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CJ SS320
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- CJ SS320
- Type
- CJ
- Minimum package
- 5000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- CJ
- Electronic Component
- SS320
- Electronic Component
- 1
- Package
- SMAG
- Electronic Component
- Schottky Diode
- Electronic Component
- 0.111g
- Electronic Component
- 1
- Electronic Component
- BM0229991207
- Current
- 3A
- Diode
- Electronic Component
- Current(Ir)
- 100uA@200V
- (Vf)
- 950mV@3A
- 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.
SS320 肖特基二极管 产品概述
一、产品简介
SS320 是来自 CJ（江苏长电/长晶）的一款独立式肖特基整流二极管，封装为 SMAG。器件设计用于中低压大电流整流场合，凭借肖特基结构具备较低的正向压降和快速恢复特性，适合开关电源和功率管理系统中的整流与续流应用。
二、主要特性
- 正向压降（Vf）：约 0.95 V @ 3 A，低损耗有助于提升效率并降低发热。
- 额定整流电流：3 A（连续）。
- 反向耐压（Vr）：200 V，适用于中高压整流场合。
- 反向漏电流（Ir）：典型 100 μA @ 200 V，注意在高温下漏电会显著上升。
- 非重复峰值浪涌电流（Ifsm）：70 A，能承受开机或短时冲击电流。
- 工作结温范围：-55 ℃ ~ +150 ℃，适应工业级温度环境。
三、电气与热特性说明
SS320 在 3 A 工作点上的 Vf 约为 0.95 V，比一般硅整流二极管的正向压降低，能减少导通损耗。但肖特基结构在高反向电压和高温条件下的漏电流较大，应在热设计与系统功率预算中考虑漏电带来的损耗与热应力。SMAG 封装可通过 PCB 铜厚及散热面改善结温。
四、封装与机械特性
- 封装：SMAG，独立式封装便于散热与替换。
- 建议 PCB 布局：在管脚对应位置加大铜箔面积并做散热开窗，缩短电流回路，减小寄生电感。浪涌承受时注意焊盘与过孔的热平衡设计。
五、典型应用场景
- 开关电源整流与同步整流辅助。
- DC-DC 转换器输出整流。
- 电机驱动续流二极管与反向保护。
- 车载电子、LED 驱动、太阳能逆变器等需要中高压耐受与低正向损耗的场合。
六、选型与使用建议
选择 SS320 时，请确认最大工作电流 3 A 与系统峰值浪涌不超过 Ifsm（70 A）规格；若工作环境温度偏高或反向电压长期接近 200 V，应评估漏电导致的功耗和热升。对效率要求极高的系统，可并联或选用更低 Vf 的肖特基/同步整流解决方案，但并联时需考虑电流均流与热分布。
七、注意事项与可靠性
- 高温或高 Vr 条件下反向漏电流上升明显，影响系统待机功耗和热稳定性。
- 焊接时按厂商建议的回流曲线操作，避免过热缩短寿命。
- 在高频切换应用中注意二极管的寄生电容与电感对 EMI 的影响，必要时配合吸收网络抑制尖峰。
如需获取完整数据手册（I-V 曲线、热阻、封装尺寸及焊接图），建议联系 CJ 官方或供应商索取，以便完成详细的电路设计与热仿真。
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