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CBI RB551V-30 RB551V
Configuration
1 options
Configuration
24+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- CBI RB551V-30
- Type
- CBI
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- CBI
- Electronic Component
- RB551V-30
- Electronic Component
- 1
- Package
- SOD-323
- Electronic Component
- Schottky Diode
- Electronic Component
- 0.026g
- Electronic Component
- 1
- Electronic Component
- BM0228586164
- Current
- 500mA
- Diode
- Electronic Component
- Current(Ir)
- 100uA@20V
- (Vf)
- 470mV@500mA
- 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.
RB551V-30 产品概述
一、产品简介
RB551V-30 是创基（CBI）推出的一款独立式肖特基整流二极管，采用 SOD-323 小封装。针对低压快速整流与保护场合优化，具有较低正向压降和中等电流能力，适合便携式与消费类电子的电源路径与保护电路。
二、主要电气参数
- 型号：RB551V-30
- 封装：SOD-323（独立式）
- 正向压降：Vf = 470 mV @ 500 mA
- 连续整流电流：500 mA
- 非重复峰值浪涌电流：Ifsm = 2 A（一次性浪涌）
- 直流反向耐压：Vr = 30 V
- 反向电流：Ir = 100 µA @ 20 V
- 品牌：CBI（创基）
三、主要特性与优势
- 低压降：470 mV 在 500 mA 条件下的正向压降，有助于降低功耗和发热，尤其在低压供电（5 V 及以下）系统中提高效率。
- 小体积封装：SOD-323 便于高密度 PCB 布局，适合空间受限的移动设备及小型模块。
- 中等浪涌能力：2 A 的非重复峰值浪涌足以应对上电或瞬态冲击，但不适合长期承受高能量浪涌的场合。
- 30 V 反向耐压：适用于 USB、移动电源、LCD 背光等低压应用，但不适合高压环境。
四、典型应用场景
- 低压整流与二极管 ORing（电源取舍）
- 反向极性保护与防回流
- 开关电源输出整流（小功率）
- 电池管理与充放电路径保护（小电流场合）
- 信号线路保护与钳位
五、设计与布局注意事项
- 热管理：SOD-323 封装散热受限，长期连续电流接近额定 500 mA 时应评估结温。建议在 PCB 上增加铜箔散热、短走线并避免与热源紧邻。
- 反向漏电：100 µA@20 V 为室温条件下典型值，温度升高时漏电会显著增加，温度敏感电路请考虑影响或选用更低漏电型号。
- 浪涌保护：Ifsm 为非重复峰值，应避免重复或长时间高能脉冲，必要时在输入端增加瞬态抑制器或限流元件。
- 电压裕量：器件 Vr=30 V，请确保工作环境和过压事件不会超过该限制，若存在高压瞬态需外加 TVS 或更高 Vr 器件。
六、可靠性与采购建议
RB551V-30 适合体积受限、对效率有一定要求的低压应用。选型时应结合工作环境温度、最大连续电流与可能的浪涌能量进行热与电应力验证。采购时可向 CBI（创基）索取器件的可靠性报告与封装数据、及卷盘包装信息以便生产线贴装。若项目对反向漏电或耐浪涌有更高要求，可比较更高 Vr 或更低 Ir 的肖特基型号以做权衡。
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