mV@3A
- Electronic Component
- Electronic Component
- Electronic Component
- 2000
- Voltage Rating(Vr)
- 20V
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SS32 (KUU) — 3A / 20V SMA 肖特基二极管 概述
一、主要参数与电气性能
SS32（厂牌 KUU）为独立式肖特基整流二极管，典型电气参数如下：正向压降 Vf = 0.55V @ IF = 3A；直流反向耐压 VR = 20V；整流电流（平均）IF(AV) = 3A；反向漏电流 IR = 500μA @ VR = 20V。肖特基结构带来低正向压降与快速导通特性，适合要求低损耗的低压大电流整流场合。
二、封装与热管理
器件采用 SMA (DO-214AC) 表贴封装，体积小、焊接可靠。SMA 封装热阻相对较高，长期高电流下需要注意热量扩散与散热设计：建议在焊盘处增加铜厚与散热铜箔面积，并在必要时配合过孔导热至底层散热层，以降低结温并保证长期可靠性。
三、典型应用场景
- 开关电源二次整流、低压电源输出整流
- 车载电子的反向保护与电源整流（注意工作电压限于20V）
- 电池保护电路与电源 OR-ing（低压降可提高效率）
- 二极管钳位、自由轮二极管（高频开关下可显著降低损耗）
四、使用注意与 PCB 布局建议
- 由于反向漏电随温度急剧上升，需在高温环境下对 IR 进行留量设计或选用更高 Vr/低 Ir 的器件。
- 焊盘留足焊锡量并增加散热铜箔，若频繁通过大电流，建议在焊盘处打散热过孔。
- 引线及走线尽量短且截面积足够，以降低寄生电阻与热阻。
- 焊接时遵循厂家或行业通用回流温度曲线，避免超过材料应力极限。
五、与同类产品的比较与选型建议
与普通硅整流二极管相比，SS32 的优势在于较低的正向压降与更快开关速度，但其最高反向耐压仅为20V，不适用于高压场合；与同规格的肖特基产品相比，应关注 IR 在高温下的增大与封装散热能力。如果工作电压或温度更苛刻，考虑选用更高 Vr 或更低 Ir（如 SMB/SMC 封装）型号。
六、结论与采购建议
SS32 (KUU) 为面向低压大电流、追求高效率与低损耗的实用型肖特基整流二极管，适合开关电源、车载和电源保护等场景。选型时确认工作电压、结温与平均电流的匹配，并在 PCB 设计中做好散热与布局以保证器件长期可靠性。采购时注意批次与原厂资料，参考完整数据手册进行最终验证。
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