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CBI RB521S-30 RB521S
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- CBI RB521S-30
- Type
- CBI
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- CBI
- Electronic Component
- RB521S-30
- Electronic Component
- 1
- Package
- SOD-523
- Electronic Component
- Schottky Diode
- Electronic Component
- 0.025g
- Electronic Component
- 1
- Electronic Component
- BM0229963304
- Current
- 200mA
- Diode
- Electronic Component
- Current(Ir)
- 30uA@10V
- (Vf)
- 500mV@200mA
- Electronic Component
- Electronic Component
- Electronic Component
- 3000
- Voltage Rating(Vr)
- 30V
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
RB521S-30 产品概述
一、产品简介
RB521S-30 是创基（CBI）推出的一款独立式肖特基二极管，采用超小型 SOD-523 封装，专为低压、低功耗场合设计。该器件正向压降低（Vf = 500 mV @ 200 mA）、额定直流整流电流为 200 mA，反向耐压 30 V，适用于便携设备电源保护与低压整流等场景。
二、主要技术参数
- 件型号：RB521S-30
- 品牌：CBI（创基）
- 封装：SOD-523（独立式）
- 正向压降：≈ 500 mV @ IF = 200 mA
- 直流整流电流：200 mA
- 直流反向耐压（Vr）：30 V
- 反向电流（Ir）：30 µA @ VR = 10 V
- 非重复峰值浪涌电流（Ifsm）：1 A
三、产品特性与优势
- 低正向压降：在 200 mA 工作点下约 0.5 V，可显著降低整流与开关损耗，提升系统效率。
- 小型封装：SOD-523 占板面积小，适合空间受限的移动设备与高密度 PCB 布局。
- 低漏电：10 V 时反向电流典型值 30 µA，有利于待机功耗优化。
- 合理的浪涌能力：1 A 峰值浪涌可应对短时冲击电流和通电瞬态。
四、典型应用场景
- 移动电源、便携式多媒体设备的电源整流与隔离。
- USB/Type-C 电源路径防反接与续流保护。
- 低压开关电源（SMPS）和DC-DC 转换器的输出整流/续流二极管（小电流级）。
- 电池管理与电源路径选择（OR-ing），以及低压快速切换电路。
- 高频整流与检波电路（得益于肖特基低恢复特性）。
五、封装与安装要点
SOD-523 为超小型表贴封装，焊盘尺寸与热阻受限。建议：
- 使用厂家推荐的 PCB 焊盘布局，保持热源附近短且宽的铜箔以利散热。
- 尽量缩短与电源轨的走线，减少寄生电阻和压降。
- 回流焊工艺需按焊料和回流曲线规范操作，避免过度热循环损伤器件。
六、使用建议与注意事项
- 关注电流与温度的并行影响：在高环境温度或长期 200 mA 工作时应进行电流热降额设计，避免超过结温极限（详见原厂数据手册）。
- 反向电压余量：设计时留有一定 Vr 余量，防止瞬态过压导致击穿。建议在有较大瞬态的环境下配合 TVS 或限压网络。
- ESD 与焊接：小封装易受机械应力与不当焊接影响，贴装与回流请严格控管；在操作与测试时遵守静电防护规范。
- 如需更高峰值浪涌或更高电流能力，请参考更大封装或并联方案，并验证热性能与电流分配。
七、选型与替代建议
RB521S-30 适合对空间、效率和静态漏电有较高要求的低压整流场合。如需更高耐压或更大电流，可考虑同类肖特基家族中 Vr 更高或封装更大的型号。选型时建议对照完整的厂商数据手册核对温度范围、功耗参数及封装图样，以确保电路长期可靠运行。
如需器件的详细电气特性曲线、热阻或 PCB 封装推荐图，请参阅 CBI（创基）官方数据手册或联系供应商获取原厂资料。
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