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FUXINSEMI SS315A
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- FUXINSEMI SS315A
- Type
- FUXINSEMI
- Minimum package
- 5000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- FUXINSEMI
- Electronic Component
- SS315A
- Electronic Component
- 1
- Package
- SMA(DO-214AC)
- Electronic Component
- Schottky Diode
- Electronic Component
- 0.094g
- Electronic Component
- 1
- Electronic Component
- BM0264480212
- Current
- 3A
- Diode
- Electronic Component
- (Vf)
- 950mV@3A
- Electronic Component
- 55℃~+150℃
- Electronic Component
- Electronic Component
- Electronic Component
- 5000
- Voltage Rating(Vr)
- 150V
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SS315A 产品概述
一、产品简介
SS315A 是 FUXINSEMI（富芯森美）推出的一款独立式肖特基整流二极管，封装为 SMA（DO-214AC）。其典型正向压降为 0.95V（在 3A 条件下），直流反向耐压可达 150V，持续整流电流 3A，工作结温范围为 -55℃ 至 +150℃。该器件针对开关电源、整流及反向保护等场景进行了性能优化，兼具低正向压降与较高电压耐受能力。
二、主要特点
- 低正向压降：Vf≈0.95V@3A，有利于降低整流损耗、提升效率。
- 高耐压：150V 的反向耐压适用于中等电压输出的电源拓扑。
- 良好热稳定性：结温工作范围宽，适合工业级温度环境。
- 标准封装：SMA/DO-214AC，便于手工焊接及自动贴装，机械强度和散热性良好。
三、典型应用
- 开关电源（快恢复整流、输出整流）
- DC-DC 转换器及电源模块
- 反向极性保护、续流二极管（freewheeling）
- 太阳能逆变器、汽车电子（需注意工作温度和浪涌）
- 通信设备与工业控制电源
四、设计与使用建议
- 散热与布局：虽为独立封装，但在高电流场合需保证良好散热。建议引脚附近使用较大铜箔面积并配合通孔散热到内层或底铜，以降低结到环境热阻。走线尽量短、增大宽度以降低电阻与寄生感性。
- 电流与温度折扣：连续 3A 为常规整流电流，实际使用时应按电路工作周期、脉冲特性和环境温度做适当降额。高温会显著增加反向漏电流，应在热设计中预留余量。
- 旁路与滤波：在快速开关场合，建议近端并联适当的陶瓷/钽电容以抑制尖峰电压和振铃，保护器件免受瞬态过压。
- 焊接与可靠性：遵循 PCB 及封装的回流焊工艺规范；若采用手工焊接，注意不要过度加热引脚以免损伤封装。储存与装配时注意防潮和避免机械应力。
五、性能注意事项
肖特基二极管的反向漏电随温度非线性增长，长期在高温高压下工作会增加损耗与热耗散风险；同时肖特基正向压降随电流增大而上升，需在数值上留有裕量。对浪涌电流和瞬态电压要求严格的场合，应增加限流或浪涌吸收措施。
六、选型提示
在替代或比较时，可关注同类 3A/150V 级别肖特基的 Vf、反向漏电流、封装热阻和可靠性规范。若系统更重视极低正向损耗，可选择 Vf 更低型号；若更关注高温下的漏电控制，可选漏电较小或具有更好热特性的器件。
总结：SS315A 以 0.95V@3A 的低压降与 150V 的耐压能力，为中低功率整流和保护应用提供了平衡的性能；合理的热设计与电路保护将显著提升其在实际系统中的稳定性与寿命。
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