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CJ SS54F
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- CJ SS54F
- Type
- CJ
- Minimum package
- 3000
Technical parameters
- Electronic Component
- CJ
- Electronic Component
- SS54F
- Electronic Component
- 1
- Package
- SMAF
- Electronic Component
- Schottky Diode
- Electronic Component
- 0.062g
- Electronic Component
- 1
- Electronic Component
- BM0230031793
- Current
- 5A
- Diode
- 1
- Current(Ir)
- 500uA@40V
- (Vf)
- 700mV@5A
- Electronic Component
- 55℃~+125℃
- Electronic Component
- 3000
- Voltage Rating(Vr)
- 40V
- Surge Current (Ifsm)
- 150A
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SS54F（CJ/长晶）肖特基二极管 产品概述
一、产品简介
SS54F 是江苏长电（CJ/长晶）生产的一款肖特基整流二极管，封装为 SMAF。该器件面向中大电流整流和钳位场合，具有低正向压降、快速响应与较高浪涌能力的特点，适合开关电源、整流桥、续流二极管及保护电路等应用。
二、主要电气参数
- 正向压降 (Vf)：700 mV @ If = 5 A
- 额定整流电流 (If)：5 A（直流）
- 直流反向耐压 (Vr)：40 V
- 反向电流 (Ir)：500 μA @ Vr = 40 V
- 非重复峰值浪涌电流 (Ifsm)：150 A
- 工作结温范围：-55 ℃ ~ +125 ℃
三、特点与优势
- 低正向压降：Vf≈0.7 V（5 A）有助于降低整流损耗与发热，提升整机效率。
- 高浪涌承受能力：Ifsm 150 A，适合承受启动或短时浪涌电流。
- 宽温度范围：工作结温-55～125 ℃，能适应工业级温度环境。
- 小封装、易于电路板安装：SMAF 封装便于自动贴装和波峰/回流焊工艺。
四、应用场景
- 开关电源输出整流与续流路径
- DC-DC 转换器、同步整流替代或保护二极管
- 车载电子与工业电源（注意 Vr=40 V 限制）
- 反向保护、隔离与稳压回路中的快速整流
五、选型与使用建议
- 如果工作电压接近或超过 40 V，应选用更高 Vr 的型号；高温下 Ir 会显著上升，应考虑泄露对电路的影响。
- 连续散热：Given If=5 A 为额定值，实际应用中需做热管理，PCB 应加宽散热铜箔并优化焊盘热阻。
- 浪涌考虑：150 A 的 Ifsm 指短时峰值能力，不可作为反复承受的长期指标。
- 布局建议：减小整流回路环路面积，靠近开关节点放置，搭配足够的旁路/滤波电容以降低纹波与应力。
六、可靠性与存储
避免长时间高温高压反向偏置以减小反向漏电。推荐按厂家建议的焊接温度曲线回流焊；储存时防潮包装防止焊接缺陷。
以上为 SS54F 的关键参数与选用建议。若需热阻、封装尺寸或更详细的电流-温度曲线，请提供是否需要我为您查找并对比同类型号以便做更具体的设计选型。
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