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SHIKUES SS54G Schottky Diode SS54G
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- SHIKUES SS54G
- Type
- SHIKUES
- Minimum package
- 5000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- SHIKUES
- Electronic Component
- SS54G
- Electronic Component
- 1
- Package
- SMA
- Electronic Component
- Schottky Diode
- Electronic Component
- 0.118g
- Electronic Component
- 1
- Electronic Component
- BM0228037959
- Current
- 5A
- Diode
- Electronic Component
- Current(Ir)
- 1mA@40V
- (Vf)
- 550mV@5A
- Electronic Component
- 55℃~+150℃
- Electronic Component
- Electronic Component
- Electronic Component
- 5000
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SS54G 肖特基二极管（SHIKUES 时科）产品概述
一、产品概述
SS54G 为 SHIKUES（时科）品牌的独立式肖特基整流二极管，采用 SMA 封装，面向中大电流低压降整流和保护场景。器件在 5A 直流载流下正向压降仅为 0.55V，具备较低的功率损耗与快速响应特性，适用于开关电源、整流桥、反并联保护与电源防反接等应用。
二、主要技术参数
- 二极管配置：独立式（单个芯片）
- 正向压降：Vf = 0.55V @ If = 5A
- 直流反向耐压：Vr = 40V（最大反向电压）
- 连续整流电流：If(AV) = 5A
- 反向漏电流：Ir = 1mA @ Vr = 40V（注意温度相关升高）
- 非重复峰值浪涌电流：Ifsm = 120A（冲击浪涌能力）
- 工作结温：-55℃ ~ +150℃
- 封装：SMA（适合自动贴装与手工焊接）
三、性能特点
- 低正向压降：在大电流工况下降低导通损耗，提高效率与散热裕量。
- 快速恢复/肖特基特性：无明显正向恢复峰值，适合高频整流。
- 良好的浪涌承受能力：120A 非重复峰值浪涌适用于启动冲击及短时过载情况。
- 宽温度范围：适应工业级温度变化，适合恶劣环境使用。
四、封装与热管理
SMA 封装体积小、热阻适中，便于 PCB 布局与散热设计。实际使用时需注意：
- 在持续 5A 电流下，正向功耗为 P≈Vf×If（约 2.75W），需通过加大铜箔面积或散热片降低结温。
- 采用足够的 PCB 铜箔（+/- 侧的散热铺铜）并考虑通孔与散热层，可显著改善热性能。
- 焊接温度按照封装推荐值执行，避免过热影响可靠性。
五、典型应用场景
- 开关电源整流与续流二极管（低压输出端）；
- 电源反向保护与负载隔离（OR-ing）；
- 汽车电子 12V/24V 系统（需评估瞬态）；
- 电池充放电路径、适配器、LED 驱动等需低压损线路。
六、选型与使用建议
- 若系统工作电压接近或可能超过 40V，应改选更高 Vr 的型号或增加瞬态抑制元件。
- 注意反向漏电流随温度急剧上升，设计中需考虑高温下的漏电容许范围。
- 长时间连续大电流工作建议留足安全裕度并做好热仿真，必要时选择更大封装或并联使用（注意分流均衡）。
七、可靠性与注意事项
- 典型肖特基在高温下漏电流和热失控风险需严加评估；在高温环境应适当降额使用。
- PCB 布局应避免热集中和高温工作点，保持良好散热路径与可靠焊接。
- 出于电气保护考虑，可在高速开关应用中配合 RC 抑制或 TVS 以防瞬态超压。
总结：SS54G（SHIKUES 时科）在 40V/5A 等级下以低正向压降与良好浪涌能力，为中低压、高效率整流与保护方案提供了经济且可靠的选择。选择与应用时重点关注热管理与高温漏电特性，以确保长期稳定运行。
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