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DOWO SP1545L-C SP1545L
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- DOWO SP1545L-C
- Type
- DOWO
- Minimum package
- 5000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- DOWO
- Electronic Component
- SP1545L-C
- Electronic Component
- 1
- Package
- TO-277B
- Electronic Component
- Schottky Diode
- Electronic Component
- 0.184g
- Electronic Component
- 1
- Electronic Component
- BM0264254687
- Current
- 15A
- Diode
- 1
- Current(Ir)
- 150uA@45V
- (Vf)
- 520mV
- 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.
SP1545L-C 产品概述
一、产品简介
SP1545L-C 是 DOWO（东沃）推出的一款高电流肖特基整流二极管，封装为 TO-277B。该器件以低正向压降和较小的反向恢复特性著称，适用于开关电源与整流应用，能在紧凑方案中提供高效的功率传输与热可靠性。
二、主要电气参数
- 二极管类型：独立式肖特基二极管（单只）
- 正向压降（Vf）：约 520 mV（典型值，测试条件请参考详细数据表）
- 直流反向耐压（Vr）：45 V
- 整流电流（Io/IF）：15 A（连续）
- 反向电流（Ir）：150 μA @ 45 V（室温或标注测试温度）
- 非重复峰值浪涌电流（Ifsm）：300 A（单次冲击能力）
- 工作结温范围：-55 ℃ ~ +150 ℃
三、热特性与可靠性
SP1545L-C 的工作结温范围宽，适应工业级温度环境。肖特基二极管的反向漏电流随温度升高显著增加，设计时需考虑环境温升与结温控制。TO-277B 封装便于与散热器或大面积铜箔直接耦合，以降低结到环境热阻并保证长期可靠性。建议在高功率工况下进行适当降额和散热设计。
四、典型应用场景
- 开关电源（SMPS）输出整流
- 同步整流替代件或回收二极管
- DC-DC 转换器、降压（buck）和升压（boost）电路
- 电池充电与电源管理线路
- 逆变器、汽车电子与工业电源中的快速整流与钳位保护
五、封装与机械特性
- 封装类型：TO-277B（适合机箱安装或与散热片螺栓固定）
- 尺寸与引脚布局请参照制造商机械图纸，便于 PCB 与散热件设计。
- 封装便于在高电流通路中实现低压降与良好热传导。
六、设计与使用建议
- 低正向压降有助于提升效率，但在高温下反向漏流增加，须留足热裕量。
- 布局建议：缩短高电流回路走线，增大铜箔面积并采用多颗焊盘/散热孔以降低接触热阻。
- 浪涌保护：Ifsm 虽可承受短时浪涌，长期或重复浪涌应通过限流/熔断器等保护电路处理。
- 若用于高频开关场合，注意与寄生参数与电容有关的电磁兼容（EMC）问题。
七、对比与选型建议
与普通硅整流二极管相比，肖特基二极管具有更低的正向压降与极快的恢复特性，适合效率与开关性能要求高的电源设计。但在高压或高温环境下，硅二极管的漏电流与耐压表现可能更优。选型时应在 Vf、Vr、Io 与漏电随温度变化等维度综合权衡。
八、存储与运输注意事项
- 存放环境应干燥、避免高温与潮湿；长期储存请遵循厂家建议的储存条件。
- 运输与焊接时注意避免机械应力与静电，焊接温度曲线应符合封装的耐焊接标准。
如需更详细的电气特性曲线、热阻参数或封装机械图，请参阅 DOWO 官方数据手册或联系供应商获取 SP1545L-C 的完整规格书。
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