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KUU DSS34
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- KUU DSS34
- Type
- KUU
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- KUU
- Electronic Component
- DSS34
- Electronic Component
- 1
- Package
- SOD-123FL
- Electronic Component
- Schottky Diode
- Electronic Component
- 0.037g
- Electronic Component
- 1
- Electronic Component
- BM0258756618
- Current
- 3A
- Diode
- Electronic Component
- Current(Ir)
- 500uA@40V
- (Vf)
- 550mV@3A
- Electronic Component
- Electronic Component
- Electronic Component
- 3000
- Voltage Rating(Vr)
- 40V
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
DSS34 产品概述
一、主要特性
DSS34 是 KUU 品牌的一款独立式肖特基二极管，针对中等电流开关和整流应用设计。其主要特性包括低正向压降、高开关速度和小体积封装，适合要求效率与空间兼顾的电子产品。
二、电气参数概览
- 二极管配置：独立式（单个器件）
- 正向压降（Vf）：0.55 V @ IF = 3 A
- 最大直流反向耐压（Vr）：40 V
- 最大整流电流（IF）：3 A
- 反向漏电流（Ir）：500 μA @ VR = 40 V
这些参数表明 DSS34 在 3A 级别工作时具有较低的导通损耗，但在高温或高反向电压下漏电流会明显增大，应在热设计中考虑。
三、封装与机械特性
DSS34 采用 SOD-123FL 表面贴装封装，体积小、引脚短，适合自动贴装和高密度电路板。该封装具有较好的热阻特性，但相比大功率封装仍需依赖 PCB 铜箔扩散热量。
四、典型应用场景
- 开关电源中的整流二极管（次级整流）
- DC-DC 转换器的自由轮回二极管
- 反向极性保护与防倒灌电路
- 车载电子、消费电子和通信设备中对效率和体积有要求的电源部分
五、使用建议与注意事项
- PCB 布局：为降低结温并提高电流承载能力，应尽量加大二极管焊盘铜箔，必要时在焊盘下增加过孔连接至母板内层散热。引脚短且走线直接，避免不必要的回路电感。
- 温度影响：肖特基二极管在温度升高时漏电流显著增加，需评估工作温度下的反向漏电与热失控风险。
- 保护与可靠性：在高浪涌或反复大电流环境下建议配合熔断器或限流措施，必要时在开关节点并联 RC 吸收网络以抑制瞬态过压。
- 存储与焊接：遵循无铅回流温度曲线与防潮焊接规范，避免长时间暴露在潮湿环境中。
综上，DSS34（KUU，SOD-123FL）以其 0.55V@3A 的低正向压降和 40V 的耐压能力，适合中小功率电源整流与保护用途。在电路热管理和高温漏电控制得当的前提下，可为产品带来能效与体积优势。
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