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DOWO SP1045L
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- DOWO SP1045L
- Type
- DOWO
- Minimum package
- 5000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- DOWO
- Electronic Component
- SP1045L
- Electronic Component
- 1
- Package
- TO-277B
- Electronic Component
- Schottky Diode
- Electronic Component
- 0.168g
- Electronic Component
- 1
- Electronic Component
- BM0264866291
- Current
- 10A
- Diode
- 1
- Current(Ir)
- 150uA@45V
- (Vf)
- 470mV
- 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.
SP1045L 产品概述
一、主要参数
- 型号：SP1045L（DOWO 东沃）
- 二极管类型：肖特基（独立式，单颗）
- 典型正向压降 (Vf)：0.47 V
- 直流反向耐压 (Vr)：45 V
- 额定整流电流：10 A
- 反向漏电流 (Ir)：150 μA @ 45 V
- 非重复峰值浪涌电流 (Ifsm)：220 A
- 工作结温范围：-55 ℃ ~ +150 ℃
- 封装：TO-277B
二、产品特点
- 低正向压降：0.47 V 的典型 Vf 能有效降低整流与开关损耗，提升系统效率，适合要求低压降的电源链路。
- 低反向漏流：在45 V 反向电压下仅约150 μA 的漏电流，有利于减少待机损耗与高温下的泄漏问题。
- 高冲击承受力：220 A 的非重复峰值浪涌电流保证在启动或短时故障情况下具有良好鲁棒性。
- 宽工作温度：-55 ℃ 至 +150 ℃ 的结温范围适用于工业级和高温工况。
- TO-277B 封装：单独器件，便于安装于散热片或机箱，利于热管理与高电流连接。
三、典型应用场景
- 开关电源（SMPS）整流与续流二极管，替代传统快恢复二极管以降低导通损耗。
- DC-DC 转换器的自由轮回（二极管续流）以及输出整流。
- 电源 OR-ing 与反向电压保护（用于电池切换、电源备份）。
- 服务器、电信与工业电源模块中作为高电流整流器件。
- 低压大电流应用场合，如电机驱动供电回路的续流保护。
四、散热与使用注意
- 虽为 10 A 额定器件，但长期在接近额定电流的工况下需采用合适散热措施（散热片、导热垫或机壳接触），并做热环境与结温退让设计。
- 在高结温下正向压降与漏电流都会上升，应按实际工作温度进行功率耗散与可靠性评估，必要时选择更高余量的器件或并联使用（注意均流问题）。
- 推荐在实际应用中做浪涌和热循环测试，验证 Ifsm 冲击与长期热稳定性。
五、封装与安装
- TO-277B 单颗封装，适合螺栓/螺丝固定或直接焊接至散热片（安装方式请参考厂商机械图纸）。
- 安装时注意绝缘需求与接地管理，确保散热片与导通路径的良好热接触同时满足电气隔离要求（如需隔热垫圈请选用合适厚度与热阻的材料）。
六、选型建议与采购提示
- 若系统电压接近或高于 45 V，应选用耐压更高的型号；如需更低正向压降或更小漏电流，可考虑更高规格的肖特基或同步整流方案。
- 采购时确认生产批次、规格书及机械图，以确保封装和热参数满足设计需求；如需可靠性数据（如寿命、RoHS、AEC-Q 等认证），请向 DOWO 正式供应渠道索取。
- 在高脉冲或并联使用场合，注意器件的电流分配与瞬态应力，必要时增加限流或软启动措施以延长寿命。
如需详细电气特性曲线、尺寸图或封装热阻参数，可提供具体设计条件，我方可协助进一步评估并推荐匹配的散热与保护方案。
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