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FOSAN SS24B
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- FOSAN SS24B
- Type
- FOSAN
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- FOSAN
- Electronic Component
- SS24B
- Electronic Component
- 1
- Package
- SMB
- Electronic Component
- Schottky Diode
- Electronic Component
- 0.188g
- Electronic Component
- 1
- Electronic Component
- BM0264886269
- Current
- 2A
- Diode
- 1
- Current(Ir)
- 100uA@40V
- (Vf)
- 550mV@2A
- 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.
SS24B 肖特基整流二极管（FOSAN 富信，SMB/DO-214AA）产品概述
一、产品简介
SS24B 是 FOSAN（富信）提供的一款独立式肖特基整流二极管，封装为 SMB（DO-214AA），面向需要低正向压降与高速切换的整流与保护应用。该器件标称整流电流为 2A，适合中小功率电源、电源管理及保护电路使用。
二、主要电气参数
- 二极管配置：1 个独立式
- 正向压降（Vf）：0.55 V @ If = 2 A
- 直流反向耐压（Vr）：40 V
- 额定整流电流：2 A（连续）
- 反向泄漏电流（Ir）：100 μA @ Vr = 40 V（在室温下）
- 非重复峰值浪涌电流（Ifsm）：50 A（单次脉冲）
这些参数表明 SS24B 在中等电流工作点具有较低的导通损耗，同时能承受较短时高幅度冲击电流，但反向耐压限制在 40V 以内，需按系统电压等级选型。
三、主要特性与优势
- 低正向压降：0.55 V @ 2 A，降低整流损耗与发热，有利于提高系统效率。
- 肖特基特性：开通快、反向恢复时间极短，适合开关电源和高频整流场合。
- 突发电流能力强：50 A 的峰值浪涌能力可以应对开机或短时冲击电流。
- SMB 封装（DO-214AA）：适合表面贴装工艺，便于自动化贴装与良好散热面设计。
四、典型应用场景
- 开关电源输出整流及续流二极管（DC-DC、AC-DC 转换器）
- 反向保护、续流保护、输入整流与极性保护电路
- 电池充放电管理、备用电源切换
- 汽车电子（在不超过 40 V 的供电系统中）与工业控制设备的中低压整流
五、使用注意与热管理建议
- 持续电流能力受环境温度与 PCB 散热影响，实际允许电流应根据器件结温与 PCB 铜箔面积做降额设计。
- 在 If = 2 A 时，按 Vf = 0.55 V 计算功耗约为 1.1 W，需要通过增大铜箔面积或加散热片来控制结温。
- 反向泄漏随温度上升显著增大，若工作在高温环境或长期反向偏压下，应评估漏电对系统的影响。
- 峰值浪涌（Ifsm）为非重复脉冲值，不能作为长期重复冲击的依据。若电路存在频繁浪涌，应选择更高浪涌能力的器件或采用限流措施。
- DO-214AA（SMB） 封装适合回流焊接，焊接工艺应遵循厂商回流温度曲线以保证焊点与器件可靠性。
六、可靠性与选型建议
在选用 SS24B 前，建议对工作电压余量、最大结温与长期平均功耗进行评估。若系统电压接近或超过 40 V，或存在较高反向电压应力，应选择更高 Vr 的型号。对热敏感或要求更低反向漏电的场合，可比较其他厂商或更高规格的肖特基器件。
如需进一步数据（完整的温度特性、封装机械图与回流曲线），请参考 FOSAN 提供的完整数据手册或向供应商索取样品与测试报告。
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